Skip to main content

HCW Biologics Inc.

HCWB
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001828673

In the last 90 days, HCW Biologics Inc. insiders filed 3 open-market purchases and 0 sales; 12 institutions reported holding it in 13F filings for Q2 2026, worth $515.7K in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by HCW Biologics Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
3 filings
3 insiders, $100.0K in total
Open-market sells
0 filings
Insiders trading
3
Net value
+$100.0K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for HCW Biologics Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for HCW Biologics Inc.
NameTitleLast reported holdingLast filingFilings, past year
Wong Hing CChief Executive Officer125,845Jul 31, 20262
Flowers LeeSVP of Business Development8,691Jul 31, 20261
Garrett Scott TDirector41,644IndirectJul 31, 20262
Byam RebeccaChief Financial Officer57,245May 27, 20261
Winer Gary MDirector4,075May 20, 20250
Greene Rick S.Director2,066May 9, 20250
Giles Lisa M.Director35,815Jun 17, 20240
Rhode PeterSee Remarks77,500Dec 11, 20230
Jiao Jin-anVP of Development45,141Jun 2, 20220
Medmira Capital Ltd.10% Owner0Sep 17, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 23, 2021 (view filing)Jul 221 dayWong Hing CChief Executive OfficerPPurchase+627.5K$8.00+$5.02M+4.3%15.3M after
Jul 23, 2021 (view filing)Jul 221 dayByam RebeccaChief Financial OfficerPPurchase+25.0K$8.00+$200.0K+92.6%52.0K after
Jul 23, 2021 (view filing)Jul 221 dayFlowers LeeSVP of Business DevelopmentPPurchase+31.3K$8.00+$250.0K+85.8%67.7K after
Jul 23, 2021 (view filing)Jul 221 dayRhode PeterSee RemarksPPurchase+12.5K$8.00+$100.0K+36.5%46.8K after
Jul 23, 2021 (view filing)Jul 221 dayGarrett Scott TDirectorPPurchase+125.0K$8.00+$1.00MNew position125.0K after
Aug 24, 2021 (view filing)Aug 195 daysFlowers LeeSVP of Business DevelopmentPPurchase+10.5K$4.29+$45.2K+15.6%78.2K afterAmended
Aug 24, 2021 (view filing)Aug 20-234 daysFlowers LeeSVP of Business DevelopmentPPurchase+13.5K$4.03+$54.2K+17.2%91.7K after2 lots
Aug 27, 2021 (view filing)Aug 252 daysGreene Rick S.DirectorPPurchase+3.61K$4.10+$14.8KNew position3.61K after
Aug 30, 2021 (view filing)Aug 26-304 daysWong Hing CChief Executive OfficerPPurchase+12.5K$3.88+$48.5K+0.1%15.3M afterFrom original2 lots
Sep 10, 2021 (view filing)Aug 1922 daysByam RebeccaChief Financial OfficerPPurchase+10.0K$4.40+$44.0K+19.2%62.0K afterAmended
Oct 7, 2021 (view filing)Aug 2741 daysWong Hing CChief Executive OfficerPPurchase+8.00K$3.76+$30.1K+0.1%15.3M afterAmended
Oct 7, 2021 (view filing)Aug 3137 daysWong Hing CChief Executive OfficerPPurchase+5.83K$3.94+$23.0K0.0%15.3M afterAmended
Dec 7, 2021 (view filing)Dec 61 dayJiao Jin-anVP of DevelopmentPPurchase+10.0K$2.42+$24.2K+48.6%30.6K after
Jun 6, 2022 (view filing)Jun 24 daysGreene Rick S.DirectorPPurchase+4.80K$2.09+$10.0K+132.9%8.41K after
Jun 8, 2022 (view filing)Jun 6-72 daysWiner Gary MDirectorPPurchase+2.00K$2.12+$4.23K+26.7%9.50K after2 lots
Jun 9, 2022 (view filing)Jun 7-92 daysWong Hing CChief Executive OfficerPPurchase+3.00K$2.27+$6.81K0.0%15.3M after2 lots
Jun 10, 2022 (view filing)Jun 8-102 daysWiner Gary MDirectorPPurchase+3.50K$2.19+$7.67K+36.8%13.0K after3 lots
Jun 13, 2022 (view filing)Jun 103 daysWong Hing CChief Executive OfficerPPurchase+1.52K$2.19+$3.33K0.0%15.3M after
Jun 15, 2022 (view filing)Jun 13-142 daysByam RebeccaChief Financial OfficerPPurchase+66.5K$2.42+$160.6K+74.7%155.5K after2 lots
Aug 26, 2022 (view filing)Aug 24-252 daysByam RebeccaChief Financial OfficerPPurchase+90.3K$2.54+$229.4K+58.1%245.8K after2 lots
