HCW Biologics Inc.
HCW Biologics Inc. (HCWB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · HCWB · as of Sep 30, 2025
Ownership Breakdown
10
Institutional Holders
▲ 2 vs Q2
$456,855
Total Inst. Value
▲ $371,337 vs Q2
2.09M
Shares Outstanding
freeFloat 85.77%
123,473
13F Shares Held
▲ 101,905 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
HCWB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
DRW SECURITIES, LLC pharmaceutical preparations | 83.4K | 3.69% | 3.69% | $308.71M | Nov 14, 2025 | NEW |
VANGUARD GROUP INC pharmaceutical preparations | 15.4K | 68.25% | 68.25% | $57.08M | Nov 7, 2025 | NEW |
GEODE CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 11.0K | 48.68% | 48.68% | $40.71M | Nov 12, 2025 | NEW |
GOLDEN STATE WEALTH MANAGEMENT, LLC pharmaceutical preparations | 10.0K | 44.25% | 44.25% | $37.00M | Nov 3, 2025 | — held |
WELLS FARGO & COMPANY/MN pharmaceutical preparations | 1.7K | 7.52% | 7.52% | $6.29M | Nov 13, 2025 | — held |
TOWER RESEARCH CAPITAL LLC (TRC) pharmaceutical preparations | 1.6K | 6.91% | 6.91% | $5.78M | Nov 14, 2025 | ▲ 1.3K |
CITIGROUP INC pharmaceutical preparations | 311 | 1.38% | 1.38% | $1.15M | Nov 10, 2025 | NEW |
ADVISOR GROUP HOLDINGS, INC. pharmaceutical preparations | 26 | 0.12% | 0.12% | $96,000 | Nov 14, 2025 | — held |
BANK OF AMERICA CORP /DE/ pharmaceutical preparations | 10 | 0.04% | 0.04% | $37,000 | Feb 3, 2026 | — held |
SBI SECURITIES CO., LTD. pharmaceutical preparations | 1 | 0.00% | 0.00% | $4,000 | Nov 5, 2025 | ▼ 5 |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
1
Increased
+1.3K shares4
New Positions
first time holders1
Decreased
−5 shares2
Sold Out
fully exitedNet shares change (top 50)
+1.3K
+1.3K / −5
Net new holders
+2
4 new / 2 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
HCWB insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
12
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Wong Hing C Chief Executive Officer | May 22, 2026 | Purchase | 113,879 | $1.41 | $160.0K | 615.8K | Form 4 ↗ |
Wong Hing C Chief Executive Officer | May 22, 2026 | Purchase | 113,879 | $1.28 | $145.8K | 118.1K | Form 4 ↗ |
GARRETT SCOTT T director | May 22, 2026 | Purchase | 177,936 | $1.41 | $250.0K | 203.4K | Form 4 ↗ |
GARRETT SCOTT T director | May 22, 2026 | Purchase | 177,936 | $1.28 | $227.8K | 180.6K | Form 4 ↗ |
Byam Rebecca Chief Financial Officer | May 22, 2026 | Purchase | 14,235 | $1.41 | $20.0K | 57.2K | Form 4 ↗ |
Byam Rebecca Chief Financial Officer | May 22, 2026 | Purchase | 14,235 | $1.28 | $18.2K | 18.5K | Form 4 ↗ |
Wong Hing C Chief Executive Officer | May 16, 2025 | Purchase | 8,054 | $7.45 | $60.0K | 501.9K | Form 4 ↗ |
Winer Gary M director | May 16, 2025 | Purchase | 1,342 | $7.45 | $10.0K | 4.1K | Form 4 ↗ |
GARRETT SCOTT T director | May 16, 2025 | Purchase | 13,423 | $7.45 | $100.0K | 25.5K | Form 4 ↗ |
Winer Gary M director | May 8, 2025 | Purchase | 2,308 | $26.00 | $60.0K | 2.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
HCW Biologics Inc. (HCWB) is primarily owned by institutional investors, who hold approximately 5.9% of total shares outstanding. Company insiders own approximately 14.23%, while retail and public investors account for the remaining 79.85%.
The largest institutional shareholder of HCW Biologics Inc. is DRW SECURITIES, LLC, holding approximately 83,436 shares — equal to 3.69% of outstanding shares — as of September 30, 2025.
A total of 10 institutional investors currently hold HCWB stock, with a combined institutional value of approximately $456,855 as of the most recent 13F filing period.
Frequently asked questions
HCWB ownershipHCW Biologics Inc. (HCWB) is primarily owned by institutional investors, who hold approximately 5.9% of shares. The largest shareholder is DRW SECURITIES, LLC with a 3.69% stake. Company insiders hold 14.23%. Data sourced from SEC Form 13F as of September 30, 2025.