ITEM 1. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
XOMA CORPORATION
CONDENSED CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share amounts)
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | March 31, | ​ | December 31, |
| ​ | 2021 | 2020 |
| ​ | ​ | (unaudited) | ​ | (Note 1) |
| ASSETS | ​ | ​ | ​ | ​ | ​ | ​ |
| Current assets: | ​ | ​ | ​ | ​ | ​ | ​ |
| Cash | ​ | $ | 67,808 | ​ | $ | 84,222 |
| Restricted cash | ​ | ​ | 2,142 | ​ | ​ | 1,611 |
| Trade and other receivables, net | ​ | 80 | ​ | 263 |
| Income tax receivable | ​ | ​ | — | ​ | ​ | 1,526 |
| Prepaid expenses and other current assets | ​ | 218 | ​ | 443 |
| Total current assets | ​ | 70,248 | ​ | 88,065 |
| Long-term restricted cash | ​ | ​ | — | ​ | ​ | 531 |
| Property and equipment, net | ​ | 19 | ​ | 21 |
| Operating lease right-of-use assets | ​ | ​ | 320 | ​ | ​ | 359 |
| Long-term royalty receivables | ​ | 48,075 | ​ | 34,575 |
| Equity securities | ​ | 1,021 | ​ | 1,693 |
| Other assets | ​ | 210 | ​ | 41 |
| Total assets | ​ | $ | 119,893 | ​ | $ | 125,285 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| LIABILITIES AND STOCKHOLDERS’ EQUITY | ​ | ​ | ​ | ​ | ​ | ​ |
| Current liabilities: | ​ | ​ | ​ | ​ | ​ | ​ |
| Accounts payable | ​ | $ | 671 | ​ | $ | 456 |
| Accrued and other liabilities | ​ | 1,376 | ​ | 642 |
| Contingent consideration under royalty purchase agreements | ​ | ​ | 75 | ​ | ​ | 75 |
| Operating lease liabilities | ​ | ​ | 183 | ​ | ​ | 179 |
| Unearned revenue recognized under units-of-revenue method | ​ | 1,482 | ​ | 1,452 |
| Contingent liabilities | ​ | 1,410 | ​ | 1,410 |
| Current portion of long-term debt | ​ | 7,201 | ​ | 8,088 |
| Preferred stock dividend accrual | ​ | ​ | 707 | ​ | ​ | — |
| Total current liabilities | ​ | 13,105 | ​ | 12,302 |
| Unearned revenue recognized under units-of-revenue method – long-term | ​ | 13,130 | ​ | 13,516 |
| Long-term debt | ​ | 11,654 | ​ | 12,764 |
| Long-term operating lease liabilities | ​ | ​ | 182 | ​ | ​ | 229 |
| Other liabilities – long-term | ​ | 102 | ​ | 50 |
| Total liabilities | ​ | 38,173 | ​ | 38,861 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Commitments and Contingencies (Note 10) | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Stockholders’ equity: | ​ | ​ | ​ | ​ | ​ | ​ |
| Preferred Stock, $ 0.05 par value, 1,000,000 shares authorized: | ​ | ​ | ​ | ​ | ​ | ​ |
| 8.625 % Series A cumulative, perpetual preferred stock, 984,000 shares issued and outstanding at March 31, 2021 and December 31, 2020 | ​ | ​ | 49 | ​ | ​ | 49 |
| Convertible preferred stock, 5,003 shares issued and outstanding at March 31, 2021 and December 31, 2020 | ​ | — | ​ | — |
| Common stock, $ 0.0075 par value, 277,333,332 shares authorized, 11,259,926 and 11,228,792 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively | ​ | 84 | ​ | 84 |
| Additional paid-in capital | ​ | 1,270,046 | ​ | 1,267,377 |
| Accumulated deficit | ​ | ( 1,188,459 ) | ​ | ( 1,181,086 ) |
| Total stockholders’ equity | ​ | 81,720 | ​ | 86,424 |
| Total liabilities and stockholders’ equity | ​ | $ | 119,893 | ​ | $ | 125,285 |

​
The accompanying notes are an integral part of these condensed consolidated financial statements.
(Note 1) The consolidated balance sheet as of December 31, 2020, has been derived from the audited consolidated financial statements as of that date included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.
1
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended |
| ​ | ​ | March 31, |
| ​ | 2021 | 2020 |
| Revenues: | ​ | ​ | ​ | ​ | ​ | ​ |
| Revenue from contracts with customers | ​ | $ | 19 | ​ | $ | 500 |
| Revenue recognized under units-of-revenue method | ​ | 356 | ​ | 304 |
| Total revenues | ​ | 375 | ​ | 804 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Operating expenses: | ​ | ​ | ​ | ​ |
| Research and development | ​ | 61 | ​ | 62 |
| General and administrative | ​ | 6,741 | ​ | 6,358 |
| Total operating expenses | ​ | 6,802 | ​ | 6,420 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Loss from operations | ​ | ( 6,427 ) | ​ | ( 5,616 ) |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Other income (expense), net: | ​ | ​ | ​ | ​ |
| Interest expense | ​ | ( 289 ) | ​ | ( 542 ) |
| Other expense, net | ​ | ( 657 ) | ​ | ( 126 ) |
| Loss before income tax | ​ | ( 7,373 ) | ​ | ( 6,284 ) |
| Income tax benefit | ​ | — | ​ | 1,526 |
| Net loss and comprehensive loss | ​ | $ | ( 7,373 ) | ​ | $ | ( 4,758 ) |
| Less: Series A accumulated dividends | ​ | ​ | ( 530 ) | ​ | ​ | — |
| Net loss available to common stockholders, basic and diluted | ​ | $ | ( 7,903 ) | ​ | $ | ( 4,758 ) |
| Basic and diluted net loss per share available to common stockholders | ​ | $ | ( 0.70 ) | ​ | $ | ( 0.49 ) |
| Weighted average shares used in computing basic and diluted net loss per share available to common stockholders | ​ | 11,240 | ​ | ​ | 9,761 |

| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | Series A | ​ | Convertible | ​ | ​ | ​ | ​ | ​ | ​ | Additional | ​ | ​ | ​ | ​ | Total |
| ​ | Preferred Stock | ​ | Preferred Stock | ​ | Common Stock | ​ | Paid-In | ​ | Accumulated | ​ | Stockholders’ |
| ​ | Shares | Amount | ​ | Shares | Amount | Shares | Amount | Capital | Deficit | Equity |
| Balance, December 31, 2020 | 984 | ​ | $ | 49 | ​ | 5 | ​ | $ | — | 11,229 | ​ | $ | 84 | ​ | $ | 1,267,377 | ​ | $ | ( 1,181,086 ) | ​ | $ | 86,424 |
| Exercise of stock options | — | ​ | — | ​ | — | ​ | — | 24 | ​ | — | ​ | 388 | ​ | — | ​ | 388 |
| Exercise of common stock warrants | — | ​ | — | ​ | — | ​ | — | ​ | 5 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — |
| Issuance of common stock related to 401(k) contribution | — | ​ | — | ​ | — | ​ | — | 2 | ​ | — | ​ | 90 | ​ | — | ​ | 90 |
| Stock-based compensation expense | — | ​ | — | ​ | — | ​ | — | — | ​ | — | ​ | 2,898 | ​ | — | ​ | 2,898 |
| Preferred stock dividends | — | ​ | — | ​ | — | ​ | — | — | ​ | — | ​ | ​ | ( 707 ) | ​ | ​ | — | ​ | ​ | ( 707 ) |
| Net loss and comprehensive loss | — | ​ | — | ​ | — | ​ | — | — | ​ | — | ​ | — | ​ | ( 7,373 ) | ​ | ( 7,373 ) |
| Balance, March 31, 2021 | 984 | ​ | $ | 49 | ​ | 5 | ​ | $ | — | 11,260 | ​ | $ | 84 | ​ | $ | 1,270,046 | ​ | $ | ( 1,188,459 ) | ​ | $ | 81,720 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | Series A | ​ | Convertible | ​ | ​ | ​ | ​ | ​ | ​ | Additional | ​ | ​ | ​ | ​ | Total |
| ​ | Preferred Stock | ​ | Preferred Stock | ​ | Common Stock | ​ | Paid-In | ​ | Accumulated | ​ | Stockholders’ |
| ​ | Shares | Amount | ​ | Shares | Amount | Shares | Amount | Capital | Deficit | Equity |
| Balance, December 31, 2019 | — | ​ | $ | — | ​ | 6 | ​ | $ | — | 9,759 | ​ | $ | 73 | ​ | $ | 1,238,299 | ​ | $ | ( 1,194,384 ) | ​ | $ | 43,988 |
| Issuance of common stock related to 401(k) contribution | — | ​ | — | ​ | — | ​ | — | 3 | ​ | — | ​ | 88 | ​ | — | ​ | 88 |
| Stock-based compensation expense | — | ​ | — | ​ | — | ​ | — | — | ​ | — | ​ | 1,788 | ​ | — | ​ | 1,788 |
| Disgorgement of stockholder's short-swing profits | — | ​ | — | ​ | — | ​ | — | — | ​ | — | ​ | 13 | ​ | — | ​ | 13 |
| Net loss and comprehensive loss | — | ​ | — | ​ | — | ​ | — | — | ​ | — | ​ | — | ​ | ( 4,758 ) | ​ | ( 4,758 ) |
| Balance, March 31, 2020 | — | ​ | $ | — | ​ | 6 | ​ | $ | — | 9,762 | ​ | $ | 73 | ​ | $ | 1,240,188 | ​ | $ | ( 1,199,142 ) | ​ | $ | 41,119 |

| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended March 31, |
| ​ | 2021 | 2020 |
| Cash flows from operating activities: | ​ | ​ | ​ | ​ | ​ | ​ |
| Net loss | ​ | $ | ( 7,373 ) | ​ | $ | ( 4,758 ) |
| Adjustments to reconcile net loss to net cash used in operating activities: | ​ | ​ | ​ | ​ | ​ | ​ |
| Stock-based compensation expense | ​ | 2,898 | ​ | 1,788 |
| Common stock contribution to 401(k) | ​ | 90 | ​ | 88 |
| Depreciation and amortization | ​ | 2 | ​ | 6 |
| Amortization of debt issuance costs, debt discount and final payment on debt | ​ | 127 | ​ | 191 |
| Provision for bad debt | ​ | ​ | — | ​ | ​ | 1,409 |
| Non-cash lease expense | ​ | 39 | ​ | 37 |
| Change in fair value of equity securities | ​ | 672 | ​ | 273 |
| Changes in assets and liabilities: | ​ | ​ | ​ | ​ | ​ | ​ |
| Trade and other receivables, net | ​ | 183 | ​ | 212 |
| Income tax receivable | ​ | ​ | 1,526 | ​ | ​ | ( 1,526 ) |
| Prepaid expenses and other assets | ​ | 225 | ​ | 147 |
| Accounts payable and accrued liabilities | ​ | 1,046 | ​ | 38 |
| Operating lease liabilities | ​ | ​ | ( 44 ) | ​ | ​ | ( 39 ) |
| Unearned revenue recognized under units-of-revenue method | ​ | ( 356 ) | ​ | ( 304 ) |
| Other liabilities | ​ | 51 | ​ | 158 |
| Net cash used in operating activities | ​ | ( 914 ) | ​ | ( 2,280 ) |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Cash flows from investing activities: | ​ | ​ | ​ | ​ | ​ | ​ |
| Payments related to purchase of royalty rights | ​ | ( 13,500 ) | ​ | — |
| Net cash used in investing activities | ​ | ( 13,500 ) | ​ | — |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Cash flows from financing activities: | ​ | ​ | ​ | ​ | ​ | ​ |
| Proceeds from exercise of options | ​ | 508 | ​ | — |
| Payment of preferred and common stock issuance costs for current and prior year | ​ | ​ | ( 264 ) | ​ | ​ | ( 166 ) |
| Principal payments – debt | ​ | ( 2,125 ) | ​ | ( 938 ) |
| Principal payments – finance lease | ​ | — | ​ | ( 5 ) |
| Proceeds from disgorgement of stockholder's short-swing profits | ​ | ​ | — | ​ | ​ | 13 |
| Taxes paid related to net share settlement of equity awards | ​ | ( 119 ) | ​ | — |
| Net cash used in financing activities | ​ | ( 2,000 ) | ​ | ( 1,096 ) |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Net decrease in cash and restricted cash | ​ | ( 16,414 ) | ​ | ( 3,376 ) |
| Cash and restricted cash at the beginning of the period | ​ | 86,364 | ​ | 56,688 |
| Cash and restricted cash at the end of the period | ​ | $ | 69,950 | ​ | $ | 53,312 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Supplemental Cash Flow Information: | ​ | ​ | ​ | ​ | ​ |
| Cash paid for interest | ​ | $ | 120 | ​ | $ | 199 |
| Non-cash investing and financing activities: | ​ | ​ | ​ |
| Preferred stock dividend accrual | ​ | $ | 707 | ​ | $ | — |
| Accrued financing costs related to issuance of common stock | ​ | $ | 87 | ​ | $ | — |
| Accrued financing costs related to issuance of preferred stock | ​ | $ | 81 | ​ | $ | — |

XOMA CORPORATIONNOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(unaudited) 1. Description of BusinessXOMA Corporation (referred to as “XOMA” or the “Company”), a Delaware corporation, is a biotech royalty aggregator with a sizable portfolio of economic rights to future potential milestone and royalty payments associated with partnered pre-commercial therapeutic candidates. The Company’s portfolio was built through licensing its proprietary products and platforms from its legacy discovery and development business, combined with acquisitions of rights to future milestones and royalties that the Company has made since the royalty aggregator business model was implemented in 2017. The Company’s drug royalty aggregator business is focused on early to mid-stage clinical assets primarily in Phase 1 and 2 with blockbuster potential licensed to large-cap partners. The Company expects that most of its future revenue will be based on payments the Company may receive for milestones and royalties related to these programs.Liquidity and Financial ConditionThe Company has incurred significant operating losses and negative cash flows from operations since its inception. As of March 31, 2021, the Company had unrestricted and restricted cash of $ 70.0 million. The restricted cash balance may only be used to pay dividends on the 8.625 % Series A cumulative, perpetual preferred stock (“Series A Preferred Stock”) issued in December 2020. On April 9, 2021, the Company closed a public offering of 1,600,000 depositary shares, each representing a 1/1000th fractional interest in a share of the Company’s 8.375 % Series B cumulative, perpetual preferred stock (“Series B Preferred Stock”) for total gross proceeds of $ 40.0 million (Note 14). Based on the Company’s current cash balance and its ability to control discretionary spending, such as royalty acquisitions, the Company has evaluated and concluded its financial condition is sufficient to fund its planned operations and commitments and contractual obligations for a period of at least one year following the date that these condensed consolidated financial statements are issued.​ 2. Basis of Presentation and Significant Accounting Policies Basis of PresentationThe condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions among consolidated entities were eliminated upon consolidation. The unaudited condensed consolidated financial statements were prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. As permitted under those rules certain footnotes or other financial information can be condensed or omitted. These financial statements and related disclosures have been prepared with the assumption that users of the interim financial information have read or have access to the audited consolidated financial statements for the preceding fiscal year. Accordingly, these statements should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, filed with the U.S. Securities and Exchange Commission (“SEC”) on March 10, 2021.These financial statements have been prepared on the same basis as the Company’s annual consolidated financial statements and, in the opinion of management, reflect all adjustments, consisting only of normal recurring adjustments that are necessary for a fair statement of the Company’s consolidated financial information. The interim results of operations are not necessarily indicative of the results that may be expected for the full year. 5
| ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | Three Months Ended March 31, |
| ​ | 2021 | ​ | 2020 |
| ​ | ​ | ​ | ​ | ​ | ​ |
| Cash | $ | 67,808 | ​ | $ | 53,312 |
| Restricted cash | ​ | 2,142 | ​ | ​ | — |
| Total cash and restricted cash | $ | 69,950 | ​ | $ | 53,312 |

