# EDGAR Filing Document

**Accession Number:** 0001534525
**File Stem:** 0001683168-25-005983
**Filing Date:** 2025-8
**Character Count:** 83432
**Document Hash:** 06922f829fd80d5a8db46c0d78466f12
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001683168-25-005983.hdr.sgml**: 20250812

**ACCESSION NUMBER**: 0001683168-25-005983

**CONFORMED SUBMISSION TYPE**: 10-Q

**PUBLIC DOCUMENT COUNT**: 44

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250812

**DATE AS OF CHANGE**: 20250812

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Xenetic Biosciences, Inc.
- **CENTRAL INDEX KEY:** 0001534525
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 452952962
- **STATE OF INCORPORATION:** NV
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37937
- **FILM NUMBER:** 251207702

**BUSINESS ADDRESS:**
- **STREET 1:** 945 CONCORD ST.
- **CITY:** FRAMINGHAM
- **STATE:** MA
- **ZIP:** 01701
- **BUSINESS PHONE:** 781-778-7720

**MAIL ADDRESS:**
- **STREET 1:** 945 CONCORD ST.
- **CITY:** FRAMINGHAM
- **STATE:** MA
- **ZIP:** 01701

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** General Sales & Leasing, Inc.
- **DATE OF NAME CHANGE:** 20130227

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GENERAL AIRCRAFT INC.
- **DATE OF NAME CHANGE:** 20111108

?xml version='1.0' encoding='ASCII'? XENETIC BIOSCIENCES, INC. 10-Q

[**Table of Contents**](#toc)

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, DC 20549**

**FORM 10-Q**

☒ **QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the quarterly period ended June 30, 2025**

**or**

☐ **TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the transition period from &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**

**Commission File Number: 001-37937**

**XENETIC BIOSCIENCES, INC.**

**(Exact name of registrant as specified in its charter)**

---

| | |
|:---|:---|
| **Nevada**<br> **(State or other jurisdiction of**<br> **incorporation or organization)** | **45-2952962**<br> **(IRS Employer**<br> **Identification No.)** |

---

**945 Concord Street**

**Framingham, Massachusetts 01701**

**(Address of principal executive offices and zip code)**

**781-778-7720**

**(Registrant's telephone number, including area code)**

**Securities registered pursuant to Section 12(b) of the Act:**

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| Common Stock, $0.001 par value per share | XBIO | The Nasdaq Stock Market |

---

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days:&nbsp;&nbsp;&nbsp;&nbsp;Yes ☒&nbsp;&nbsp;&nbsp;&nbsp;No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files):&nbsp;&nbsp;&nbsp;&nbsp;Yes ☒&nbsp;&nbsp;&nbsp;&nbsp;No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act:

Large accelerated filer ☐ Accelerated filer ☐ <br> Non-accelerated filer ☒ Smaller reporting company ☒ <br> Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act):&nbsp;&nbsp;&nbsp;&nbsp;Yes ☐&nbsp;&nbsp;&nbsp;&nbsp;No ☒

As of August 7, 2025, the number of outstanding shares of the registrant's common stock was 1,542,139.

**XENETIC BIOSCIENCES, INC.** 

**FORM 10-Q** 

**QUARTERLY PERIOD ENDED JUNE 30, 2025**

---

| | | |
|:---|:---|:---|
| **PART I** | [**FINANCIAL INFORMATION**](#q2_001) |  |
| Item 1 | [Condensed Consolidated Financial Statements:](#q2_002) | 3 |
|  | [Condensed Consolidated Balance Sheets as of June 30, 2025 (Unaudited) and December 31, 2024](#q2_003) | 3 |
|  | [Condensed Consolidated Statements of Operations (Unaudited) for the three and six months ended June 30, 2025 and 2024](#q2_004) | 4 |
|  | [Condensed Consolidated Statements of Stockholders' Equity (Unaudited) for the three and six months ended June 30, 2025 and 2024](#q2_005) | 5 |
|  | [Condensed Consolidated Statements of Cash Flows (Unaudited) for the six months ended June 30, 2025 and 2024](#q2_006) | 7 |
|  | [Notes to Condensed Consolidated Financial Statements (Unaudited)](#q2_007) | 8 |
| Item 2 | [Management's Discussion and Analysis of Financial Condition and Results of Operations](#q2_008) | 14 |
| Item 3 | [Quantitative and Qualitative Disclosures About Market Risk](#q2_009) | 20 |
| Item 4 | [Controls and Procedures](#q2_010) | 20 |
| **PART II** | [**OTHER INFORMATION**](#q2_011) |  |
| Item 1 | [Legal Proceedings](#q2_012) | 21 |
| Item 1A | [Risk Factors](#q2_013) | 21 |
| Item 2 | [Unregistered Sales of Equity Securities and Use of Proceeds](#q2_014) | 21 |
| Item 3 | [Defaults Upon Senior Securities](#q2_015) | 21 |
| Item 4 | [Mine Safety Disclosures](#q2_016) | 21 |
| Item 5 | [Other Information](#q2_017) | 21 |
| Item 6 | [Exhibits](#q2_018) | 21 |
| [Signatures](#q2_019) | [Signatures](#q2_019) | 22 |

---

**PART I – FINANCIAL INFORMATION**

**ITEM 1 – FINANCIAL STATEMENTS**

**XENETIC BIOSCIENCES, INC.**

**CONDENSED CONSOLIDATED BALANCE SHEETS**

---

| | | |
|:---|:---|:---|
|  | **June 30,**<br> **2025** | **December 31,**<br> **2024** |
|  | **(Unaudited)** |  |
| ASSETS |  |  |
| Current assets: |  |  |
| &nbsp;&nbsp;&nbsp;Cash | $4779846 | $6165568 |
| &nbsp;&nbsp;&nbsp;Prepaid expenses and other | 573854 | 421954 |
| Total current assets | 5353700 | 6587522 |
| Other assets | – | 313921 |
| Total assets | $5353700 | $6901443 |
| LIABILITIES AND STOCKHOLDERS' EQUITY |  |  |
| Current liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;Accounts payable | $346828 | $283615 |
| &nbsp;&nbsp;&nbsp;Accrued expenses and other current liabilities | 556602 | 610648 |
| Total current liabilities | 903430 | 894263 |
| Total liabilities | 903430 | 894263 |
| Commitments and contingencies | **–** |  |
| Stockholders' equity: |  |  |
| &nbsp;&nbsp;&nbsp;Preferred stock, 10,000,000 shares authorized |  |  |
| &nbsp;&nbsp;&nbsp;Series B, $0.001 par value: 1,804,394 shares issued and outstanding as of June 30, 2025 and December 31, 2024 | 1804 | 1804 |
| &nbsp;&nbsp;&nbsp;Common stock, $0.001 par value; 10,000,000 shares authorized as of June 30, 2025 and December 31, 2024; 1,544,840 shares issued as of June 30, 2025 and December 31, 2024; 1,542,139 shares outstanding as of June 30, 2025 and December 31, 2024 | 1545 | 1545 |
| &nbsp;&nbsp;&nbsp;Additional paid in capital | 208260682 | 208225748 |
| &nbsp;&nbsp;&nbsp;Accumulated deficit | (198786315) | (197194471) |
| &nbsp;&nbsp;&nbsp;Accumulated other comprehensive income | 253734 | 253734 |
| &nbsp;&nbsp;&nbsp;Treasury stock | (5281180) | (5281180) |
| Total stockholders' equity | 4450270 | 6007180 |
| Total liabilities and stockholders' equity | $5353700 | $6901443 |

