AltimmuneALT
13F holders, Q1 2025 (March 31)177holders −5
26new positions
28sold out
2famous investors
$5.01avg. 13F price*
At the end of Q1 2025, 177 institutions reported holding Altimmune Inc. (ALT) in their 13F filings, down 5 from Q4 2024. 26 opened new positions and 28 sold out. The largest holders were BlackRock, Inc. ($30.7M), Vanguard Group Inc. ($22.0M) and State Street Corp. ($17.0M). 2 famous investors held it, including Israel Englander (0.0% of Millennium Management'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 Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 26 | $4.9M |
| Exits | 28 | $12.7M |
All 13F filers, Q4 2024 → Q1 2025: 5,602,990 shares bought and 7,929,434 shares sold, net −2,326,444 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 177 holders
| BlackRock, Inc. | 0.00% | Reduce -0.4% | 6,135,230 | $30.7M |
| Vanguard Group Inc. | 0.00% | Reduce -0.5% | 4,407,462 | $22.0M |
| State Street Corp. | 0.00% | Reduce -2.3% | 3,391,571 | $17.0M |
| Tang Capital Management LLC | 0.76% | No change | 2,750,000 | $13.8M |
| Geode Capital Management, LLC | 0.00% | Add +2.9% | 1,705,885 | $8.5M |
| Ameriprise Financial Inc. | 0.00% | Reduce -72.5% | 1,443,932 | $7.2M |
| Marshall Wace, LLP | 0.01% | Add +1683.3% | 1,168,338 | $5.8M |
| Two Sigma Investments, LP | 0.01% | Add +89.6% | 1,147,816 | $5.7M |
| Knoll Capital Management, LLC | 3.65% | No change | 1,121,524 | $5.6M |
| Millennium Management | 0.01% | Add +221.5% | 1,111,299 | $5.6M |
| Susquehanna International Group, LLP | 0.01% | Add +114.8% | 1,076,064 | $5.4M |
| Bellevue Group AG | 0.12% | Add +11.8% | 1,056,793 | $5.3M |
| Schroder Investment Management Group | 0.01% | Add +124.6% | 961,884 | $5.1M |
| UBS Group AG | 0.00% | Add +9.5% | 788,165 | $3.9M |
| Morgan Stanley | 0.00% | Reduce -28.7% | 657,247 | $3.3M |
| Northern Trust Corp. | 0.00% | Reduce -4.4% | 636,706 | $3.2M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -22.3% | 492,469 | $2.5M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -25.8% | 390,335 | $2.0M |
| RFG Advisory, LLC | 0.04% | New | 324,397 | $1.6M |
| Beirne Wealth Consulting Services, LLC | 0.52% | No change | 294,458 | $1.5M |
| Gerber, LLC | 1.17% | No change | 281,778 | $1.4M |
| Bank of America Corp. | 0.00% | Add +54.2% | 280,552 | $1.4M |
| Two Sigma Advisers, LP | 0.00% | Add +302.3% | 264,300 | $1.3M |
| Nuveen, LLC | 0.00% | — | 263,898 | $1.3M |
| Group One Trading LLC | 0.05% | Reduce -7.9% | 256,610 | $1.3M |
| Wellington Management Group LLP | 0.00% | Add +9.6% | 224,954 | $1.1M |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 211,879 | $1.1M |
| Hennion & Walsh Asset Management, Inc. | 0.04% | Reduce -3.9% | 197,684 | $988K |
| Bank of New York Mellon Corp | 0.00% | Add +1.2% | 189,000 | $945K |
| Federated Hermes, Inc. | 0.00% | New | 187,727 | $939K |
| Barclays PLC | 0.00% | Add +19.0% | 187,462 | $937K |
| Citigroup Inc. | 0.00% | Add +31.1% | 163,518 | $818K |
| Exchange Traded Concepts, LLC | 0.01% | Reduce -3.7% | 153,606 | $768K |
| Jane Street Group, LLC | 0.00% | Reduce -45.2% | 152,642 | $763K |
| Steward Partners Investment Advisory, LLC | 0.01% | Add +431.9% | 149,209 | $746K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -8.9% | 143,672 | $718K |
| Swiss National Bank | 0.00% | No change | 139,500 | $698K |
| Squarepoint Ops LLC | 0.00% | Add +810.4% | 133,885 | $669K |
| Summit Financial Wealth Advisors, LLC | 0.12% | Add +18.6% | 117,988 | $590K |
| JPMorgan Chase & Co. | 0.00% | Add +7.3% | 110,511 | $553K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +15.7% | 106,872 | $534K |
| Rhumbline Advisers | 0.00% | Add +1.6% | 106,519 | $533K |
| Silvercrest Asset Management Group LLC | 0.00% | No change | 103,500 | $518K |
| Brown Wealth Management, LLC | 0.17% | Add +100.0% | 100,024 | $500K |
| Macquarie Group Ltd. | 0.00% | No change | 100,000 | $500K |
