$HCWB

$1.10 -$0.07 (5.98%) Close

$HCWB Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 1.8M shares outstanding

Who owns HCWB?

By type of holder

Institutions 0.0% Insiders 3.6% Everyone else 96.4%

Concentration Top 6 holders own 29.2%

Hing C. Wong, Ph.D. 27.3% · Garrett Scott T 0.9%

Institutional ownership

0.0%

-24.5 pts vs last qtr

Institutional holders

-15 vs last qtr

Net shares bought

−449.8K

by institutions in Q2 2026

New / sold out

0 / 15

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

None.

Biggest sellers in Q2 2026

HRT Financial LP SOLD OUT −266.4K
Virtu Financial LLC SOLD OUT −47.8K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for HCW Biologics Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2021–FY2025

+246.4%

+36.43% a year

Each share's claim on the business

−71.1%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $4.26M

over 5 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

No 13F manager reports holding HCWB.

Super Investors

Investment managers reporting HCWB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
HF HRT Financial LP	—	—	SOLD OUT	—	0.0%
Shares held by quarter Peak holding266.4K (Q1'26) Change over 8 quarters0 HRT Financial LP's full portfolio →
VF Virtu Financial LLC	—	—	SOLD OUT	—	0.0%
Shares held by quarter Peak holding47.8K (Q1'26) Change over 8 quarters0 Virtu Financial LLC's full portfolio →

HRT Financial LP

—

% of company

—

Change vs last qtr

SOLD OUT

Held since

—

Virtu Financial LLC

—

% of company

—

Change vs last qtr

SOLD OUT

Held since

—

3 more super investors behind a free account

See every manager holding HCW Biologics Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting HCWB on Form N-PORT; together they hold 2.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FE Fidelity Extended Market Index Fund Fidelity Concord Street Trust	$63.6K	32.1K	1.75%	0.00%	May 31, 2026
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$4.33K	12.0K	0.65%	0.00%	March 31, 2026

Fidelity Extended Market Index Fund

Fidelity Concord Street Trust

Position value

$63.6K

% of company

1.75%

% of the fund

0.00%

As of

May 31, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$4.33K

% of company

0.65%

% of the fund

0.00%

As of

March 31, 2026

3 more funds behind a free account

See every fund holding HCW Biologics Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
HC Hing C. Wong, Ph.D. 5%+ holder 13D · 23.4%	501.9K	27.33%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company27.330% Disclosed stake13D · 23.4% View the 13D/G filing →
GS Garrett Scott T Insider	16.8K	0.91%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.910% Garrett Scott T's insider activity →

Hing C. Wong, Ph.D.

5%+ holder13D · 23.4%

501.9K

% of company

27.33%

Change vs last qtr

—

Held since

—

Garrett Scott T

Insider

16.8K

% of company

0.91%

Change vs last qtr

—

Held since

—

4 more holders behind a free account

See every insider and 5%+ holder of HCW Biologics Inc.

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