---

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

**XENETIC BIOSCIENCES, INC.**

**CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS**

**(Unaudited)**

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **THREE MONTHS ENDED <br> JUNE 30,** | **THREE MONTHS ENDED <br> JUNE 30,** | **SIX MONTHS ENDED <br> JUNE 30,** | **SIX MONTHS ENDED <br> JUNE 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Revenue: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Royalty revenue | $589897 | $726404 | $1183158 | $1237221 |
| Total revenue | 589897 | 726404 | 1183158 | 1237221 |
| Operating costs and expenses: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Research and development | (656557) | (933771) | (1535586) | (1878092) |
| &nbsp;&nbsp;&nbsp;General and administrative | (657752) | (1130029) | (1314393) | (1964939) |
| Total operating costs and expenses | (1314309) | (2063800) | (2849979) | (3843031) |
| Loss from operations | (724412) | (1337396) | (1666821) | (2605810) |
| Other income (expense): |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Other income (expense) | 1477 | (21) | 1555 | 31 |
| &nbsp;&nbsp;&nbsp;Interest income, net | 34232 | 63447 | 73422 | 136696 |
| Total other income | 35709 | 63426 | 74977 | 136727 |
| Net loss | $(688703) | $(1273970) | $(1591844) | $(2469083) |
| Basic and diluted net loss per share | $(0.45) | $(0.83) | $(1.03) | $(1.60) |
| Weighted-average shares of common stock outstanding, basic and diluted | 1542139 | 1540799 | 1542139 | 1540741 |

---

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

**XENETIC BIOSCIENCES, INC.**

**CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY**

**(Unaudited)**

**<u>THREE MONTHS ENDED JUNE 30, 2025</u>**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Preferred Stock** | **Preferred Stock** | **Common Stock** | **Common Stock** | | | | | |
|  | **Number of<br> Shares** | **Par Value<br> ($0.001)** | **Number of<br> Shares** | **Par Value<br> ($0.001)** |<br>**Additional Paid in<br> Capital** |<br>**Accumulated<br> Deficit** |<br>**Accumulated Other Comprehensive<br> Income** |<br>**Treasury<br> Stock** |<br>**Total Stockholders'<br> Equity** |
| **Balance as of April 1, 2025** | 1804394 | $1804 | 1544840 | $1545 | $208244999 | $(198097612) | $253734 | $(5281180) | $5123290 |
| Share-based expense |  |  |  |  | 15683 |  |  |  | 15683 |
| Net loss | – | – | – | – | – | (688703) | – | – | (688703) |
| **Balance as of June 30, 2025** | 1804394 | $1804 | 1544840 | $1545 | $208260682 | $(198786315) | $253734 | $(5281180) | $4450270 |

---

**<u>SIX MONTHS ENDED JUNE 30, 2025</u>**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Preferred Stock** | **Preferred Stock** | **Common Stock** | **Common Stock** | | | | | |
|  | **Number of<br> Shares** | **Par Value<br> ($0.001)** | **Number of<br> Shares** | **Par Value<br> ($0.001)** |<br>**Additional Paid in<br> Capital** |<br>**Accumulated<br> Deficit** |<br>**Accumulated Other Comprehensive<br> Income** |<br>**Treasury<br> Stock** |<br>**Total Stockholders'<br> Equity** |
| **Balance as of January 1, 2025** | 1804394 | $1804 | 1544840 | $1545 | $208225748 | $(197194471) | $253734 | $(5281180) | $6007180 |
| Share-based expense |  |  |  |  | 34934 |  |  |  | 34934 |
| Net loss | – | – | – | – | – | (1591844) | – | – | (1591844) |
| **Balance as of June 30, 2025** | 1804394 | $1804 | 1544840 | $1545 | $208260682 | $(198786315) | $253734 | $(5281180) | $4450270 |

---

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

**XENETIC BIOSCIENCES, INC.**

**CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY**

**(Unaudited)**

**<u>THREE MONTHS ENDED JUNE 30, 2024</u>**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Preferred Stock** | **Preferred Stock** | **Common Stock** | **Common Stock** | | | | | |
|  | **Number of<br> Shares** | **Par Value<br> ($0.001)** | **Number of<br> Shares** | **Par Value<br> ($0.001)** |<br>**Additional Paid in<br> Capital** |<br>**Accumulated<br> Deficit** |<br>**Accumulated Other Comprehensive<br> Income** |<br>**Treasury<br> Stock** |<br>**Total Stockholders'<br> Equity** |
| **Balance as of April 1, 2024** | 1804394 | $1804 | 1543385 | $1544 | $208131009 | $(194429309) | $253734 | $(5281180) | $8677602 |
| Issuance of common stock in connection with restricted stock |  |  | 417 |  |  |  |  |  |  |
| Share-based expense |  |  |  |  | 42096 |  |  |  | 42096 |
| Net loss | – | – | – | – | – | (1273970) | – | – | (1273970) |
| **Balance as of June 30, 2024** | 1804394 | $1804 | 1543802 | $1544 | $208173105 | $(195703279) | $253734 | $(5281180) | $7445728 |

---

**<u>SIX MONTHS ENDED JUNE 30, 2024</u>**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Preferred Stock** | **Preferred Stock** | **Common Stock** | **Common Stock** | | | | | |
|  | **Number of<br> Shares** | **Par Value<br> ($0.001)** | **Number of<br> Shares** | **Par Value<br> ($0.001)** |<br>**Additional Paid in<br> Capital** |<br>**Accumulated<br> Deficit** |<br>**Accumulated Other Comprehensive<br> Income** |<br>**Treasury<br> Stock** |<br>**Total Stockholders'<br> Equity** |
| **Balance as of January 1, 2024** | 1804394 | $1804 | 1543385 | $1544 | $208053935 | $(193234196) | $253734 | $(5281180) | $9795641 |
| Issuance of common stock in connection with restricted stock |  |  | 417 |  |  |  |  |  |  |
| Share-based expense |  |  |  |  | 119170 |  |  |  | 119170 |
| Net loss | – | – | – | – | – | (2469083) | – | – | (2469083) |
| **Balance as of June 30, 202**4 | 1804394 | $1804 | 1543802 | $1544 | $208173105 | $(195703279) | $253734 | $(5281180) | $7445728 |

---

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

**XENETIC BIOSCIENCES, INC.**

**CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS**

**(Unaudited)**

---

| | | |
|:---|:---|:---|
|  | **Six Months Ended June 30,** | **Six Months Ended June 30,** |
|  | **2025** | **2024** |
| **CASH FLOWS FROM OPERATING ACTIVITIES:** |  |  |
| Net loss | $(1591844) | $(2469083) |
| Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;Share-based expense | 34934 | 119170 |
| &nbsp;&nbsp;&nbsp;Changes in operating assets and liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepaid expenses and other | (151900) | (112553) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other assets | 313921 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable, accrued expenses and other liabilities | 9167 | 778017 |
| Net cash used in operating activities | (1385722) | (1684449) |
| Net change in cash | (1385722) | (1684449) |
| Cash at beginning of period | 6165568 | 8983046 |
| Cash at end of period | $4779846 | $7298597 |
| **SUPPLEMENTAL CASH FLOW INFORMATION:** |  |  |
| &nbsp;&nbsp;&nbsp;Cash paid for interest | $– | $– |

---

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

**XENETIC BIOSCIENCES, INC.** 

**NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS** 

**(Unaudited)**

&nbsp;&nbsp;&nbsp;&nbsp;**1.** **The Company**

***Background***

 **

Xenetic Biosciences, Inc. ("Xenetic" or the "Company"), incorporated in the state of Nevada and based in Framingham, Massachusetts, is a biopharmaceutical company focused on advancing innovative immune-oncology technologies addressing hard to treat cancers. The Company's proprietary Deoxyribonuclease ("DNase") technology is designed to improve outcomes of existing treatments, including immunotherapies, by targeting neutrophil extracellular traps ("NETs"), which are involved in cancer progression. Xenetic is currently focused on advancing its systemic DNase program into the clinic as an adjunctive therapy for pancreatic carcinoma and locally advanced or metastatic solid tumors.

