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person · Reporting owner

Byam Rebecca

Disclosed activity across 1 company

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43836
SEC CIK
0001866256

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
HCW Biologics Inc.HCWB · Entity 8172Chief Financial OfficerMay 22, 2026May 27, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

HCW Biologics Inc.

Report date May 22, 2026 · Filed May 27, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect57,245 Reported balance After 2026-05-22 transaction · row 1
1 source row

Row 1 · 2026-05-22 · Purchase · Acquired 14,235 · Balance 57,245

Common Stock Purchase WarrantSEC Table II · derivative / convertible security · Conversion / exercise price $1.28 · Expires 2031-11-22Direct18,466 Reported balance After 2026-05-22 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-05-22 · Purchase · Acquired 14,235 · Balance 18,466

F1: The reporting person purchased these shares directly from the issuer in a private placement, which purchase is exempt from Section 16(b) in accordance with Rule 16b-3(d) promulgated under the Securities Exchange Act of 1934, as amended.

Filing footnotes · ownership attribution and instrument terms

F1: The reporting person purchased these shares directly from the issuer in a private placement, which purchase is exempt from Section 16(b) in accordance with Rule 16b-3(d) promulgated under the Securities Exchange Act of 1934, as amended.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 22, 2026 Filed May 27, 2026 23:23 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock Purchase Warrant · Derivative 14,235 $0.00 Strike: $1.28 $0.00
Disclosure

SEC source: 0001493152-26-025474 · ownership.xml · derivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,466

Underlying: Common Stock · 14,235 shares

Expires 2031-11-22

F1 · kind: The reporting person purchased these shares directly from the issuer in a private placement, which purchase is exempt from Section 16(b) in accordance with Rule 16b-3(d) promulgated under the Securities Exchange Act of 1934, as amended.

Read SEC document
May 22, 2026 Filed May 27, 2026 23:23 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 14,235 $1.41 $20,000.18
Disclosure

SEC source: 0001493152-26-025474 · ownership.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,245

Read SEC document
May 08, 2025 Filed May 9, 2025 21:30 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 8,462 $26.00 $220,012.00
Disclosure

SEC source: 0000950170-25-068281 · ownership.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,010

F1 · kind: These shares are being issued as a portion of and pursuant to the Company entering into a definitive conversion agreement on May 1, 2025, with a conversion date of May 7, 2025, along with 13 other holders of $6.6 million of the outstanding principal of the Secured Notes to convert the Secured Notes for an aggregate of 253,083 shares of the Company's Common Stock at a conversion price of $26.00 per share (on a post-reverse split basis), issuance of an aggregate of 126,540 warrants each exercisable for one share of Common Stock at an exercise price of $26.00 per share (on a post-reverse split basis), and a portion of the 2,174,311 shares of Wugen Inc. common stock held by the Company.

Read SEC document
May 07, 2025 Filed May 9, 2025 21:30 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock Purchase Warrant · Derivative 4,231 $0.00 Strike: $26.00 $0.00
Disclosure

SEC source: 0000950170-25-068281 · ownership.xml · derivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,231

Underlying: Common Stock · 4,231 shares

Expires 2030-05-07

F1 · kind: These shares are being issued as a portion of and pursuant to the Company entering into a definitive conversion agreement on May 1, 2025, with a conversion date of May 7, 2025, along with 13 other holders of $6.6 million of the outstanding principal of the Secured Notes to convert the Secured Notes for an aggregate of 253,083 shares of the Company's Common Stock at a conversion price of $26.00 per share (on a post-reverse split basis), issuance of an aggregate of 126,540 warrants each exercisable for one share of Common Stock at an exercise price of $26.00 per share (on a post-reverse split basis), and a portion of the 2,174,311 shares of Wugen Inc. common stock held by the Company.

Read SEC document
February 20, 2024 Filed Feb 22, 2024 19:19 UTC HCW Biologics Inc. HCWB · Entity 8172 GrantCommon Stock 760,714 $1.40 $1,064,999.60
Disclosure

SEC source: 0001209191-24-003782 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,381,909

F1 · kind: The reporting person purchased these shares directly from the issuer in a private placement, which transaction is exempt from Section 16(b) in accordance with Rule 16b-3(d) promulgated under the Securities Exchange Act of 1934, as amended.