Aug 30, 2022 (view filing)Aug 26-294 daysByam RebeccaChief Financial OfficerPPurchase+20.0K$2.56+$51.1K+8.1%265.8K after2 lots
Sep 1, 2022 (view filing)Aug 30-312 daysByam RebeccaChief Financial OfficerPPurchase+17.2K$2.56+$44.0K+6.5%283.0K after2 lots
Sep 7, 2022 (view filing)Sep 2-75 daysWong Hing CChief Executive OfficerPPurchase+10.0K$2.57+$25.7K+0.1%15.3M after2 lots
Sep 12, 2022 (view filing)Sep 8-94 daysWong Hing CChief Executive OfficerPPurchase+10.0K$2.69+$26.9K+0.1%15.3M after2 lots
Sep 14, 2022 (view filing)Sep 12-132 daysByam RebeccaChief Financial OfficerPPurchase+30.0K$2.62+$78.5K+10.6%313.0K after2 lots
Sep 15, 2022 (view filing)Sep 141 dayByam RebeccaChief Financial OfficerPPurchase+15.0K$2.58+$38.7K+4.8%328.0K after
May 24, 2023 (view filing)May 22-242 daysByam RebeccaChief Financial OfficerPPurchase+58.5K$1.56+$91.3K+16.2%420.2K after3 lots
May 31, 2023 (view filing)May 25-266 daysLateByam RebeccaChief Financial OfficerPPurchase+40.0K$1.64+$65.6K+9.5%460.2K after2 lots
Jun 1, 2023 (view filing)May 30-312 daysWiner Gary MDirectorPPurchase+1.35K$1.51+$2.04K+10.4%14.3K after2 lots
Jun 1, 2023 (view filing)May 30-312 daysWong Hing CChief Executive OfficerPPurchase+5.00K$1.55+$7.75K0.0%15.3M after2 lots
Jun 2, 2023 (view filing)Jun 1-21 dayWong Hing CChief Executive OfficerPPurchase+1.60K$1.58+$2.53K0.0%15.3M after2 lots
Jun 7, 2023 (view filing)Jun 5-62 daysByam RebeccaChief Financial OfficerPPurchase+39.1K$1.74+$68.1K+8.5%499.3K after2 lots
Jun 8, 2023 (view filing)Jun 7-81 dayByam RebeccaChief Financial OfficerPPurchase+24.7K$2.06+$51.0K+4.9%523.9K after2 lots
Jun 9, 2023 (view filing)Jun 9Same dayByam RebeccaChief Financial OfficerPPurchase+20.0K$2.06+$41.2K+3.8%543.9K after
Jun 9, 2023 (view filing)8:00 PM ETJun 81 dayFlowers LeeSVP of Business DevelopmentPPurchase+10.0K$2.16+$21.6K+9.9%111.3K after
Sep 7, 2023 (view filing)Sep 61 dayByam RebeccaChief Financial OfficerPPurchase+5.00K$1.95+$9.75K+0.9%548.9K after
Sep 7, 2023 (view filing)Sep 5-72 daysWiner Gary MDirectorPPurchase+463$1.78+$822.85+3.2%14.8K after2 lots
Sep 8, 2023 (view filing)Sep 7-81 dayByam RebeccaChief Financial OfficerPPurchase+10.0K$1.99+$19.9K+1.8%558.9K after2 lots
Sep 12, 2023 (view filing)Sep 8-124 daysWiner Gary MDirectorPPurchase+600$2.05+$1.23K+4.1%15.4K after3 lots
Sep 13, 2023 (view filing)Sep 11-122 daysByam RebeccaChief Financial OfficerPPurchase+10.0K$2.07+$20.7K+1.8%568.9K after2 lots
Sep 15, 2023 (view filing)Sep 132 daysByam RebeccaChief Financial OfficerPPurchase+5.00K$2.10+$10.5K+0.9%573.9K after
Sep 15, 2023 (view filing)Sep 13-142 daysWiner Gary MDirectorPPurchase+1.59K$2.05+$3.26K+10.3%17.0K after4 lots
Sep 18, 2023 (view filing)Sep 144 daysWong Hing CChief Executive OfficerPPurchase+1.80K$2.08+$3.74K0.0%15.3M after
May 9, 2025 (view filing)May 81 dayGreene Rick S.DirectorPPurchase+962$26.00+$25.0K+87.1%2.07K after
May 9, 2025 (view filing)May 72 daysGreene Rick S.DirectorPPurchase+481$0.00$0–481 afterDerivative
May 9, 2025 (view filing)May 81 dayFlowers LeeSVP of Business DevelopmentPPurchase+962$26.00+$25.0K+20.2%5.72K after
May 9, 2025 (view filing)May 72 daysFlowers LeeSVP of Business DevelopmentPPurchase+481$0.00$0–481 afterDerivative
May 9, 2025 (view filing)May 81 dayByam RebeccaChief Financial OfficerPPurchase+8.46K$26.00+$220.0K+24.5%43.0K after
May 9, 2025 (view filing)May 72 daysByam RebeccaChief Financial OfficerPPurchase+4.23K$0.00$0–4.23K afterDerivative
May 9, 2025 (view filing)May 81 dayGarrett Scott TDirectorPPurchase+5.38K$26.00+$140.0K+80.4%12.1K after