HCW Biologics HCWB Insider Ownership

NASDAQ HCWB

$1.15 -0.02 (-1.38%)

As of: Oct 21, 2026 · 11:26 AM EDT

Insider Holdings by Owner

187.40K Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

10.40%

▲+2.11% pp QoQ

Shares Held by Insiders

191.00K

filed for Sep 2026

▲+25.40% QoQ

Shares Outstanding

1.84Mn

1,836,324 shares

Direct Holdings

149.35K

Indirect: 41.64K

Net Shares Traded (QoQ)

+38.69K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the past 12 months, HCW Biologics insiders bought $509,996 of stock on the open market and made no open-market sales.

HCW Biologics' open-market purchases in the past 12 months came from 3 insiders; no insider sold.
Among HCWB's insiders, Scott T. Garrett (Director) was the top open-market buyer in the past 12 months, with $269,998 of stock purchased and the latest purchase on July 29, 2026.
The latest open-market trade in HCWB stock by an insider was a purchase of 23.21K shares for $59,998 by Hing C. Wong (Chief Executive Officer) on July 29, 2026.
Per Business Quant, HCWB insiders together hold 191K shares based on their latest Form 4 filings, or 10.40% of the 1.84Mn shares outstanding; that total is up 25.40% from 152.31K shares at the end of Q2 2026 and up 93.64% from 98.64K shares (split-adjusted) at the end of Q3 2025.
Of the 191K shares held by HCW Biologics insiders, 149.35K shares (78.20%) are held directly and 41.64K shares (21.80%) indirectly, through trusts, partnerships, family members and other entities.
HCWB's insider total is spread across 6 insiders who have filed a Form 4 in the past two years.
HCWB's largest insider holders by reported holdings are Hing C. Wong (Chief Executive Officer, 125.84K shares), Scott T. Garrett (Director, 45.9K shares) and Rebecca Byam (Chief Financial Officer, 9.54K shares).
The largest insider, Hing C. Wong, holds 65.89% of HCWB's insider total.
In the last 12 months, 6 Form 4 filings with transactions in HCWB stock came from 4 insiders.
These insider figures for HCW Biologics are based on Form 4 filings through July 31, 2026.

Form 4 Holdings

Insiders Holding HCWB

Insiders 9

Shares held 187.40K

Of outstanding 10.21%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Hing C Wong	Chief Executive Officer	125,845	0	125,845	67.2%	31 Jul, 2026
2	Scott T Garrett	Director	0	41,644	41,644	22.2%	31 Jul, 2026
3	Rebecca Byam	Chief Financial Officer	9,541	0	9,541	5.1%	27 May, 2026
4	Lee Flowers	Svp Of Business Development	8,691	0	8,691	4.6%	31 Jul, 2026
5	Gary M Winer	Director	679	0	679	0.4%	20 May, 2025
6	Rick S. Greene	Director	344	0	344	0.2%	09 May, 2025
7	Peter Rhode	Officer	323	0	323	0.2%	11 Dec, 2023
8	Jin-An Jiao	Vp Of Development	188	0	188	0.1%	02 Jun, 2022
9	Lisa M. Giles	Director	149	0	149	0.1%	22 Feb, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

164 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
29 Jul, 2026	Lee Flowers	Svp Of Business Development	Acquired P	7,736	$2.59	$20.00K	8,691	Direct
29 Jul, 2026	Scott T Garrett	Director	Acquired P	7,736	$2.59	$20.00K	41,644	Indirect
29 Jul, 2026	Hing C Wong	Chief Executive Officer	Acquired P	23,210	$2.59	$60.00K	125,845	Direct
22 May, 2026	Rebecca Byam	Chief Financial Officer	Acquired P	14,235	$8.43	$120.00K	9,541	Direct
22 May, 2026	Scott T Garrett	Director	Acquired P	177,936	$8.43	$1.50Mn	33,907	Indirect
22 May, 2026	Hing C Wong	Chief Executive Officer	Acquired P	113,879	$8.43	$960.00K	102,632	Direct
22 May, 2026	Rebecca Byam	Chief Financial Officer	Acquired P	14,235	$0.00	$0	3,078	Direct
22 May, 2026	Hing C Wong	Chief Executive Officer	Acquired P	113,879	$0.00	$0	19,685	Direct
22 May, 2026	Scott T Garrett	Director	Acquired P	177,936	$0.00	$0	30,105	Indirect
16 May, 2025	Scott T Garrett	Director	Acquired P	13,423	$44.70	$600.01K	4,251	Direct
16 May, 2025	Hing C Wong	Chief Executive Officer	Acquired P	8,054	$44.70	$360.01K	83,652	Direct
16 May, 2025	Gary M Winer	Director	Acquired P	1,342	$44.70	$59.99K	679	Direct
08 May, 2025	Rick S. Greene	Director	Acquired P	962	$156.00	$150.07K	344	Direct
08 May, 2025	Hing C Wong	Chief Executive Officer	Acquired P	92,500	$156.00	$14.43Mn	82,310	Direct
08 May, 2025	Gary M Winer	Director	Acquired P	2,308	$156.00	$360.05K	456	Direct
08 May, 2025	Lee Flowers	Svp Of Business Development	Acquired P	962	$156.00	$150.07K	953	Direct
08 May, 2025	Rebecca Byam	Chief Financial Officer	Acquired P	8,462	$156.00	$1.32Mn	7,168	Direct
08 May, 2025	Scott T Garrett	Director	Acquired P	5,385	$156.00	$840.06K	2,014	Direct
07 May, 2025	Gary M Winer	Director	Acquired P	1,154	$0.00	$0	192	Direct
07 May, 2025	Hing C Wong	Chief Executive Officer	Acquired P	46,250	$0.00	$0	7,708	Direct

Showing 1 to 20 of 164 transactions