Inovio Pharmaceuticals, Inc.
Inovio Pharmaceuticals, Inc. (INO) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · INO · as of Sep 30, 2025
Ownership Breakdown
104
Institutional Holders
▼ 3 vs Q2
$48.47M
Total Inst. Value
▲ $27.78M vs Q2
53.59M
Shares Outstanding
freeFloat 99.47%
20.72M
13F Shares Held
▲ 10.55M 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
INO largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
ADAGE CAPITAL PARTNERS GP, L.L.C. surgical & medical instruments & apparatus | 3.43M | 8.83% | 8.83% | $8.02B | Nov 14, 2025 | NEW |
JANUS HENDERSON GROUP PLC surgical & medical instruments & apparatus | 3.27M | 8.41% | 8.41% | $7.63B | Nov 14, 2025 | NEW |
VANGUARD GROUP INC surgical & medical instruments & apparatus | 2.71M | 6.99% | 6.99% | $6.35B | Nov 7, 2025 | ▲ 703.7K |
BOXER CAPITAL MANAGEMENT, LLC surgical & medical instruments & apparatus | 2.30M | 5.92% | 5.92% | $5.38B | Feb 17, 2026 | NEW |
MILLENNIUM MANAGEMENT LLC surgical & medical instruments & apparatus | 1.97M | 5.08% | 5.08% | $4.62B | Nov 14, 2025 | ▲ 1.63M |
RENAISSANCE TECHNOLOGIES LLC surgical & medical instruments & apparatus | 816.3K | 2.10% | 2.10% | $1.91B | Nov 13, 2025 | ▲ 488.2K |
D. E. SHAW & CO., INC. surgical & medical instruments & apparatus | 806.7K | 2.08% | 2.08% | $1.89B | Nov 14, 2025 | NEW |
MORGAN STANLEY surgical & medical instruments & apparatus | 786.8K | 2.03% | 2.03% | $1.84B | May 27, 2026 | ▲ 384.9K |
BANK OF AMERICA CORP /DE/ surgical & medical instruments & apparatus | 636.1K | 1.64% | 1.64% | $1.49B | Feb 3, 2026 | ▼ 634.5K |
GEODE CAPITAL MANAGEMENT, LLC surgical & medical instruments & apparatus | 546.7K | 1.41% | 1.41% | $1.28B | Nov 12, 2025 | ▲ 109.2K |
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
20
Increased
+4.60M shares13
New Positions
first time holders15
Decreased
−1.19M shares0
Sold Out
fully exitedNet shares change (top 50)
+3.41M
+4.60M / −1.19M
Net new holders
+18
13 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
INO insider trading · insider activity
Source: SEC Form 4
30
Buy transactions
16
Sell transactions
1.88
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 |
|---|---|---|---|---|---|---|---|
YARNO WENDY L director | May 20, 2026 | Award | 41,800 | $1.23 | $51.4K | 41.8K | Form 4 ↗ |
Shepard Jay director | May 20, 2026 | Award | 41,800 | $1.23 | $51.4K | 41.8K | Form 4 ↗ |
Miller Ann Calby director | May 20, 2026 | Award | 41,800 | $1.23 | $51.4K | 41.8K | Form 4 ↗ |
Weiner David B. director | May 20, 2026 | Award | 41,800 | $1.23 | $51.4K | 41.8K | Form 4 ↗ |
Zoth Lota S. director | May 20, 2026 | Award | 41,800 | $1.23 | $51.4K | 41.8K | Form 4 ↗ |
DANSEY ROGER D director | May 20, 2026 | Award | 41,800 | $1.23 | $51.4K | 41.8K | Form 4 ↗ |
BENITO SIMON X director | May 20, 2026 | Award | 41,800 | $1.23 | $51.4K | 41.8K | Form 4 ↗ |
Humeau Laurent Chief Scientific Officer | May 20, 2026 | Tax Withhold | 2,163 | $1.23 | $2.7K | 46.8K | Form 4 ↗ |
Humeau Laurent Chief Scientific Officer | May 20, 2026 | Award | 34,160 | $1.73 | $59.1K | 34.2K | Form 4 ↗ |
Sumner Michael John Chief Medical Officer | May 20, 2026 | Award | 46,876 | $1.73 | $81.1K | 46.9K | 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
Inovio Pharmaceuticals, Inc. (INO) is primarily owned by institutional investors, who hold approximately 38.7% of total shares outstanding. Company insiders own approximately 0.53%, while retail and public investors account for the remaining 60.80%.
The largest institutional shareholder of Inovio Pharmaceuticals, Inc. is ADAGE CAPITAL PARTNERS GP, L.L.C., holding approximately 3.43 million shares — equal to 8.83% of outstanding shares — as of September 30, 2025.
A total of 104 institutional investors currently hold INO stock, with a combined institutional value of approximately $48,470,435 as of the most recent 13F filing period.
Frequently asked questions
INO ownershipInovio Pharmaceuticals, Inc. (INO) is primarily owned by institutional investors, who hold approximately 38.7% of shares. The largest shareholder is ADAGE CAPITAL PARTNERS GP, L.L.C. with a 8.83% stake. Company insiders hold 0.53%. Data sourced from SEC Form 13F as of September 30, 2025.