Revenue RecognitionThe Company recognizes revenue from all contracts with customers according to Accounting Standards Codification (“ASC”) Topic 606, Revenue from Contracts with Customers ("ASC 606"), except for contracts that are within the scope of other standards, such as leases, insurance, collaboration arrangements and financial instruments. The Company recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the Company expects to receive in exchange for those goods or services.To determine revenue recognition for arrangements that the Company determines are within the scope of ASC 606, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the Company satisfies a performance obligation. The Company only applies the five-step model to contracts when it is probable that the Company will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer. At contract inception, once the contract is determined to be within the scope of ASC 606, the Company assesses the goods or services promised within each contract and determines those that are performance obligations, and assesses whether each promised good or service is distinct. The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation based on relative fair values, when (or as) the performance obligation is satisfied.The Company recognizes revenue from its license and collaboration arrangements and royalties. The terms of the arrangements generally include payment to the Company of one or more of the following: non-refundable, upfront license fees, development, regulatory and commercial milestone payments, and royalties on net sales of licensed products.License of intellectual propertyIf the license to the Company’s intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, the Company recognizes revenue from non-refundable, upfront fees allocated to the license when the license is transferred to the customer and the customer is able to use and benefit from the license. For licenses that are bundled with other promises, such as transfer of related materials, process and know-how, the Company utilizes judgement to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time. Under the Company’s license agreements, the nature of the combined performance obligation is the granting of licenses to the customers as the other promises are not separately identifiable in the context of the arrangement. Since the Company grants the license to a customer as it exists at the point of transfer, and is not involved in any future development or commercialization of the products related to the license, the nature of the license is a right to use the Company’s intellectual property as transferred. As such, the Company recognizes revenue related to the combined performance obligation upon completion of the delivery of the related materials, process and know-how (i.e., at a point in time).Milestone paymentsAt the inception of each arrangement that includes development and regulatory milestone payments, the Company evaluates whether the milestones are considered probable of being reached and estimates the amount to be included in the transaction price. ASC 606 suggests two alternatives to use when estimating the amount of variable consideration: the expected value method and the most likely amount method. Under the expected value method, an entity considers the sum of probability-weighted amounts in a range of possible consideration amounts. Under the most likely amount method, an entity considers the single most likely amount in a range of possible consideration amounts. The Company uses the most likely amount method for development and regulatory milestone payments. 7
If it is probable that a significant cumulative revenue reversal would not occur, the associated milestone value is included in the transaction price. Milestone payments that are not within the control of the Company or the licensee, such as regulatory approvals, are not considered probable of being achieved until those approvals are received. The transaction price is then allocated to each performance obligation on a relative stand-alone selling price basis. The Company recognizes revenue as or when the performance obligations under the contract are satisfied. At the end of each subsequent reporting period, the Company re-evaluates the probability or achievement of each such milestone and any related constraint, and if necessary, adjusts its estimates of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect revenue and earnings in the period of adjustment.RoyaltiesFor arrangements that include sales-based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied).Upfront payments and fees are recorded as deferred revenue upon receipt or when due and may require deferral of revenue recognition to a future period until the Company performs its obligations under these arrangements. Amounts payable to the Company are recorded as accounts receivable when the Company’s right to consideration is unconditional. The Company does not assess whether a contract has a significant financing component if the expectation at contract inception is such that the period between payment by the customer and the transfer of the promised goods or services to the customer will be one year or less. Sale of Future Revenue StreamsThe Company has sold its rights to receive certain milestones and royalties on product sales. In the circumstance where the Company has sold its rights to future milestones and royalties under a license agreement and also maintains limited continuing involvement in the arrangement (but not significant continuing involvement in the generation of the cash flows that are due to the purchaser), the Company defers recognition of the proceeds it receives for the sale of milestone or royalty streams and recognizes such unearned revenue as revenue under units-of-revenue method over the life of the underlying license agreement. Under the units-of-revenue method, amortization for a reporting period is calculated by computing a ratio of the proceeds received from the purchaser to the total payments expected to be made to the purchaser over the term of the agreement, and then applying that ratio to the period’s cash payment.Estimating the total payments expected to be received by the purchaser over the term of such arrangements requires management to use subjective estimates and assumptions. Changes to the Company’s estimate of the payments expected to be made to the purchaser over the term of such arrangements could have a material effect on the amount of revenues recognized in any particular period. Stock-Based CompensationThe Company recognizes compensation expense for all stock-based payment awards made to the Company’s employees, consultants and directors that are expected to vest based on estimated fair values. The valuation of stock option awards is determined at the date of grant using the Black-Scholes Option Pricing Model (the “Black-Scholes Model”). The Black-Scholes Model requires inputs such as the expected term of the option, expected volatility and risk-free interest rate. To establish an estimate of expected term, the Company considers the vesting period and contractual period of the award and its historical experience of stock option exercises, post-vesting cancellations and volatility. The estimate of expected volatility is based on the Company’s historical volatility. The risk-free rate is based on the yield available on United States Treasury zero-coupon issues corresponding to the expected term of the award. The Company records forfeitures when they occur. The Company records compensation expense for service-based awards on a straight-line basis over the requisite service period, which is generally the vesting period of the award, or to the date on which retirement eligibility is achieved, if shorter. 8
Equity SecuritiesThe Company received shares of common stock from Rezolute, Inc. (“Rezolute”) (Note 4). Equity investments in Rezolute are classified in the condensed consolidated balance sheets as equity securities. The equity securities are measured at fair value, with changes in fair value recorded in the other income (expense), net line item of the condensed consolidated statement of operations and comprehensive loss at each reporting period. The Company remeasures its equity investments at each reporting period until such time that the investment is sold or disposed of. If the Company sells an investment, any realized gains and losses on the sale of the securities will be recognized in the condensed consolidated statement of operations and comprehensive loss in the period of sale.In October 2020, Rezolute completed a 1:50 reverse stock split of its common shares (the “Rezolute Reverse Stock Split”) and started trading on the Nasdaq Stock Market. As a result, the Company’s number of shares of Rezolute common stock was reduced from 8,093,010 shares (pre-split shares) to 161,860 shares (post-split shares). Purchase of Rights to Future Milestones and RoyaltiesThe Company has purchased rights to receive a portion of certain future developmental, regulatory and commercial sales milestones, royalties and option fees on sales of products currently in clinical development. The Company acquired such rights from various entities and recorded the amount paid for these rights as long-term royalty receivables (Note 5). In addition, the Company may be obligated to make contingent payments related to certain product development milestones, fees upon exercise of options related to future license products and sales-based milestones. The contingent payments are evaluated whether they are freestanding instruments or embedded derivatives. If freestanding instruments, the contingent payments are measured at fair value at the inception of the arrangement, subject to remeasurement to fair value each reporting period. Any changes in the estimated fair value is recorded in the condensed consolidated statement of operations and comprehensive loss.The Company accounts for milestone and royalty rights related to developmental pipeline products on a non-accrual basis using the cost recovery method. These developmental pipeline products are non-commercialized, non-approved products that require Food and Drug Administration (“FDA”) or other regulatory approval, and thus have uncertain cash flows. The Company is not yet able to reliably forecast future cash flows given their pre-commercial stages of development. The related receivable balance is classified as noncurrent since no payments are probable to be received in the near term. Under the cost recovery method, any milestone or royalty payment received is recorded as a direct reduction of the recorded receivable balance. When the recorded receivable balance has been fully collected, any additional amounts collected are recognized as revenue.The Company reviews public information on clinical trials, press releases and updates from its partners regularly to identify any impairment indicators or changes in expected recoverability of the long-term royalty receivable asset. If an impairment indicator is identified, and the Company determines expected future cash flows discounted to the current period are less than the carrying value of the asset, the Company will record impairment. The impairment will be recognized by reducing the financial asset to an amount that represents the present value of the most recent estimate of future cash flows. No impairment indicators were identified, and no impairment was recorded as of March 31, 2021 and December 31, 2020. 9
LeasesThe Company leases its headquarters office space in Emeryville, California.The Company determines the initial classification and measurement of its right-of-use assets and lease liabilities at the lease commencement date and thereafter if modified. The lease term includes any renewal options and termination options that the Company is reasonably certain to exercise. The present value of lease payments is determined by using the interest rate implicit in the lease, if that rate is readily determinable; otherwise, the Company uses its incremental borrowing rate. The incremental borrowing rate is determined by using the rate of interest that the Company would pay to borrow on a collateralized basis an amount equal to the lease payments for a similar term and in a similar economic environment. The Company built its incremental borrowing rate starting with the interest rate on its fully collateralized debt and then adjusted it for lease term length. Rent expense for operating leases is recognized on a straight-line basis, unless the right-of-use asset has been impaired, over the reasonably assured lease term based on the total lease payments and is included in operating expenses in the condensed consolidated statements of operations and comprehensive loss.If an operating lease were to reflect impairment, the Company will recognize the amortization of the right-of-use asset on a straight-line basis over the remaining lease term with rent expense still included in operating expenses in the condensed consolidated statements of operations and comprehensive loss.For all leases, rent payments that are based on a fixed index or rate at the lease commencement date are included in the measurement of lease assets and lease liabilities at the lease commencement date.The Company has elected the practical expedient to not separate lease and non-lease components. The Company’s non-lease components are primarily related to property maintenance, which varies based on future outcomes, and thus is recognized in rent expense when incurred. Income TaxesThe Company accounts for income taxes using the liability method under which deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. Valuation allowances are established when necessary to reduce deferred tax assets to the amount which is more likely than not to be realizable.The recognition, derecognition and measurement of a tax position is based on management’s best judgment given the facts, circumstances and information available at each reporting date. The Company’s policy is to recognize interest and penalties related to the underpayment of income taxes as a component of income tax expense. To date, there have been no interest or penalties charged in relation to the unrecognized tax benefits. Net Loss per Share Attributable to Common StockholdersThe Company calculates basic and diluted loss per share attributable to common stockholders using the two-class method. The Company’s convertible Series X and Series Y preferred stocks participate in any dividends declared by the Company on its common stock and are therefore considered to be participating securities. The Company’s Series A Preferred Stock does not participate in any dividends or distribution by the Company on its common stock and is therefore not considered to be a participating security. 10
Under the two-class method, net income, as adjusted for any accumulated dividends on Series A Preferred Stock for the period and any deemed dividends related to beneficial conversion features on convertible preferred stock, if applicable, is allocated to each class of common stock and participating security as if all of the net income for the period had been distributed. Undistributed earnings allocated to participating securities are subtracted from net income in determining net income attributable to common stockholders. During periods of loss, the Company allocates no loss to participating securities because they have no contractual obligation to share in the losses of the Company. Basic net loss per share attributable to common stockholders is then calculated by dividing the net loss attributable to common stockholders by the weighted average number of shares of common stock outstanding during the period. All participating securities are excluded from the basic weighted average common shares outstanding.Diluted net loss per share attributable to common stockholders is based on the weighted average number of shares outstanding during the period, adjusted to include the assumed exercise of certain stock options and warrants for common stock. The calculation of diluted net loss per share attributable to common stockholders requires that, to the extent the average market price of the underlying shares for the reporting period exceeds the exercise price of any outstanding options or warrants, the presumed exercise of such securities are dilutive to net loss per share attributable to common stockholders for the period. Adjustments to the denominator are required to reflect the related dilutive shares. The Company’s Series A Preferred Stock becomes convertible upon the occurrence of specific events other than a change in the Company’s share price and therefore, is not included in the diluted shares until the contingency is resolved. Concentration of RiskCash and receivables are financial instruments which potentially subject the Company to concentrations of credit risk, as well as liquidity risk.The Company monitors the creditworthiness of its customers to which it grants credit terms in the normal course of business but does not generally require collateral on receivables. For the three months ended March 31, 2021, one partner represented 95 % of total revenues. For the three months ended March 31, 2020, two partners represented 62 % and 38 % of total revenues. As of December 31, 2020, one partner represented 100 % of the trade receivables, net balance. As of March 31, 2021, the Company had no trade receivables, net balance. Comprehensive LossComprehensive loss is comprised of two components: net loss and other comprehensive (loss) income. Other comprehensive (loss) income refers to gains and losses that under U.S. GAAP are recorded as an element of stockholders’ equity but are excluded from net loss. The Company did not record any transactions within other comprehensive (loss) income in the periods presented and, therefore, the net loss and comprehensive loss were the same for all periods presented. Accounting Pronouncements Recently AdoptedIn December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in ASU 2019-12 are intended to simplify various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. The Company adopted ASU 2019-12 on January 1, 2021. The adoption of ASU 2019-12 did not have a material impact on its condensed consolidated financial statements. 11
In August 2020, the FASB issued ASU 2020-06, Debt – Debt with Conversion and Other Options (Subtopic 470-20) and Derivative and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40). This ASU reduces the number of accounting models for convertible debt instruments and convertible preferred stock and amends the guidance for the derivatives scope exception for contracts in an entity’s own equity to reduce form-over-substance-based accounting conclusion. In addition, this ASU improves and amends the related EPS guidance. These amendments are effective for the Company for fiscal years beginning after December 15, 2023, including interim period within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Adoption is either a modified retrospective method or a fully retrospective method of transition. The Company adopted ASU 2020-06 on January 1, 2021. The adoption of this ASU did not have a material impact on its condensed consolidated financial statements.In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. These amendments provide temporary optional guidance to ease the potential burden in accounting for reference rate reform. The ASU provides optional expedients and exceptions for applying generally accepted accounting principles to contract modifications and hedging relationships, subject to meeting certain criteria, that reference LIBOR or another reference rate expected to be discontinued. It is intended to help stakeholders during the global market-wide reference rate transition period. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022 and can be adopted as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020. The Company adopted ASU 2020-04 as of January 1, 2021. The adoption of this ASU did not have a material impact on the Company’s condensed consolidated financial statements.Recent Accounting PronouncementsIn June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. ASU 2016-13 replaced the incurred loss impairment methodology under current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. ASU 2016-13 requires use of a forward-looking expected credit loss model for accounts receivables, loans, and other financial instruments. Adoption of the standard requires using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the effective date to align existing credit loss methodology with the new standard. ASU 2016-13 will be effective for all entities except public companies that are not smaller reporting companies for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, using a modified retrospective approach. Early adoption is permitted. The Company plans to adopt ASU 2016-13 and related updates on January 1, 2023. The Company is currently evaluating the impact of adopting this ASU on its condensed consolidated financial statements. ​ ​​ 3. Condensed Consolidated Financial Statements DetailsEquity SecuritiesAs of March 31, 2021 and December 31, 2020, equity securities consisted of an investment in Rezolute’s common stock of $ 1.0 million and $ 1.7 million, respectively (Note 4). For the three months ended March 31, 2021, the Company recognized losses of $ 0.7 million due to the change in fair value of its investment in Rezolute’s common stock in the other income (expense), net line item of the condensed consolidated statements of operations and comprehensive loss. The Company recognized a loss of $ 0.3 million for the three months ended March 31, 2020. 12
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | March 31, | ​ | December 31, |
| ​ | 2021 | 2020 |
| Accrued legal and accounting fees | ​ | $ | 949 | ​ | $ | 351 |
| Accrued incentive compensation | ​ | ​ | 231 | ​ | ​ | 71 |
| Accrued payroll and other benefits | ​ | 111 | ​ | 136 |
| Other | ​ | ​ | 50 | ​ | ​ | 40 |
| Interest payable | ​ | 35 | ​ | 44 |
| Total | ​ | $ | 1,376 | ​ | $ | 642 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended March 31, |
| ​ | 2021 | 2020 |
| Numerator | ​ | ​ |
| Net loss | ​ | $ | ( 7,373 ) | ​ | $ | ( 4,758 ) |
| Less: Series A accumulated dividends | ​ | ( 530 ) | ​ | ​ | — |
| Net loss available to common stockholders, basic and diluted | ​ | $ | ( 7,903 ) | ​ | $ | ( 4,758 ) |
| ​ | ​ | ​ | ​ | ​ |
| Denominator | ​ | ​ | ​ | ​ |
| Weighted average shares used in computing basic and diluted net loss per share available to common stockholders | ​ | 11,240 | ​ | 9,761 |
| Basic and diluted net loss per share of common stock | ​ | $ | ( 0.70 ) | ​ | $ | ( 0.49 ) |
| ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended March 31, |
| ​ | 2021 | 2020 |
| Convertible preferred stock | ​ | 5,003 | ​ | 6,256 |
| Common stock options | 277 | ​ | 532 |
| Warrants for common stock | 5 | ​ | 15 |
| Total | 5,285 | 6,803 |