As used in this Quarterly Report on Form 10-Q ("Quarterly Report"), unless otherwise indicated, all references herein to "Xenetic," the "Company," "we" or "us" refer to Xenetic Biosciences, Inc. and its wholly-owned subsidiaries.

The Company, directly or indirectly, through its wholly-owned subsidiaries, Hesperix S.A. ("Hesperix") and Xenetic Biosciences (U.K.) Limited ("Xenetic UK"), and the wholly-owned subsidiaries of Xenetic UK, Lipoxen Technologies Limited ("Lipoxen"), Xenetic Bioscience, Incorporated and SymbioTec, GmbH ("SymbioTec"), own various United States ("U.S.") federal trademark registrations and applications along with unregistered trademarks and service marks, including but not limited to XCART™, OncoHist™, PolyXen<sup>®</sup>, ErepoXen™, and ImuXen™, which may be used throughout this Quarterly Report. All other company and product names may be trademarks of the respective companies with which they are associated.

 **

***Going Concern and Management's Plan***

 **

Management evaluates whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the Company's ability to continue as a going concern within one year after the date that the financial statements are issued. The Company has incurred substantial losses since its inception and expects to continue to incur operating losses in the near-term. The Company believes that its existing resources will be adequate to fund the Company's operations for a period of at least twelve months from the date of the issuance of these financial statements. However, the Company anticipates it will need additional capital in the long-term to pursue its business initiatives. While the Company believes it has access to capital resources through possible public or private equity offerings, debt financings, corporate collaborations, related party funding, or other means to continue as a going concern, the terms, timing and extent of any future financing will depend upon several factors, including the achievement of progress in its product development programs, its ability to identify and enter into licensing or other strategic arrangements, its continued listing on the Nasdaq Stock Market, and factors related to financial, economic, geo-political, industry and market conditions, many of which are beyond its control. The capital markets for the biotech industry can be highly volatile, which make the terms, timing and extent of any future financing uncertain.

&nbsp;&nbsp;&nbsp;&nbsp;**2.** **Risks and Uncertainties** 

 ****

***Impact of Global Conflicts on Operations***

The short and long-term implications of geopolitical events and global conflicts, including those in Ukraine and the Middle East are difficult to predict at this time. The imposition of current and future sanctions and counter sanctions may have an adverse effect on the economic markets generally and could impact our business, financial condition, and results of operations.

&nbsp;&nbsp;&nbsp;&nbsp;**3.** **Summary of Significant Accounting Policies**

***Preparation of Interim Financial Statements***

 **

The accompanying condensed consolidated interim financial statements were prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC") and, in the opinion of management, include all normal and recurring adjustments necessary to present fairly the results of the interim periods shown. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted pursuant to such SEC rules and regulations. Management believes that the disclosures made are adequate to make the information presented not misleading. The results for the interim periods are not necessarily indicative of results for the full year. The condensed consolidated financial statements contained herein should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2024 filed with the SEC on March 18, 2025, and amended on April 29, 2025 and May 13, 2025.

***Principles of Consolidation***

 ****

The condensed consolidated financial statements of the Company include the accounts of Hesperix, Xenetic UK and Xenetic UK's wholly-owned subsidiaries: Lipoxen, Xenetic Bioscience, Incorporated, and SymbioTec. Certain of the Company's subsidiaries require guarantees of support from Xenetic. While all intercompany balances and transactions have been eliminated in consolidation, the Company has $0.2 million of cash collateralizing these guarantees.

***Segment Information***

The Company is principally engaged in pre-clinical research and development activities to advance its DNase technology. Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision maker ("CODM"), who is the Company's Chief Executive Officer, in making decisions on how to allocate resources and assess performance. The Company views its operations and manages its business as a single operating segment. The Company's measure of segment profit or loss is net loss. The CODM manages and allocates to the operations of the Company on a total company basis. Managing and allocating resources on a consolidated basis enables the CODM to assess the overall level of resources available and how best to deploy these resources across functions, therapeutic areas and research and development projects that are in line with the Company's long-term company-wide strategic goals. Consistent with this decision-making process, the CODM uses consolidated financial information for purposes of evaluating performance, forecasting future period financial results, allocating resources and setting incentive targets. The following table is representative of the significant expense categories regularly provided to the CODM when managing the Company's single reporting segment. A reconciliation to the condensed consolidated net loss for the three and six months ended June 30, 2025 and 2024 is as follows:

---

| | | |
|:---|:---|:---|
|  | **Three Months Ended June 30,** | **Three Months Ended June 30,** |
|  | **2025** | **2024** |
| Revenue | $589897 | $726404 |
| Program expenses<sup>(1)</sup> | 645021 | 474850 |
| Non-program expenses<sup>(2)</sup> | 486895 | 533307 |
| Salaries and wages | 166710 | 1013547 |
| Other segment items<sup>(3)</sup> | (20026) | (21330) |
| Net loss | $(688703) | $(1273970) |

---

---

| | | |
|:---|:---|:---|
|  | **Six Months Ended June 30,** | **Six Months Ended June 30,** |
|  | **2025** | **2024** |
| Revenue | $1183158 | $1237221 |
| Program expenses<sup>(1)</sup> | 1520819 | 1220522 |
| Non-program expenses<sup>(2)</sup> | 909410 | 981453 |
| Salaries and wages | 384816 | 1521886 |
| Other segment items<sup>(3)</sup> | (40043) | (17557) |
| Net loss | $(1591844) | $(2469083) |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Includes external research and development.

(2) Includes information technology, legal, intellectual property and other general and administrative expenses.

(3) Includes stock-based compensation expense, interest income and other income (expense).

***Basic and Diluted Net Loss per Share***

The Company computes basic net loss per share by dividing net loss applicable to common stockholders by the weighted-average number of shares of the Company's common stock outstanding during the period. The Company computes diluted net loss per share after giving consideration to the dilutive effect of stock options that are outstanding during the period, except where such non-participating securities would be anti-dilutive.

Basic and diluted net loss per share are the same in each respective three or six month period due to the Company's net loss position in each period. Potentially dilutive, non-participating securities have not been included in the calculations of diluted net loss per share, as their inclusion would be anti-dilutive.

&nbsp;&nbsp;&nbsp;&nbsp;**4.** **Significant Strategic Collaborations** 

***Takeda Pharmaceutical Co. Ltd. (together with its wholly-owned subsidiaries, "Takeda")***

In October 2017, the Company granted to Takeda the right to grant a non-exclusive sublicense to certain patents related to the Company's PolyXen technology that were previously exclusively licensed to Takeda in connection with products related to the treatment of blood and bleeding disorders. Royalty payments of approximately $0.6 million and $1.2 million were recorded as revenue by the Company during the three and six months ended June 30, 2025, respectively, and approximately $0.7 million and $1.2 million were recorded as revenue by the Company during the three and six months ended June 30, 2024, respectively. These payments are based on single digit royalties on net sales of certain covered products. The Company's policy is to recognize royalty payments as revenue when they are reliably measurable, which is upon receipt of reports from Takeda. The Company receives these reports in the quarter subsequent to the actual sublicensee sales. At the time the revenue was received, there were no remaining performance obligations and all other revenue recognition criteria were met.

***Catalent Pharma Solutions LLC ("Catalent")***

On June 30, 2022, the Company entered into a Statement of Work (the "SOW") with Catalent to outline the general scope of work, timeline, and pricing pursuant to which Catalent will provide certain services to the Company to perform cGMP manufacturing of the Company's recombinant protein, Human DNase I. The parties agreed to enter into a Master Services Agreement that will contain terms and conditions to govern the project contemplated by the SOW and that will supersede the addendum to the SOW containing Catalent's standard terms and conditions. The Company has paid Catalent approximately $2.7 million through June 30, 2025, of which approximately $0.3 million has been recognized as an advance payment and is included in prepaid expenses and other current assets as of June 30, 2025 , and approximately $0.2 million has been recognized as a liability and is included in accounts payable and accrued expenses and other current liabilities as of June 30, 2025. As of December 31, 2024, approximately $28,000 was recognized as an advance payment and is included in prepaid expenses and other current assets and approximately $0.1 million had been recognized as a liability and is included in accrued expenses and other current liabilities. In addition, approximately $0.3 million was recognized within other assets as of December 31, 2024.