Read SEC document
October 19, 2023 Filed Oct 23, 2023 20:44 UTC HCW Biologics Inc. HCWB · Entity 8172 Exercise / conversionStock Option Grant (Right to Buy) · Derivative 47,249 $0.00 Strike: $0.14 $0.00
Disclosure

SEC source: 0001209191-23-053344 · doc4.xml · derivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 47,249 shares

Expires 2029-12-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: These option shares were part of a stock option grant covering 135,000 shares of common stock. 20% of the total shares subject to the stock option grant vested on October 10, 2020; 20% of the total shares subject to the stock option grant vested on October 10, 2021; 25% of the total shares subject to the stock option grant vested on October 10, 2022; and 35% of the total shares subject to the stock option grant vested on October 10, 2023, subject to her continuous service through the applicable vesting date. The option is subject to additional vesting acceleration pursuant to her Employment Agreement.

Read SEC document
October 19, 2023 Filed Oct 23, 2023 20:44 UTC HCW Biologics Inc. HCWB · Entity 8172 Exercise / conversionCommon Stock 47,249 $0.14 $6,614.86
Disclosure

SEC source: 0001209191-23-053344 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 621,195

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 13, 2023 Filed Sep 15, 2023 22:52 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 5,000 $2.10 $10,490.00
Disclosure

SEC source: 0001209191-23-049650 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 573,946

F1 · price: The range of prices for the shares of Common Stock is from $2.07 to $2.10. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
September 12, 2023 Filed Sep 13, 2023 21:33 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 5,000 $2.09 $10,442.00
Disclosure

SEC source: 0001209191-23-049314 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 568,946

F2 · price: The range of prices for the shares of Common Stock is from $2.07 to $2.10. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
September 11, 2023 Filed Sep 13, 2023 21:33 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 5,000 $2.05 $10,273.00
Disclosure

SEC source: 0001209191-23-049314 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 563,946

F1 · price: The range of prices for the shares of Common Stock is from $2.01 to $2.09. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
September 08, 2023 Filed Sep 8, 2023 21:25 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 5,000 $2.02 $10,111.00
Disclosure

SEC source: 0001209191-23-048824 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 558,946

F2 · price: The range of prices for the shares of Common Stock is from $1.95 to $2.05. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
September 07, 2023 Filed Sep 8, 2023 21:25 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 5,000 $1.95 $9,742.00
Disclosure

SEC source: 0001209191-23-048824 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 553,946

F1 · price: The range of prices for the shares of Common Stock is from $1.90 to $1.95. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
September 06, 2023 Filed Sep 7, 2023 20:47 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 5,000 $1.95 $9,749.00
Disclosure

SEC source: 0001209191-23-048651 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 548,946

F1 · price: The range of prices for the shares of Common Stock is from $1.94 to $1.95. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
June 09, 2023 Filed Jun 9, 2023 22:49 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 20,000 $2.06 $41,286.00
Disclosure

SEC source: 0001209191-23-036040 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 543,946

F1 · price: The range of prices for the shares of Common Stock is from $1.99 to $2.18. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
June 08, 2023 Filed Jun 8, 2023 23:24 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 4,696 $2.21 $10,387.55
Disclosure

SEC source: 0001209191-23-035581 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 523,946

F2 · price: The range of prices for the shares of Common Stock is from $2.12 to $2.26. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
June 07, 2023 Filed Jun 8, 2023 23:24 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 20,000 $2.03 $40,632.00
Disclosure

SEC source: 0001209191-23-035581 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 519,250

F1 · price: The range of prices for the shares of Common Stock is from $1.90 to $2.16. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
June 06, 2023 Filed Jun 7, 2023 20:46 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 19,062 $1.82 $34,778.62
Disclosure

SEC source: 0001209191-23-035121 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 499,250

F2 · price: The range of prices for the shares of Common Stock is from $1.73 to $1.94. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
June 05, 2023 Filed Jun 7, 2023 20:46 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 20,000 $1.67 $33,344.00
Disclosure

SEC source: 0001209191-23-035121 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 480,188

F1 · price: The range of prices for the shares of Common Stock is from $1.625 to $1.72. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
May 26, 2023 Filed May 31, 2023 21:33 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 20,000 $1.66 $33,196.00
Disclosure

SEC source: 0001209191-23-033173 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 460,188