License Agreement will remain in effect, on a country-by-country and product-by-product basis, until Novartis International’s royalty obligations end. The Anti-TGFβ Antibody License Agreement contains customary termination rights relating to material breach by either party. Novartis International also has a unilateral right to terminate the Anti-TGFβ Antibody License Agreement on an antibody-by-antibody and country-by-country basis or in its entirety on one hundred eighty days ’ notice.The Company concluded that there were multiple promised goods and services under the Anti-TGFβ Antibody License Agreement, including the transfer of license, regulatory services and transfer of materials, process and know-how, which were determined to represent one combined performance obligation. The Company recognized the entire upfront payment of $ 37.0 million as revenue in the consolidated statement of comprehensive loss in 2015 as it had completed its performance obligations as of December 31, 2015.The Company is eligible to receive up to a total of $ 480.0 million in development, regulatory and commercial milestones under the Anti-TGFβ Antibody License Agreement. During the year ended December 31, 2017, Novartis International achieved a clinical development milestone pursuant to the Anti-TGFβ Antibody License Agreement, and as a result, the Company earned a $ 10.0 million milestone payment which was recognized as license fees in the consolidated statement of operations and comprehensive loss. The Company concluded that the development and regulatory milestone payments are solely dependent on Novartis International’s performance and achievement of the specified events. The Company determined that it is not probable that a significant cumulative revenue reversal will not occur in future periods for these future payments. Therefore, the remaining development and regulatory milestones are fully constrained and excluded from the transaction price until the respective milestone is achieved. Any consideration related to commercial milestones (including royalties) will be recognized when the related sales occur as they were determined to relate predominantly to the licenses granted to Novartis International and therefore, have also been excluded from the transaction price. At the end of each reporting period, the Company will update its assessment of whether an estimate of variable consideration is constrained and update the estimated transaction price accordingly.The Company is also eligible to receive royalties on sales of licensed products, which are tiered based on sales levels and range from a mid single-digit percentage rate to up to a low double-digit percentage rate. Novartis International’s obligation to pay royalties with respect to a particular product and country will continue for the longer of the date of expiration of the last valid patent claim covering the product in that country, or ten years from the date of the first commercial sale of the product in that country.On October 21, 2020, the first patient was dosed in Novartis International's NIS793 Phase 2 clinical trial and the Company earned a $ 25.0 million milestone payment. As specified under the terms the Anti-TGFβ Antibody License Agreement, the Company received $ 17.7 million in cash and the remaining balance of $ 7.3 million was recognized as a reduction to the Company's debt obligation to Novartis. The Company is eligible to receive up to a total of $ 445.0 million in the remaining development, regulatory and commercial milestones under the Anti-TGFβ Antibody License Agreement.As of March 31, 2021 and December 31, 2020, there were no contract assets or contract liabilities related to this agreement. None of the costs to obtain or fulfill the contract were capitalized. No revenue was recognized for the three months ended March 31, 2021 and 2020. Novartis – Gevokizumab (VPM087) and IL-1 BetaOn August 24, 2017, the Company and Novartis Pharma AG (“Novartis”) entered into a license agreement (the “Gevokizumab License Agreement”) under which the Company granted to Novartis an exclusive, worldwide, royalty-bearing license to gevokizumab (“VPM087”), a novel anti-Interleukin-1 (“IL-1”) beta allosteric monoclonal antibody and related know-how and patents (altogether, the “XOMA IP”). Under the terms of the Gevokizumab License Agreement, Novartis is solely responsible for the development and commercialization of VPM087 and products containing VPM087.On August 24, 2017, pursuant to a separate agreement (the “IL-1 Target License Agreement”), the Company granted to Novartis non-exclusive licenses to its intellectual property covering the use of IL-1 beta targeting antibodies in 14
the treatment and prevention of cardiovascular disease and other diseases and conditions, and an option to obtain an exclusive license (the “Exclusivity Option”) to such intellectual property for the treatment and prevention of cardiovascular disease.Under the Gevokizumab License Agreement, the Company received total consideration of $ 30.0 million for the license and rights granted to Novartis. Of the total consideration, $ 15.7 million was paid in cash and $ 14.3 million (equal to € 12.0 million) was paid by Novartis Institutes for BioMedical Research, Inc. (“NIBR”), on behalf of the Company, to settle the Company’s outstanding debt with Les Laboratories Servier (“Servier”) (the “Servier Loan”). In addition, NIBR extended the maturity date on the Company’s debt to Novartis. The Company also received $ 5.0 million cash related to the sale of 539,131 shares of the Company’s common stock, at a purchase price of $ 9.2742 per share. The fair market value of the common stock issued to Novartis was $ 4.8 million, based on the closing stock price of $ 8.93 per share on August 24, 2017, resulting in a $ 0.2 million premium paid to the Company.Based on the achievement of pre-specified criteria, the Company is eligible to receive up to $ 438.0 million in development, regulatory and commercial milestones under the Gevokizumab License Agreement. The Company is also eligible to receive royalties on sales of licensed products, which are tiered based on sales levels and range from the high single-digits to mid-teens. Under the IL-1 Target License Agreement, the Company received an upfront cash payment of $ 10.0 million and is eligible to receive low single-digit royalties on canakinumab sales in cardiovascular indications covered by the Company’s patents. Should Novartis exercise the Exclusivity Option, the royalties on canakinumab sales will increase to the mid single-digits.Unless terminated earlier, the Gevokizumab License Agreement and IL-1 Target License Agreement will remain in effect, on a country-by-country and product-by-product basis, until Novartis’ royalty obligations end. The two agreements contain customary termination rights relating to material breach by either party. Novartis also has a unilateral right to terminate the Gevokizumab License Agreement on a product-by-product and country-by-country basis or in its entirety on six months ’ prior written notice to the Company. Under the IL-1 Target License Agreement, Novartis has a unilateral right to terminate the agreement on a product-by-product and country-by-country basis or in its entirety upon a prior written notice.The Gevokizumab License Agreement and IL-1 Target License Agreement were accounted for as one arrangement because they were entered into at the same time in contemplation of each other. The Company concluded that there are multiple promised goods and services under the combined arrangement, including the transfer of license to IL-1 beta targeting antibodies, and the transfer of license, know-how, process, materials and inventory related to the VPM087 antibody, which were determined to represent two distinct performance obligations. The Company determined that the Exclusivity Option is not an option with material right because the upfront payments to the Company were not negotiated to provide an incremental discount for the future additional royalties upon exercise of the Exclusivity Option. Therefore, the Company concluded that the Exclusivity Option is not a performance obligation. The additional royalties will be recognized as revenue when, and if, Novartis exercises its option because the Company has no further performance obligations at that point.At the inception of the arrangement, the Company determined that the transaction price under the arrangement was $ 40.2 million, which consisted of the $ 25.7 million upfront cash payments, the $ 14.3 million Servier Loan payoff and the $ 0.2 million premium on the sale of the common stock. The transaction price was allocated to the two performance obligations based on their standalone selling prices. The Company determined that the nature of the two performance obligations is the right to use the licenses as they exist at the point of transfer, which occurred when the transfer of materials, process and know-how, and filings to regulatory authority were completed. During the year ended December 31, 2017, the Company recognized the entire transaction price of $ 40.2 million as revenue upon completion of the delivery of the licenses and related materials, process and know-how and filings to regulatory authority.The Company concluded that the development and regulatory milestone payments are solely dependent on Novartis’ performance and achievement of specified events. The Company determined that it is not probable that a significant cumulative revenue reversal will not occur in future periods for these future payments. Therefore, the development and regulatory milestones are fully constrained and excluded from the transaction price until the respective milestone is achieved. Any consideration related to commercial milestones (including royalties) will be recognized when 15
the related sales occur as they were determined to relate predominantly to the licenses granted to Novartis and therefore, have also been excluded from the transaction price. At the end of each reporting period, the Company will update its assessment of whether an estimate of variable consideration is constrained and update the estimated transaction price accordingly.As of March 31, 2021 and December 31, 2020, there were no contract assets or contract liabilities related to this arrangement. None of the costs to obtain or fulfill the contract were capitalized. No revenue was recognized for the three months ended March 31, 2021 and 2020.TakedaOn November 1, 2006, the Company entered into a collaboration agreement with Takeda Pharmaceutical Company Limited (“Takeda”) (the “Takeda Collaboration Agreement”) under which the Company agreed to discover and optimize therapeutic antibodies against multiple targets selected by Takeda.Under the terms of the Takeda Collaboration Agreement, the Company may receive additional milestone payments aggregating up to $ 19.0 million relating to TAK-079 (mezagitamab) and low single-digit royalties on future sales of all products subject to this license. The Company’s right to milestone payments expires on the later of the receipt of payment from Takeda of the last amount to be paid under the agreement or the cessation by Takeda of all research and development activities with respect to all program antibodies, collaboration targets or collaboration products. The Company’s right to royalties expires on the later of 13.5 years from the first commercial sale of each royalty-bearing discovery product or the expiration of the last-to-expire licensed patent (or 12 years from first commercial sale if there is significant generic competition post patent-expiration).In February 2009, the Company expanded the existing collaboration to provide Takeda with access to multiple antibody technologies, including a suite of research and development technologies and integrated information and data management systems. The Company may receive milestones of up to $ 3.3 million per discovery product candidate and low single-digit royalties on future sales of all antibody products subject to this license. The Company’s right to milestone payments expires on the later of the receipt of payment from Takeda of the last amount to be paid under the agreement or the cessation by Takeda of all research and development activities with respect to all program antibodies, collaboration targets or collaboration products. The Company’s right to royalties expires on the later of 10 years from the first commercial sale of such royalty-bearing discovery product or the expiration of the last-to-expire licensed patent.On November 16, 2020, the first patient was dosed in Takeda’s Phase 2 study of mezagitamab, and the Company earned a $ 2.0 million milestone payment from Takeda.As of March 31, 2021 and December 31, 2020, there were no contract assets or contract liabilities related to this arrangement. None of the costs to obtain or fulfill the contract were capitalized. No revenue was recognized for the three months ended March 31, 2021 and 2020. RezoluteOn December 6, 2017, the Company entered into a license agreement with Rezolute pursuant to which the Company granted an exclusive global license to Rezolute to develop and commercialize X358 (now “RZ358”) products for all indications. The Company and Rezolute also entered into a common stock purchase agreement pursuant to which Rezolute agreed to issue to the Company, as consideration for receiving the license for RZ358, a certain number of its common stock related to its future financing activities.Under the terms of the license agreement, Rezolute is responsible for all development, regulatory, manufacturing and commercialization activities associated with RZ358 and is required to make certain development, regulatory and commercial milestone payments to the Company of up to $ 232.0 million in the aggregate based on the achievement of pre-specified criteria. Under the license agreement, the Company is also eligible to receive royalties ranging from the high single-digits to the mid-teens based upon annual net sales of any commercial product incorporating RZ358. Rezolute is obligated to take customary steps to advance RZ358, including using diligent efforts to commence the next clinical study 16
for RZ358 by a certain deadline and to meet certain spending requirements on an annual basis for the program until a marketing approval application for RZ358 is accepted by the FDA. Rezolute’s obligation to pay royalties with respect to a particular RZ358 product and country will continue for the longer of the date of expiration of the last valid patent claim covering the product in that country, or twelve years from the date of the first commercial sale of the product in that country. Rezolute’s future royalty obligations in the United States will be reduced by 20 % if the manufacture, use or sale of a licensed product is not covered by a valid XOMA patent claim, until such a claim is issued.Under the terms of the license agreement, the Company is eligible to receive a low single-digit royalty on sales of Rezolute’s other non-RZ358 products from its current programs. Rezolute’s obligation to pay royalties with respect to a particular Rezolute product and country will continue for the longer of twelve years from the date of the first commercial sale of the product in that country or for so long as Rezolute or its licensee is selling such product in such country (the “Royalty Term”), provided that any such licensee royalty will terminate upon the termination of the licensee’s obligation to make payments to Rezolute based on sales of such product in such country. Rezolute had an option through June 1, 2019 to obtain an exclusive license for their choice of one of the Company’s preclinical monoclonal antibody fragments, including X129 (the “Additional Product Option”), in exchange for a $ 1.0 million upfront option fee and additional clinical, regulatory and commercial milestone payments to the Company of up to $ 237.0 million in the aggregate based on the achievement of pre-specified criteria as well as royalties ranging from the high single-digits to the mid-teens based on annual net sales. On June 1, 2019, Rezolute’s right to the Additional Product Option expired unexercised.The license agreement contains customary termination rights relating to material breach by either party. Rezolute also has a unilateral right to terminate the license agreement in its entirety on ninety days ’ notice at any time. The Company has the right to terminate the license agreement if Rezolute challenges the licensed patents.Under the license agreement and common stock purchase agreement, no consideration was exchanged upon execution of the arrangement. In consideration for receiving the license for RZ358, Rezolute agreed to issue shares of its common stock and pay cash to the Company upon the occurrence of Rezolute’s financing activities and the amounts to be paid to be based on the timing of those activities.Rezolute License Agreement - First AmendmentIn March 2018, the Company and Rezolute amended the license agreement and common stock purchase agreement. Pursuant to the as-amended terms of the license agreement and common stock purchase agreement, the Company was eligible to receive $ 6.0 million in cash, $ 8.5 million of Rezolute’s common stock, and 7,000,000 shares ( 140,000 post-split shares) of Rezolute’s common stock, contingent on the completion of Rezolute’s financing activities. Further, in the event that Rezolute did not complete a financing that raised at least $ 20.0 million in aggregate gross proceeds (“Qualified Financing”) by March 31, 2019 (the “2019 Closing”), the Company would have received an additional number of shares of Rezolute’s common stock equal to $ 8.5 million divided by the weighted average of the closing bid and ask prices or the average closing prices of Rezolute’s common stock on the ten-day trading period prior to March 31, 2019. Finally, in the event that Rezolute was unable to complete a Qualified Financing by March 31, 2020, the Company would have been eligible to receive $ 15.0 million in cash in order for Rezolute to maintain the license. Under the common stock purchase agreement, Rezolute granted the Company the right and option to sell the greater of (i) 5,000,000 shares ( 100,000 post-split shares) of common stock or (ii) one third of the aggregate shares held by the Company upon failure by Rezolute to list its shares of its common stock on the Nasdaq Stock Market or a similar national exchange on or prior to December 31, 2018.During the three months ended March 31, 2018, the Company completed the delivery of the license and related materials, product data/filing, process and know-how to Rezolute. However, the Company determined that it was not probable that the Company would collect substantially all of the consideration to which it was entitled in exchange for the goods and services transferred to Rezolute. Therefore, the Company determined no contract existed as of March 31, 2018 and no revenue was recognized during the three months ended March 31, 2018 under the arrangement. 17
Rezolute completed the Interim Financing Closing and the Initial Closing financing activities, as defined in the common stock purchase agreement, during the first and second quarter of 2018, respectively. As a result, XOMA received 8,093,010 shares ( 161,860 post-split shares) of Rezolute’s common stock and cash of $ 0.5 million in April 2018. Under the license agreement, XOMA was also entitled to receive $ 0.3 million of reimbursable technology transfer expenses from Rezolute. The Company concluded that the payment associated with the Initial Closing represented substantially all consideration for the delivered license and technology to Rezolute. Therefore, the Company determined that a contract existed between Rezolute and XOMA under ASC 606 on April 3, 2018.The license agreement and common stock purchase agreement were accounted for as one arrangement because they were entered into at the same time in contemplation of each other. The Company concluded that there were multiple promised goods and services under the combined arrangement, including the license to RZ358, the transfer of RZ358 materials and product data/filing, and the transfer of process and know-how related to RZ358, which were determined to represent one combined performance obligation. The Company determined that the Additional Product Option was not an option with material right because there was no upfront consideration to the Company that would result to an incremental discount for the future opt in payments. Therefore, the Company concluded that the Additional Product Option was not a performance obligation. On June 1, 2019, Rezolute’s right to the Additional Product Option expired unexercised.On April 3, 2018, the Company determined that the transaction price under the arrangement was $ 1.8 million, which consisted of the 8,093,010 shares ( 161,860 post-split shares) of Rezolute’s common stock valued at $ 1.0 million, $ 0.5 million in cash, and reimbursable technology transfer expenses of $ 0.3 million. During the year ended December 31, 2018, the Company recognized the entire transaction price of $ 1.8 million as revenue upon completion of the delivery of the licenses and related materials, product data/filing, process and know-how. The change in fair value of Rezolute’s common stock after the contract inception date was due to the form of the consideration and therefore, not included in the transaction price pursuant to the accounting guidance. The Company accounts for the change in the fair value of its investment in Rezolute’s common stock in the other income (expense), net line item of the condensed consolidated statement of operations and comprehensive loss.The Company concluded that the development and regulatory milestone payments are solely dependent on Rezolute’s performance and achievement of the specified events. The Company determined that it is not probable that a significant cumulative revenue reversal will not occur in future periods for these future payments. Therefore, the development and regulatory milestones are fully constrained and excluded from the transaction price as of the inception of the arrangement. Any consideration related to commercial milestones (including royalties) will be recognized when the related sales occur as they were determined to relate predominantly to the licenses granted to Rezolute and therefore, have also been excluded from the transaction price. At the end of each reporting period, the Company will update its assessment of whether the estimate of variable consideration is constrained and update the estimated transaction price accordingly.Rezolute License Agreement - Second AmendmentOn January 7, 2019, the Company and Rezolute further amended the license agreement and common stock purchase agreement. The parties agreed to replace the issuance of common stock valued at $ 8.5 million to XOMA upon closing of a Qualified Financing with a requirement that Rezolute make five future cash payments to XOMA totaling $ 8.5 million through September 2020 (the “Future Cash Payments”). The amendment also provided for early payment of the Future Cash Payments (only until the $ 8.5 million was reached) by making cash payments to XOMA equal to 15 % of the net proceeds of each future financing following the closing of the Qualified Financing, with such payments to be credited against any remaining unpaid Future Cash Payments in reverse order of their future payment date. In addition, the license agreement amendment revised the amount Rezolute is required to expend on development of RZ358 and related licensed products, revised provisions with respect to Rezolute’s diligence efforts in conducting clinical studies and eliminated XOMA’s right to appoint a member to Rezolute’s board of directors.The common stock purchase agreement was amended to remove certain provisions related to the issuance of equity to XOMA in accordance with the new provisions regarding the Future Cash Payments in the license agreement. Lastly, the common stock purchase agreement was amended to provide the Company the right and option to sell up to 5,000,000 shares ( 100,000 post-split shares) of Rezolute’s common stock currently held by XOMA back to Rezolute upon failure by Rezolute to list its shares of its common stock on the Nasdaq Stock Market or a similar national exchange on or 18
prior to December 31, 2019. As of December 31, 2019, Rezolute failed to list its shares of common stock on the Nasdaq Stock Market or a similar exchange. Up to 2,500,000 shares ( 50,000 post-split shares) may be sold back to Rezolute during calendar year 2020. During the quarter ended December 31, 2020 Rezolute began trading on the Nasdaq Stock Market and the Company has not sold any of its shares.On January 30, 2019, Rezolute closed a preferred stock financing for gross proceeds of $ 25.0 million, which triggered the Qualified Financing event defined under the amended common stock purchase agreement resulting in cash consideration due to XOMA of $ 5.5 million. In addition, the Company received from Rezolute a reimbursable technology transfer expense of $ 0.3 million. The cash consideration and technology reimbursement were received in February 2019.As of March 31, 2019, Rezolute completed all financing activities, as defined in the license agreement and common stock purchase agreement, and the Company was eligible to receive $ 8.5 million in Future Cash Payments through September 2020 (in addition to any clinical, regulatory and annual net sales milestone payments and royalties). The Company concluded that the Future Cash Payments are dependent on Rezolute’s ability to raise additional capital through future financing activities. During 2019, the Company recognized all $ 8.5 million Future Cash Payments as revenue and received $ 5.9 million Future Cash Payment from Rezolute.Rezolute License Agreement - Third AmendmentOn March 31, 2020, the Company and Rezolute further amended the license agreement to extend the payment schedule for the remaining $ 2.6 million in Future Cash Payments. The amendment to the payment terms was in response to Rezolute’s need to preserve cash as a result of the COVID-19 pandemic and was agreed to by the Company. The extended payment schedule did not impact the total amount due, but instead, spread the $ 2.6 million into seven quarterly payments to be paid through September 30, 2021. The amended license agreement requires that in the event Rezolute completes a Qualified Financing at any time between March 31, 2020 and the date of the final payment, Rezolute shall pay all amounts outstanding within fifteen days following the closing of the Qualified Financing. ​In the first quarter of 2020, the Company received the scheduled $ 0.4 million Future Cash Payment from Rezolute. The Company evaluated Rezolute’s cash position as of March 31, 2020, including the estimated impact of the COVID-19 pandemic, and determined payments scheduled beyond September 30, 2020 were unlikely to be collected unless Rezolute was able to obtain additional funding, which had not occurred as of March 31, 2020. Therefore, for the three months ended March 31, 2020, the Company recorded $ 1.4 million in bad debt expense related to the Future Cash Payments. The Company received the scheduled $ 0.4 million and $ 0.4 million Future Cash Payments from Rezolute in the second and third quarters of 2020, respectively. The Company reassessed the collectability of the outstanding receivables and determined that the bad debt allowance of $ 1.4 million remained appropriate as of September 30, 2020, as the Company assessed that the financing was not probable as of the balance sheet date and as such the Company continued to have an incurred loss with respect to the collection of the remaining receivable. On October 9, 2020, Rezolute completed a private placement of its equity securities with gross proceeds of $ 41.0 million, which was considered a Qualified Financing event under the Third Amendment. The Qualified Financing resulted in acceleration of the remaining receivables of $ 1.4 million due from Rezolute, and the Company received the entire amount in October 2020. The Company recognized $ 1.4 million as a reversal of bad debt expense in the fourth quarter of 2020.During the quarter ended December 31, 2020, Rezolute completed a 1:50 reverse stock split of its common shares and started trading on the Nasdaq Stock Market. As a result, the Company’s number of shares of Rezolute common stock was reduced from 8,093,010 shares (pre-split shares) to 161,860 shares (post-split shares).As of March 31, 2021 and December 31, 2020, there were no contract assets or contract liabilities related to this arrangement. None of the costs to obtain or fulfill the contract were capitalized. No revenue was recognized for the three months ended March 31, 2021 and 2020.The Company reassessed the development and regulatory milestones and concluded that such variable consideration is fully constrained and excluded from the transaction price as of March 31, 2021 and December 31, 2020. 19
Janssen BiotechThe Company and Janssen Biotech, Inc. (“Janssen”) were parties to a license agreement which was terminated in 2017. In August 2019, the Company and Janssen entered into a new agreement pursuant to which the Company granted a non-exclusive license to Janssen to develop and commercialize certain drug candidates under the XOMA patents and know-how. Under the new agreement, Janssen made a one-time payment of $ 2.5 million to XOMA. Additionally, for each drug candidate, the Company is entitled to receive milestone payments of up to $ 3.0 million upon Janssen’s achievement of certain clinical development and regulatory approval events. Additional milestones may be due for drug candidates which are the subject of multiple clinical trials. Upon commercialization, the Company is eligible to receive 0.75 % royalty on net sales of each product. Janssen’s obligation to pay royalties with respect to a particular product and country will continue until the eighth-year and sixth-month anniversary of the first commercial sale of the product in such country. The new agreement will remain in effect unless terminated by mutual written agreement of the parties.The Company concluded that the new agreement should be accounted for separately from any prior arrangements with Janssen and that the license grant is the only performance obligation under the new agreement. The Company recognized the entire one-time payment of $ 2.5 million as revenue in the consolidated statement of operations and comprehensive loss for the year ended December 31, 2019 as it had completed its performance obligation.The Company concluded that the development and regulatory milestone payments are solely dependent on Janssen’s performance and achievement of specified events and thus it is not probable that a significant cumulative revenue reversal will not occur in future periods for these future payments. Therefore, the development and regulatory milestones are fully constrained and excluded from the transaction price until the respective milestone is achieved. Any consideration related to royalties will be recognized when the related sales occur as they were determined to relate predominantly to the license granted to Janssen and therefore, have also been excluded from the transaction price. At the end of each reporting period, the Company will update its assessment of whether an estimate of variable consideration is constrained and update the estimated transaction price accordingly.As of March 31, 2021 and December 31, 2020, there were no contract assets or contract liabilities related to this arrangement. None of the costs to obtain or fulfill the contract were capitalized. No revenue was recognized for the three months ended March 31, 2021 and 2020.NIAIDPrior to the sale of the Company’s biodefense business in 2017, the Company performed services under a $ 64.8 million multiple-year contract funded with federal funds from NIAID (Contract No. HHSN272200800028C), for development of anti-botulinum antibody product candidates. The contract work was being performed on a cost-plus fixed fee basis over a three-year period. The Company recognized revenue under the arrangement as the services were performed on a proportional performance basis. Consistent with the Company’s other contracts with the U.S. government, invoices were provisional until finalized. The Company operated under provisional rates from 2010 through 2014, subject to adjustment based on actual rates upon agreement with the government. In 2014, upon completion of NIAID’s review of hours and external expenses, XOMA agreed to exclude certain hours and external expenses resulting in a $ 0.4 million receivable and $ 0.8 million deferred revenue balances. As of December 31, 2017, the Company wrote off the $ 0.4 million receivable from NIAID as the likelihood of collection was remote. In October of 2019, NIH, which includes NIAID, notified the Company that it engaged KPMG to perform an audit of the Company’s incurred cost submissions for 2013, 2014 and 2015. The KPMG testing procedures were completed in December 2020. As a result, the Company recognized $ 1.4 million as estimated refund liabilities owed to NIH on the consolidated balance sheet as of December 31, 2020. The additional $ 0.6 million liability was recognized as a reduction of revenue from contracts with customers in the consolidated statement of operations and comprehensive income (loss) for the year ended December 31, 2020. The audit remains subject to further review by NIH as part of the contract close-out process, which includes finalization of rates for years 2010 through 2015, and the Company may incur a further liability as a result. The Company had $ 1.4 million as contingent liabilities on the condensed consolidated balance sheets as of March 31, 2021 and December 31, 2020, related to these matters. 20
Sale of Future Revenue StreamsOn December 21, 2016, the Company entered into two royalty interest sale agreements (together, the “Royalty Sale Agreements”) with HCRP. Under the first Royalty Sale Agreement, the Company sold its right to receive milestone payments and royalties on future sales of products subject to a License Agreement, dated August 18, 2005, between XOMA and Wyeth Pharmaceuticals (subsequently acquired by Pfizer, Inc. (“Pfizer”)) for an upfront cash payment of $ 6.5 million, plus potential additional payments totaling $ 4.0 million in the event three specified net sales milestones were met in 2017, 2018 and 2019. Based on actual sales, 2017, 2018, and 2019 sales milestones were not achieved. Under the second Royalty Sale Agreement entered into in December 2016, the Company sold its right to receive certain royalties under an Amended and Restated License Agreement dated October 27, 2006 between XOMA and Dyax Corp. for a cash payment of $ 11.5 million.The Company classified the proceeds received from HCRP as unearned revenue, to be recognized as revenue under units-of-revenue method over the life of the license agreements because of the Company’s limited continuing involvement in the Acquisition Agreements. Such limited continuing involvement is related to the Company’s undertaking to cooperate with HCRP in the event of litigation or a dispute related to the license agreements. Because the transaction was structured as a non-cancellable sale, the Company does not have significant continuing involvement in the generation of the cash flows due to HCRP and there are no guaranteed rates of return to HCRP, the Company recorded the total proceeds of $ 18.0 million as unearned revenue recognized under units-of-revenue method. The Company allocated the total proceeds between the two Royalty Sale Agreements based on the relative fair value of expected payments to be made to HCRP under the license agreements. The unearned revenue is being recognized as revenue over the life of the underlying license agreements under the "units-of-revenue" method. Under this method, amortization for a reporting period is calculated by computing a ratio of the allocated proceeds received from HCRP to the payments expected to be made by the licensees to HCRP over the term of the Acquisition Agreements, and then applying that ratio to the period’s cash payment. During the third quarter of 2018, the Shire product underlying the Dyax Corp. license agreement was approved, and the Company began recognizing revenue under the units-of-revenue method due to sales of the approved product.The Company recognized $ 0.4 million and $ 0.3 million as revenue under units-of-revenue method under these arrangements during the three months ended March 31, 2021 and 2020, respectively. As of March 31, 2021, the Company classified $ 1.5 million and $ 13.1 million as current and non-current unearned revenue recognized under units-of-revenue method, respectively. As of December 31, 2020, the current and non-current portion of the remaining unearned revenue recognized under units-of-revenue method was $ 1.5 million and $ 13.5 million, respectively. 5. Royalty Purchase AgreementsRoyalty Purchase Agreement with Agenus, Inc.On September 20, 2018, the Company entered into a royalty purchase agreement (the “Agenus Royalty Purchase Agreement”) with Agenus, Inc., and certain affiliates (collectively, “Agenus”). Under the Agenus Royalty Purchase Agreement, the Company purchased from Agenus the right to receive 33 % of the future royalties on six Incyte Europe S.a.r.l. (“Incyte”) immuno-oncology assets, currently in development, due to Agenus from Incyte (net of certain royalties payable by Agenus to a third party) and 10 % of all future developmental, regulatory and commercial milestones related to these assets. However, the Company did not have a right to the expected near-term milestone associated with the entry of INCAGN2390 (anti-TIM-3) into its Phase 1 clinical trial. The future royalties due to Agenus from Incyte are based on low single to mid-teen digit percentage of applicable net sales.In addition, the Company purchased from Agenus the right to receive 33 % of the future royalties on MK-4830, an immuno-oncology product currently in clinical development, due to Agenus from Merck Sharp & Dohme Corp. (“Merck”) and 10 % of all future developmental, regulatory and commercial milestones related to this asset. The future royalties due to Agenus from Merck are based on low single-digit percentage of applicable net sales. Pursuant to the Agenus Royalty Purchase Agreement, the Company’s share in future potential development, regulatory and commercial 21
milestones is up to $ 59.5 million. There is no limit on the amount of future royalties on sales that the Company may receive under the agreements.Under the terms of the Agenus Royalty Purchase Agreement, the Company paid Agenus $ 15.0 million. The Company financed $ 7.5 million of the purchase price with a term loan under its Loan and Security Agreement with Silicon Valley Bank (“SVB”) (Note 8).At the inception of the agreement, the Company recorded $ 15.0 million as long-term royalty receivables in the condensed consolidated balance sheets. In November 2020, MK-4830 advanced into Phase 2 development and Agenus earned a $ 10.0 million clinical development milestone under its license agreement with Merck, of which the Company earned $ 1.0 million. In accordance with the cost recovery method, the $ 1.0 million milestone received was recorded as a direct reduction of the recorded long-term royalty receivable balance. The Company continues to assess that no further payments are probable to be received under this agreement in the near term. Under the cost recovery method, the Company does not expect to recognize any income related to milestones and royalties received until the investment has been fully collected. The Company performed its quarterly impairment assessment and no impairment indicators were identified. Accordingly, no impairment was recorded as of March 31, 2021.Royalty Purchase Agreement with Bioasis Technologies, Inc.On February 25, 2019, the Company entered into a royalty purchase agreement (the “Bioasis Royalty Purchase Agreement”) with Bioasis Technologies, Inc. and certain affiliates (collectively “Bioasis”). Under the Bioasis Royalty Purchase Agreement, the Company purchased potential future milestone and royalty rights from Bioasis for product candidates that are being developed pursuant to a license agreement between Bioasis and Prothena Biosciences Limited. In addition, the Company was granted options to purchase a 1 % royalty right on the next two license agreements entered into between Bioasis and third-party licensees subject to certain payments and conditions as well as a right of first negotiation on subsequent Bioasis license agreements with third parties. Upon exercise of the option related to the second license agreement executed by Bioasis, the Company may be obligated to pay up to $ 0.3 million per licensed product. Upon exercise of the option related to the third license agreement executed by Bioasis, the Company may be obligated to pay up to $ 0.4 million per licensed product. Under the terms of the Bioasis Royalty Purchase Agreement, the Company paid $ 0.3 million and will make contingent future cash payments of up to $ 0.2 million to Bioasis as the licensed product candidates reach certain development milestones (the “Bioasis Contingent Consideration”).At the inception of the agreement, the Company recorded $ 0.4 million as long-term royalty receivables in its condensed consolidated balance sheet, including the estimated fair value of the Bioasis Contingent Consideration of $ 0.1 million. Future changes in the estimated fair value of the contingent consideration will be recognized in the other income (expense), net line item of the condensed consolidated statement of operations and comprehensive loss. As of March 31, 2021, there was no change in the fair value of the contingent consideration from its initial value and no amounts were paid during the three months ended March 31, 2021. The Company continues to assess that no payments are probable to be received under this agreement in the near term. Under the cost recovery method, the Company does not expect to recognize any income related to milestones and royalties received until the investment has been fully collected. The Company performed its quarterly impairment assessment and no impairment indicators were identified. Accordingly, no impairment was recorded as of March 31, 2021. 22
On November 2, 2020, the Company entered into another royalty purchase agreement (the “Second Bioasis Royalty Purchase Agreement”) with Bioasis. Under the Second Bioasis Royalty Purchase Agreement, the Company purchased potential future milestone and other payments, and royalty rights from Bioasis for product candidates that are being developed pursuant to a research collaboration and license agreement between Bioasis and Chiesi Farmaceutici S.p.A. (“Chiesi”). The Company paid Bioasis $ 1.2 million upon closing of the Second Bioasis Royalty Purchase Agreement for the purchased rights.At the inception of the Second Bioasis Royalty Purchase Agreement, the Company recorded $ 1.2 million as long-term royalty receivables in its consolidated balance sheet. The Company continues to assess that no payments are probable to be received under the Second Bioasis Royalty Purchase Agreement in the near term. Under the cost recovery method, the Company does not expect to recognize any income related to milestones and other payments until the investment has been fully collected. The Company performed its quarterly impairment assessment and no impairment indicators were identified. Accordingly, no impairment was recorded as of March 31, 2021. ​Royalty Purchase Agreement with Aronora, Inc.On April 7, 2019, the Company entered into a royalty purchase agreement (the “Aronora Royalty Purchase Agreement”) with Aronora, Inc. (“Aronora”), which closed on June 26, 2019. Under the Aronora Royalty Purchase Agreement, the Company purchased from Aronora the right to receive future royalties and a portion of upfront, milestone, and option payments (the “Non-Royalties”) related to five anti-thrombotic hematology drug candidates. Three candidates were subject to Aronora’s collaboration with Bayer Pharma AG (“Bayer”) (the “Bayer Products”), including one which was subject to an exclusive license option by Bayer. The Company will receive 100 % of future royalties and 10 % of future Non-Royalties from these Bayer Products. The other two candidates are unpartnered (the “non-Bayer Products”) for which the Company will receive low single-digit percentage of net sales and 10 % of Non-Royalties. The future payment percentage for Non-Royalties will be reduced from 10 % to 5 % upon the Company’s receipt of two times the total cumulative amount of consideration paid by the Company to Aronora. In July 2020, Bayer elected to not exercise its option on the third Bayer Product and that product is now subject to the same economics as the non-Bayer Products.Under the terms of the Aronora Royalty Purchase Agreement, the Company paid Aronora a $ 6.0 million upfront payment at the close of the transaction. The Company financed $ 3.0 million of the upfront payment with a term loan under its Loan and Security Agreement with SVB (Note 8). The Company was required to make a contingent future cash payment of $ 1.0 million for each of the three Bayer Products that were active on September 1, 2019 (up to a total of $ 3.0 million, the “Aronora Contingent Consideration”). Pursuant to the Aronora Royalty Purchase Agreement, if the Company receives $ 250.0 million in cumulative royalties on net sales per product, the Company will be required to pay associated tiered milestone payments to Aronora in an aggregate amount of up to $ 85.0 million per product (the “Royalty Milestones”). The Royalty Milestones are paid based upon various royalty tiers prior to reaching $ 250.0 million in cumulative royalties on net sales per product. Royalties per product in excess of $ 250.0 million are retained by the Company.At the inception of the agreement, the Company recorded $ 9.0 million as long-term royalty receivables in its condensed consolidated balance sheet, including the estimated fair value of the Aronora Contingent Consideration of $ 3.0 million. In September 2019, the Company paid the $ 3.0 million contingent consideration to Aronora. As the Company receives royalties from Aronora for a product, the Company will recognize the liability for future Royalty Milestones for such product when probable and estimable. The Company continues to assess that no payments are probable to be received under this agreement in the near term. Under the cost recovery method, the Company does not expect to recognize any income related to milestones and royalties received until the investment has been fully collected. The Company performed its quarterly impairment assessment and no impairment indicators were identified. Accordingly, no impairment was recorded as of March 31, 2021.Royalty Purchase Agreement with Palobiofarma, S.L.On September 26, 2019, the Company entered into a royalty purchase agreement (the “Palo Royalty Purchase Agreement”) with Palobiofarma, S.L. (“Palo”), a company organized and existing under the laws of Spain. Pursuant to the Palo Royalty Purchase Agreement, the Company acquired the rights to potential royalty payments in low single-digit percentages of aggregate Net Sales (as defined in the Palo Royalty Purchase Agreement) associated with six drug 23
| ​ | ​ | ​ | ​ |
| Balance at December 31, 2020 | $ | 34,575 |
| Acquisition of royalty rights: | ​ | ​ | ​ |
| Viracta | ​ | 13,500 |
| Balance at March 31, 2021 | ​ | $ | 48,075 |

| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Fair Value Measurements at March 31, 2021 Using |
| ​ | ​ | Quoted Prices in | ​ | Significant Other | ​ | Significant | ​ | ​ | ​ |
| ​ | ​ | Active Markets for | ​ | Observable | ​ | Unobservable | ​ | ​ | ​ |
| ​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs | ​ | ​ | ​ |
| ​ | (Level 1) | (Level 2) | (Level 3) | Total |
| Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Equity securities | ​ | $ | — | ​ | $ | — | ​ | $ | 1,021 | ​ | $ | 1,021 |
| Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Contingent consideration | ​ | $ | — | ​ | $ | — | ​ | $ | 75 | ​ | $ | 75 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Fair Value Measurements at December 31, 2020 Using |
| ​ | ​ | Quoted Prices in | ​ | Significant Other | ​ | Significant | ​ | ​ | ​ |
| ​ | ​ | Active Markets for | ​ | Observable | ​ | Unobservable | ​ | ​ | ​ |
| ​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs | ​ | ​ | ​ |
| ​ | (Level 1) | (Level 2) | (Level 3) | Total |
| Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Equity securities | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | 1,693 | ​ | $ | 1,693 |
| Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Contingent consideration | ​ | $ | — | ​ | $ | — | ​ | $ | 75 | ​ | $ | 75 |
| ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended |
| ​ | ​ | March 31, |
| Balance at December 31, 2020 | ​ | $ | 1,693 |
| Change in fair value | ​ | ( 672 ) |
| Balance at March 31, 2021 | ​ | $ | 1,021 |

| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | March 31, | ​ | December 31, | ​ |
| ​ | ​ | 2021 | ​ | 2020 |
| Closing common stock price (1) | ​ | $ | 7.06 | ​ | $ | 11.99 | ​ |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Tranche 1: | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Discount for lack of marketability | ​ | 10.5 | % | ​ | 12 | % |
| Estimated time to liquidity of shares | ​ | 0.25 year | ​ | ​ | 0.25 year | ​ |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Tranche 2: | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Discount for lack of marketability | ​ | ​ | 11 | % | ​ | 14 | % |
| Estimated time to liquidity of shares | ​ | ​ | 0.53 year | ​ | ​ | 0.67 years | ​ |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | March 31, 2021 | ​ | December 31, 2020 |
| ​ | Carrying Amount | Fair Value | Carrying Amount | Fair Value |
| SVB Loans | ​ | $ | 9,762 | ​ | $ | 9,752 | ​ | $ | 11,759 | ​ | $ | 11,747 |
| Novartis note | ​ | ​ | 9,093 | ​ | ​ | 9,092 | ​ | ​ | 9,093 | ​ | ​ | 9,055 |
| Total | ​ | $ | 18,855 | ​ | $ | 18,844 | ​ | $ | 20,852 | ​ | $ | 20,802 |

| ​ | ​ | ​ | ​ |
| ​ | ​ | Operating |
| Undiscounted lease payments | Leases |
| 2021 (excluding three months ended March 31, 2021) | ​ | $ | 148 |
| 2022 | ​ | 202 |
| 2023 | ​ | 34 |
| Thereafter | ​ | — |
| Total undiscounted lease payments | ​ | 384 |
| Present value adjustment | ​ | ( 19 ) |
| Total net lease liabilities | $ | 365 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | Three Months Ended March 31, |
| ​ | 2021 | 2020 |
| Lease costs: | ​ | ​ | ​ | ​ | ​ | ​ |
| Operating lease cost | ​ | $ | 44 | $ | 44 |
| Variable lease cost (1) | ​ | ​ | 3 | ​ | 2 |
| Total lease costs | ​ | $ | 47 | ​ | $ | 46 |
| (1) | Under the terms of the lease agreements, the Company is also responsible for certain variable lease payments that are not included in the measurement of the lease liability. Variable lease payments include non-lease components such as common area maintenance fees. |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | Three Months Ended March 31, |
| ​ | 2021 | ​ | 2020 |
| Cash paid for amounts included in the measurement of lease liabilities | ​ | ​ | ​ | ​ |
| Operating cash flows under operating leases | ​ | $ | 49 | ​ | $ | 46 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | March 31, | ​ | December 31, |
| ​ | 2021 | ​ | 2020 |
| Weighted-average remaining lease term | ​ | ​ | ​ | ​ | ​ | ​ |
| Operating leases | ​ | 1.92 years | ​ | ​ | 2.17 years | ​ |
| Weighted-average discount rate | ​ | ​ | ​ | ​ | ​ | ​ |
| Operating leases | ​ | 5.51 | % | ​ | 5.51 | % |

8. Long-Term Debt and Other FinancingsSilicon Valley Bank Loan AgreementOn May 7, 2018 (the “Effective Date”), the Company executed a Loan and Security Agreement (the “Loan Agreement”) with SVB. Under the Loan Agreement, upon the Company’s request, SVB made advances (each, a “Term Loan Advance”) available to the Company up to $ 20.0 million (the “Term Loan”). The Company was allowed to borrow advances under the Term Loan from the Effective Date until the earlier of March 31, 2019 or an event of default (the “Draw Period”). In the event of a default related to the Note Agreement with Novartis, SVB’s obligation to make any credit extensions to the Company under the Loan Agreement would immediately terminate. The interest rate is calculated at a rate equal to the greater of (i) 4.75 %, or (ii) 0.25 % plus the prime rate as reported from time to time in The Wall Street Journal.Payments under the Loan Agreement were interest only until the first anniversary of the funding date of each Term Loan Advance. The interest-only period is followed by equal monthly payments of principal and interest over 24 months . Each Term Loan Advance will mature at the earlier of (i) the 23 months following the applicable term loan amortization date for each such Term Loan Advance (ii) March 1, 2023, or (iii) 30 days prior to the earliest maturity of any portion of the Company’s loan with Novartis (the “Loan Maturity Date”). After repayment, no Term Loan Advance (or any portion thereof) may be reborrowed.The entire principal balance, including a final payment fee equal to 8.5 % of the principal, will be due and payable on the Loan Maturity Date. If the Company prepays the Term Loan Advance prior to the Loan Maturity Date, it will pay SVB a prepayment premium, based on a prepayment fee equal to 2.00 % of the amount prepaid, if the prepayment occurs after the first anniversary of the Effective Date but prior to the second anniversary of the Effective Date, and 1.00 % of the amount prepaid if the prepayment occurs after the second anniversary of the Effective Date. In the event of a default, a default interest rate of an additional 4 % may be applied to the outstanding payments due to SVB, and SVB may declare all outstanding obligations immediately due and payable and take such other actions as set forth in the Loan Agreement.The Company’s obligations under the Loan Agreement are secured by a security interest in substantially all of its assets, other than its intellectual property. The Loan Agreement includes customary affirmative and restrictive covenants, but does not include any financial maintenance covenants, and also includes standard events of default, including payment defaults.In connection with the Loan Agreement, the Company issued a warrant to SVB which is exercisable in whole or in part for up to an aggregate of 6,332 shares of common stock with an exercise price of $ 23.69 per share (the “Warrant”). The Warrant may be exercised on a cashless basis and is exercisable within 10 years from the date of issuance or upon the consummation of certain acquisitions of the Company. The fair value of the Warrant issued to SVB was determined using the Black-Scholes Model and was estimated to be $ 0.1 million. In addition, the Company incurred debt issuance costs of $ 0.2 million in connection with the Loan Agreement.On March 4, 2019, the Loan Agreement was amended to extend the Draw Period from March 31, 2019 to March 31, 2020. In connection with the amendment, the Company issued a second warrant to SVB which is exercisable in whole or in part for up to an aggregate of 4,845 shares of common stock with an exercise price of $ 14.71 per share. The fair value of the second warrant issued to SVB was determined using the Black-Scholes Model and was estimated to be $ 0.1 million. The Draw Period has not been extended further.As of March 31, 2021, both warrants are outstanding. In addition, both warrants may be exercised on a cashless basis and are exercisable within 10 years from the date of issuance or upon the consummation of certain acquisitions of the Company.In September 2018, the Company borrowed advances of $ 7.5 million under the Loan Agreement in connection with the Agenus Royalty Purchase Agreement (Note 5). The Company recorded a discount of $ 0.3 million against the debt, which is being amortized to interest expense over the term of the Term Loan Advance using the effective interest method. 28
During the year ended December 31, 2019, the Company borrowed advances totaling $ 9.5 million under the Loan Agreement in connection with the Aronora Royalty Purchase Agreement, Palo Royalty Purchase Agreement and payment of the Aronora Contingent Consideration (Note 5). The Company recorded a discount of $ 45,000 against the debt, which is being amortized to interest expense over the term of the Term Loan Advance using the effective interest method.The Company recorded $ 0.1 million and $ 0.2 million of non-cash interest expense resulting from the amortization of the discount and accretion of the final payment for the three months ended March 31, 2021 and 2020, respectively. As of March 31, 2021, the carrying value of the debt under the Loan Agreement was $ 9.8 million. Of this amount, $ 7.2 million is classified as current portion of long-term debt and $ 2.6 million is classified as long-term debt on the condensed consolidated balance sheet. As of December 31, 2020, the carrying value of the debt under the Loan Agreement was $ 11.8 million. Of this amount, $ 8.1 million was classified as current portion of long-term debt and $ 3.7 million was classified as long-term debt on the condensed consolidated balance sheet.Novartis NoteIn May 2005, the Company executed a secured note agreement (the “Note Agreement”) with Novartis, which was due and payable in full in June 2015. Under the Note Agreement, the Company borrowed semi-annually to fund up to 75 % of the Company’s research and development and commercialization costs under its collaboration arrangement with Novartis, not to exceed $ 50.0 million in aggregate principal amount. Interest on the principal amount of the loan accrues at six-month LIBOR plus 2 %, which was equal to 2.26 % at March 31, 2021, and the interest rate resets in June and December annually. Accrued interest is payable semi-annually in June and December of each year or, at the Company’s election, the semi-annual interest payments may be added to the outstanding principal amount, in lieu of a cash payment, as long as the aggregate principal amount does not exceed $ 50.0 million. The Company has made this election for all interest payments. Loans under the Note Agreement are secured by the Company’s interest in its collaboration with Novartis, including any payments owed to it thereunder.On September 30, 2015, concurrent with the execution of a license agreement with Novartis International as discussed in Note 4, XOMA and NIBR, who assumed the rights to the note from Novartis Vaccines Diagnostics, Inc. executed an amendment to the Note Agreement (the “Secured Note Amendment”) under which the parties extended the maturity date of the note from September 30, 2015 to September 30, 2020, and eliminated the mandatory prepayment previously required to be made with certain proceeds of pre-tax profits and royalties. In addition, upon achievement of a specified development and regulatory milestone, the then-outstanding principal amount of the note was to be reduced by $ 7.3 million rather than the Company receiving such amount as a cash payment.On September 22, 2017, in connection with the Gevokizumab License Agreement with Novartis, the Company and NIBR executed an amendment to the Secured Note Amendment under which the parties further extended the maturity date of the Secured Note Amendment from September 30, 2020 to September 30, 2022.On October 21, 2020, the first patient was dosed in Novartis International’s NIS793 Phase 2 clinical trial and the Company earned a $ 25.0 million milestone pursuant to the Anti-TGFβ Antibody License Agreement, of which $ 17.7 million was received in cash and $ 7.3 million was recognized as a reduction to the debt obligation to Novartis.As of March 31, 2021 and December 31, 2020, the outstanding principal balance under the Secured Note Amendment was $ 9.1 million and was included in long-term debt in the accompanying condensed consolidated balance sheet. 29
| ​ | ​ | ​ | ​ |
| ​ | ​ | ​ | March 31, |
| ​ | ​ | ​ | 2021 |
| 2021 (excluding three months ended March 31, 2021) | ​ | $ | 6,290 |
| 2022 | ​ | ​ | 13,523 |
| Thereafter | ​ | ​ | — |
| Total payments | ​ | ​ | 19,813 |
| Less: interest, final payment fees, discount and issuance costs | ​ | ​ | ( 958 ) |
| Total payments, net of interest, final payment fees, discount and issuance costs | ​ | ​ | 18,855 |
| Less: current portion of long-term debt | ​ | ​ | ( 7,201 ) |
| Long-term debt | $ | 11,654 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended March 31, |
| ​ | 2021 | 2020 |
| SVB loan | ​ | $ | 238 | ​ | $ | 383 |
| Novartis note | ​ | 51 | ​ | 158 |
| Other | ​ | — | ​ | 1 |
| Total interest expense | ​ | $ | 289 | ​ | $ | 542 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | ​ | Exercise Price | March 31, | December 31, |
| Issuance Date | ​ | Expiration Date | ​ | Balance Sheet Classification | ​ | per Share | ​ | 2021 | ​ | 2020 |
| February 2016 | February 2021 | Stockholders’ equity | ​ | $ | 15.40 | — | 8,249 |
| May 2018 | May 2028 | Stockholders’ equity | ​ | $ | 23.69 | 6,332 | 6,332 |
| March 2019 | ​ | March 2029 | ​ | Stockholders’ equity | ​ | $ | 14.71 | ​ | 4,845 | ​ | 4,845 |
| ​ | ​ | 11,177 | 19,426 |

| ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended March 31, |
| ​ | 2021 | 2020 |
| Dividend yield | 0 | % | 0 | % |
| Expected volatility | 98 | % | 100 | % |
| Risk-free interest rate | 0.71 | % | 0.90 | % |
| Expected term | 5.61 years | ​ | 5.57 years | ​ |

| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | ​ | ​ | Weighted | Weighted | Aggregate |
| ​ | ​ | ​ | ​ | Average | ​ | Average | ​ | Intrinsic |
| ​ | ​ | ​ | ​ | Exercise | ​ | Contractual | ​ | Value |
| ​ | ​ | Number of | ​ | Price | ​ | Term | ​ | (in |
| ​ | ​ | shares | ​ | Per Share | ​ | (in years) | ​ | thousands) |
| Outstanding at January 1, 2021 | ​ | 1,827,906 | ​ | $ | 20.66 | 6.31 | $ | 51,401 |
| Granted | 142,823 | ​ | 39.02 | ​ |
| Exercised | ( 24,193 ) | ​ | 16.08 | ​ |
| Forfeited, expired or cancelled | ​ | ( 53,449 ) | ​ | 70.43 | ​ |
| Outstanding at March 31, 2021 | ​ | 1,893,087 | ​ | $ | 20.70 | 6.23 | ​ | $ | 45,176 |
| Exercisable at March 31, 2021 | ​ | 1,527,042 | ​ | $ | 19.13 | 5.56 | ​ | $ | 40,186 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended March 31, |
| ​ | 2021 | 2020 |
| Research and development | ​ | $ | — | ​ | $ | — |
| General and administrative | ​ | 2,898 | ​ | 1,788 |
| Total stock-based compensation expense | ​ | $ | 2,898 | ​ | $ | 1,788 |