***Scripps Research Institute ("Scripps Research")***

On March 17, 2023, the Company and Scripps Research entered into a Research Funding and Option Agreement (the "Agreement"), pursuant to which the Company had agreed to provide Scripps Research an aggregate of up to $0.9 million to fund research relating to advancing the pre-clinical development of the Company's DNase technology. Under the Agreement, the Company has the option to acquire a worldwide exclusive license to Scripps Research's rights in the Technology or Patent Rights (as defined in the Agreement), as well as a non-exclusive, royalty-free, non-transferrable license to make and use TSRI Technology (as defined in the Agreement) solely for the Company's internal research purposes during the performance of the research program contemplated by the Agreement. During the second quarter of 2024, the Company amended the Agreement to extend the term to October 31, 2024 with no additional funding required.

On November 1, 2024, the Company and Scripps Research entered into a Second Amendment to the Agreement (the "Second Amendment") extending the term of the Agreement for an additional twelve (12) month period and to provide Scripps Research additional funding in an aggregate amount of up to approximately $0.4 million to fund continuing research. The research funding is payable by the Company to Scripps Research on a monthly basis in accordance with a negotiated budget, which provides for an initial payment of approximately $65,000 on the date of the Second Amendment and subsequent monthly payments of approximately $65,000 over a 5-month period. All other terms of the Agreement remain unchanged.

Effective May 1, 2025, the Company and Scripps Research entered into a Third Amendment to the Agreement (the "Third Amendment"), pursuant to which the Company amended the Agreement in order to expand the services to be performed under the Agreement and to provide Scripps Research additional funding in an aggregate amount of up to approximately $0.4 million to fund continuing research. The research funding is payable by the Company to Scripps Research on a monthly basis in accordance with a negotiated budget, which provides for an initial payment of approximately $70,000 on the date of the Third Amendment and subsequent monthly payments of approximately $70,000 over a 5-month period. All other terms of the Agreement remain unchanged.

The Company has paid Scripps Research approximately $1.4 million under the Agreement through June 30, 2025, of which approximately $0.1 million was accrued as of June 30, 2025. As of December 31, 2024, approximately $0.4 million was recognized as an advance payment and was included in prepaid expenses and other current assets. There were no advance payments as of June 30, 2025.

***University of Virginia ("UVA")***

On December 21, 2023, the Company entered into a Research Funding and Material Transfer Agreement with UVA (the "UVA Agreement") to advance the development of our systemic DNase program. Under the terms of the UVA Agreement, in addition to advancing our existing intellectual property, the Company has an option to acquire an exclusive license to any new intellectual property arising from the DNase research program. Allan Tsung, MD, a member of the Company's Scientific Advisory Board and Chair of the Department of Surgery at the UVA School of Medicine, will oversee the research conducted under the UVA Agreement. In November 2024, the Company and UVA entered into an amendment to extend the UVA Agreement through December 2025. Pursuant to the UVA agreement, as amended, UVA will build on the preclinical and translational data produced to date and continue to investigate combinations of DNase I with immunotherapies in models of primary and metastatic colorectal cancer. The Company paid UVA approximately $0.4 million under the UVA Agreement through June 30, 2025, of which $0.1 million had been recognized as an advance payment and was included within prepaid expenses and other current assets as of December 31, 2024. There were no advance payments as of June 30, 2025.

***Other Agreements***

The Company has also entered into various research, development, license and supply agreements with Serum Institute of India ("Serum Institute"), PJSC Pharmsynthez ("Pharmsynthez") and SynBio LLC ("SynBio"), a wholly owned subsidiary of Pharmsynthez. The Company and its collaborative partners continue to engage in research and development activities with no resultant commercial products through June 30, 2025. No amounts were recognized as revenue related to the Serum Institute, Pharmsynthez or SynBio agreements during the three and six months ended June 30, 2025 and 2024, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;**5.** **Fair Value Measurements** 

Accounting Standards Codification Topic 820, *Fair Value Measurement,* defines fair value as the price that would be received to sell an asset or be paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement. Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 utilizes quoted market prices in markets that are not active, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. Level 3 inputs are unobservable inputs for the asset or liability in which there is little, if any, market activity for the asset or liability at the measurement date. As of June 30, 2025 and December 31, 2024, the carrying amounts of the Company's financial instruments approximates fair value due to their short maturities. There were no financial instruments classified as Level 3 in the fair value hierarchy during the three and six months ended June 30, 2025 and 2024.

&nbsp;&nbsp;&nbsp;&nbsp;**6.** **Stockholders' Equity** 

***Warrants***

The Company had warrants to purchase approximately 462,963 shares of the Company's common stock (the "Series A Warrants") outstanding as of December 31, 2024. The Series A Warrants were immediately exercisable at a price of $33.00 per share of common stock. No Series A Warrants were exercised or forfeited during the three and six months ended June 30, 2025 and 2024. These warrants expired in February 2025 and, as a result, no Series A Warrants were outstanding as of June 30, 2025.

The Company also has warrants to purchase approximately 800 shares of the Company's common stock outstanding as of both June 30, 2025 and December 31, 2024. These warrants have an exercise price of $29.09 per share of common stock and expire on July 3, 2026. None of these warrants were exercised or forfeited during the three and six months ended June 30, 2025 and 2024.

&nbsp;&nbsp;&nbsp;&nbsp;**7.** **Share-Based Expense** 

Total share-based expense related to stock options and restricted stock units ("RSUs") was approximately $16,000 and $42,000 for the three months ended June 30, 2025 and 2024, respectively, and approximately $35,000 and $0.1 million for the six months ended June 30, 2025 and 2024, respectively.

Share-based expense is classified in the condensed consolidated statements of operations as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **Three Months Ended June 30,** | **Three Months Ended June 30,** | **Six Months Ended June 30,** | **Six Months Ended June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Research and development expenses | $– | $(3804) | $– | $11433 |
| General and administrative expenses | 15683 | 45900 | 34934 | 107737 |
|  | $15683 | $42096 | $34934 | $119170 |

---

 **

***Employee Stock Options and RSU's***

 **

No stock option awards to purchase shares of common stock were granted during the three and six months ended June 30, 2025. During the three and six months ended June 30, 2024, 20,000 stock options to purchase shares of common stock were granted by the Company. No RSUs were granted during each of the three and six months ended June 30, 2025 and 2024. The Company recognized a total of approximately $16,000 and $42,000 of share-based expense related to employee stock options during the three months ended June 30, 2025 and 2024, respectively, and approximately $35,000 and $0.1 million during the six months ended June 30, 2025 and 2024, respectively. No employee stock options or RSUs were exercised during the three and six months ended June 30, 2025. The Company issued 417 shares of common stock during the three and six months ended June 30, 2024 related to RSUs representing all RSUs outstanding. No employee stock options were exercised during the three and six months ended June 30, 2024. During the three and six months ended June 30, 2025, options to purchase 64,062 shares and 89,878 shares of common stock expired. During the three and six months ended June 30, 2024, stock options to purchase 11,667 shares of common stock were forfeited.

***Non-Employee Stock Options***

 ****

There were no non-employee stock options granted or exercised during each of the three and six months ended June 30, 2025 and 2024. No non-employee stock option grants expired during each of the three and six months ended June 30, 2025 and 2024. The Company did not recognize any expense related to non-employee stock options during each of the three and six months ended June 30, 2025 and 2024.

