Moderna MRNA
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: +$362.43M (13 inflow days, 7 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 38.1% of shares outstanding.
Largest holders
By investor type
Reported short interest has fallen from 12.54% to 8.17% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Hartford Funds Management Company, LLC | Mutual Fund | 2026/Q3 | +324,787 | 0.1% |
| Stéphane Bancel | Individual/Insider | 2026/Q3 | +252,469 | 5.6% |
| FMR | Mutual Fund | 2026/Q3 | +6,109,142 | 13.0% |
| T. Rowe Price Group, Inc. | Mutual Fund | 2026/Q3 | +4,850,982 | 1.4% |
| Capital Research | Mutual Fund | 2026/Q3 | +3,579,302 | 5.6% |
| Baron Capital Group, Inc. | Mutual Fund | 2026/Q3 | +1,989,386 | 0.5% |
| Morgan Stanley | Public Company | 2026/Q3 | +1,110,697 | 1.6% |
| BlackRock | Mutual Fund | 2026/Q3 | +963,533 | 7.7% |
| Invesco Capital Management LLC | Mutual Fund | 2026/Q3 | +947,217 | 1.3% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +864,784 | 3.9% |
| Citigroup Inc. | Public Company | 2026/Q3 | +685,380 | 0.5% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +439,605 | 0.1% |
| Bank of America Corporation | Public Company | 2026/Q3 | +424,120 | 0.3% |
| Vanguard Capital Management, LLC | Mutual Fund | 2026/Q3 | +357,644 | 6.3% |
| Dimensional Fund Advisors | Mutual Fund | 2026/Q3 | +336,608 | 0.6% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 14 Oct 2026 | Stephen Hoge | President | Intent to Sell (Form 144) | -39,145 | $220.72 | – |
| 14 Oct 2026 | Stephen Hoge | President | Derivative Exercise and Sale | -78,369 | $220.72 | 1,792,614 |
| 14 Oct 2026 | Stephen Hoge | President | Derivative Exercise and Retained | +74,536 | $12.21 | 1,792,614 |
| 13 Oct 2026 | Stephen Hoge | President | Intent to Sell (Form 144) | -39,224 | $213.48 | – |
| 4 Oct 2026 | Juan Andres | Chief Operating Officer | Initial Statement of Beneficial | +0 | – | 125,000 |
| 4 Oct 2026 | James Mock | Chief Financial Officer | Derivative Exercise and Sale | -704 | $190.01 | 60,125 |
| 4 Oct 2026 | James Mock | Chief Financial Officer | Derivative Exercise and Retained | +750 | – | 60,125 |
| 14 Sep 2026 | Stephen Hoge | President | Intent to Sell (Form 144) | -40,281 | $146.07 | – |
| 14 Sep 2026 | Stephen Hoge | President | Derivative Exercise and Sale | -80,575 | $146.07 | 1,718,078 |
| 14 Sep 2026 | Stephen Hoge | President | Derivative Exercise and Retained | +72,330 | $12.21 | 1,718,078 |
| 13 Sep 2026 | Stephen Hoge | President | Intent to Sell (Form 144) | -40,294 | $144.13 | – |
| 9 Sep 2026 | James Mock | Chief Financial Officer | Automatic Disposition | -15,000 | $134.49 | 59,375 |
| 9 Sep 2026 | James Mock | Chief Financial Officer | Derivative Exercise and Sale | -19,836 | $134.49 | 59,375 |
| 3 Sep 2026 | Shannon Klinger | Chief Legal Officer | Derivative Exercise and Sale | -5,704 | $148.87 | 81,340 |
| 3 Sep 2026 | Shannon Klinger | Chief Legal Officer | Derivative Exercise and Retained | +6,093 | – | 81,340 |
| 3 Sep 2026 | James Mock | Chief Financial Officer | Derivative Exercise and Sale | -5,704 | $148.87 | 74,375 |
| 3 Sep 2026 | James Mock | Chief Financial Officer | Derivative Exercise and Retained | +6,093 | – | 74,375 |
| 31 Aug 2026 | Shannon Klinger | Chief Legal Officer | Sale to Issuer | -1,048 | $140.34 | 75,247 |
| 31 Aug 2026 | Shannon Klinger | Chief Legal Officer | Derivative Exercise and Sale | -3,471 | $139.95 | 75,247 |
| 31 Aug 2026 | Shannon Klinger | Chief Legal Officer | Derivative Exercise and Retained | +2,166 | – | 75,247 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 32,603,398 | 8.2% | 1.8 |
| 30 Sep 2026 | 30,863,202 | 7.7% | 1.8 |
| 15 Sep 2026 | 32,872,787 | 8.2% | 2.5 |
| 31 Aug 2026 | 39,151,532 | 9.8% | 1.0 |
| 14 Aug 2026 | 52,809,184 | 13.2% | 9.2 |
| 31 Jul 2026 | 49,768,882 | 12.5% | 10.2 |
No comments yet — be the first to weigh in on MRNA.
Sign in to join the discussion.