Conversion— Each share of Series X and Series Y is convertible into 1,000 shares of registered common stock based on a conversion price of $ 4.03 per share and $ 13.00 per share of common stock, respectively.Voting Rights— Convertible preferred stock will generally have no voting rights, except as required by law and except that the consent of the holders of the outstanding convertible preferred stock will be required to amend the terms and to issue additional shares of the preferred stock.Classification— The Company evaluated the convertible preferred stock for liability or equity classification under the applicable accounting guidance and determined that equity treatment was appropriate because the convertible preferred stock did not meet the definition of the liability instruments defined thereunder for convertible instruments. Specifically, the convertible preferred shares are not mandatorily redeemable and do not embody an obligation to buy back the shares outside of the Company’s control in a manner that could require the transfer of assets. Additionally, the Company determined that the convertible preferred stock would be recorded as permanent equity, not temporary equity, given that they are not redeemable for cash or other assets (i) on a fixed or determinable date, (ii) at the option of the holder, and (iii) upon the occurrence of an event that is not solely within control of the Company. The Company has also evaluated the embedded conversion and contingent redemption features within the convertible preferred stock in accordance with the accounting guidance for derivatives and determined that bifurcation is not required for any embedded feature.Beneficial Conversion Feature— The fair value of the common stock into which the Series X convertible preferred stock is convertible exceeded the allocated purchase price of the Series X convertible preferred stock by $ 5.6 million on the date of issuance, as such the Company recorded a deemed dividend. The Company recognized the resulting beneficial conversion feature as a deemed dividend equal to the number of shares of Series X convertible preferred stock sold on February 16, 2017 multiplied by the difference between the fair value of the common stock and the Series X convertible preferred stock effective conversion price per share on that date. The dividend was reflected as a one-time, non-cash, deemed dividend to the holders of Series X convertible preferred stock on the date of issuance, which is the date the stock first became convertible. There was no beneficial conversion feature associated with the issuance of Series Y convertible preferred stock.Series A Preferred Stock On December 15, 2020, the Company sold 984,000 shares of its 8.625 % Series A cumulative, perpetual preferred stock at the price of $ 25.00 per share, through a public offering for aggregate gross proceeds of $ 24.6 million. Total offering costs of $ 2.0 million were offset against the proceeds from the sale of Series A Preferred Stock, for total net proceeds of $ 22.6 million. ​Mr. Matthew Perry, a member of the Company’s Board of Directors and President of BVF, purchased 200,000 shares of Series A Preferred Stock in the public offering at the public offering price of $ 25.00 per share for an aggregate amount of $ 5.0 million. The spouse of James Neal, the Company’s Chief Executive Officer and a director, purchased 8,000 shares of the Series A Preferred Stock in the public offering at the public offering price of $ 25.00 per share for an aggregate amount of $ 0.2 million. On March 17, 2021, the Company’s Board of Directors declared a cash dividend of $ 0.71875 per share payable to holders of Series A Preferred Stock, which the Company paid on April 15, 2021. As of March 31, 2021, the Company held restricted cash of $ 2.1 million in a segregated account that may only be used to pay dividends on the Series A Preferred Stock. The Series A Preferred Stock has the following characteristics, which are set forth in the Certificate of Designation of Preferences, Rights and Limitations filed with the Delaware Secretary of State.​ 33
Dividends— Holders of the Series A Preferred Stock shall be entitled to receive, when, and if authorized by the Board of Directors and declared by the Corporation, cumulative cash dividends at the rate of 8.625 % per annum of the $ 25.00 liquidation preference per share of the Series A Preferred Stock. Such dividends will accumulate and be cumulative from, and including, the date of original issue of the Series A Preferred Stock. Dividends will be payable in arrears on or about the 15th day of January, April, July and October of each year beginning on or about April 15, 2021. The amount of any dividend payable on the Series A Preferred Stock for any period greater or less than a full Dividend Period shall be prorated and computed on the basis of a 360 -day year consisting of twelve 30 -day months.Liquidation Rights— In the event of the Company’s liquidation, dissolution or winding up, holders of Series A Preferred Stock will rank senior to all classes or series of common stock as to dividend rights and rights upon liquidation, dissolution or winding-up and on parity with respect to the distribution of assets with the Company’s Series X Preferred Stock. The Series A Preferred Stock have a par value of $ 0.05 per share and a liquidation preference of $ 25.00 per share plus any accrued and unpaid dividends.Redemption and Special Optional Redemption— The Company, at its option, may redeem the Series A Preferred Stock, in whole or in part, at any time for a cash redemption price, plus any accrued and unpaid dividends, as follows: (i) $ 26.00 per share between December 15, 2021 and December 15, 2022, (ii) $ 25.75 per share between December 15, 2022 and December 15, 2023, (iii) $ 25.50 per share between December 15, 2023 and December 15, 2024 (iv) $ 25.25 per share between December 15, 2024 and December 15, 2025 and $ 25.00 per share on or after December 15, 2025. The Company also has a special optional redemption option whereby, upon the occurrence of a delisting event or change of control event, the Company may redeem outstanding Series A Preferred Stock at an amount of $ 25.00 per share. Conversion— The shares of Series A Preferred Stock are not convertible into or exchangeable for any other property or securities of the Company except upon the occurrence of a delisting event or change in control event and the Company has not, on or before the date of such an event, provided the required notice of its election to redeem the Series A Preferred Stock pursuant to its redemption right or special optional redemption right. In this case, the holder of shares of Series A Preferred Stock can convert some or all of their Series A Preferred Stock into a number of shares of common stock per share equal to the lesser of (A) (i) the sum of the $ 25.00 liquidation preference per share of Series A Preferred Stock to be converted plus (y) the amount of any accrued and unpaid dividends to, but not including, the event date, as applicable by (ii) the common stock price and (B) 1.46071 (the “Share Cap”). The common stock price to be used in the latter noted calculation for a delisting event will be the average of the closing price per share of the Company’s common stock on the 10 consecutive trading days immediately preceding, but not including, the effective date of the delisting event. The common stock price used in the event of a change in control event will, alternatively, be based on market price according to the definition in the Certificate of Designation. Voting Rights— Holders of the Series A Preferred Stock generally will have no voting rights, but will have limited voting rights if the issuer fails to pay dividends for six or more quarters (whether or not declared or consecutive) and in certain other events. Classification—The Company evaluated the convertible preferred stock for liability or equity classification under the applicable accounting guidance and determined that treatment as equity was appropriate. ​BVF OwnershipIn February 2020, BVF elected to increase the beneficial ownership limitation of the Series Y preferred stock to 50 %, which became effective on April 11, 2020. On April 15, 2020, BVF converted all of its shares of Series Y preferred stock into common stock. As of March 31, 2021, BVF owned approximately 31.4 % of the Company’s total outstanding shares of common stock, and if all the Series X convertible preferred shares were converted, BVF would own 52.5 % of the Company’s total outstanding shares of common stock. The Company’s Series A Preferred Stock becomes convertible upon the occurrence of specific events and as of March 31, 2021 the contingency was not met. Due to its significant equity ownership, BVF is considered a related party of the Company. 34
2018 ATM AgreementOn December 18, 2018, the Company entered into an At The Market Issuance Sales Agreement (the “2018 ATM Agreement”) with H.C. Wainwright & Co., LLC (“HCW”), under which the Company may offer and sell from time to time at its sole discretion shares of its common stock through HCW as its sales agent, in an aggregate amount not to exceed $ 30.0 million. HCW may sell the shares by any method permitted by law deemed to be an “at the market” offering as defined in Rule 415 of the Securities Act, and will use its commercially reasonable efforts consistent with its normal trading and sales practices to sell the shares up to the amount specified. The Company will pay HCW a commission of up to 3 % of the gross proceeds of any shares of common stock sold under the 2018 ATM Agreement. On March 10, 2021, the Company amended the 2018 ATM Agreement with HCW to increase the aggregate amount of shares of its common stock that it could sell through HCW as its sales agent to $ 50.0 million. No shares have been sold under the 2018 ATM Agreement since the agreement was executed. 13. Income TaxesThe Company recorded an income tax benefit of $ 1.5 million for the three months ended March 31, 2020 and no income tax provision for the three months ended March 31, 2021. The Company continues to maintain a full valuation allowance against its remaining net deferred tax assets. During the three months ended March 31, 2021 the Company received $ 1.5 million in cash for its income tax receivable. The Company has a total of $ 5.9 million of gross unrecognized tax benefits, none of which would affect the effective tax rate upon realization. The Company currently has a full valuation allowance against its U.S. net deferred tax assets, which would impact the timing of the effective tax rate benefit should any of these uncertain tax positions be favorably settled in the future.The Company does not expect its unrecognized tax benefits to change significantly over the next twelve months. The Company will recognize interest and penalties accrued on any unrecognized tax benefits as a component of income tax expense. Through March 31, 2021, the Company has not accrued interest or penalties related to uncertain tax positions. 14. Subsequent Events Public Offering of Depositary Shares ​On April 9, 2021, the Company closed a public offering of 1,600,000 depositary shares, each representing a 1/1000th fractional interest in a share of the Company’s Series B Preferred Stock at the price of $ 25.00 per depositary share. Total gross proceeds from the offering were $ 40.0 million. Total offering costs of approximately $ 2.8 million were offset against the proceeds from the sale of depositary shares, for net proceeds of approximately $ 37.2 million. The spouse of James Neal, the Chief Executive Officer and a director, purchased 8,000 shares of the depositary shares in the public offering at the public offering price of $ 25.00 per share for an aggregate amount of $ 200,000 . Thomas Burns, the Senior Vice President of Finance and Chief Financial Officer, purchased 1,000 shares of the depositary shares in the public offering at the public offering price of $ 25.00 per share for an aggregate amount of $ 25,000 .​ ​35
ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
Forward Looking Statements
This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and the Private Securities Litigation Reform Act of 1995, which are subject to the “safe harbor” created by those sections. Forward-looking statements are based on our management’s beliefs and assumptions and on information currently available to them. In some cases you can identify forward-looking statements by words such as “may,” “will,” “should,” “could,” “would,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “projects,” “predicts,” “potential,” “intend” and similar expressions intended to identify forward-looking statements. Examples of these statements include, but are not limited to, statements regarding: our future operating expenses, our future losses, the success of our strategy as a royalty aggregator, extent to which our issued and pending patents may protect our products and technology, the potential of our existing product candidates to lead to the development of commercial products, our ability to receive potential milestone or royalty payments under license and collaboration agreements and the timing of receipt of those payments, and the impact of the recent and evolving COVID-19 pandemic. These statements are based on assumptions that may not prove accurate. Actual results could differ materially from those anticipated due to certain risks inherent in the biotechnology industry and for our licensees engaged in the development of new products in a regulated market. Among other things: our product candidates subject to our out-license agreements are still being developed, and our licensees’ may require substantial funds to continue development which may not be available; we may not be successful in entering into out-license agreements for our product candidates; if our therapeutic product candidates do not receive regulatory approval, our third-party licensees will not be able to manufacture and market them; products or technologies of other companies may render some or all of our product candidates noncompetitive or obsolete; we do not know whether there will be, or will continue to be, a viable market for the products in which we have an ownership or royalty interest; even once approved, a product may be subject to additional testing or significant marketing restrictions, its approval may be withdrawn or it may be voluntarily taken off the market; we and our licensees are subject to various state and federal healthcare related laws and regulations that may impact the commercialization of our product candidates and could subject us to significant fines and penalties; and certain of our technologies are in-licensed from third parties, so our capabilities using them are restricted and subject to additional risks. These and other risks, including those related to current economic and financial market conditions, are contained principally in Part II, Item 1A of this Quarterly Report on Form 10-Q and our other filings with the SEC. You should not place undue reliance on these forward-looking statements, which apply only as of the date of this Quarterly Report on Form 10-Q. You should read this Quarterly Report on Form 10-Q completely and with the understanding that our actual future results may be materially different from those we expect. Except as required by law, we assume no obligation to update these forward-looking statements, whether as a result of new information, future events or otherwise.
The following discussion and analysis should be read in conjunction with the unaudited financial statements and notes thereto included in Part I, Item 1 of this Quarterly Report on Form 10-Q and with the audited consolidated financial statements and related notes thereto included as part of our Annual Report on Form 10-K for the year ended December 31, 2020.
Overview
XOMA Corporation (“XOMA”), a Delaware corporation, is a biotech royalty aggregator. We have a sizable portfolio of economic rights to future potential milestone and royalty payments associated with partnered pre-commercial therapeutic candidates. Our portfolio was built through licensing our proprietary products and platforms from our legacy discovery and development business, combined with acquisitions of rights to future milestones and royalties that we have made since our royalty aggregator business model was implemented in 2017. Our drug royalty aggregator business is focused on early to mid-stage clinical assets primarily in Phase 1 and 2 with blockbuster potential licensed to large-cap partners. We expect that most of our future revenue will be based on payments we may receive for milestones and royalties related to these programs.
36
Recent Business DevelopmentsPublic Offering of Depositary Shares ​In April 2021, we closed a public offering of 1,600,000 depositary shares, each representing a 1/1000th fractional interest in a share of our 8.375% Series B cumulative, perpetual preferred stock (“Series B Preferred Stock”) at the price of $25.00 per depositary share. Total gross proceeds from the offering were $40.0 million. Total offering costs of approximately $2.8 million were offset against the proceeds from the sale of depositary shares, for net proceeds of approximately $37.2 million. ​Viracta Royalty Purchase AgreementOn March 22, 2021, we entered into a royalty purchase agreement (the “Viracta Royalty Purchase Agreement”) with Viracta Therapeutics, Inc. (“Viracta”). Under the Viracta Royalty Purchase Agreement, we purchased from Viracta the right to receive future royalties, milestones, and other payments related to two clinical stage drug candidates. The first candidate, DAY101 (pan-RAF kinase inhibitor), is being developed by Day One Biopharmaceuticals, and the second candidate, vosaroxin (topoisomerase II inhibitor), is being developed by Denovo Biopharma. Under the terms of the Viracta Royalty Purchase Agreement, we paid Viracta $13.5 million upon closing of the transaction. Under the Viracta Royalty Purchase Agreement, we acquired the right to receive (i) royalties on potential sales related to DAY101, if approved, up to $54.0 million in potential milestones, and other payments related to DAY101 excluding up to $20.0 million consideration retained by Viracta; and (ii) royalties on potential sales related to vosaroxin, if approved, and up to $57.0 million in potential regulatory and commercial milestones, subject to certain payment provisions to a third party.​Portfolio Updates​On April 15, 2021, we announced our portfolio of potential future milestone and royalty assets had increased with the addition of three Affimed N.V. innate cell engager programs (“ICE”). We are eligible to receive royalty payments on future commercial sales of each of the three ICE molecules and milestones for each program achieving marketing approval.On May 3, 2021, we announced we earned a $0.5 million milestone from Janssen Biotech, Inc. (Janssen), as a result of the first patient dosed in a Phase 3 clinical trial evaluating one of Janssen’s biologic assets, cetrelimab. ​COVID-19The COVID-19 pandemic continues to pose risks to our business as clinical trials industry-wide have slowed. Our business is dependent on the continued development and commercialization efforts of our licensees and our royalty agreement counterparties and their licensees. We have been monitoring and continue to monitor our portfolio programs for potential delays in underlying research programs and elections of our partners to continue or cease development. Delays in clinical trials and underlying research programs may lead to delayed revenue from milestones from our licensees and royalty agreement counterparties or, if certain research programs are discontinued, we may recognize impairment charges for our royalty receivables. COVID-19, the related variants, and the timing of vaccine distribution may impact our underlying programs in a variety of ways which are unknown in length and scope at this time.​Critical Accounting PoliciesCritical accounting policies are those that require significant judgment and/or estimates by management at the time that the financial statements are prepared such that materially different results might have been reported if other assumptions had been made. We consider certain accounting policies including those related to legal contingencies, revenue recognition under units-of-revenue method and stock-based compensation to be critical policies. There have been no significant changes in our critical accounting policies during the three months ended March 31, 2021, as compared with those previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2020, filed with the SEC on March 10, 2021.37
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended | ​ | ​ |
| ​ | ​ | March 31, | ​ | ​ |
| ​ | 2021 | 2020 | Change |
| Revenue from contracts with customers | ​ | $ | 19 | ​ | $ | 500 | ​ | $ | (481) |
| Revenue recognized under units-of-revenue method | ​ | 356 | ​ | 304 | ​ | ​ | 52 |
| Total revenues | ​ | $ | 375 | ​ | $ | 804 | ​ | $ | (429) |

| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended | ​ | ​ |
| ​ | ​ | March 31, | ​ | ​ |
| ​ | 2021 | 2020 | Change |
| SVB loan | ​ | $ | 238 | ​ | $ | 383 | ​ | $ | (145) |
| Novartis note | ​ | 51 | ​ | 158 | ​ | (107) |
| Other | ​ | — | ​ | 1 | ​ | (1) |
| Total interest expense | ​ | $ | 289 | ​ | $ | 542 | ​ | $ | (253) |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | Three Months Ended | ​ |
| ​ | ​ | March 31, | ​ | ​ |
| ​ | ​ | 2021 | 2020 | ​ | Change |
| Other expense, net | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| Change in fair value of equity securities | ​ | $ | (672) | ​ | $ | (273) | ​ | $ | (399) |
| Investment income | ​ | ​ | 10 | ​ | ​ | 147 | ​ | ​ | (137) |
| Other | ​ | 5 | ​ | — | ​ | 5 |
| Total other expense, net | ​ | $ | (657) | ​ | $ | (126) | ​ | $ | (531) |

| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | March 31, | ​ | December 31, | ​ | ​ | ​ |
| ​ | 2021 | 2020 | Change |
| Cash | ​ | $ | 67,808 | ​ | $ | 84,222 | ​ | $ | (16,414) |
| Working capital | ​ | $ | 57,143 | ​ | $ | 75,763 | ​ | $ | (18,620) |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | Three Months Ended March 31, | ​ | ​ |
| ​ | 2021 | 2020 | Change |
| Net cash used in operating activities | ​ | $ | (914) | ​ | $ | (2,280) | ​ | $ | 1,366 |
| Net cash used in investing activities | ​ | (13,500) | ​ | ​ | — | ​ | (13,500) |
| Net cash used in financing activities | ​ | (2,000) | ​ | (1,096) | ​ | (904) |
| Net decrease in cash | ​ | $ | (16,414) | ​ | $ | (3,376) | ​ | $ | (13,038) |

On March 17, 2021, our Board of Directors declared the initial quarterly dividend to be paid in cash at a rate of $0.71875 per share to holders of record of the Series A Preferred Stock as of April 2, 2021. The dividend was paid on April 15, 2021.​​Public Offering of Depositary Shares​In April 2021, we closed a public offering of 1,600,000 depositary shares, each representing a 1/1000th fractional interest in a share of our Series B Preferred Stock at the price of $25.00 per depositary share. Total gross proceeds from the offering were $40.0 million. Total offering costs of approximately $2.8 million were offset against the proceeds from the sale of depositary shares, for net proceeds of approximately $37.2 million. ​Holders of depositary shares representing interests in the Series B Preferred Stock are entitled to receive, when and as declared by our Board of Directors, out of funds legally available for the payment of dividends, cumulative cash dividends at the rate of 8.375% of the $25,000 liquidation preference per share of Series B Preferred Stock ($25.00 per depositary share) per year (equivalent to $2,093.75 per year or $2.09375 per depositary share). Dividends on the Series B Preferred Stock will accumulate and be cumulative from, and including, the date of original issue by us of the Series B Preferred Stock. Dividends will be payable in arrears on or about the 15th day of January, April, July and October beginning on or about July 15, 2021. Of the proceeds, $3.4 million is held as restricted cash in a segregated account that may only be used to pay dividends on the Series B Preferred Stock underlying the depositary shares.​Silicon Valley Bank Loan AgreementUnder our Loan Agreement with SVB, upon our request, SVB made advances available to us up to $20.0 million. In March 2019, we and SVB amended the Loan Agreement to extend the draw period from March 31, 2019 to March 31, 2020. Our draw period lapsed on March 31, 2020 with no further extension. In connection with the amendment in March 2019, we issued a second warrant to SVB which is exercisable in whole or in part for up to an aggregate of 4,845 shares of common stock with an exercise price of $14.71 per share. The warrant may be exercised on a cashless basis and is exercisable within 10 years from the date of issuance or upon the consummation of certain acquisitions of XOMA. As of March 31, 2021, we had an outstanding principal balance of $10.1 million under the Loan Agreement, and a net carrying value of $9.8 million, $7.2 million of which was classified as current portion of long-term debt.2018 ATM Agreement​On December 18, 2018, we entered into an At The Market Issuance Sales Agreement (the “2018 ATM Agreement”) with H.C. Wainwright & Co., LLC (“HCW”), under which we may offer and sell from time to time at our sole discretion shares of our common stock through HCW as our sales agent, in an aggregate amount not to exceed $30.0 million. HCW may sell the shares by any method permitted by law deemed to be an “at the market” offering as defined in Rule 415 of the Securities Act, and will use its commercially reasonable efforts consistent with its normal trading and sales practices to sell the shares up to the amount specified. We are required to pay HCW a commission of up to 3% of the gross proceeds of any shares of common stock sold under the 2018 ATM Agreement. On March 10, 2021, we amended the 2018 ATM Agreement with HCW to increase the aggregate amount of shares of our common stock that we could sell through HCW as our sales agent to $50.0 million. We have not sold any shares of common stock under the 2018 ATM Agreement.***We have incurred significant operating losses since our inception and have an accumulated deficit of $1.2 billion as of March 31, 2021. As of March 31, 2021, we had $67.8 million and $2.1 million in unrestricted and restricted cash, which we anticipate will enable us to maintain our operations for a period of at least 12 months following the filing date of this report.We have taken and continue to take steps to manage our resources by reducing and/or deferring certain discretionary expenditures to mitigate the adverse impact of the COVID-19 pandemic. Future impacts of COVID-19, related variants, and vaccine distribution may require further actions to improve our cash position, which may include 41
reducing or delaying acquisitions of additional royalty and milestone rights or obtaining additional funds through debt arrangements, the 2018 ATM Agreement, or other equity issuances. Our ability to raise additional capital in the equity and debt markets, should we choose to do so, is dependent on a number of factors, including, but not limited to, the market demand for our common stock, which itself is subject to a number of development and business risks and uncertainties, our creditworthiness and the uncertainty that we would be able to raise such additional capital at a price or on terms that are favorable to us. In addition, our ability to raise additional funds may be adversely impacted by deteriorating global economic conditions and the recent disruptions to and volatility in the credit and financial markets in the United States and worldwide resulting from the ongoing COVID-19 pandemic.Changes in Commitments and ContingenciesOur commitments and contingencies were reported in our Annual Report on Form 10-K for the year ended December 31, 2020, as filed with the SEC. There have been no material changes from the commitment and contingencies previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2020.Off-balance Sheet ArrangementsWe have not engaged in any off-balance sheet arrangements, including the use of structured finance, special purpose entities or variable interest entities.
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are a smaller reporting company as defined by Rule 12b-2 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and are not required to provide the information required under this item.
ITEM 4. CONTROLS AND PROCEDURES
Evaluation of Controls and Procedures
We have established disclosure controls and procedures, as defined in Rule 13a-15(e) and 15d-15(e) of the Exchange Act. Our Chief Executive Officer and our Chief Financial Officer have concluded, based on the evaluation of the effectiveness of our disclosure controls and procedures by our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, as of the end of the period covered by this report, that our disclosure controls and procedures were effective at the reasonable assurance level.
Changes in Internal Control
There have been no changes in our internal controls over financial reporting as defined in Rule 13a-15(f) under the Exchange Act during our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting. While COVID-19 has resulted in our staff operating remotely, our established internal control structure is not impacted. As we continue to monitor and adapt to the changing environment due to COVID-19 and the related possibility of a cybersecurity impact, including a security breach or cyber-attack, we will continue to evaluate our internal controls over financial reporting.
​
PART II – OTHER INFORMATION
​
ITEM 1. LEGAL PROCEEDINGS
None.
​
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ITEM 1A. RISK FACTORS
This Quarterly Report on Form 10-Q contains forward-looking information based on our current expectations. Because our actual results may differ materially from any forward-looking statements made by or on behalf of us, this section includes a discussion of important factors that could affect our actual future results, including our revenues, expenses, operating results, cash flows and net loss per share. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations. You should carefully consider these risk factors, together with all of the other information included in this Quarterly Report on Form 10-Q as well as our other publicly available filings with the U.S. Securities and Exchange Commission, or SEC.
We have marked with an asterisk (*) those risks described below that reflect substantive changes from, or additions to, the risks described in our Annual Report on Form 10-K for the year ended December 31, 2020.
​
Risk Factors Summary
​
Below is a summary of material factors that make an investment in our securities speculative or risky. Importantly, this summary does not address all of the risks and uncertainties that we face. Additional discussion of the risks and uncertainties summarized in this risk factor summary, as well as other risks and uncertainties that we face, can be found under “Risk Factors” below. The below summary is qualified in its entirety by that more complete discussion of such risks and uncertainties. You should consider carefully the risks and uncertainties described under “Risk Factors” below as part of your evaluation of the risks associated with an investment in our securities.
| ● | The COVID-19 pandemic has adversely impacted and could materially and adversely impact in the future our licensees or royalty-agreement counterparties or their licensees, which could cause delays or elimination of our receipts of potential milestones and royalties under our licensing or royalty and milestone acquisition arrangements. |

| ● | Our acquisitions of potential future royalty and/or milestone payments may not produce anticipated revenues and/or may be negatively affected by a default or bankruptcy of the licensor(s) or licensee(s) under the applicable license agreement(s) covering such potential royalties and/or milestones, and if such transactions are secured by collateral, we may be, or may become, under-secured by the collateral or such collateral may lose value and we will not be able to recuperate our capital expenditures associated with the acquisition. |

| ● | Many of our potential royalty acquisitions may be associated with drug products that are in clinical development and have not yet been commercialized. To the extent that such products are not successfully developed and commercialized, our financial condition and results of operations may be negatively impacted. Acquisitions of potential royalties associated with development stage biopharmaceutical product candidates are subject to a number of uncertainties. |

| ● | We depend on our licensees and royalty-agreement counterparties for the determination of royalty and milestone payments. While we typically have primary or back-up rights to audit our licensees and royalty-agreement counterparties, the independent auditors may have difficulty determining the correct royalty calculation, we may not be able to detect errors and payment calculations may call for retroactive adjustments. We may have to exercise legal remedies, if available, to resolve any disputes resulting from any such audit. |

| ● | The lack of liquidity of our acquisitions of future potential milestones and royalties may adversely affect our business and, if we need to sell any of our acquired assets, we may not be able to do so at a favorable price, if at all. As a result, we may suffer losses. We have sustained losses in the past, and we expect to sustain losses in the foreseeable future. |

| ● | Our royalty aggregator strategy may require that we register with the SEC as an “investment company” in accordance with the Investment Company Act of 1940. If we were to become an “investment company” and be subject to the restrictions of the 1940 Act, those restrictions would likely require significant changes in the way we do business and add significant administrative burdens to our operations. |