F2 · price: The range of prices for the shares of Common Stock is from $1.61 to $1.81. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
May 25, 2023 Filed May 31, 2023 21:33 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 20,000 $1.62 $32,348.00
Disclosure

SEC source: 0001209191-23-033173 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 440,188

F1 · price: The range of prices for the shares of Common Stock is from $1.57 to $1.69. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
May 24, 2023 Filed May 24, 2023 21:25 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 20,000 $1.61 $32,150.00
Disclosure

SEC source: 0001209191-23-031923 · doc4.xml · nonDerivative · entry 3

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 420,188

F3 · price: The range of prices for the shares of Common Stock is from $1.52 to $1.70. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
May 23, 2023 Filed May 24, 2023 21:25 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 5,036 $1.57 $7,887.38
Disclosure

SEC source: 0001209191-23-031923 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 400,188

F2 · price: The range of prices for the shares of Common Stock is from $1.57 to $1.60. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
May 22, 2023 Filed May 24, 2023 21:25 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 33,450 $1.53 $51,044.70
Disclosure

SEC source: 0001209191-23-031923 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 395,152

F1 · price: The range of prices for the shares of Common Stock is from $1.50 to $1.54. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
November 02, 2022 Filed Nov 3, 2022 21:09 UTC HCW Biologics Inc. HCWB · Entity 8172 Exercise / conversionStock Option Grant (Right to Buy) · Derivative 33,750 $0.00 Strike: $0.14 $0.00
Disclosure

SEC source: 0001209191-22-055548 · doc4.xml · derivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,249

Underlying: Common Stock · 33,750 shares

Expires 2029-12-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: These option shares were part of a stock option grant covering 135,000 shares of common stock. 20% of the total shares subject to the stock option grant vested on October 10, 2020; 20% of the total shares subject to the stock option grant vested on October 10, 2021; 25% of the total shares subject to the stock option grant will vest on October 10, 2022; and 35% of the total shares subject to the stock option grant will vest on October 10, 2023, subject to her continuous service through the applicable vesting date. The option is subject to additional vesting acceleration pursuant to her Employment Agreement.

Read SEC document
November 02, 2022 Filed Nov 3, 2022 21:09 UTC HCW Biologics Inc. HCWB · Entity 8172 Exercise / conversionCommon Stock 33,750 $0.14 $4,725.00
Disclosure

SEC source: 0001209191-22-055548 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 361,702

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 14, 2022 Filed Sep 15, 2022 20:27 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 15,000 $2.58 $38,650.50
Disclosure

SEC source: 0001209191-22-050074 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 327,952

F1 · price: The range of prices for the shares of Common Stock is from $2.51 to $2.58. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
September 13, 2022 Filed Sep 14, 2022 19:22 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 15,000 $2.58 $38,650.50
Disclosure

SEC source: 0001209191-22-049866 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 312,952

F2 · price: The range of prices for the shares of Common Stock is from $2.58 to $2.63. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
September 12, 2022 Filed Sep 14, 2022 19:22 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 15,000 $2.65 $39,763.50
Disclosure

SEC source: 0001209191-22-049866 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297,952

F1 · price: The range of prices for the shares of Common Stock is from $2.62 to $2.68. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
August 31, 2022 Filed Sep 1, 2022 20:01 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 10,000 $2.56 $25,572.00
Disclosure

SEC source: 0001209191-22-048239 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 282,952

F2 · price: The range of prices for the shares of Common Stock is from $2.56 to $2.58. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
August 30, 2022 Filed Sep 1, 2022 20:01 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 7,200 $2.55 $18,341.28
Disclosure

SEC source: 0001209191-22-048239 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 272,952

F1 · price: The range of prices for the shares of Common Stock is from $2.53 to $2.56. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
August 29, 2022 Filed Aug 30, 2022 21:20 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 10,000 $2.57 $25,662.00
Disclosure

SEC source: 0001209191-22-048016 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 265,752

F2 · price: The range of prices for the shares of Common Stock is from $2.56 to $2.61. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
August 26, 2022 Filed Aug 30, 2022 21:20 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 10,000 $2.54 $25,358.00
Disclosure

SEC source: 0001209191-22-048016 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 255,752

F1 · price: The range of prices for the shares of Common Stock is from $2.48 to $2.60. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
August 25, 2022 Filed Aug 26, 2022 20:48 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 40,300 $2.59 $104,522.08
Disclosure

SEC source: 0001209191-22-047721 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 245,752