&nbsp;&nbsp;&nbsp;&nbsp;**8.** **Income Taxes** 

During each of the three and six months ended June 30, 2025 and 2024, there was no provision for income taxes as the Company incurred losses during both periods. Deferred tax assets and liabilities reflect the net tax effect of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The Company records a valuation allowance against its deferred tax assets as the Company believes it is more likely than not the deferred tax assets will not be realized. The valuation allowance against deferred tax assets was approximately $41.6 million and $41.1 million as of June 30, 2025 and December 31, 2024, respectively.

As of June 30, 2025 and December 31, 2024, the Company did not record any unrecognized tax positions.

&nbsp;&nbsp;&nbsp;&nbsp;**9.** **Related Party Transactions** 

The Company has entered into various research, development, license and supply agreements with PeriNess Ltd. ("PeriNess"), Serum Institute and Pharmsynthez, each a related party whose relationship has not materially changed from that disclosed in the Company's Annual Report on Form 10-K for the year ended December 31, 2024 filed with the SEC on March 18, 2025, as amended on April 29, 2025 and May 13, 2025. The Company paid PeriNess approximately $55,000 during the six months ended June 30, 2025. As of June 30, 2025 and December 31, 2024, approximately $50,000 was recorded as an advanced payment and included in Prepaid expenses and other. In addition, approximately $22,000 and $8,000 was reflected in accounts payable as of June 30, 2025 and December 31, 2024, respectively. No amounts were incurred in connection with agreements with Serum Institute and Pharmsynthez during the six months ended June 30, 2025 and 2024.

During the first quarter of 2025, the Company entered into a Consulting Agreement with Dr. Dmitry Genkin, Chairman of our Board of Directors, to provide consulting services to the Company's DNase-based oncology program. This agreement was effective January 1, 2025 and the Company paid Dr. Genkin approximately $0.1 million and $0.2 million during the three and six months ended June 30, 2025, of which approximately $30,000 was reflected within accounts payable as of June 30, 2025. Dr. Genkin does not receive any fees for his service as a member of the Board of Directors.

**ITEM 2 – MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS**

**CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS**

This report contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and Section 27A of the Securities Act of 1933, as amended. All statements contained in this Quarterly Report other than statements of historical fact, including statements regarding our future results of operations and financial position, our business strategy and plans, future revenues, projected costs, prospects and our objectives for future results of operations and financial position, our business strategy and plans, future revenues, projected costs, prospects and our objectives for future operations, are forward-looking statements.

These forward-looking statements include, but are not limited to, statements concerning: anticipated effects of geopolitical events, including the conflicts in Ukraine and the Middle East and associated sanctions imposed by the United States ("U.S.") and other countries in response; our plans to develop our proposed drug candidates; the uncertainty surrounding government actions, as well as any changes to existing or newly proposed legislation that may affect the healthcare regulatory space; our expectations regarding the nature, timing and extent of collaboration arrangements; the expected results pursuant to collaboration arrangements, including the receipts of royalty and other future payments that may arise pursuant to collaboration arrangements; the outcome of our plans to obtain regulatory approval of our drug candidates; the outcome of our plans for the commercialization of our drug candidates; our plans to advance innovative immune-oncology technologies addressing difficult to treat oncology indications; expectations regarding our Deoxyribonuclease ("DNase") technology, such as regarding the DNase technology being in development for the treatment of solid tumors and being aimed at improving outcomes of existing treatments, including immunotherapies, by targeting neutrophil extracellular traps ("NETs"); our expectations to focus our efforts and resources on advancing the DNase technology into the clinic as an adjunctive therapy for pancreatic carcinoma and locally advanced or metastatic solid tumors; and our expectations regarding our PolyXen<sup>®</sup> platform and any partnerships with respect thereto.

In some cases, these statements may be identified by terminology such as "may," "will," "would," "could," "should," "expect," "plan," "anticipate," "believe," "estimate," "seek," "approximately," "intend," "predict," "potential," "projects," "upcoming", "opportunity", "target" or "continue," or the negative of such terms and other comparable terminology. Although we believe that the expectations reflected in the forward-looking statements contained herein are reasonable, we cannot guarantee future results, the levels of activity, performance or achievements. These statements involve known and unknown risks and uncertainties that may cause our or our industry's results, levels of activity, performance or achievements to be materially different from those expressed or implied by forward-looking statements.

The Management's Discussion and Analysis of Financial Condition and Results of Operations (the "MD&A") should be read together with our condensed consolidated financial statements and related notes included elsewhere in this Quarterly Report. This Quarterly Report, including the MD&A, contains trend analysis and other forward-looking statements. Any statements in this Quarterly Report that are not statements of historical facts are forward-looking statements. These forward-looking statements made herein are based on our current expectations, involve a number of risks and uncertainties and should not be considered as guarantees of future performance.

Some factors that could cause actual results to differ materially include without limitation:

· uncertainty of the expected financial performance of the Company;

· failure to realize the anticipated potential of the DNase technology;

· our ability to implement our business strategy;

· our failure to maintain compliance with the continued listing requirements of the Nasdaq Stock Market;

· our need to raise additional working capital in the future for the purpose of further developing our pipeline and to continue as a going concern;

· our ability to finance our business;

· our ability to successfully execute, manage and integrate key acquisitions and mergers;

· product development and commercialization risks, including our ability to successfully develop the DNase technology;

· the impact of adverse safety outcomes and clinical trial results for our therapies;

· our ability to secure and maintain a manufacturer for our technologies;

· the impact of new therapies and new uses of existing therapies on the competitive environment;

· our ability to successfully commercialize our current and future drug candidates;

· our ability to achieve milestone and other payments associated with our current and future co-development collaborations and strategic arrangements;

· our reliance on consultants, advisors, vendors and business partners to conduct work on our behalf;

· the impact of new technologies on our drug candidates and our competition;

· changes in laws or regulations of governmental agencies;

· interruptions or cancellation of existing contracts;

· impact of competitive products and pricing;

· product demand and market acceptance and risks;

· the presence of competitors with greater financial resources;

· continued availability of supplies or materials used in manufacturing at the current prices;

· the ability of management to execute plans and motivate personnel in the execution of those plans;

· our ability to attract and retain key personnel;

· costs, diversion and other adverse effects of the actions of activist shareholders;

· adverse publicity related to our products or the Company itself;

· adverse claims relating to our intellectual property;

· the adoption of new, or changes in, accounting principles;

· the costs inherent with complying with statutes and regulations applicable to public reporting companies, such as the Sarbanes-Oxley Act of 2002;

· other new lines of business that the Company may enter in the future;

· general economic and business conditions, as well as inflationary trends and financial market instability or disruptions to the banking system due to bank failures;

· the impact of natural disasters or public health emergencies, such as the COVID-19 global pandemic, and geopolitical events, such as the conflicts in Ukraine and the Middle East, and related sanctions and other economic disruptions or concerns, on our financial condition and results of operations; and

· other factors set forth in the Risk Factors section of our Annual Report on Form 10-K and in subsequent filings with the Securities and Exchange Commission ("SEC").

These factors are not necessarily all of the important factors that could cause actual results to differ materially from those expressed in the forward-looking statements in this Quarterly Report. Other unknown or unpredictable factors also could have material adverse effects on our future results, including, but not limited to, those discussed in the section titled "Risk Factors." The forward-looking statements in this Quarterly Report are made only as of the date of this Quarterly Report, and we do not undertake any obligation to publicly update any forward-looking statements to reflect subsequent events or circumstances. We intend that all forward-looking statements be subject to the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995.

**BUSINESS OVERVIEW**

We are a biopharmaceutical company focused on advancing innovative immune-oncology technologies addressing difficult to treat cancers. Our proprietary DNase technology is designed to improve outcomes of existing treatments, including immunotherapies, by targeting NETs, which are involved in cancer progression. We are currently focused on advancing our systemic DNase program into the clinic as an adjunctive therapy for pancreatic carcinoma and locally advanced or metastatic solid tumors.