43
| ● | Our royalty aggregator strategy may require us to raise additional funds to acquire milestone and royalty interests; we cannot be certain that funds will be available or available at an acceptable cost of capital, and if they are not available, we may be unsuccessful in acquiring milestone and royalty interests to sustain the business in the future. |
| ● | We have significantly restructured our business and revised our business plan and there are no assurances that we will be able to successfully implement our revised business plan or successfully operate as a royalty aggregator. |
| ● | Information available to us about the biopharmaceutical products underlying the potential royalties we buy may be limited and therefore our ability to analyze each product and its potential future cash flow may be similarly limited. |
| ● | Our future income is dependent upon numerous potential milestone and royalty-specific assumptions and, if these assumptions prove not to be accurate, we may not achieve our anticipated rates of returns. |
| ● | Reductions or declines in income from potential milestones and royalties, or significant reductions in potential milestone or royalty payments compared to expectations, or impairments in the value of potential milestones and royalties acquired could have a material adverse effect our financial condition and results of operations. |
| ● | A large percentage of the calculated net present value of our portfolio is represented by a limited number of products. The failure of any one of these products to move forward in clinical development or commercialization may have a material adverse effect on our financial condition and results of operation. |
| ● | We rely heavily on license and collaboration relationships, and any disputes or litigation with our licensees, collaborators and their partners or termination or breach of any of the related agreements could reduce the financial resources available to us, including our ability to receive milestone payments and future potential royalty and other revenues. At any given time, we may be engaged in discussions with our licensees or collaborators regarding the interpretation of the payment and other provisions relating to products as to which we have milestones and potential royalty or other payment rights. Should any such discussions result in a disagreement regarding a particular product that cannot be resolved satisfactorily to us, we may end up being paid less than anticipated on such product which could materially adversely affect our financial condition, results of operation and future prospects. |
| ● | Our potential milestone and royalty providers may rely on third parties to provide services in connection with their product candidate development and manufacturing programs. The inadequate performance by or loss of any of these service providers could affect our potential milestone and royalty providers’ product candidate development. |
| ● | Certain of our technologies are in-licensed from third parties, so our and our licensees’ capabilities using them may be restricted and subject to additional risks. |
| ● | Because many of the companies with which we do business also are in the biotechnology sector, the volatility of that sector can affect us indirectly as well as directly. |
| ● | We may not be able to successfully identify and acquire potential milestone and royalty streams on other products, product candidates, or programs, or other companies to grow and diversify our business, and, even if we are able to do so, we may not be able to successfully manage the risks associated with integrating any such products, product candidates, programs or companies into our business or we may otherwise fail to realize the anticipated benefits of these acquisitions. |
| ● | If our potential royalty providers’ therapeutic product candidates do not receive regulatory approval, our potential royalty providers will be unable to market them. |
| ● | Our potential milestone and royalty providers face uncertain results of clinical trials of product candidates. |

| ● | Our potential royalty providers may be unable to price their products effectively or obtain coverage and adequate reimbursement for sales of their products, which would prevent our licensees and potential royalty providers’ products from becoming profitable and negatively affect the royalties we may receive. |
| ● | We do not know whether there will be, or will continue to be, a viable market for the product candidates in which we have an ownership, milestone or royalty interest. |
| ● | If we and our potential royalty providers are unable to protect our intellectual property, in particular patent protection for principal products, product candidates and processes in which we have an ownership or royalty interest, and prevent the use of the covered subject matter by third parties, our potential royalty providers’ ability to compete in the market will be harmed, and we may not realize our profit potential. |
| ● | We have a continuing obligation to pay quarterly dividends to holders of our Series A Preferred Stock and holders of depositary shares representing interests in our Series B Preferred Stock, which will be an on-going expenditure for us and may limit our ability to borrow additional funds. |
| ● | delays or difficulties in recruiting and enrolling new patients in their clinical trials; |
| ● | delays or difficulties in clinical site initiation, including difficulties in recruiting clinical site investigators and clinical site staff; |
| ● | diversion of healthcare resources away from the conduct of clinical trials, including the diversion of hospitals serving as their clinical trial sites and hospital staff supporting the conduct of their clinical trials; |
| ● | interruption of key clinical trial activities, such as clinical trial site monitoring, due to limitations on travel imposed or recommended by federal, state or local governments, employers and others; |
| ● | limitations in employee resources that would otherwise be focused on the conduct of their clinical trials, including because of sickness of employees or their families or the desire of employees to avoid contact with large groups of people; |
| ● | interruption in global shipping that may affect the transport of clinical trial supplies and materials, such as the investigational drug product used in their clinical trials; |

| ● | delays in receiving approval from the U.S. Food and Drug Administration (“FDA”), the European Medicines Agency (“EMA”) and other U.S. and foreign federal, state and local regulatory authorities to initiate their planned clinical trials or to market their products; |
| ● | changes in FDA, state and local regulation (and those of their foreign counterparts if applicable) as part of a response to the COVID-19 pandemic which may change the ways in which clinical trials are conducted or discontinue clinical trials altogether; |
| ● | delays in necessary interactions with regulators, ethics committees and other important agencies and contractors due to limitations in employee resources or forced furlough of government employees; |
| ● | delay in the timing of other interactions with the FDA due to absenteeism by federal employees or by the diversion of their efforts and attention to approval of other therapeutics or other activities related to COVID-19; and |
| ● | refusal of the FDA to accept data from clinical trials in affected geographies outside the United States or of foreign regulatory authorities to accept data from clinical trials in affected areas outside their applicable countries. |

future negatively affect our liquidity. A recession or market correction resulting from the spread of COVID-19 could materially affect our business and the value of our common stock.The evolving effects of the COVID-19 pandemic have already resulted in significant disruption of global financial markets. While several of our partners have experienced delays due to the COVID-19 pandemic, we do not yet know the full extent of potential delays or impacts on our business, clinical trials, healthcare systems or the global economy as a whole. However, the effects could continue to have an impact on our operations and could have a material adverse effect on our business, financial condition, results of operations and prospects in future periods.​Our acquisitions of potential future royalty and/or milestone payments may not produce anticipated revenues and/or may be negatively affected by a default or bankruptcy of the licensor(s) or licensee(s) under the applicable license agreement(s) covering such potential royalties and/or milestones, and if such transactions are secured by collateral, we may be, or may become, under-secured by the collateral or such collateral may lose value and we will not be able to recuperate our capital expenditures associated with the acquisition.We are engaged in a continual review of opportunities to acquire future royalties, milestones and other payments related to drug development and sales as part of our royalty aggregator strategy or to acquire companies that hold royalty assets. Generally, at any time, we seek to have acquisition opportunities in various stages of active review, including, for example, our engagement of consultants and advisors to analyze particular opportunities, technical, financial and other confidential information, submission of indications of interest and involvement as a bidder in competitive auctions. Many potential acquisition targets do not meet our criteria, and for those that do, we may face significant competition for these acquisitions from other royalty buyers and enterprises. Competition for future asset acquisition opportunities in our markets could increase the price we pay for such assets and could reduce the number of potential acquisition targets. The success of our acquisitions is based on our ability to make accurate assumptions regarding the valuation, probability, timing and amount of potential future royalty and milestone payments as well as the viability of the underlying technology and intellectual property. The failure of any of these acquisitions to produce anticipated revenues may materially and adversely affect our financial condition and results of operations.Some of these acquisitions may expose us to credit risk in the event of a default by or bankruptcy of the licensor(s) or licensee(s) that are parties to the applicable license agreement(s) covering the potential milestone and royalty streams being acquired. In addition, the impact of COVID-19 on the capital markets may limit our licensees or royalty-agreement counterparties’ ability to access additional funding. While we generally try to structure our receipt of potential milestone and royalty payments to minimize the risk associated with such a default or bankruptcy, there can be no assurance that any such default or bankruptcy will not adversely affect our ability to receive future potential royalty and/or milestone payments. To mitigate this risk, on occasion, we may obtain a security interest as collateral in such royalty, milestone and other payments. Our credit risk in respect of such counterparty may be exacerbated when the collateral held by us cannot be realized upon or is liquidated at prices not sufficient to recover the full amount we are due pursuant to the terms of the agreements covering the particular assets. This could occur in circumstances where the original collateral was not sufficient to cover a complete loss (e.g., our interests were only partially secured) or may result from the deterioration in value of the collateral, so that, in either such case, we are unable to recuperate our full capital outlay. Any such losses resulting therefrom could materially and adversely affect our financial condition and results of operations.Many of our potential royalty acquisitions may be associated with drug products that are in clinical development and have not yet been commercialized. To the extent that such products are not successfully developed and commercialized, our financial condition and results of operations may be negatively impacted. Acquisitions of potential royalties associated with development stage biopharmaceutical product candidates are subject to a number of uncertainties.As part of our royalty aggregator strategy, we may continue to purchase future potential milestone and royalty streams associated with drug products which are in clinical development and have not yet received marketing approval by any regulatory authority or been commercialized. There can be no assurance that the FDA, the EMA or other regulatory authorities will approve such products or that such products will be brought to market timely or at all, or that the market will be receptive to such products. To the extent that any such drug products are not successfully developed and subsequently commercialized, the value of our acquired potential milestone and royalty streams will be negatively affected. The ultimate success of our royalty aggregator strategy will depend on our ability to properly identify and acquire high 47
quality products and the ability of the applicable counterparty to innovate, develop and commercialize their products, in increasingly competitive and highly regulated markets. Their inability to do so would negatively affect our ability to receive royalty and/or milestone payments. In addition, we are dependent, to a large extent, on third parties to enforce certain rights for our benefit, such as protection of a patent estate, adequate reporting and other protections, and their failure to do so would presumably negatively impact our financial condition and results of operations. If the FDA, the EMA or other regulatory authority approves a development-stage product candidate that generates our royalty, the labeling, packaging, adverse event reporting, storage, advertising, promotion and recordkeeping for the product will be subject to extensive and ongoing regulatory requirements. The subsequent discovery of previously unknown problems with the product, including adverse events of unanticipated severity or frequency, may result in restrictions on the marketing of the product, and could include withdrawal of the product from the market.​In addition, the developers of these development-stage product candidates may not be able to raise additional capital to continue their discovery, development and commercialization activities, which may cause them to delay, reduce the scope of, or eliminate one or more of their clinical trials or research and development programs. If other product developers introduce and market products that are more effective, safer, less invasive or less expensive than the relevant products that generate our royalties, or if such developers introduce their products prior to the competing products underlying our royalties, such products may not achieve commercial success and thereby result in a loss for us. Further, the developers of such products may not have sales, marketing or distribution capabilities. If no sales, marketing or distribution arrangements can be made on acceptable terms or at all, the affected product may not be able to be successfully commercialized, which will result in a loss for us. Losses from such assets could have a material adverse effect on our business, financial condition and results of operations. We intend to continue, and may increase, this strategy of acquiring development-stage product candidates. While we believe that we can readily evaluate and gain conviction about the likelihood of a development-stage product candidate’s approval and achieving significant sales, there can be no assurance that our assumptions will prove correct, that regulatory authorities will approve such development-stage product candidates, that such development-stage product candidates will be brought to market timely or at all, or that such products will achieve commercial success. We have significantly restructured our business and revised our business plan and there are no assurances that we will be able to successfully implement our revised business plan or successfully operate as a royalty aggregator.We have historically been focused on discovering and developing innovative therapeutics derived from our unique platform of antibody technologies. We have now become a royalty aggregator where we focus on expanding our pipeline of fully-funded programs by out-licensing our internally developed product candidates and acquiring potential milestone and royalty revenue streams on additional third-party drug product candidates. Our strategy is based on a number of factors and assumptions, some of which are not within our control, such as the actions of third parties. There can be no assurance that we will be able to successfully execute all or any elements of our strategy, or that our ability to successfully execute our strategy will be unaffected by external factors. If we are unsuccessful in acquiring potential milestone and royalty revenue streams on additional drug product candidates, or those acquisitions do not perform to our expectations, our financial performance and balance sheet could be adversely affected.Risks Related to our IndustryBiopharmaceutical products are subject to sales risks. Biopharmaceutical product sales may be lower than expected due to a number of reasons, including pricing pressures, insufficient demand, product competition, failure of clinical trials, lack of market acceptance, obsolescence, loss of patent protection, the impact of the COVID-19 global pandemic or other factors and development-stage product candidates may fail to reach the market. Unexpected side effects, safety or efficacy concerns can arise with respect to a product, leading to product recalls, withdrawals or declining sales. As a result, payments of our future potential milestones and/or royalties may be reduced or cease. In addition, these potential payments may be delayed, causing our near-term financial performance to be weaker than expected. 48
| ● | effectiveness; |
| ● | safety and side effect profile; |
| ● | price, including third-party insurance reimbursement policies; |
| ● | timing and introduction of the product; |
| ● | effectiveness of marketing strategy and execution; |
| ● | governmental regulation; |
| ● | availability of lower-cost generics and/or biosimilars; |
| ● | treatment innovations that eliminate or minimize the need for a product; and |
| ● | product liability claims. |

our royalty revenues in later periods and may require expense on our part. Further, our licensees and royalty-agreement counterparties may be uncooperative or have insufficient records, which may complicate and delay the audit process.Although we intend to regularly exercise our royalty audit rights as necessary and to the extent available, we rely in the first instance on our licensees and royalty-agreement counterparties to accurately report the achievement of milestones and royalty sales and calculate and pay applicable milestones and royalties and, upon exercise of such royalty and other audit rights, we rely on licensees’ and royalty-agreement counterparties’ cooperation in performing such audits. In the absence of such cooperation, we may be forced to incur expenses to exercise legal remedies, if available, to enforce our agreements.The lack of liquidity of our acquisitions of future potential milestones and royalties may adversely affect our business and, if we need to sell any of our acquired assets, we may not be able to do so at a favorable price, if at all. As a result, we may suffer losses.We generally acquire milestone and royalty rights that have limited secondary resale markets and may be subject to transfer restrictions. The illiquidity of most of our milestone and royalty receivable assets may make it difficult for us to dispose of them at a favorable price if at all and, as a result, we may suffer losses if we are required to dispose of any or all such assets in a forced liquidation or otherwise. In addition, if we liquidate all or a portion of our potential future milestone and/or purchased royalty stream interests quickly or relating to a forced liquidation, we may realize significantly less than the value at which we had previously recorded these interests.Our royalty aggregator strategy may require that we register with the SEC as an “investment company” in accordance with the Investment Company Act of 1940.The rules and interpretations of the SEC and the courts, relating to the definition of "investment company" are very complex. While we currently intend to conduct our operations so that we will not be an investment company under applicable SEC interpretations, we can provide no assurance that the SEC would not take the position that the Company would be required to register under the Investment Company Act of 1940 (the “‘40 Act”) and comply with the ‘40 Act’s registration and reporting requirements, capital structure requirements, affiliate transaction restrictions, conflict of interest rules, requirements for disinterested directors, and other substantive provisions. We monitor our assets and income for compliance under the ‘40 Act and seek to conduct our business activities to ensure that we do not fall within its definitions of “investment company,” or that we qualify under one of the exemptions or exclusions provided by the ‘40 Act and corresponding SEC regulations. If we were to become an “investment company” and be subject to the restrictions of the ‘40 Act, those restrictions would likely require significant changes in the way we do business and add significant administrative burdens to our operations. To ensure that we do not fall within the ‘40 Act, we may need to take various actions which we might otherwise not pursue. These actions may include restructuring the Company and/or modifying our mixture of assets and income or a liquidation of certain of our assets.Our licensees or royalty-agreement counterparties or their licensees could be subject to natural disasters, public health crises, political crises and other catastrophic events that could hinder or disrupt development efforts.We depend on our licensees and royalty-agreement counterparties and their licensees to successfully develop and commercialize product candidates for which we may receive milestone and royalty payments in the future. Our licensees and royalty-agreement counterparties and their licensees operate research and development efforts in various locations in the United States and internationally. If any of their facilities is affected by natural disasters, such as earthquakes, tsunamis, power shortages or outages, floods or monsoons, public health crises, such as pandemics and epidemics, political crises, such as terrorism, war, political instability or other conflict, or other events outside of their control, their research and development efforts could be disrupted, which could result in the delay or discontinuation of development of one or more of the product candidates in which we have rights to future milestone and/or royalty payments which could have a material adverse effect on our business operations and prospects.50
| ● | reduce or eliminate royalty aggregation efforts; |
| ● | further reduce our capital or operating expenditures; |
| ● | curtail our spending on protecting our intellectual property; or |
| ● | take other actions which may adversely affect our financial condition or results of operations. |

| ● | our potential future milestones and royalties are used as collateral for our borrowings; |
| ● | in the event of a default under any of our secured borrowings, one or more of our creditors or their assignees could obtain control of our future potential milestones and royalties and, in the event of a distressed sale, these creditors could dispose of these royalties for significantly less value than we could realize for them; |
| ● | we may have to comply with various financial covenants in future agreements that govern our debt, including requirements to maintain certain leverage ratios and coverage ratios, which may affect our ability to achieve our business objectives; |
| ● | our ability to pay dividends to our stockholders (except with respect to our Series A Preferred Stock and Series B Preferred Stock) may be restricted; |
| ● | to the extent that interest rates at which we borrow increase, our borrowing costs will increase, and our leveraging strategy will become more costly, which could lead to diminished net profits. |

stockholders a liquidation preference of $25.00 per share, plus an amount equal to any accumulated and unpaid dividends up to the date of payment (whether or not declared), before any distribution or payment may be made to holders of shares of common stock or any other class or series of our equity stock ranking, as to liquidation rights, junior to the Series A Preferred Stock. On and after December 15, 2021, the shares of Series A Preferred Stock will be redeemable at our option, in whole or in part, at redemption prices ranging from $26.00 per share to $25.00 per share, plus any accrued and unpaid dividends, depending on the date of redemption.Holders of depositary shares representing interests in the Series B Preferred Stock are entitled to receive, when and as declared by our Board of Directors, out of funds legally available for the payment of dividends, cumulative cash dividends at the rate of 8.375% of the $25,000 liquidation preference per share of Series B Preferred Stock ($25.00 per depositary share) per year (equivalent to $2,093.75 per year or $2.09375 per depositary share). Dividends on the Series B Preferred Stock will accumulate and be cumulative from, and including, the date of original issue by us of the Series B Preferred Stock. Dividends will be payable in arrears on or about the 15th day of January, April, July and October beginning on or about July 15, 2021. Of the proceeds, $3.4 million is held as restricted cash in a segregated account that may only be used to pay dividends on the Series B Preferred Stock underlying the depositary shares. The payment of cash dividends and share repurchases is subject to limitations under applicable laws and the discretion of our Board of Directors and is determined after considering current conditions, including earnings, other operating results and capital requirements. Decreases in asset values or increases in liabilities can reduce net earnings and stockholders’ equity. A deficit in stockholders’ equity could limit our ability to pay dividends and make share repurchases under Delaware law. On the other hand, our continued obligation to pay dividends to the holders of our Series A Preferred Stock and depositary shares representing interests in Series B Preferred Stock could restrict us from additional borrowings or make them more costly.The holders of our indebtedness and preferred stock have rights that are senior to those of our common stockholders.*As of March 31, 2021, the outstanding principal balance of our indebtedness under the Loan and Security Agreement with Silicon Valley Bank (the “SVB Loan Agreement”) was $10.1 million. The indebtedness under the SVB Loan Agreement is senior to our shares of preferred stock and common stock in right of payment of dividends and other distributions. In the event of our bankruptcy, dissolution or liquidation, the holders of our indebtedness must be satisfied before any distributions can be made to our preferred or common stockholders. At March 31, 2021, we had issued and outstanding 984,000 shares of Series A Preferred Stock with a liquidation preference of $25.00 per share, plus an amount equal to any accumulated and unpaid dividends up to the date of payment (whether or not declared). Additionally, as of April 9, 2021, we had issued and outstanding 1,600,000 depositary shares, each representing a 1/1000th fractional interest in a share of our Series B Preferred Stock with a liquidation preference of $25,000 per share of Series B Preferred Stock ($25.00 per depositary share), plus an amount equal to any accumulated and unpaid dividends up to the date of payment (whether or not declared). Our preferred stock is senior to our shares of common stock in right of payment of dividends and other distributions. In the event of our bankruptcy, dissolution or liquidation, the holders of our preferred stock must be satisfied before any distributions can be made to our common stockholders.​Information available to us about the biopharmaceutical products underlying the potential royalties we buy may be limited and therefore our ability to analyze each product and its potential future cash flow may be similarly limited. We may have limited information concerning the products generating the future potential milestones and royalties we are evaluating for acquisition. Often, the information we have regarding products following our acquisition of a potential milestone or royalty may be limited to the information that is available in the public domain. Therefore, there may be material information that relates to such products that we would like to know but do not have and may not be able to obtain. For example, we do not always know the results of studies conducted by marketers of the products of others or the nature or amount of any complaints from doctors or users of such products. In addition, the market data that we obtain 53
independently may also prove to be incomplete or incorrect. Due to these and other factors, the actual potential cash flow from a potential royalty may be significantly lower than our estimates. Our future income is dependent upon numerous potential milestone and royalty-specific assumptions and, if these assumptions prove not to be accurate, we may not achieve our expected rates of returns.Our business model is based on multiple-year internal and external forecasts regarding potential product sales and numerous product-specific assumptions in connection with each potential milestone and royalty acquisition, including where we have limited information regarding the product. There can be no assurance that the assumptions underlying our financial models, including those regarding potential product sales or competition, patent expirations or license terminations for the products underlying our portfolio, are accurate. These assumptions involve a significant element of subjective judgment and may be and in the past have been adversely affected by post-acquisition changes in market conditions and other factors affecting the underlying product. Our assumptions regarding the financial stability or operational or marketing capabilities of the partner obligated to pay us potential royalties may also prove to be incorrect. Due to these and other factors, the assets in our current portfolio or future assets may not generate our projected returns or in the time periods we expect. This could negatively impact our results of operation for a given period. Reductions or declines in income from potential milestones and royalties, or significant reductions in potential milestone or royalty payments compared to expectations, or impairments in the value of potential milestones and royalties acquired could have a material adverse effect our financial condition and results of operations. The amount and duration of a royalty usually varies on a country-by-country basis and can be based on a number of factors, such as payments to third party licensors, whether the product is sold singly or in combination, patent expiration dates, regulatory exclusivity, years from first commercial sale of the applicable drug product, the entry of competing generic or biosimilar products, or other terms set out in the contracts governing the royalty. It is common for royalty durations to expire earlier or later than anticipated due to unforeseen positive or negative developments over time, including with respect to the granting of patents and patent term extensions, the invalidation of patents, claims of patent misuse, litigation between the party controlling the patents and third party challengers of the patents, the ability of third parties to design around or circumvent valid patents, the granting of regulatory exclusivity periods or extensions, timing for the arrival of generic or biosimilar competitor products, changes to legal or regulatory regimes affecting intellectual property rights or the regulation of pharmaceutical products, product life cycles, and industry consolidations. If an unexpected reduction in a royalty amount or shortening of a potential royalty term were to occur, it could result in a reduction in potential income from milestones and royalties, a significant reduction in potential milestones and royalty payments compared to expectations, or a permanent impairment of such potential milestones and royalty payments. A large percentage of the calculated net present value of our portfolio is represented by a limited number of products. The failure of any one of these products to move forward in clinical development or commercialization may have a material adverse effect on our financial condition and results of operation. Our asset portfolio may not be fully diversified by product, therapeutic area, geographic region or other criteria. Any significant deterioration in the amount or likelihood of receipt of potential cash flows from the top products in our asset portfolio could have a material adverse effect on our business, financial condition and results of operations. In addition, should the payor of any future potential milestones or royalties decline to pay such potential milestones and royalties for any reason, such failure may result in a material adverse effect on our financial condition and results of operation.54
| ● | the scope or duration of rights granted under the license or collaboration agreement and other interpretative issues; |
| ● | the amounts or timing of royalties, milestones or other payments due under the license or collaboration agreement; |
| ● | the sublicensing of patent or other rights under our license or collaboration relationships; |
| ● | the diligence obligations under the license or collaboration agreement and what activities satisfy such diligence obligations: |
| ● | the inventorship and ownership of inventions and know-how resulting from the joint creation or use of intellectual property by us or our partners; and |
| ● | the priority of invention of patented technology. |

