# EDGAR Filing Document

**Accession Number:** 0001637219
**File Stem:** 0001209191-23-002620
**Filing Date:** 2023-1
**Character Count:** 6881
**Document Hash:** 73acb959e3a8d6b8eb3d0ab87c3c84dd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001209191-23-002620.hdr.sgml**: 20230109

**ACCESSION NUMBER**: 0001209191-23-002620

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230106

**FILED AS OF DATE**: 20230109

**DATE AS OF CHANGE**: 20230109

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Tomasi Adam
- **CENTRAL INDEX KEY:** 0001637219

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38582
- **FILM NUMBER:** 23519216

**MAIL ADDRESS:**
- **STREET 1:** ZS PHARMA, INC.
- **STREET 2:** 508 WRANGLER DRIVE, SUITE 100
- **CITY:** COPPELL
- **STATE:** TX
- **ZIP:** 75019
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Allakos Inc.
- **CENTRAL INDEX KEY:** 0001564824
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **IRS NUMBER:** 454798831
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 825 INDUSTRIAL ROAD
- **STREET 2:** SUITE 500
- **CITY:** SAN CARLOS
- **STATE:** CA
- **ZIP:** 94070
- **BUSINESS PHONE:** 650-597-5002

**MAIL ADDRESS:**
- **STREET 1:** 825 INDUSTRIAL ROAD
- **STREET 2:** SUITE 500
- **CITY:** SAN CARLOS
- **STATE:** CA
- **ZIP:** 94070

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Tomasi Adam<br><sub>(Last) (First) (Middle)</sub><br>825 INDUSTRIAL ROAD, SUITE 500<br><sub>(Street)</sub><br>SAN CARLOS, CA 94070<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-01-06 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_President_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Allakos Inc. [ ALLK ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2023-01-06 |  | A |  | 195997<sup>(1)</sup> | A | 0.00<sup>(2)</sup> | 744734 | D |  |
| Common Stock |  |  |  |  |  |  |  | 3953<sup>(3)</sup> | I | See footnote<sup>(4)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Option (Right to buy) | $7.20 | 2023-01-06 |  | A |  | 300471 |  | <sup>(5)</sup> | 2033-01-06 | Common Stock | 300471 | $0.00 | 300471 | D |  |

---

### Footnotes:

(1) Mr. Tomasi was awarded 195,997 restricted stock units ("RSUs") pursuant to the Company's 2018 Equity Incentive Plan on January 6, 2023, of which, 25% will vest on March 1, 2024, the first anniversary of the grant date, and the remainder of the RSUs will vest in 12 equal installments on each three month anniversary of the grant date, subject to the Reporting Person continuing as a service provider through each such date.

(2) Each RSU represents a contingent right to receive one share of Common Stock of the Issuer.

(3) Includes 3,953 shares received as a pro-rata in-kind distribution of Common Stock of the Issuer by Alta Partners Management VIII, LLC (APM VIII), without consideration, to the Reporting Person as a non-managing member of APM VIII.

(4) The shares are held by Mr. Tomasi and Carrie Tomasi, as Trustees of the Tomasi Living Trust dated July 14, 2017.

(5) The option was granted on January 6, 2023. The option vests as to one-fourth of the shares on January 6, 2024, and one forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

**Signature:** /s/ H. Baird Radford, III, by power of attorney  
**Date:** 2023-01-09

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**