| Wells Fargo & Company | 0.00% | Reduce -57.5% | 91,681 | $458K |
| Commonwealth Equity Services, LLC | 0.00% | Add +4.2% | 89,676 | $448K |
| Sculptor Capital LP | 0.02% | New | 88,000 | $440K |
| IMC-Chicago, LLC | 0.02% | Reduce -72.5% | 83,311 | $417K |
| Invesco Ltd. | 0.00% | Reduce -67.2% | 81,128 | $406K |
| Deutsche Bank AG | 0.00% | Add +3.9% | 79,851 | $399K |
| MML Investors Services, LLC | 0.00% | Reduce -28.1% | 78,613 | $393K |
| Alliancebernstein L.P. | 0.00% | No change | 71,760 | $359K |
| Intech Investment Management LLC | 0.00% | Add +54.8% | 71,408 | $357K |
| HSBC Holdings PLC | 0.00% | New | 72,258 | $349K |
| Legal & General Group Plc | 0.00% | No change | 68,102 | $340K |
| LPL Financial LLC | 0.00% | Add +14.4% | 66,581 | $333K |
| California State Teachers Retirement System | 0.00% | No change | 66,422 | $332K |
| Baird Financial Group, Inc. | 0.00% | No change | 59,440 | $297K |
| Balyasny Asset Management L.P. | 0.00% | Reduce -72.0% | 54,953 | $275K |
| Royal Bank of Canada | 0.00% | Reduce -7.2% | 52,467 | $262K |
| D. E. Shaw & Co. | 0.00% | Reduce -89.0% | 50,516 | $253K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.8% | 48,901 | $247K |
| State of Wisconsin Investment Board | 0.00% | Reduce -1.1% | 48,087 | $240K |
| MetLife Investment Management, LLC | 0.00% | Add +5.4% | 46,870 | $234K |
| Brevan Howard Capital Management LP | 0.01% | Add +212.2% | 43,804 | $219K |
| ExodusPoint Capital Management, LP | 0.00% | New | 40,927 | $205K |
| Caption Management, LLC | 0.01% | New | 38,864 | $194K |
| Fox Run Management, L.L.C. | 0.03% | Add +196.0% | 38,200 | $191K |
| Stifel Financial Corp. | 0.00% | Add +178.6% | 36,500 | $183K |
| Kraematon Investment Advisors, Inc. | 0.18% | Add +14.0% | 35,085 | $175K |
| Corebridge Financial, Inc. | 0.00% | Reduce -1.5% | 34,796 | $174K |
| Janus Henderson Group PLC | 0.00% | No change | 32,000 | $170K |
| Creative Planning | 0.00% | Reduce -14.6% | 31,606 | $158K |
| T. Rowe Price Associates Inc. | 0.00% | Add +11.8% | 31,478 | $158K |
| Wealth Effects LLC | 0.06% | Reduce -6.1% | 30,850 | $154K |
| Gsa Capital Partners LLP | 0.01% | Reduce -62.9% | 30,778 | $154K |
| North Star Investment Management Corp. | 0.01% | No change | 30,000 | $150K |
| Profund Advisors LLC | 0.01% | Reduce -2.6% | 29,759 | $149K |
| Farallon Capital Management, L.L.C. | 0.00% | No change | 27,600 | $138K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -1.8% | 25,197 | $126K |
| Horizon Wealth Management, LLC | 0.02% | New | 25,000 | $125K |
| Marex Group Ltd | 0.00% | No change | 25,000 | $125K |
| Jefferies Financial Group Inc. | 0.00% | No change | 25,000 | $125K |
| NewEdge Advisors, LLC | 0.00% | Reduce -1.5% | 24,759 | $124K |
| B. Riley Wealth Advisors, Inc. | 0.00% | Reduce -0.6% | 24,300 | $122K |
| Cetera Investment Advisers | 0.00% | Add +58.9% | 22,802 | $114K |
| Envestnet Asset Management Inc. | 0.00% | New | 22,237 | $111K |
| DCF Advisers, LLC | 0.06% | New | 21,770 | $109K |
| Concurrent Investment Advisors, LLC | 0.00% | New | 21,693 | $108K |
| OneDigital Investment Advisors LLC | 0.00% | Reduce -11.8% | 21,590 | $108K |
| New York State Common Retirement Fund | 0.00% | No change | 21,447 | $107K |
| FMR LLC | 0.00% | Reduce -63.3% | 20,803 | $104K |
| Simplex Trading, LLC | 0.00% | Reduce -88.5% | 20,821 | $104K |
| Arizona State Retirement System | 0.00% | Reduce -0.8% | 20,386 | $102K |
| Debussy Capital Management LP | 0.02% | No change | 20,000 | $100K |
| AlphaQuest LLC | 0.01% | New | 19,820 | $99K |
| Osaic Holdings, Inc. | 0.00% | Reduce -6.5% | 19,688 | $98K |
| Teacher Retirement System of Texas | 0.00% | Reduce -9.7% | 19,144 | $96K |
| Virtus Investment Advisers, LLC | 0.03% | New | 19,116 | $96K |
"% of holder's portfolio" is ALT's weight in each manager's 13F, not the share of Altimmune Inc. the manager owns.