AltimmuneALT
13F holders, Q3 2025 (September 30)158holders −22
22new positions
42sold out
4famous investors
$3.77avg. 13F price*
At the end of Q3 2025, 158 institutions reported holding Altimmune Inc. (ALT) in their 13F filings, down 22 from Q2 2025. 22 opened new positions and 42 sold out. The largest holders were Vanguard Group Inc. ($24.0M), BlackRock, Inc. ($24.0M) and State Street Corp. ($13.6M). 4 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Altimmune Inc.
- CUSIP
- 02155H200
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $6.6M |
| Exits | 42 | $6.7M |
All 13F filers, Q2 2025 → Q3 2025: 10,101,186 shares bought and 6,200,400 shares sold, net +3,900,786 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 158 holders
| Vanguard Group Inc. | 0.00% | Add +23.4% | 6,373,638 | $24.0M |
| BlackRock, Inc. | 0.00% | Add +0.0% | 6,373,259 | $24.0M |
| State Street Corp. | 0.00% | Add +30.8% | 3,601,255 | $13.6M |
| Tang Capital Management LLC | 0.31% | Reduce -22.5% | 2,131,307 | $8.0M |
| Geode Capital Management, LLC | 0.00% | Add +4.3% | 2,017,385 | $7.6M |
| Two Sigma Investments, LP | 0.01% | Add +356.6% | 1,996,848 | $7.5M |
| Morgan Stanley | 0.00% | Add +78.5% | 1,491,049 | $5.6M |
| Two Sigma Advisers, LP | 0.01% | Add +1005.6% | 1,428,400 | $5.4M |
| Susquehanna International Group, LLP | 0.01% | Reduce -15.2% | 1,374,182 | $5.2M |
| Citadel Advisors | 0.00% | Add +144.9% | 1,282,014 | $4.8M |
| Knoll Capital Management, LLC | 2.27% | No change | 1,121,524 | $4.2M |
| Northern Trust Corp. | 0.00% | Add +2.6% | 657,016 | $2.5M |
| UBS Group AG | 0.00% | Reduce -27.5% | 642,837 | $2.4M |
| Squarepoint Ops LLC | 0.00% | New | 584,696 | $2.2M |
| Goldman Sachs Group Inc. | 0.00% | Add +12.6% | 562,257 | $2.1M |
| Point72 Asset Management | 0.00% | New | 476,926 | $1.8M |
| FMR LLC | 0.00% | Add +10.8% | 445,137 | $1.7M |
| Beirne Wealth Consulting Services, LLC | 0.37% | Add +19.9% | 410,458 | $1.5M |
| Millennium Management | 0.00% | Add +369.5% | 367,582 | $1.4M |
| D. E. Shaw & Co. | 0.00% | Add +603.1% | 360,395 | $1.4M |
| Bank of New York Mellon Corp | 0.00% | Add +3.0% | 341,985 | $1.3M |
| Barclays PLC | 0.00% | Add +16.5% | 340,283 | $1.3M |
| Bank of America Corp. | 0.00% | Reduce -55.3% | 320,440 | $1.2M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -33.5% | 297,789 | $1.1M |
| Jane Street Group, LLC | 0.00% | New | 280,199 | $1.1M |
| Sculptor Capital LP | 0.02% | Add +83.3% | 276,700 | $1.0M |
| Wellington Management Group LLP | 0.00% | Add +5.1% | 264,802 | $998K |
| Brown Wealth Management, LLC | 0.25% | Add +1.1% | 233,673 | $881K |
| Brevan Howard Capital Management LP | 0.01% | Add +67.4% | 222,942 | $840K |
| Steward Partners Investment Advisory, LLC | 0.00% | Add +2.8% | 219,309 | $827K |
| Simplex Trading, LLC | 0.02% | Add +113.8% | 213,709 | $805K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -12.4% | 204,449 | $771K |
| Nuveen, LLC | 0.00% | No change | 202,355 | $763K |
| Hennion & Walsh Asset Management, Inc. | 0.03% | Reduce -1.8% | 185,575 | $700K |
| Susquehanna Portfolio Strategies, LLC | 0.01% | Add +119.7% | 185,227 | $698K |
| ExodusPoint Capital Management, LP | 0.01% | Add +353.9% | 178,177 | $672K |
| Commonwealth Equity Services, LLC | 0.00% | Add +76.0% | 174,097 | $656K |
| Invesco Ltd. | 0.00% | Add +51.5% | 161,943 | $611K |
| Rafferty Asset Management, LLC | 0.00% | Add +53.1% | 156,194 | $589K |
| Group One Trading LLC | 0.02% | Reduce -70.1% | 140,255 | $529K |
| Rhumbline Advisers | 0.00% | Add +14.7% | 130,743 | $493K |
| Caption Management, LLC | 0.03% | Reduce -86.8% | 130,000 | $490K |
| Baird Financial Group, Inc. | 0.00% | Add +100.9% | 119,440 | $450K |
| Gsa Capital Partners LLP | 0.04% | Reduce -3.8% | 116,770 | $440K |
| Jump Financial, LLC | 0.01% | New | 115,800 | $437K |