not materialize, this could result in a significant loss to us and materially adversely affect our business, financial condition and results of operations. At any given time, the Company may be engaged in discussions with its licensees or collaborators regarding the interpretation of the payment and other provisions relating to products as to which we have milestones and potential royalty or other payment rights. Should any such discussions result in a disagreement regarding a particular product that cannot be resolved satisfactorily to us, we may end up being paid less than anticipated on such product should it successfully progress through clinical development and be approved for commercialization. Should our milestone and future potential royalty or other payment interests be reduced or eliminated as result of any such disagreement, it could have an adverse effect on our business, financial condition, results of operation and prospects. Our existing collaborations may not continue or be successful, and we may be unable to enter into future collaborative arrangements to develop and commercialize our unpartnered assets. Generally, our current collaborative partners also have the right to terminate their collaborations at will or under specified circumstances. If any of our collaborative partners breach or terminate their agreements with us or otherwise fail to conduct their collaborative activities successfully (for example, by not making required payments when due, or at all or failing to engage in commercially reasonable efforts to develop products if required), our product development under these agreements will be delayed or terminated. Our potential milestone and royalty providers may rely on third parties to provide services in connection with their product candidate development and manufacturing programs. The inadequate performance by or loss of any of these service providers could affect our potential milestone and royalty providers’ product candidate development.Third parties provide services in connection with preclinical and clinical development programs, including in vitro and in vivo studies, assay and reagent development, immunohistochemistry, toxicology, pharmacokinetics, clinical trial support, manufacturing and other outsourced activities. If these service providers do not adequately perform the services for which our potential milestone and royalty providers have contracted, or cease to continue operations, and are not able to find a replacement provider quickly or lose information or items associated with their drug product candidates, our potential milestone and royalty providers’ development programs and receipt of any potential resulting income may be delayed.Agreements with other third parties, many of which are significant to our business, expose us to numerous risks.Because our licensees, suppliers and contractors are independent third parties, they may be subject to different risks than we are and have significant discretion in, and different criteria for, determining the efforts and resources they will apply related to their agreements with us. If these licensees, suppliers and contractors do not successfully perform the functions for which they are responsible, we may not have the capabilities, resources or rights to do so on our own.We do not know whether we or our licensees will successfully develop and market any of the products that are or may become the subject of any of our licensing arrangements. In addition, third-party arrangements such as ours also increase uncertainties in the related decision-making processes and resulting progress under the arrangements, as we and our licensees may reach different conclusions, or support different paths forward, based on the same information, particularly when large amounts of technical data are involved.Under our contracts with NIAID, a part of the National Institute of Health (“NIH”), we invoiced using NIH provisional rates, and these are subject to future audits at the discretion of NIAID’s contracting office. In October of 2019, NIH notified us that it engaged KPMG LLP (“KPMG”) to perform an audit of our Incurred Cost Submissions for 2013, 2014 and 2015. The audit procedures were complete as of December 31, 2020 and we adjusted our estimated liability owed to NIH to $1.4 million. This audit has resulted in an adjustment to revenue previously reported. The audit remains subject to further review by NIH as part of the contract close-out process, which includes finalization of rates for years 2010 through 2015, and we may incur further liability as a result. In addition, under the contracts with HCRP, the amortization for the reporting period is calculated based on the payments expected to be made by the licensees to HCRP over the term of the arrangement. Any changes to the estimated payments by the licensees to HCRP can result in a material adjustment to revenue previously reported.56
Failure of our potential milestone and royalty providers’ product candidates to meet current Good Manufacturing Practices standards may subject our licensees to delays in regulatory approval and penalties for noncompliance.Our potential milestone and royalty providers may rely on third party manufacturers and such contract manufacturers are required to produce clinical product candidates under current Good Manufacturing Practices (“cGMP”) to meet acceptable standards for use in clinical trials and for commercial sale, as applicable. If such standards change, the ability of contract manufacturers to produce our potential milestone and royalty providers’ drug product candidates on the schedule required for clinical trials or to meet commercial requirements may be affected. In addition, contract manufacturers may not perform their obligations under their agreements with our potential milestone and royalty providers or may discontinue their business before the time required by us to successfully produce clinical and commercial supplies of our potential milestone and royalty providers’ product candidates.Contract manufacturers are subject to pre-approval inspections and periodic unannounced inspections by the FDA and corresponding state and foreign authorities to ensure strict compliance with cGMP and other applicable government regulations and corresponding foreign standards. We do not have control over a third-party manufacturer’s compliance with these regulations and standards. Any difficulties or delays in contractors’ manufacturing and supply of our potential milestone and royalty providers’ product candidates or any failure of our potential milestone and royalty providers’ contractors to maintain compliance with the applicable regulations and standards could increase costs, reduce revenue, make our licensees postpone or cancel clinical trials, prevent or delay regulatory approval by the FDA and corresponding state and foreign authorities, prevent the import and/or export of our potential milestone and royalty providers’ product candidates, or cause any of our potential milestone and royalty providers’ products that may be approved for commercial sale to be recalled or withdrawn.Certain of our technologies are in-licensed from third parties, so our and our licensees’ capabilities use of them may be restricted and subject to additional risks.We have licensed technologies from third parties. These technologies include phage display technologies licensed to us in connection with our bacterial cell expression technology licensing program and antibody products. However, our and our licensees and collaborators’ use of these technologies is limited by certain contractual provisions in the licenses relating to them, and although we have obtained numerous licenses, intellectual property rights in the area of phage display are particularly complex. If we are unable to maintain our licenses, patents or other intellectual property, we could lose important protections that are material to continuing our operations and for future prospects. Our licensors also may seek to terminate our license, which could cause us and our licensees to lose the right to use the licensed intellectual property and adversely affect our and our licensees’ ability to commercialize our technologies, products or services.Risks Related to the Development and Commercialization of our Current and Future Product CandidatesWe may not be able to successfully identify and acquire potential milestone and royalty streams on other products, product candidates, or programs, or other companies to grow and diversify our business, and, even if we are able to do so, we may not be able to successfully manage the risks associated with integrating any such products, product candidates, programs or companies into our business or we may otherwise fail to realize the anticipated benefits of these acquisitions.To grow and diversify our business, we plan to continue our business development efforts to identify and seek to acquire and/or in-license potential milestone and royalty streams or companies. Future growth through acquisition or in-licensing will depend upon the availability of suitable products, product candidates, programs or companies for acquisition or in-licensing on acceptable prices, terms and conditions. Even if appropriate opportunities are available, we may not be able to acquire rights to them on acceptable terms, or at all. The competition to acquire or in-license rights to promising products, product candidates, programs and companies is fierce, and many of our competitors are large, multinational pharmaceutical and biotechnology companies with considerably more financial, development and commercialization resources, personnel, and experience than we have. In order to compete successfully in the current business climate, we may have to pay higher prices for assets than may have been paid historically, which may make it more difficult for us to realize an adequate return on any acquisition.57
| ● | clinical development and testing; |
| ● | manufacturing; |
| ● | labeling; |
| ● | storage; |
| ● | record keeping; |
| ● | promotion and marketing; and |
| ● | importing and exporting. |

| ● | our potential milestone and royalty providers’ future filings will be delayed; |
| ● | our potential milestone and royalty providers’ preclinical studies will be successful; |
| ● | our potential milestone and royalty providers will be successful in generating viable product candidates; |
| ● | we will be successful in finding collaboration and licensing partners to advance our product candidates on our behalf; |
| ● | our potential milestone and royalty providers will be able to provide necessary data; |
| ● | results of future clinical trials by our potential milestone and royalty providers will justify further development; or |

| ● | our potential milestone and royalty providers ultimately will achieve regulatory approval for product candidates in which we have an interest. |
| ● | significantly greater financial resources; |
| ● | larger research and development staffs; |
| ● | entered into arrangements with, or acquired, biotechnology companies to enhance their capabilities; or |
| ● | extensive experience in preclinical testing and human clinical trials. |

is perceived to have a competitive advantage, or another product’s failure is perceived to increase the likelihood that our licensed product will fail, our potential milestone and royalty providers may halt development of product candidates in which we have an interest.Our potential royalty providers may be unable to price our products effectively or obtain coverage and adequate reimbursement for sales of our products, which would prevent our potential royalty providers’ products from becoming profitable and negatively affect the royalties we may receive.If our potential royalty providers succeed in bringing our product candidates to the market, they may not be considered cost effective, and reimbursement to the patient may not be available or may not be sufficient to allow our potential royalty providers to sell the products on a competitive basis. In both the United States and elsewhere, sales of medical products and treatments are dependent, in part, on the availability of coverage and adequate reimbursement from third-party payors, such as government and private insurance plans. Significant uncertainty exists as to the coverage and reimbursement status of any products for which our potential royalty providers may obtain regulatory approval. Even if coverage is available, the associated reimbursement rate may not be adequate for our potential royalty providers to cover related costs. Additionally, coverage and reimbursement policies for drug products can differ significantly from payor to payor as there is no uniform policy of coverage and reimbursement for drug products among third-party payors in the United States. Therefore, the process of obtaining coverage and reimbursement is often time-consuming and costly.Third-party payors are increasingly challenging the prices charged for pharmaceutical products and services. Our business is affected by the efforts of government and third-party payors to contain or reduce the cost of healthcare through various means. In the United States, there have been and will continue to be a number of federal and state proposals to implement government controls on pricing.In addition, the emphasis on managed care in the United States has increased and will continue to increase the pressure on the pricing of pharmaceutical products. We cannot predict whether any legislative or regulatory proposals will be adopted or the effect these proposals or managed care efforts may have on our or our potential milestone and royalty providers’ businesses.We do not know whether there will be, or will continue to be, a viable market for the product candidates in which we have an ownership or royalty interest.Even if product candidates in which we have an interest receive approval in the future, they may not be accepted in the marketplace. In addition, our potential royalty providers may experience difficulties in launching new products, many of which are novel and based on technologies that are unfamiliar to the healthcare community. We have no assurance healthcare providers and patients will accept such products, if developed. Similarly, physicians may not accept a product if they believe other products to be more effective or more cost effective or are more comfortable prescribing other products.Furthermore, government agencies, as well as private organizations involved in healthcare, from time to time publish guidelines or recommendations to healthcare providers and patients. Such guidelines or recommendations can be very influential and may adversely affect product usage directly (for example, by recommending a decreased dosage of a product in conjunction with a concomitant therapy) or indirectly (for example, by recommending a competitive product over a product in which we have an ownership or royalty interest). Consequently, we do not know if physicians or patients will adopt or use products in which we have an ownership or royalty interest for their approved indications.Even approved and marketed products are subject to risks relating to changes in the market for such products. Introduction or increased availability of generic or biosimilar versions of products can alter the market acceptance of branded products. In addition, unforeseen safety issues may arise at any time, regardless of the length of time a product has been on the market.61
| ● | prevent our competitors from duplicating our products and those of our potential royalty providers; |
| ● | prevent our competitors from gaining access to our proprietary information and technology and that of our potential royalty providers; or |
| ● | permit us or our potential royalty providers to gain or maintain a competitive advantage. |

| ● | whether any pending or future patent applications held by us or our potential royalty providers will result in an issued patent, or whether issued patents will provide meaningful protection against competitors or competitive technologies; |
| ● | whether competitors will be able to design around our or our potential royalty providers’ patents or develop and obtain patent protection for technologies, designs or methods that are more effective than those covered by our or our potential royalty providers’ patents and patent applications; or |
| ● | the extent to which our or our potential royalty providers’ product candidates could infringe on the intellectual property rights of others, which may lead to costly litigation, result in the payment of substantial damages or royalties, reduce the royalty rate due to us, and prevent our potential royalty providers from using our technology or product candidates. |

reasonable terms or at all, thus preventing us, or our licensees, from using these products, processes or services and adversely affecting our potential future revenue.Uncertainties resulting from our participation in intellectual property litigation or other proceedings could have a material adverse effect on our ability to compete in the marketplace. There could also be public announcements of the results of hearings, motions or interim proceedings or developments. If securities analysts or investors perceive these results to be negative, the perceived value of the drug product candidates as to which we hold future potential milestone or royalty interests, or intellectual property could be diminished. Accordingly, the market price of our common stock may decline. Uncertainties resulting from the initiation and continuation of intellectual property litigation or other proceedings could have a material adverse effect of our business, financial condition and results of operation.Risks Related to Employees, Location, Data Integrity, and LitigationThe loss or COVID-19 related absence of any of our personnel, including our Chief Executive Officer or Chief Financial Officer, could delay or prevent achieving our objectives.Our business efforts could be adversely affected by the loss or COVID-19 related absence of one or more key members of our staff, including our executive officers: James R. Neal, our Chief Executive Officer and Thomas Burns, our Senior Vice President, Finance and Chief Financial Officer. We currently do not have key person insurance on any of our employees. In addition, given our minimal employee base, a COVID-19 outbreak in our employee population could significantly hinder our ability to meet our operating objectives.Because we are a small biopharmaceutical focused company with limited resources, we may not be able to attract and retain qualified personnel.We had 10 employees as of May 3, 2021. We may require additional experienced executive, accounting, legal, administrative and other personnel from time to time in the future. There is intense competition for the services of these personnel, especially in California. Moreover, we expect that the high cost of living in the San Francisco Bay Area, where our headquarters is located, may impair our ability to attract and retain employees in the future. If we do not succeed in attracting new personnel and retaining and motivating existing personnel, our business may suffer and we may be unable to implement our current initiatives or grow effectively.We rely and will continue to rely on outsourcing arrangements for many of our activities, including financial reporting and accounting and human resources. Due to our small number of employees, we rely, and expect to continue to rely, on outsourcing arrangements for a significant portion of our activities, including financial reporting and accounting and human resources, as well as for certain of our functions as a public company. We may have limited control over these third parties and we cannot guarantee that they will perform their obligations in an effective and timely manner. Our employees may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements and insider trading. We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees could include intentional failures to comply with applicable regulations, provide accurate information to regulatory authorities, comply with federal and state fraud and abuse laws and regulations, report financial information or data accurately or disclose unauthorized activities to us. In particular, the health care industry is subject to extensive laws and regulations intended to prevent fraud, misconduct, kickbacks, self-dealing and other abusive practices. It is not always possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with these laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business, including the imposition of significant fines or other sanctions. 64
Natural disasters, power shortages, power interruptions or other calamities at our Emeryville headquarters could disrupt our business and adversely affect our operations.Our corporate headquarters is located in Emeryville, California. This location is in an area of seismic activity near active earthquake faults. Any earthquake, tsunami, terrorist attack, riot, fire, power shortage or other calamity affecting our facilities may disrupt our business and could have material adverse effect on our results of operations.If a natural disaster, power outage or other event occurred that prevented us from using all or a significant portion of our headquarters, that damaged critical infrastructure or that otherwise disrupted operations, it may be difficult or, in certain cases, impossible for us to continue our business for a substantial period of time. We may incur substantial expenses as a result of the limited nature of our disaster recovery and business continuity plans, which, particularly when taken together with our lack of earthquake insurance, could have a material adverse effect on our business.Our business and operations would suffer in the event of system failures.Despite the implementation of security measures, our internal computer systems and those of our current and any future licensees, suppliers, contractors and consultants are vulnerable to damage from cyberattacks, computer viruses, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical failures. We could experience failures in our information systems and computer servers, which could be the result of a cyberattacks and could result in an interruption of our normal business operations and require substantial expenditure of financial and administrative resources to remedy. System failures, accidents or security breaches can cause interruptions in our operations and can result in a material disruption of our development programs and other business operations. The loss of clinical trial data from completed or future clinical trials could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. Similarly, we rely on third parties to manufacture our product candidates, and conduct clinical trials of our product candidates, and similar events relating to their computer systems could also have a material adverse effect on our business. To the extent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of confidential or proprietary information, we could incur liability and the development of any of our product candidates could be delayed or otherwise adversely affected.Data breaches and cyberattacks could compromise our intellectual property or other sensitive information and cause significant damage to our business and reputation.In the ordinary course of our business, we maintain sensitive data on our networks, including our intellectual property and proprietary or confidential business information relating to our business and that of our customers and business partners. The secure maintenance of this information is critical to our business and reputation. We believe companies have been increasingly subject to a wide variety of security incidents, cyberattacks and other attempts to gain unauthorized access. These threats can come from a variety of sources, all ranging in sophistication from an individual hacker to a state-sponsored attack. Cyber threats may be generic, or they may be custom-crafted against our information systems. Cyberattacks have become more prevalent and much harder to detect and defend against. Our network and storage applications may be subject to unauthorized access by hackers or breached due to operator error, malfeasance or other system disruptions. It is often difficult to anticipate or immediately detect such incidents and the damage caused by such incidents. These data breaches and any unauthorized access or disclosure of our information or intellectual property could compromise our intellectual property and expose sensitive business information. A data security breach could also lead to public exposure of personal information of our clinical trial patients, customers and others which could expose us to liability under federal or state privacy laws. Cyberattacks can result in the theft of proprietary information which could be used to compete against us and could cause us to incur significant remediation costs, result in product development delays, disrupt key business operations and divert attention of management and key information technology resources. These incidents could also subject us to liability, expose us to significant expense and cause significant harm to our reputation and business.U.S. and international authorities have been warning businesses of increased cybersecurity threats from actors seeking to exploit the COVID-19 pandemic. Moreover, failure to maintain effective internal accounting controls related to data security breaches and cybersecurity in general could impact our ability to produce timely and accurate financial statements and could subject us to regulatory scrutiny. In addition, these breaches and other inappropriate access can be 65
| ● | harm to our reputation; |
| ● | fines imposed on us by regulatory authorities; |
| ● | additional compliance obligations under federal, state or foreign laws; |
| ● | requirements for mandatory corrective action to be taken by us; and |
| ● | requirements to verify the correctness of database contents and otherwise subject us to liability under laws and regulations that protect personal data. |