F2 · price: The range of prices for the shares of Common Stock is from $2.55 to $2.75. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
August 24, 2022 Filed Aug 26, 2022 20:48 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 50,000 $2.50 $125,225.00
Disclosure

SEC source: 0001209191-22-047721 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 205,452

F1 · price: The range of prices for the shares of Common Stock is from $2.23 to $2.60. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
June 14, 2022 Filed Jun 15, 2022 23:13 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 58,856 $2.46 $144,985.87
Disclosure

SEC source: 0001209191-22-037110 · doc4.xml · nonDerivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 155,452

F2 · price: The range of prices for the shares of Common Stock is from $2.01 to $2.66. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
June 13, 2022 Filed Jun 15, 2022 23:13 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 7,596 $2.08 $15,812.59
Disclosure

SEC source: 0001209191-22-037110 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,596

F1 · price: The range of prices for the shares of Common Stock is from $1.99 to $2.2. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

Read SEC document
November 23, 2021 Filed Nov 26, 2021 17:17 UTC HCW Biologics Inc. HCWB · Entity 8172 Exercise / conversionStock Option Grant (Right to Buy) · Derivative 27,000 $0.00 Strike: $0.14 $0.00
Disclosure

SEC source: 0001209191-21-066900 · doc4.xml · derivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,999

Underlying: Common Stock · 27,000 shares

Expires 2029-12-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: These option shares were part of a stock option grant covering 135,000 shares of common stock. 20% of the total shares subject to the stock option grant vested on October 10, 2020; 20% of the total shares subject to the stock option grant vested on October 10, 2021; 25% of the total shares subject to the stock option grant will vest on October 10, 2022; and 35% of the total shares subject to the stock option grant will vest on October 10, 2023, subject to her continuous service through the applicable vesting date. The option is subject to additional vesting acceleration pursuant to her Employment Agreement.

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November 23, 2021 Filed Nov 26, 2021 17:17 UTC HCW Biologics Inc. HCWB · Entity 8172 Exercise / conversionCommon Stock 27,000 $0.14 $3,780.00
Disclosure

SEC source: 0001209191-21-066900 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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September 08, 2021 Filed Sep 10, 2021 21:52 UTC HCW Biologics Inc. HCWB · Entity 8172 GrantStock Option (Right to Buy) · Derivative 80,000 $0.00 Strike: $4.31 $0.00
Disclosure

SEC source: 0001209191-21-055531 · doc4.xml · derivative · entry 2

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,000

Underlying: Common Stock · 80,000 shares

Expires 2031-09-07

F2 · derivative.exercise_date: The option will vest as follows: 20% will vest on September 8, 2022, 20% will vest on September 8, 2023, 25% will vest on September 8, 2024 and 35% will vest on September 8, 2025.

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August 29, 2021 Filed Sep 10, 2021 21:52 UTC HCW Biologics Inc. HCWB · Entity 8172 GrantStock Option (Right to Buy) · Derivative 135,000 $0.00 Strike: $4.00 $0.00
Disclosure

SEC source: 0001209191-21-055531 · doc4.xml · derivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,000

Underlying: Common Stock · 135,000 shares

Expires 2031-08-28

F1 · derivative.exercise_date: The option will vest as follows: 33% will vest on July 22, 2022, 33% will vest on July 22, 2023 and 34% will vest on July 22, 2024.

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August 19, 2021 Filed Aug 23, 2021 23:50 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 10,000 $4.40 $43,979.00
Disclosure

SEC source: 0001209191-21-053049 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,000

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August 19, 2021 Filed Sep 10, 2021 21:53 UTC Amendment HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 10,000 $4.40 $43,979.00
Disclosure

SEC source: 0001209191-21-055532 · doc4a.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,000

F1 · price: The range of prices for the shares of Common Stock is from $4.17 to $4.68. The reporting person undertakes that she will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.

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July 22, 2021 Filed Jul 23, 2021 23:28 UTC HCW Biologics Inc. HCWB · Entity 8172 PurchaseCommon Stock 25,000 $8.00 $200,000.00
Disclosure

SEC source: 0001209191-21-048079 · doc4.xml · nonDerivative · entry 1

Byam Rebecca · CIK 0001866256 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,000

F1 · shares: Represents shares of Common Stock purchased in connection with the Issuer's initial public offering for consideration of $8.00 per share.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.