Dynavax Technologies Corporation
Dynavax Technologies Corporation (DVAX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · DVAX · as of Sep 30, 2025
Ownership Breakdown
282
Institutional Holders
▲ 8 vs Q2
$1.13B
Total Inst. Value
▼ $8.46M vs Q2
117.42M
Shares Outstanding
freeFloat 85.45%
113.79M
13F Shares Held
▼ 942,307 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
DVAX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. pharmaceutical preparations | 16.25M | 13.85% | 13.85% | $161.35B | Nov 12, 2025 | ▼ 997.3K |
DEEP TRACK CAPITAL, LP pharmaceutical preparations | 15.73M | 13.41% | 13.41% | $156.16B | Nov 14, 2025 | ▼ 2.07M |
VANGUARD GROUP INC pharmaceutical preparations | 8.10M | 6.90% | 6.90% | $80.43B | Nov 7, 2025 | ▼ 327.2K |
STATE STREET CORP pharmaceutical preparations | 6.29M | 5.36% | 5.36% | $62.41B | Nov 14, 2025 | ▼ 110.5K |
MILLENNIUM MANAGEMENT LLC pharmaceutical preparations | 4.53M | 3.86% | 3.86% | $44.97B | Nov 14, 2025 | ▲ 2.92M |
CHICAGO CAPITAL, LLC pharmaceutical preparations | 4.31M | 3.67% | 3.67% | $42.79B | Oct 22, 2025 | ▼ 919.1K |
DIMENSIONAL FUND ADVISORS LP pharmaceutical preparations | 3.57M | 3.04% | 3.04% | $35.42B | Nov 12, 2025 | ▼ 77.2K |
RENAISSANCE TECHNOLOGIES LLC pharmaceutical preparations | 3.14M | 2.68% | 2.68% | $31.17B | Nov 13, 2025 | ▲ 252.0K |
GEODE CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 2.53M | 2.16% | 2.16% | $25.13B | Nov 12, 2025 | ▼ 158.4K |
BLAIR WILLIAM & CO/IL pharmaceutical preparations | 2.23M | 1.90% | 1.90% | $22.13B | Nov 12, 2025 | ▼ 51.0K |
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
25
Increased
+7.95M shares0
New Positions
first time holders23
Decreased
−7.19M shares0
Sold Out
fully exitedNet shares change (top 50)
+757.4K
+7.95M / −7.19M
Net new holders
+2
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
DVAX insider trading · insider activity
Source: SEC Form 4
10
Buy transactions
85
Sell transactions
0.12
Buy/Sell ratio
$22M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Deep Track Biotechnology Master Fund, Ltd. 10 percent owner | Feb 10, 2026 | U-Tender | 15,726,349 | $0.00 | $15.7K | 0 | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | Award | 165,000 | — | — | 165.0K | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | Award | 136,000 | — | — | 136.0K | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | D-Return | 280,000 | $11.12 | $3.11M | 0 | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | D-Return | 136,000 | — | — | 0 | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | D-Return | 231,000 | $12.48 | $2.88M | 0 | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | D-Return | 90,667 | — | — | 0 | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | U-Tender | 379,620 | — | — | 0 | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | D-Return | 350,000 | $12.74 | $4.46M | 0 | Form 4 ↗ |
Spencer Ryan CEO and Director | Feb 10, 2026 | D-Return | 50,000 | $3.81 | $190.5K | 0 | 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
Dynavax Technologies Corporation (DVAX) is primarily owned by institutional investors, who hold approximately 96.9% of total shares outstanding. Company insiders own approximately 14.55%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Dynavax Technologies Corporation is BLACKROCK, INC., holding approximately 16.25 million shares — equal to 13.85% of outstanding shares — as of September 30, 2025.
A total of 282 institutional investors currently hold DVAX stock, with a combined institutional value of approximately $1.13 billion as of the most recent 13F filing period.
Frequently asked questions
DVAX ownershipDynavax Technologies Corporation (DVAX) is primarily owned by institutional investors, who hold approximately 96.9% of shares. The largest shareholder is BLACKROCK, INC. with a 13.85% stake. Company insiders hold 14.55%. Data sourced from SEC Form 13F as of September 30, 2025.