We incorporate our patented and proprietary technologies into drug candidates currently under development with biotechnology and pharmaceutical industry collaborators to create what we believe will be the next-generation biologic drugs with improved pharmacological properties over existing therapeutics. Our drug candidates have resulted from our research activities or that of our collaborators and are in the development stage. As a result, we continue to commit a significant amount of our resources to our research and development activities and anticipate continuing to do so for the near future. To date, none of our drug candidates have received regulatory marketing authorization or approval in the U.S. by the Food and Drug Administration nor in any other countries or territories by any applicable agencies. We are receiving ongoing royalties pursuant to a license of our legacy PolyXen technology to an industry partner. Although we hold a broad patent portfolio, the focus of our internal efforts during the six months ended June 30, 2025, was on the advancement of our DNase technology.

**Impact of the Global Events and Conflicts on Our Operations**

The short and long-term implications of geopolitical events and global conflicts, including those in Ukraine and the Middle East are difficult to predict at this time. The imposition of current and future sanctions and counter sanctions may have an adverse effect on the economic markets generally and could impact our business, financial condition, and results of operations.

**RESULTS OF OPERATIONS**

***Comparison of Quarter Ended June 30, 2025 and 2024***

 ****

The comparison of our historical results of operations for the fiscal quarter ended June 30, 2025 to the fiscal quarter ended June 30, 2024 is as follows:

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| | | | | |
|:---|:---|:---|:---|:---|
| **Description** | **Quarter Ended <br> June 30, 2025** | **Quarter Ended <br> June 30, 2024** | **Increase<br> (Decrease)** | **Percentage<br> Change** |
| Revenues: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Royalty revenue | $589897 | $726404 | $(136507) | (18.8) |
| Operating costs and expenses: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Research and development | (656557) | (933771) | (277214) | (29.7) |
| &nbsp;&nbsp;&nbsp;General and administrative | (657752) | (1130029) | (472277) | (41.8) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total operating costs and expenses | (1314309) | (2063800) | (749491) | (36.3) |
| Loss from operations | (724412) | (1337396) | (612984) | (45.8) |
| Other income (expense): |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Other income (expense) | 1477 | (21) | 1498 | 7133.3 |
| &nbsp;&nbsp;&nbsp;Interest income, net | 34232 | 63447 | (29215) | (46.0) |
| Net loss | $(688703) | $(1273970) | $(585267) | (45.9) |

---

**Revenue**

Revenue for the three months ended June 30, 2025 decreased by approximately $0.1 million, or 18.8%, to approximately $0.6 million from approximately $0.7 million for the three months ended June 30, 2024. This decrease represented a decrease in royalty revenue related to our sublicense agreement with Takeda Pharmaceuticals Co. Ltd. ("Takeda") as compared to the same period in 2024 due to the timing of rebates.

**Research and Development Expenses**

Research & development ("R&D") expenses for the three months ended June 30, 2025 decreased by approximately $277,000, or 29.7%, to approximately $0.7 million from $0.9 million in the comparable quarter in 2024. The table below sets forth the R&D costs incurred by the Company by category of expense for the quarters ended June 30, 2025 and 2024:

---

| | | |
|:---|:---|:---|
| | **Quarter Ended,** | **Quarter Ended,** |
| <br>**Category of Expense** | **June 30, 2025** | **June 30, 2024** |
| Outside services and contract research organizations | $645021 | $474850 |
| Personnel costs |  | 415807 |
| Share-based expense |  | (3804) |
| Other | 11536 | 46918 |
| Total research and development expense | $656557 | $933771 |

---

The decrease in personnel costs during the second quarter of 2025 was related to certain severance and benefits expensed in connection with a separation agreement entered into during the second quarter of 2024 with our former Chief Scientific Officer. The increase in outside services and contract research organizations expense was primarily due to increased consulting costs and spending in connection with the commencement of exploratory studies during the three months ended June 30, 2025.

**General and Administrative Expenses**

General and administrative expenses for the three months ended June 30, 2025 decreased by approximately $472.000, or 41.8%, to approximately $0.7 million from approximately $1.1 million in the comparable quarter in 2024. The decrease was primarily due to certain severance and benefits expensed in connection with a separation agreement entered into during the second quarter of 2024 with our former Chief Executive Officer.

**Other Income (Expense)**

Other income was $1,477 for the three months ended June 30, 2025 compared to approximately $21 of other expense for the comparable quarter in 2024. This increase in other income was primarily related to favorable changes in foreign currency exchange rates during the three months ended June 30, 2025 as compared to the same period in 2024.

**Interest Income, net**

Interest income, net decreased to approximately $34,000 during the three months ended June 30, 2025 as compared to approximately $63,000 for the same period in the prior year. This decrease is primarily due to lower average invested funds during the three months ended June 30, 2025 as compared to the same period in 2024.

***Comparison of Six Months Ended June 30, 2025 and 2024***

 ****

The comparison of our historical results of operations for the six months ended June 30, 2025 to the six months ended June 30, 2024 is as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Description** | **Six Months<br> Ended <br> June 30,<br> 2025** | **Six Months<br> Ended <br> June 30, <br> 2024** | **Increase<br> (Decrease)** | **Percentage<br> Change** |
| Revenues: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Royalty revenue | $1183158 | $1237221 | $(54063) | (4.4) |
| Operating costs and expenses: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Research and development | (1535586) | (1878092) | (342506) | (18.2) |
| &nbsp;&nbsp;&nbsp;General and administrative | (1314393) | (1964939) | (650546) | (33.1) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total operating costs and expenses | (2849979) | (3843031) | (993052) | (25.8) |
| Loss from operations | (1666821) | (2605810) | (938989) | (36.0) |
| Other income (expense): |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Other income | 1555 | 31 | 1524 | 4916.1 |
| &nbsp;&nbsp;&nbsp;Interest income, net | 73422 | 136696 | (63274) | (46.3) |
| Net loss | $(1591844) | $(2469083) | $(877239) | (35.5) |

---

**Revenue**

Revenue for the six months ended June 30, 2025 decreased by approximately $54,000, or 4.4%, to approximately $1.2 million from approximately $1.2 million for the six months ended June 30, 2024. This decrease represented a decrease in royalty revenue related to our sublicense agreement with Takeda as compared to the same period in 2024 due to the timing of rebates.

**Research and Development Expenses**

R&D expenses for the six months ended June 30, 2025 decreased by approximately $343,000, or 18.2%, to approximately $1.5 million from approximately $1.9 million in the comparable period in 2024. The table below sets forth the R&D costs incurred by the Company by category of expense for the six months ended June 30, 2025 and 2024:

---

| | | |
|:---|:---|:---|
| | **Six Months Ended,** | **Six Months Ended,** |
| <br>**Category of Expense** | **June 30, 2025** | **June 30, 2024** |
| Outside services and contract research organizations | $1520819 | $1220522 |
| Personnel costs |  | 561612 |
| Share-based expense |  | 11433 |
| Other | 14767 | 84525 |
| Total research and development expense | $1535586 | $1878092 |

---

The decrease in personnel costs and share-based expense during the six months ended June 30, 2025 was related to certain severance and benefits expensed in connection with a separation agreement entered into during the second quarter of 2024 with our former Chief Scientific Officer. The increase in outside services and contract research organizations expense was primarily due to increased consulting costs and spending in connection with the commencement of exploratory studies during the six months ended June 30, 2025.

**General and Administrative Expenses**

General and administrative expenses for the six months ended June 30, 2025 decreased by approximately $0.7 million, or 33.1%, to approximately $1.3 million from approximately $2.0 million in the comparable period in 2024. The decrease was primarily due to certain severance and benefits expensed in connection with a separation agreement entered into during the second quarter of 2024 with our former Chief Executive Officer.

**Other Income**

Other income was $1,555 for the six months ended June 30, 2025 compared to approximately $31 for the comparable period in 2024. This increase in other income was primarily related to favorable changes in foreign currency exchange rates during the six months ended June 30, 2025 as compared to the same period in 2024.

