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Delisting risk

HCWB · NASDAQ · Biotechnology

HCW Biologics (HCWB)

Develops fusion immunotherapies and cell-therapy manufacturing reagents.

$3.35

Pre-market+0.03 (+0.78%)

At close$3.32(−3.77%)

Watchlist

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Breakdown13F · 13D/G · Form 4

Institutions14 holders · as of Mar 31, 2026	21.57%	75.0K shares
Insiders7 holders · as of Jul 31, 2026	79.00%	274.6K shares
Adds to	100.57%

347.6K company shares as of Aug 21, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Two share counts disagree (1.84M in the company's Sep 3, 2026 report, 347.6K elsewhere); stakes use the report.

These groups come from separate filings that can overlap, so they add to 100.57%; nothing is left for Other.

Top shareholders13F · 13D/G · Form 4

Holder	Stake	Shares	Evidence
Hing C. WongInsiderdirector, 10 percent owner, officer: Chief Executive Officer	36.20%	125,845	Form 4filed Jul 31, 2026 ↗
Hing C. Wong, Ph.D.Insider	24.06%	83,652	13Dfiled Jun 13, 2025 ↗
Scott T. GarrettInsiderdirector	13.20%	45,895	Form 4filed Jul 31, 2026 ↗
HRT Financial LPInstitution	12.77%	266,393	13Fas of Mar 31, 2026
Rebecca ByamInsiderofficer: Chief Financial Officer	2.74%	9,541	Form 4filed May 27, 2026 ↗
Lee FlowersInsiderofficer: SVP of Business Development	2.50%	8,691	Form 4filed Jul 31, 2026 ↗
Virtu Financial LLCInstitution	2.29%	47,809	13Fas of Mar 31, 2026
Geode Capital Management, LLCInstitution	1.72%	35,886	13Fas of Mar 31, 2026
Citadel Advisors LLCInstitution	1.25%	26,083	13Fas of Mar 31, 2026
Tower Research Capital LLC (TRC)Institution	0.71%	14,839	13Fas of Mar 31, 2026
Jane Street Group, LLCInstitution	0.68%	14,134	13Fas of Mar 31, 2026
Vanguard Capital Management LLCInstitution	0.58%	12,023	13Fas of Mar 31, 2026
Citigroup IncInstitution	0.50%	10,528	13Fas of Mar 31, 2026
Golden State Wealth Management, LLCInstitution	0.48%	10,000	13Fas of Mar 31, 2026
UBS Group AGInstitution	0.44%	9,221	13Fas of Mar 31, 2026
Gary M. WinerInsiderdirector	0.20%	679	Form 4filed May 20, 2025 ↗
Rick S. GreeneInsiderdirector	0.10%	344	Form 4filed May 9, 2025 ↗
Vanguard Fiduciary Trust CoInstitution	0.09%	1,903	13Fas of Mar 31, 2026
Wells Fargo & Company/MNInstitution	0.05%	1,000	13Fas of Mar 31, 2026
Advisor Group Holdings, Inc.Institution	0.00%	26	13Fas of Mar 31, 2026
Northwestern Mutual Wealth Management CoInstitution	0.00%	2	13Fas of Mar 31, 2026
Peter Rhode¹Insiderofficer: See Remarks	0.09%	323	Form 4filed Dec 11, 2023 ↗
Jin-an Jiao²Insiderofficer: VP of Development	0.05%	188	Form 4filed Jun 2, 2022 ↗
Lisa M. Giles³Insiderdirector	0.04%	149	Form 4filed Feb 22, 2024 ↗
Medmira Capital Ltd.⁴Strategic10 percent owner	0.00%	0	Form 4filed Sep 17, 2021 ↗

Last filed Dec 11, 2023; leaving the company requires no filing. Not in the bar.
Last filed Jun 2, 2022; leaving the company requires no filing. Not in the bar.
Last filed Feb 22, 2024; leaving the company requires no filing. Not in the bar.
Last filed Sep 17, 2021; leaving the company requires no filing. Not in the bar.

13F — a manager's quarterly holdings · 13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F, as of Mar 31, 2026

14 holders · 449.8K shares · 6 new positions · 11 increased · 0 reduced · 6 closed

Holder	Shares	% outstanding	Chg q/q	Filed
HRT Financial LP	266.4K	76.63%	+266.4Knew	May 14, 2026
Virtu Financial LLC	47.8K	13.75%	+47.8Knew	May 14, 2026
Geode Capital Management, LLC	35.9K	10.32%	+21.8K	May 15, 2026
Citadel Advisors LLC	26.1K	7.50%	+3.9K	May 15, 2026
Tower Research Capital LLC (TRC)	14.8K	4.27%	+10.3K	May 15, 2026
Jane Street Group, LLC	14.1K	4.07%	+14.1Knew	May 12, 2026
Vanguard Capital Management LLC	12.0K	3.46%	+12.0Knew	May 15, 2026
Citigroup Inc	10.5K	3.03%	+10.5K	May 11, 2026

Ownership statements13D/G · 5% or more, as filed

Holder	% of class	Shares	Form	Filed
Hing C. Wong, Ph.D.	23.38%		13D	Jun 13, 2025 ↗

Insider tradesForm 4

Latest trades

Date	Insider	Type	Shares	Avg price	Owned after
Jul 29, 2026	Scott T. Garrettdirector	Purchase	7,736	$2.59	41,644
Jul 29, 2026	Lee Flowersofficer: SVP of Business Development	Purchase	7,736	$2.59	8,691
Jul 29, 2026	Hing C. Wongdirector, 10 percent owner, officer: Chief Executive Officer	Purchase	23,210	$2.59	125,845
May 22, 2026	Rebecca Byamofficer: Chief Financial Officer	Purchase · 2 lots	28,470	$1.34	75,711
May 22, 2026	Scott T. Garrettdirector	Purchase · 2 lots	355,872	$1.34	384,069
May 22, 2026	Hing C. Wongdirector, 10 percent owner, officer: Chief Executive Officer	Purchase · 2 lots	227,758	$1.34	733,900

CongressHouse and Senate disclosures

Not reported.