| IMC-Chicago, LLC | 0.01% | Reduce -38.3% | 115,360 | $435K |
| Silvercrest Asset Management Group LLC | 0.00% | No change | 103,500 | $390K |
| Macquarie Group Ltd. | 0.00% | No change | 100,000 | $377K |
| JPMorgan Chase & Co. | 0.00% | Reduce -5.3% | 99,191 | $374K |
| Summit Financial Wealth Advisors, LLC | 0.06% | Reduce -21.7% | 96,288 | $373K |
| Wells Fargo & Company | 0.00% | Reduce -5.6% | 92,907 | $350K |
| Deutsche Bank AG | 0.00% | Add +8.7% | 76,893 | $290K |
| BNP Paribas Financial Markets | 0.00% | Add +638.3% | 74,533 | $281K |
| Ameriprise Financial Inc. | 0.00% | Reduce -34.7% | 74,312 | $280K |
| HSBC Holdings PLC | 0.00% | Reduce -14.4% | 73,126 | $272K |
| Alliancebernstein L.P. | 0.00% | No change | 71,760 | $271K |
| Royal Bank of Canada | 0.00% | Add +9.5% | 66,733 | $251K |
| LPL Financial LLC | 0.00% | Reduce -18.5% | 61,524 | $232K |
| Stifel Financial Corp. | 0.00% | Add +45.4% | 60,411 | $228K |
| Wealth Effects LLC | 0.07% | Add +88.5% | 59,850 | $226K |
| Janney Montgomery Scott LLC | 0.00% | New | 58,560 | $221K |
| Bridgeway Capital Management, LLC | 0.00% | New | 50,600 | $191K |
| DLD Asset Management, LP | 0.08% | Add +121.2% | 50,000 | $189K |
| Jefferies Financial Group Inc. | 0.00% | Add +42.9% | 50,000 | $189K |
| Virtu Financial LLC | 0.01% | Reduce -82.0% | 48,068 | $181K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -3.0% | 45,905 | $173K |
| MetLife Investment Management, LLC | 0.00% | Reduce -5.0% | 44,534 | $168K |
| T. Rowe Price Associates Inc. | 0.00% | Add +21.2% | 41,493 | $157K |
| Engineers Gate Manager LP | 0.00% | New | 41,043 | $155K |
| Cornerstone Planning Group LLC | 0.02% | Add +256100.0% | 2,562 | $146K |
| Intech Investment Management LLC | 0.00% | Reduce -73.3% | 38,639 | $146K |
| Creative Planning | 0.00% | Reduce -11.6% | 36,378 | $137K |
| MML Investors Services, LLC | 0.00% | Reduce -12.1% | 34,550 | $130K |
| Sig Brokerage, LP | 0.03% | New | 34,502 | $130K |
| Profund Advisors LLC | 0.00% | Add +55.3% | 33,712 | $127K |
| Verition Fund Management LLC | 0.00% | No change | 31,154 | $117K |
| Raymond James Financial Inc. | 0.00% | Add +6.6% | 27,672 | $104K |
| Farallon Capital Management, L.L.C. | 0.00% | No change | 27,600 | $104K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -7.0% | 25,987 | $98K |
| Concurrent Investment Advisors, LLC | 0.00% | Reduce -5.0% | 24,008 | $91K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +44.5% | 23,573 | $89K |
| Wolverine Trading, LLC | 0.00% | Reduce -52.1% | 21,820 | $83K |
| New York State Common Retirement Fund | 0.00% | No change | 21,447 | $81K |
| B. Riley Wealth Advisors, Inc. | 0.00% | Add +12.0% | 20,480 | $77K |
| Axq Capital, LP | 0.03% | Reduce -50.5% | 20,435 | $77K |
| Cetera Investment Advisers | 0.00% | Add +11.3% | 20,206 | $76K |
| AlphaQuest LLC | 0.00% | No change | 19,820 | $75K |
| SG Americas Securities, LLC | 0.00% | New | 18,040 | $68K |
| Osaic Holdings, Inc. | 0.00% | Reduce -1.8% | 17,748 | $68K |
| Kraematon Investment Advisors, Inc. | 0.06% | Reduce -48.1% | 17,435 | $66K |
| ProShare Advisors LLC | 0.00% | Reduce -9.6% | 17,081 | $64K |
| Composition Wealth, LLC | 0.00% | Reduce -0.1% | 17,020 | $64K |
| Fortis Capital Management LLC | 0.01% | No change | 16,606 | $63K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +13260.8% | 16,033 | $60K |
| Virtus Investment Advisers, LLC | 0.02% | Add +21.0% | 15,914 | $60K |
| Sherbrooke Park Advisers LLC | 0.03% | New | 15,904 | $60K |
| Walleye Capital LLC | 0.00% | New | 15,518 | $59K |
| China Universal Asset Management Co., Ltd. | 0.00% | Reduce -5.0% | 15,470 | $58K |
| Kingswood Wealth Advisors, LLC | 0.00% | Add +48.1% | 15,400 | $58K |
| Walleye Trading LLC | 0.00% | New | 14,759 | $56K |
"% of holder's portfolio" is ALT's weight in each manager's 13F, not the share of Altimmune Inc. the manager owns.