**Interest Income** 

Interest income, net decreased to approximately $73,000 during the six months ended June 30, 2025 as compared to approximately $137,000 for the same period in the prior year. This decrease is primarily due to lower average invested funds during the six months ended June 30, 2025 as compared to the same period in 2024.

**Liquidity and Capital Resources**

We incurred a net loss of approximately $1.6 million for the six months ended June 30, 2025. We had an accumulated deficit of approximately $198.8 million at June 30, 2025, as compared to an accumulated deficit of approximately $197.2 million at December 31, 2024. Working capital was approximately $4.5 million at June 30, 2025, and approximately $5.7 million at December 31, 2024. During the six months ended June 30, 2024, our working capital decreased by approximately $1.2 million primarily due to our net loss for the six months ended June 30, 2025.

Our principal source of liquidity consists of cash. At June 30, 2025, we had approximately $4.8 million in cash and approximately $0.9 million in current liabilities. At December 31, 2024, we had approximately $6.2 million in cash and $0.9 million in current liabilities. We have historically relied upon sales of our equity securities to fund our operations.

We evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about our ability to continue as a going concern within one year after the date that the financial statements are issued. We have incurred substantial losses since our inception, and we expect to continue to incur operating losses in the near-term. We believe that our existing resources will be adequate to fund our operations for a period of at least twelve months from the date of the issuance of these financial statements. However, we anticipate we will need additional capital in the long-term to pursue our business initiatives. While we believe we have access to capital resources through possible public or private equity offerings, debt financings, corporate collaborations, related party funding, or other means to continue as a going concern, the terms, timing and extent of any future financing will depend upon several factors, including the achievement of progress in our clinical development programs, our ability to identify and enter into licensing or other strategic arrangements, our continued listing on the Nasdaq Stock Market, and factors related to financial, economic, geo-political, industry and market conditions, many of which are beyond our control. The capital markets for the biotech industry can be highly volatile, which make the terms, timing and extent of any future financing uncertain.

**Cash Flows from Operating Activities**

Cash flows used in operating activities for the six months ended June 30, 2025 totaled approximately $1.4 million, which was primarily due to our net loss for the period, partially offset by non-cash charges associated with share-based expense. The decrease in other assets was due to the reclassification of long-term assets to prepaid expenses and other current assets as of June 30, 2025. Cash flows used in operating activities for the six months ended June 30, 2024 totaled approximately $1.7 million, which was primarily due to our net loss for the period, partially offset by non-cash charges associated with share-based expense during the period.

**Cash Flows from Investing Activities**

There were no cash flows from investing activities for the six months ended June 30, 2025 and 2024.

**Cash Flow from Financing Activities**

There were no cash flows from financing activities for the six months ended June 30, 2025 and 2024.

**Contractual Obligations and Commitments**

As of June 30, 2025, there were no material changes in our contractual obligations and commitments from those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on March 18, 2025, as amended on April 29, 2025 and May 13, 2025.

**Off Balance Sheet Arrangements**

We do not have any off-balance sheet financing arrangements that have or are reasonably likely to have a current or future material effect on our financial condition, change in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources.

**Recent Accounting Standards**

See Note 3 in our Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on March 18, 2025, as amended on April 29, 2025 and May 13, 2025, for a discussion of recent accounting standards.

**Critical Accounting Estimates**

Our condensed consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles. The preparation of our condensed consolidated financial statements requires us to make estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, revenue, costs and expenses. We base our estimates and assumptions on historical experience and other factors that we believe to be reasonable under the circumstances. We evaluate our estimates and assumptions on an ongoing basis. The result of these evaluations forms the basis for making judgments about the carrying values of assets and liabilities and the reported amount of expenses that are not readily apparent from other sources. Because future events and their effects cannot be determined with certainty, actual results and outcomes may differ materially from our estimates, judgments and assumptions. There have been no material changes in our critical accounting estimates from those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on March 18, 2025, as amended on April 29, 2025 and May 13, 2025.

**ITEM 3 – QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK** 

We are not required to provide the information required by this Item because we are a "smaller reporting company" (as defined in Rule 12b-2 of the Exchange Act).

**ITEM 4 – CONTROLS AND PROCEDURES**

**Evaluation of Disclosure Controls and Procedures**

Our management, with the participation of our Interim Chief Executive Officer (principal executive officer) and Chief Financial Officer (principal financial officer), evaluated the effectiveness of our disclosure controls and procedures as defined in Rules 13a-15(e) or 15d-15(e) under the Exchange Act, as of the end of the period covered by this Quarterly Report.

Based on this evaluation, our management, including our Interim Chief Executive Officer and Chief Financial Officer, concluded that as of the end of the period covered by this Quarterly Report, our disclosure controls and procedures are designed at a reasonable assurance level and are effective to provide reasonable assurance that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to our management, including our Interim Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

**Changes in Internal Control over Financial Reporting**

There were no changes in our internal control over financial reporting that occurred during the period covered by this Quarterly Report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

**PART II – OTHER INFORMATION**

**ITEM 1 – LEGAL PROCEEDINGS**

We are not currently subject to any material legal proceedings, nor, to our knowledge, is any material legal proceeding threatened against us. From time to time, we may be a party to litigation and subject to claims incident to the ordinary course of business. Although the results of litigation and claims cannot be predicted with certainty, we currently believe that the final outcome of these ordinary course matters will not have a material adverse effect on our business. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

**ITEM 1A – RISK FACTORS**

There have been no material changes to the risk factors previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2024 filed with the SEC on March 18, 2025, as amended on April 29, 2025 and May 13, 2025.

**ITEM 2 – UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS**

None.

**ITEM 3 – DEFAULTS UPON SENIOR SECURITIES**

None.

**ITEM 4 – MINE SAFETY DISCLOSURES**

Not applicable.

**ITEM 5 – OTHER INFORMATION**

During the quarter ended June 30, 2025, no director or officer adopted or terminated any Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement, as each term is defined in Item 408(a) of Regulation S-K.

**ITEM 6 – EXHIBITS** 

The following exhibits are incorporated herein by reference or filed as part of this report.

---

| | |
|:---|:---|
| **EXHIBIT NUMBER** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**DESCRIPTION** |
| 10.1\* | [Third Amendment to Research Funding and Option Agreement, dated May 1, 2025, between Xenetic Biosciences, Inc. and the Scripps Research Institute.](xenetic_ex1001.htm) |
| 31.1\* | [Certification of James Parslow, Interim Principal Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](xenetic_ex3101.htm). |
| 31.2\* | [Certification of James Parslow, Principal Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](xenetic_ex3102.htm). |
| 32.1\*\* | [Certification of James Parslow, Interim Principal Executive Officer and Principal Financial Officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](xenetic_ex3201.htm). |
| 101\* | The following financial statements from the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2025, formatted in inline XBRL, include: (i) Condensed Consolidated Balance Sheets, (ii) Condensed Consolidated Statements of Operations, (iii) Condensed Consolidated Statements of Stockholders' Equity, (iv) Condensed Consolidated Statements of Cash Flows and (v) the Notes to the Condensed Consolidated Financial Statements. |
| 104\* | Cover Page Interactive Data File (formatted in inline XBRL and included in Exhibit 101). |
| \* | Filed herewith. |
| \*\* | Exhibit 32.1 is being furnished and shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such exhibits be deemed to be incorporated by reference in any registration statement or other document filed under the Securities Act of 1933, as amended or the Securities Exchange Act of 1934, as amended, except as otherwise stated in such filing. |

---

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  |  | **Xenetic Biosciences, Inc.** |
| August 12, 2025 | By: | /S/ JAMES PARSLOW |
|  |  | James Parslow<br> Interim Chief Executive Officer and Chief Financial Officer<br> (Principal Executive Officer, Principal Financial Officer and Principal Accounting Officer) |