If we are unable to prevent such data security breaches or privacy violations or implement satisfactory remedial measures, our operations could be disrupted, and we may suffer loss of reputation, financial loss and other regulatory penalties because of lost or misappropriated information, including sensitive patient data. In addition, these breaches and other inappropriate access can be difficult to detect, and any delay in identifying them may lead to increased harm of the type described above. Moreover, the prevalent use of mobile devices that access confidential information increases the risk of data security breaches, which could lead to the loss of confidential information, trade secrets or other intellectual property. While we have implemented security measures to protect our data security and information technology systems, such measures may not prevent such events. We expect that there will continue to be new proposed laws, regulations and industry standards relating to privacy and data protection in the United States, the EU and other jurisdictions, such as the CCPA. We cannot presently determine the impact such laws, regulations and standards will have on our business. It is possible that the GDPR, CCPA or other laws and regulations relating to privacy and data protection may be interpreted and applied in a manner that is inconsistent from jurisdiction to jurisdiction or inconsistent with our current policies and practices and compliance with such laws and regulations could require us to change our business practices and compliance procedures in a manner adverse to our business. We cannot guarantee that we are in compliance with all such applicable data protection laws and regulations as they are enforced now or as they evolve.Risks Related to Government RegulationEven after FDA approval, a product may be subject to additional testing or significant marketing restrictions, its approval may be withdrawn or it may be removed voluntarily from the market.Even if our potential royalty providers receive regulatory approval for our product candidates, our licensees will be subject to ongoing regulatory oversight and review by the FDA and other regulatory entities. The FDA, the EMA, or another regulatory agency may impose, as a condition of the approval, ongoing requirements for post-approval studies or post-approval obligations, including additional research and development and clinical trials, and the FDA, EMA or other regulatory agency subsequently may withdraw approval based on these additional trials or obligations.Even for approved products, the FDA, EMA or other regulatory agency may impose significant restrictions on the indicated uses, conditions for use, labeling, advertising, promotion, marketing and production of such product. In addition, the labeling, packaging, adverse event reporting, storage, advertising, promotion and record-keeping for our products are subject to extensive regulatory requirements.Furthermore, marketing approval of a product may be withdrawn by the FDA, the EMA or another regulatory agency or such product may be withdrawn voluntarily by our potential royalty providers based, for example, on subsequently arising safety concerns. The FDA, EMA and other agencies also may impose various civil or criminal sanctions for failure to comply with regulatory requirements, including withdrawal of product approval.Healthcare reform measures and other statutory or regulatory changes could adversely affect our business.The United States and some foreign jurisdictions have enacted or are considering a number of legislative and regulatory proposals to change the healthcare system in ways that could affect our potential royalty providers’ ability to sell products in which we have ownership or and royalty interests, if approved, profitably. Among policy makers and payors in the United States and elsewhere, there is significant interest in promoting changes in healthcare systems with the stated goals of containing healthcare costs, improving quality and expanding access. In the United States, the pharmaceutical industry has been a particular focus of these efforts and has been significantly affected by major legislative initiatives. Since January 2017, President Trump signed several executive orders and other directives designed to delay, circumvent, or loosen certain requirements mandated by ACA. Concurrently, Congress considered legislation that would repeal or repeal and replace all or part of ACA. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation of certain taxes under the ACA have been signed into law. The Tax Cuts and Jobs Act of 2017, or Tax Act, includes a provision repealing, effective January 1, 2019, the tax-based shared responsibility payment imposed by ACA on certain individuals who fail to maintain qualifying health coverage for all or part of a year that is commonly referred to as the “individual mandate”. In addition, the 2020 federal spending package permanently eliminated, effective January 1, 2020, the ACA-mandated “Cadillac” tax on high-cost employer-sponsored health coverage and medical device tax and, effective January l, 2021, also eliminated the health insurer tax. The Bipartisan Budget Act of 67
2018, or the BBA, among other things, amends the ACA, effective January 1, 2019, to increase from 50 percent to 70 percent the point-of-sale discount that is owed by pharmaceutical manufacturers who participate in Medicare Part D and close the coverage gap in most Medicare drug plans, commonly referred to as the “donut hole”. On December 14, 2018, a Texas U.S. District Court Judge ruled that the ACA is unconstitutional in its entirety because the “individual mandate” was repealed by Congress as part of the Tax Act. Additionally, on December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that the individual mandate was unconstitutional and remanded the case back to the District Court to determine whether the remaining provisions of the ACA are invalid as well. The U.S. Supreme Court is currently reviewing this case, but it is unknown when a decision will be reached. Although the U.S. Supreme Court has yet ruled on the constitutionality of the ACA, on January 28, 2021, President Biden issued an executive order to initiate a special enrollment period from February 15, 2021 through May 15, 2021 for purposes of obtaining health insurance coverage through the ACA marketplace. The executive order also instructs certain governmental agencies to review and reconsider their existing policies and rules that limit access to healthcare, including among others, reexamining Medicaid demonstration projects and waiver programs that include work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the ACA. It is unclear how the Supreme Court ruling, other such litigation, and the healthcare reform measures will impact the ACA and our business.Other legislative changes have also been proposed and adopted since the ACA was enacted. For example, the Budget Control Act of 2011 resulted in aggregate reductions in Medicare payments to providers of up to two percent per fiscal year, starting in 2013 and, due to subsequent legislative amendments to the statute, including the BBA, will remain in effect through 2030 unless additional Congressional action is taken. However, COVID-19 relief support legislation suspended the 2% Medicare sequester from May 1, 2020 through March 31, 2021. In addition, the American Taxpayer Relief Act of 2012, among other things, reduced Medicare payments to several types of providers and increased the statute of limitations period for the government to recover overpayments to providers from three to five years. Such laws, and others that may affect our business that have been recently enacted or may in the future be enacted, may result in additional reductions in Medicare and other healthcare funding. Also, there has been heightened governmental scrutiny recently in the U.S. over pharmaceutical pricing practices in light of the rising cost of prescription drugs and biologics. Such scrutiny has resulted in several recent Congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, bring more transparency to product pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for products. At the federal level, the Trump administration used several means to propose or implement drug pricing reform, including through federal budget proposals, executive orders and policy initiatives. For example, on July 24, 2020 and September 13, 2020, the Trump administration announced several executive orders related to prescription drug pricing that attempt to implement several of the administration’s proposals. The FDA also released a final rule, effective November 30, 2020, implementing a portion of the importation executive order providing guidance for states to build and submit importation plans for drugs from Canada. Further, on November 20, 2020, HHS finalized a regulation removing safe harbor protection for price reductions from pharmaceutical manufacturers to plan sponsors under Part D, either directly or through pharmacy benefit managers, unless the price reduction is required by law. The implementation of the rule has been delayed by the Biden administration from January 1, 2022 to January 1, 2023 in response to ongoing litigation. The rule also creates a new safe harbor for price reductions reflected at the point-of-sale, as well as a new safe harbor for certain fixed fee arrangements between pharmacy benefit managers and manufacturers, the implementation of which have also been delayed pending review by the Biden administration until March 22, 2021. On November 20, 2020, CMS issued an interim final rule implementing President Trump’s Most Favored Nation executive order, which would tie Medicare Part B payments for certain physician-administered drugs to the lowest price paid in other economically advanced countries, effective January 1, 2021. On December 28, 2020, the United States District Court in Northern California issued a nationwide preliminary injunction against implementation of the interim final rule. However, it is unclear whether the Biden administration will work to reverse these measures or pursue similar policy initiatives. At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, and restrictions on certain product access. In some cases, such legislation and regulations have been designed to encourage importation from other countries and bulk purchasing.An expansion in the government’s role in the U.S. healthcare industry may cause general downward pressure on the prices of prescription drug products, lower reimbursements for providers, and reduced product utilization, any of which 68
could adversely affect our business and results of operations. Moreover, there has been heightened governmental scrutiny in the United States of pharmaceutical pricing practices in light of the rising cost of prescription drugs and biologics. Such scrutiny has resulted in several recent congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, bring more transparency to product pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for products. We cannot know what form any such new legislation may take or the market’s perception of how such legislation would affect us. Any reduction in reimbursement from government programs may result in a similar reduction in payments from private payors. The implementation of cost containment measures or other healthcare reforms may prevent our potential royalty providers from being able to generate revenue, attain profitability, develop, or commercialize our current product candidates in which we have an ownership or royalty interest. We and our potential milestone and royalty providers are subject to various state and federal healthcare-related laws and regulations that may impact the commercialization of our product candidates for which we possess milestone or royalty rights or could subject us to significant fines and penalties.Our operations may be directly or indirectly subject to various state and federal healthcare laws, including the federal Anti-Kickback Statute, the federal False Claims Act and state and federal data privacy and security laws. These laws may impact, among other things, the commercial operations for any of our product candidates that may be approved for commercial sale.The federal Anti-Kickback Statute prohibits, among other things, persons and entities from knowingly and willfully soliciting, offering, receiving or providing any remuneration, directly or indirectly, in cash or in kind, in exchange for or to induce either the referral of an individual for, or the furnishing or arranging for the purchase, lease, or order of a good or service for which payment may be made under a federal healthcare program, such as the Medicare and Medicaid programs. The ACA modified the federal Anti-Kickback Statute’s intent requirement so that a person or entity no longer needs to have actual knowledge of the statute or the specific intent to violate it to have committed a violation. In addition, several courts have interpreted the statute’s intent requirement to mean that if any one purpose of an arrangement involving remuneration is to induce referrals of federal healthcare covered business, the statute has been violated. The Anti-Kickback Statute is broad and prohibits many arrangements and practices that are lawful in businesses outside of the healthcare industry. The federal false claims laws, including the False Claims Act, and civil monetary penalties laws prohibit, among other things, persons and entities from knowingly filing, or causing to be filed, a false claim to, or the knowing use of false statements to obtain payment from the federal government. Certain suits filed under the False Claims Act, known as “qui tam” actions, can be brought by any individual on behalf of the government and such individual, commonly known as a “whistleblower,” may share in any amounts paid by the entity to the government in fines or settlement. The filing of qui tam actions has caused a number of pharmaceutical, medical device and other healthcare companies to have to defend and/or settle a False Claims Act action. The Federal Health Insurance Portability and Accountability Act of 1996 (“HIPAA”) created new federal criminal statutes that prohibit, among other things, executing a scheme to defraud any healthcare benefit program, including a private payor, or falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of, or payment for, health care benefits, items or services. HIPAA, as amended by the Health Information Technology and Clinical Health Act, and its implementing regulations, also imposes certain requirements relating to the privacy, security and transmission of individually identifiable health information by entities subject to the law, such as certain healthcare providers, health plans, and healthcare clearinghouses as well as their respective business associates that perform certain functions or activities that involve the use or disclosure of protected health information on their behalf. Many states also have adopted laws similar to each of the federal laws described above, some of which apply to healthcare items or services reimbursed by any source, not only federal healthcare programs, such as the Medicare and Medicaid programs. In addition, some states have laws that require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the applicable compliance guidance promulgated by the 69
| ● | imposition of government controls; |
| ● | export license requirements; |
| ● | political or economic instability; |
| ● | trade restrictions; |
| ● | changes in tariffs; |
| ● | restrictions on repatriating profits; |
| ● | exchange rate fluctuations; and |
| ● | withholding and other taxation. |

General Risk Factors Our share price may be volatile, and there may not be an active trading market for our common stock, Series A Preferred Stock or depositary shares representing interests in our Series B Preferred Stock.*There can be no assurance that the market price of our common stock will not decline below its present market price. Additionally, there may not be an active trading market for our common stock, Series A Preferred Stock or depositary shares representing interests in our Series B Preferred Stock. The market prices of biotechnology companies have been and are likely to continue to be highly volatile. Fluctuations in our operating results and general market conditions for biotechnology stocks could have a significant impact on the volatility of our stock price or the existence of an active trading market for our common stock, Series A Preferred Stock or depositary shares representing interests in our Series B Preferred Stock. We have experienced significant volatility in the price of our common stock. From January 1, 2021, through May 3, 2021, the share price of our common stock has ranged from a high of $44.50 to a low of $30.52. Additionally, we have two significant holders of our stock that could affect the liquidity of our stock and have a significant negative impact on our stock price if the holders were to quickly sell their ownership positions.Our results of operations and liquidity needs could be materially negatively affected by market fluctuations or an economic downturn.Our results of operations could be materially negatively affected by economic conditions generally, both in the United States and elsewhere around the world. Concerns over inflation, energy costs, geopolitical issues, the availability and cost of credit, and the U.S. financial markets have in the past contributed to, and may continue in the future contribute to, increased volatility and diminished expectations for the economy and the markets. Domestic and international equity markets periodically experience heightened volatility and turmoil. These events may have an adverse effect on us. In the event of a market downturn, our results of operations could be adversely affected by those factors in many ways, including making it more difficult for us to raise funds if necessary, and our stock price may decline.We have issued equity securities, and may issue additional equity securities from time to time, that materially and adversely affect the price of our common stock, including our Series X preferred stock, Series A Preferred Stock and depositary shares representing interests in our Series B Preferred Stock.*We expect that significant additional capital will be needed in the future to continue our planned operations. To the extent we raise additional capital by issuing equity securities, our stockholders may experience substantial dilution. We may sell common stock, convertible securities or other equity securities in one or more transactions at prices and in such a manner as we determine from time to time, including pursuant to our 2018 ATM Agreement, as amended. If we sell common stock, convertible securities or other equity securities in more than one transaction, investors may be materially diluted by subsequent sales. These sales may also result in material dilution to our existing stockholders, and new investors could gain rights superior to our existing stockholders. If we issue additional equity securities, the price of our common stock may be materially and adversely affected.As of March 31, 2021, there were 5,003 shares of Series X preferred stock issued and outstanding. Each share of Series X preferred stock is convertible into 1,000 shares of registered common stock. The total number of shares of common stock issuable upon conversion of all issued Series X preferred stock would be 5,003,000 shares. Each share is convertible at the option of the holder at any time, provided that the holder will be prohibited from converting into common stock if, as a result of such conversion, the holder, together with its affiliates, would beneficially own a number of shares above a conversion blocker, which was initially set at 19.99% of our total common stock then issued and outstanding immediately following the conversion of such shares. A holder of Series X preferred shares may elect to increase or decrease the conversion blocker above or below 19.99% on 61 days’ notice, provided the conversion blocker does not exceed the limits under Nasdaq Marketplace Rule 5635(b), to the extent then applicable. If holders of our Series X convertible preferred stock elect to convert their preferred shares into common stock such conversion would dilute our currently outstanding common stock both in number and in earnings per share. BVF (and its affiliates), as current holders of all shares of our Series X preferred stock, would, if they converted all such shares to common stock, obtain majority voting control of the Company. In February 2020, Biotechnology Value Fund, L.P. (“BVF”), the holders of Series Y convertible preferred shares, elected to increase the beneficial ownership limitation to 50% and on April 15, 2020, BVF 71
| ● | require certain procedures to be followed and time periods to be met for any stockholder to propose matters to be considered at annual meetings of stockholders, including nominating directors for election at those meetings; and |
| ● | authorize our Board of Directors to issue up to 1,000,000 shares of preferred stock without stockholder approval and to set the rights, preferences and other designations, including voting rights, of those shares as the Board of Directors may determine. |

stockholders to approve transactions that they may deem to be in their best interests, and could make it considerably more difficult for a potential acquirer to replace management.As a public company in the United States, we are subject to the Sarbanes-Oxley Act. We have determined our disclosure controls and procedures and our internal control over financial reporting are effective. We can provide no assurance that we will, at all times, in the future be able to report that our internal controls over financial reporting are effective.Companies that file reports with the SEC, including us, are subject to the requirements of Section 404 of the Sarbanes-Oxley Act of 2002 (“SOX”). Section 404 requires management to establish and maintain a system of internal control over financial reporting, and annual reports on Form 10-K filed under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), must contain a report from management assessing the effectiveness of our internal control over financial reporting. Ensuring we have adequate internal financial and accounting controls and procedures in place to produce accurate financial statements on a timely basis is a time-consuming effort that needs to be re-evaluated frequently. Failure on our part to have effective internal financial and accounting controls would cause our financial reporting to be unreliable, could have a material adverse effect on our business, operating results, and financial condition, and could cause the trading price of our common stock to fall.Our ability to use our net operating loss carry-forwards and other tax attributes will be substantially limited by Section 382 of the U.S. Internal Revenue Code.Under the federal income tax law, federal net operating losses incurred in 2018 and in future years may be carried forward indefinitely, but the deductibility of such federal net operating losses is limited. It is uncertain if and to what extent various states will conform to the federal tax law. In addition, Section 382 of the U.S. Internal Revenue Code of 1986, as amended, and corresponding provisions of state law, generally limit the ability of a corporation that undergoes an “ownership change” to utilize its net operating loss carry-forwards (“NOLs”) and certain other tax attributes against any taxable income in taxable periods after the ownership change. The amount of taxable income in each taxable year after the ownership change that may be offset by pre-change NOLs and certain other pre-change tax attributes is generally equal to the product of (a) the fair market value of the corporation’s outstanding shares (or, in the case of a foreign corporation, the fair market value of items treated as connected with the conduct of a trade or business in the United States) immediately prior to the ownership change and (b) the long-term tax exempt rate (i.e., a rate of interest established by the U.S. Internal Revenue Service that fluctuates from month to month). In general, an “ownership change” occurs whenever the percentage of the shares of a corporation owned, directly or indirectly, by “5-percent shareholders” (within the meaning of Section 382 of the Internal Revenue Code) increases by more than 50 percentage points over the lowest percentage of the shares of such corporation owned, directly or indirectly, by such “5-percent shareholders” at any time over the preceding three years.Based on an analysis under Section 382 of the Internal Revenue Code (which subjects the amount of pre-change NOLs and certain other pre-change tax attributes that can be utilized to an annual limitation), we experienced ownership changes in 2009 and 2012, which substantially limit the future use of our pre-change NOLs and certain other pre-change tax attributes per year. In February 2017, we completed an equity financing for net proceeds of $24.8 million which triggered an additional ownership change under Section 382 that significantly impacted the availability of our tax attributes against future income. Further, due to the existence of a net unrealized built-in loss at the ownership change date, Section 382 further limits our ability to fully utilize the tax deductions associated with certain of our assets, including depreciation and amortization deductions recognized during the 60-month period following the ownership change ending in 2022. Although these deductions will occur in the post-change period, Section 382 treats the deductions as pre-change losses subject to the annual 382 limitation. As of March 31, 2021, we have excluded the NOLs and research and development credits that will expire as a result of the annual limitations. To the extent that we do not utilize our carry-forwards within the applicable statutory carry-forward periods, either because of Section 382 limitations or the lack of sufficient taxable income, the carry-forwards will also expire unused.73
​The 2017 tax reform law, as modified by 2020 tax legislation, and possible future changes in tax laws or regulations could adversely affect our business and financial condition.On December 22, 2017, President Trump signed into law comprehensive tax legislation (the “Tax Cuts and Jobs Act”) that significantly revised the Internal Revenue Code of 1986, as amended (the “Code”). Future guidance from the U.S. Internal Revenue Service and other tax authorities with respect to the Tax Cuts and Jobs Act may affect us, and certain aspects of the Tax Cuts and Jobs Act could be repealed or modified in future legislation. For example, on March 27, 2020, the CARES Act was enacted, which includes changes to the tax provisions that benefit business entities and makes certain technical corrections to the Tax Cuts and Jobs Act. On June 29, 2020, California Assembly Bill 85 (AB 85) was signed into law, which suspends the use of California net operating losses and limits the use of California research tax credits for tax years beginning in 2020 and before 2023. Changes in corporate tax rates, the realization of net deferred tax assets relating to our U.S. operations, the taxation of foreign earnings, and the deductibility of expenses under the Tax Cuts and Jobs Act, the CARES Act, or future tax reform legislation could have a material impact on the value of our deferred tax assets, could result in significant one-time charges in the current or future taxable years, and could increase our future U.S. tax expense. The foregoing items, as well as any other future changes in tax laws, could have a material adverse effect on our business, cash flow, financial condition, or results of operations. In addition, it is uncertain if and to what extent various states will conform to the Tax Cuts and Jobs Act, the CARES Act, or any newly enacted federal tax legislation.Stockholder and private lawsuits, and potential similar or related lawsuits, could result in substantial damages, divert management’s time and attention from our business, and have a material adverse effect on our results of operations.Securities-related class action and stockholder derivative litigation has often been brought against companies, including many biotechnology companies, which experience volatility in the market price of their securities. This risk is especially relevant for us because biotechnology and biopharmaceutical companies often experience significant stock price volatility in connection with their product development programs.It is possible that suits will be filed, or allegations received from stockholders, naming us and/or our officers and directors as defendants. These potential lawsuits are subject to inherent uncertainties, and the actual defense and disposition costs will depend upon many unknown factors. The outcome of these lawsuits is uncertain. We could be forced to expend significant resources in the defense of these suits, and we may not prevail. In addition, we may incur substantial legal fees and costs in connection with these lawsuits. It is possible that we could, in the future, incur judgments or enter into settlements of claims for monetary damages. A decision adverse to our interests on these actions could result in the payment of substantial damages, or possibly fines, and could have a material adverse effect on our cash flow, results of operations and financial position.Monitoring, initiating and defending against legal actions, including any currently pending litigation, are time-consuming for our management, are likely to be expensive and may detract from our ability to fully focus our internal resources on our business activities. The outcome of litigation is always uncertain, and in some cases could include judgments against us that require us to pay damages, enjoin us from certain activities, or otherwise affect our legal or contractual rights, which could have a significant adverse effect on our business. In addition, the inherent uncertainty of any future litigation could lead to increased volatility in our stock price and a decrease in the value of an investment in our common stock.
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
On February 3, 2021, we issued 4,917 shares of our common stock to a warrant holder upon full exercise of the February 2016 common stock warrants held by Torreya Partners LLC on a cashless basis. In issuing these shares, we relied on an exemption from the registration requirements provided by Section 3(a)(9)of the Securities Act of 1933.
ITEM 3. DEFAULTS UPON SENIOR SECURITIES
None.
74
ITEM 4. MINE SAFETY DISCLOSURES
Not applicable.
ITEM 5. OTHER INFORMATION
None.
​
75
ITEM 6. EXHIBITS
| ​ | ​ | ​ | ​ | Incorporation By Reference |
| ExhibitNumber | Exhibit Description | Form | SEC File No. | Exhibit | Filing Date |
| 3.1 | Certificate of Incorporation of XOMA Corporation | 8-K | 000-14710 | 3.1 | 01/03/2012 |
| 3.2 | Certificate of Amendment of Certificate of Incorporation of XOMA Corporation | 8-K | 000-14710 | 3.1 | 05/31/2012 |
| 3.3 | ​ | Certificate of Amendment of Amended Certificate of Incorporation of XOMA Corporation | ​ | 8-K | ​ | 000-14710 | ​ | 3.1 | ​ | 05/28/2014 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 3.4 | ​ | Certificate of Amendment to the Amended Certificate of Incorporation of XOMA Corporation | ​ | 8-K | ​ | 000-14710 | ​ | 3.1 | ​ | 10/18/2016 |
| 3.5 | ​ | Certificate of Designation of Preferences, Rights and Limitations of Series X Convertible Preferred Stock | ​ | 8-K | ​ | 000-14710 | ​ | 3.1 | ​ | 02/16/2017 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 3.6 | ​ | Certificate of Designation of Preferences, Rights and Limitations of 8.625% Series A Cumulative Perpetual Preferred Stock | ​ | 8-K | ​ | 000-14710 | ​ | 3.1 | ​ | 12/11/2020 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 3.7 | ​ | Certificate of Designation of Preferences, Rights and Limitations of 8.375% Series B Cumulative Perpetual Preferred Stock | ​ | 8-K | ​ | 000-39801 | ​ | 3.1 | ​ | 04/08/2021 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 3.8 | By-laws of XOMA Corporation | 8-K | 000-14710 | 3.2 | 01/03/2012 |
| 4.1 | Reference is made to Exhibits 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7 and 3.8 | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 4.2 | ​ | Specimen of Common Stock Certificate | ​ | 8-K | ​ | 000-14710 | ​ | 4.1 | ​ | 01/03/2012 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 4.3 | ​ | Deposit Agreement, dated effective April 9, 2021, by and among XOMA Corporation, American Stock Transfer & Trust Company, LLC, as depositary, and the holders of the depositary receipts issued thereunder | ​ | 8-K | ​ | 000-39801 | ​ | 4.1 | ​ | 04/08/2021 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 4.4 | Form of Warrant (February 2016 Warrant) | 10-Q | 000-14710 | 4.9 | 05/04/2016 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 4.5 | ​ | Form of Warrant (May 2018 Warrant) | ​ | 10-Q | ​ | 000-14710 | ​ | 4.6 | ​ | 08/07/2018 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 4.6 | ​ | Form of Warrant (March 2019 Warrant) | ​ | 10-Q | ​ | 000-14710 | ​ | 4.7 | ​ | 05/06/2019 |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 10.1+# | ​ | Royalty Purchase Agreement dated March 22, 2021 between XOMA (US) LLC and Viracta Therapeutics, Inc. | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 31.1+ | ​ | Certification of Chief Executive Officer, as required by Rule 13a-14(a) or Rule 15d-14(a) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 31.2+ | Certification of Chief Financial Officer, as required by Rule 13a-14(a) or Rule 15d-14(a) |
| 32.1+ | Certification of Chief Executive Officer and Chief Financial Officer, as required by Rule 13a-14(b) or Rule 15d-14(b) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350)(1) |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 101.INS+ | ​ | Inline XBRL Instance Document | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 101.SCH+ | Inline XBRL Schema Document |

76
| ​ | ​ | ​ | ​ | Incorporation By Reference |
| ExhibitNumber | Exhibit Description | Form | SEC File No. | Exhibit | Filing Date |
| 101.CAL+ | Inline XBRL Calculation Linkbase Document |
| 101.DEF+ | Inline XBRL Definition Linkbase Document |
| 101.LAB+ | Inline XBRL Labels Linkbase Document |
| 101.PRE+ | Inline XBRL Presentation Linkbase Document |
| ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| 104 | ​ | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
| + | Filed herewith |
| # | Portions of this exhibit (indicated by asterisks) have been omitted as the Registrant has determined that (i) the omitted information is not material and (ii) the omitted material is of the type that the Registrant treats as private or confidential. |
| (1) | This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Registrant under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing. |

| XOMA Corporation |
| Date: May 6, 2021 | By: | /s/ JAMES R. NEAL |
| James R. NealChief Executive Officer (principal executive officer) and Director |
| ​ | ​ | ​ |
| Date: May 6, 2021 | By: | /s/ THOMAS BURNS |
| Thomas BurnsSenior Vice President, Finance and Chief Financial Officer(principal financial and principal accounting officer) |


Question: What is the change in the company's net equity from 2020 to 2021 after adjusting for the stock-based compensation expenses and preferred stock dividends in thousands of dollars?

Python solution:
def solution():
     #Define variables name and value
    equity_2021 = 81720 
    equity_2020 = 41119 
    compensation_expense_2021 = 2898
    compensation_expense_2020 = 1788 
    dividends_2021 = 707

    #Do math calculation to get the answer
    adjusted_equity_2021 = equity_2021 + compensation_expense_2021 + dividends_2021
    adjusted_equity_2020 = equity_2020 + compensation_expense_2020
    equity_change = adjusted_equity_2021 - adjusted_equity_2020
    return equity_change


Answer: 42418