---

## Exhibit 10.1

**EXHIBIT 10.1**

**CERTAIN INFORMATION IDENTIFIED IN THIS DOCUMENT, MARKED BY BRACKETS AND ASTERISKS ("[\*\*\*]"), HAS BEEN EXCLUDED PURSUANT TO ITEM 601(B)(10) OF REGULATION S-K UNDER THE SECURITIES ACT OF 1933, AS AMENDED, BECAUSE IT IS (I) NOT MATERIAL AND (II) WOULD LIKELY CAUSE COMPETITIVE HARM TO THE REGISTRANT IF PUBLICLY DISCLOSED.**

**THIRD AMENDMENT TO** 

**RESEARCH FUNDING AND OPTION AGREEMENT**

**This Third Amendment to that certain Research Funding and Option Agreement** (the "**Third Amendment**") is entered into as of *May 1*, *2025* (the "Third Amendment Effective Date") by and between **The Scripps Research Institute**, a California nonprofit public benefit corporation located at 10550 North Torrey Pines Road, La Jolla, California 92037 (**"TSRI"**), and **Xenetic Biosciences inc.**, a for-profit corporation located at *945 Concord Street, Framingham, Massachusetts 01701* (**"Sponsor"**).

**Recitals**

**Whereas,** TSRI and Sponsor entered into that certain Research Funding and Option Agreement dated *March 10, 2023*, and that certain First Amendment dated *June 1, 2024*, and that certain Second Amendment dated *November 1, 2024* (together the "Agreement");

**Whereas,** TSRI and Sponsor wish to amend the Agreement in the manner set forth in this Third Amendment to increase the 19<sup>th</sup> through the 24<sup>th</sup> payments made by Sponsor to TSRI.

**Agreement**

**Now Therefore,** in consideration of the mutual promises set forth, the parties hereto agree to the following amendment to the Agreement as set forth below in 1. herein:

**1.** **Payments.** The following payments are added to Section 2.4(a):

---

| | |
|:---|:---|
| 19<sup>th</sup> payment: $70,000.00 | Due: Effective Date of Third Amendment |
| 20<sup>th</sup> payment: $70,000.00 | Due: 1 month after Third Amendment Effective Date |
| 21<sup>st</sup> payment: $70,000.00 | Due: 2 months after Third Amendment Effective Date |
| 22<sup>nd</sup> payment: $70,000.00 | Due: 3 months after Third Amendment Effective Date |
| 23<sup>rd</sup> payment: $70,000.00 | Due: 4 months after Third Amendment Effective Date |
| 24<sup>th</sup> payment: $70,000.00 | Due: 5 months after Third Amendment Effective Date |

---

Page 1 of 3

**2.** **Research Program.** The Research Program shall include Exhibit A attached
to this Third Amendment.

**3.** **Full Force and Effect.** Except as specifically amended by this Third Amendment, the terms and conditions
of the Agreement shall remain in full force and effect.

**4.** **Counterparts.** This Third Amendment may be executed in two or more counterparts, each of which shall
be deemed an original, but all of which together shall constitute one and the same instrument.

**In Witness Whereof,** the parties have executed this Third Amendment as of the Third Amendment Effective Date.

---

| | |
|:---|:---|
| **The Scripps Research Institute** | **Sponsor** |
| By: <u>/s/ Laura Cheek</u> | By: <u>/s/ Jim Parslow</u> |
| Name: Laura Cheek | Name: Jim Parslow |
| Title: Director, Office of Sponsored Programs | Title: CFO |

---

Page 2 of 3

**EXHIBIT A**

**RESEARCH PROGRAM**

---

| | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | <br> **Month**  | **1**<br> **Nov-24** | **2**<br> **Dec-24** | **3**<br> **Jan-25** | **4**<br> **Feb-25** | **5**<br> **Mar-25** | **6**<br> **Apr-25** | **7**<br> **May-25** | **8**<br> **Jun-25** | **9**<br> **Jul-25** | **10**<br> **Aug-25** | **11**<br> **Sep-25** | **12**<br> **Oct-25** |
| [\*\*\*]<br>|  |  |  |  |  |  |  |  |  |  |  |  |  |
| **[\*\*\*]** |  | **-** | **-** | **-** | **-** | **-** | **-** | **-** |  |  |  |  |  |
| **[\*\*\*]** |  |  |  |  | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** |
| **[\*\*\*]** |  | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** |  |  |  |  |
| **[\*\*\*]** |  |  |  |  | **-** | **-** | **-** | **-** | **-** | **-** |  |  |  |
| **[\*\*\*]** |  |  |  |  |  |  |  |  | **-** | **-** | **-** | **-** | **-** |
| **[\*\*\*]**<br>|  |  |  |  |  |  |  |  |  |  |  |  |  |
| **[\*\*\*]**<br>|  | **-** | **-** | **-** |  |  |  |  |  |  |  |  |  |
| **[\*\*\*]** |  |  |  |  | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** |
| **[\*\*\*]** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| **[\*\*\*]** |  |  |  | **-** | **-** | **-** | **-** | **-** | **-** |  |  |  |  |
| **[\*\*\*]** |  |  |  |  | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** |
| **[\*\*\*]** |  |  |  |  |  | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** |
| **[\*\*\*]** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| **[\*\*\*]** |  |  |  |  |  | **-** | **-** | **-** |  |  |  |  |  |
| **[\*\*\*]** |  |  |  | **-** | **-** | **-** | **-** | **-** |  |  |  |  |  |
| **[\*\*\*]** |  |  |  |  | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** | **-** |
| **[\*\*\*]** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| **[\*\*\*]** |  |  |  |  |  |  |  | **-** | **-** |  |  |  |  |
| **[\*\*\*]** |  |  |  |  |  |  |  |  |  | **-** | **-** | **-** | **-** |
| **[\*\*\*]** |  |  |  |  |  |  |  |  |  | **-** | **-** | **-** | **-** |
| Payments |  | <u>$65000</u> | <u>$65000</u> | <u>$65000</u> | <u>$65000</u> | <u>$65000</u> | <u>$65000</u> | <u>$70000</u> | <u>$70000</u> | <u>$70000</u> | <u>$70000</u> | <u>$70000</u> | <u>$70000</u> |

---

Page 3 of 3

## Exhibit 31.1

**EXHIBIT 31.1**

I, James Parslow, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this Quarterly Report on Form 10-Q of Xenetic Biosciences, Inc.;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 12, 2025

By: <u>/s/ JAMES PARSLOW</u> 

James Parslow<br> Interim Chief Executive Officer<br> (Principal Executive Officer)

## Exhibit 31.2

**EXHIBIT 31.2**

I, James Parslow, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this Quarterly Report on Form 10-Q of Xenetic Biosciences, Inc.;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 12, 2025

By: <u>/s/ JAMES PARSLOW</u> 

James Parslow<br> Chief Financial Officer<br> (Principal Financial and Principal Accounting Officer)

## Exhibit 32.1

**EXHIBIT 32.1**

**CERTIFICATION**

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, (the "Exchange Act") and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), James Parslow, Interim Chief Executive Officer and Chief Financial Officer of Xenetic Biosciences, Inc. (the "Company") hereby certifies that, to the best of his knowledge:

The Company's Quarterly Report on Form 10-Q for the period ended June 30, 2025, to which this Certification is attached as Exhibit 32.1 (the "Periodic Report"), fully complies with the requirements of Section 13(a) or Section 15(d) of the Exchange Act; and

The information contained in the Periodic Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 12, 2025

**In Witness Whereof**, the undersigned has set his hand hereto as of the 12th day of August 2025.

---

| |
|:---|
| <u>/s/James Parslow</u> |
| James Parslow |
| Interim Chief Executive Officer and Chief Financial Officer<br> (Principal Executive Officer and Principal Financial Officer) |

---

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 Xenetic Biosciences, Inc. 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.