Assertio HoldingsASRT
13F holders, Q1 2026 (March 31)65holders +14
20new positions
5sold out
3famous investors
$19.06avg. 13F price*
At the end of Q1 2026, 65 institutions reported holding Assertio Holdings Inc. (ASRT) in their 13F filings, up 14 from Q4 2025. 20 opened new positions and 5 sold out. The largest holders were Nantahala Capital Management, LLC ($13.2M), Vanguard Capital Management LLC ($5.1M) and Opaleye Management Inc. ($5.1M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Assertio Holdings Inc.
- CUSIP
- 04546C304
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $11.8M |
| Exits | 5 | $307K |
All 13F filers, Q4 2025 → Q1 2026: 894,449 shares bought and 71,315 shares sold, net +823,134 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 65 holders
| Nantahala Capital Management, LLC | 0.83% | Add +17.9% | 692,335 | $13.2M |
| Vanguard Capital Management LLC | 0.00% | — | 268,952 | $5.1M |
| Opaleye Management Inc. | 0.67% | New | 265,707 | $5.1M |
| Renaissance Technologies | 0.01% | Add +19.9% | 228,599 | $4.4M |
| Edgewood Management LLC | 0.01% | Reduce 0.0% | 107,517 | $2.0M |
| BlackRock, Inc. | 0.00% | Add +0.0% | 90,035 | $1.7M |
| Jane Street Group, LLC | 0.00% | Add +570.9% | 79,436 | $1.5M |
| Geode Capital Management, LLC | 0.00% | Add +10.5% | 76,314 | $1.5M |
| Walleye Capital LLC | 0.01% | New | 65,926 | $1.3M |
| Sei Investments Co. | 0.00% | New | 54,940 | $1.0M |
| Huntleigh Advisors, Inc. | 0.17% | New | 52,603 | $1.0M |
| Citadel Advisors | 0.00% | Add +14.7% | 51,286 | $978K |
| Informed Momentum Co LLC | 0.10% | New | 45,145 | $860K |
| Marshall Wace, LLP | 0.00% | New | 40,772 | $777K |
| CM Management, LLC | 0.56% | Reduce -30.0% | 35,000 | $667K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 34,388 | $655K |
| Two Sigma Investments, LP | 0.00% | Add +79.8% | 33,577 | $640K |
| State Street Corp. | 0.00% | Add +8.2% | 27,772 | $529K |
| Corsair Capital Management, L.P. | 0.07% | New | 25,549 | $487K |
| Bank of America Corp. | 0.00% | Add +6505.0% | 25,033 | $477K |
| Morgan Stanley | 0.00% | Reduce -17.0% | 21,030 | $401K |
| Quadrature Capital Ltd | 0.00% | New | 18,687 | $356K |
| Squarepoint Ops LLC | 0.00% | New | 17,892 | $341K |
| Millennium Management | 0.00% | Reduce -52.4% | 16,425 | $313K |
| Bridgeway Capital Management, LLC | 0.01% | Add +7.1% | 16,014 | $305K |
| Empowered Funds, LLC | 0.00% | Add +7.1% | 16,014 | $305K |
| Verdad Advisers, LP | 0.33% | New | 15,541 | $296K |
| Northern Trust Corp. | 0.00% | Add +7.9% | 14,570 | $278K |
| Dimensional Fund Advisors LP | 0.00% | New | 14,135 | $269K |
| UBS Group AG | 0.00% | Add +570.0% | 6,331 | $121K |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 0.04% | No change | 4,499 | $86K |
| Acadian Asset Management LLC | 0.00% | Add +115.3% | 3,899 | $73K |
| Vanguard Global Advisers, LLC | 0.00% | — | 2,065 | $39K |
| Royal Bank of Canada | 0.00% | Reduce -16.6% | 789 | $15K |
| Osaic Holdings, Inc. | 0.00% | Add +840.0% | 376 | $7K |
| Citigroup Inc. | 0.00% | New | 325 | $6K |
| MCF Advisors LLC | 0.00% | New | 100 | $2K |
| Wells Fargo & Company | 0.00% | Add +21.9% | 100 | $2K |
| JPMorgan Chase & Co. | 0.00% | No change | 88 | $2K |
| Annis Gardner Whiting Capital Advisors, LLC | 0.00% | New | 80 | $2K |
| Axiom Investment Management LLC | 0.00% | — | 63 | $1K |
| Arax Advisory Partners | 0.00% | No change | 63 | $1K |
| Activest Wealth Management | 0.00% | No change | 50 | $953 |
| Strategic Investment Solutions, Inc. | 0.00% | No change | 50 | $953 |
| Darwin Wealth Management, LLC | 0.00% | No change | 46 | $885 |
| Financial Management Professionals, Inc. | 0.00% | No change | 45 | $858 |
| Key Financial Inc | 0.00% | No change | 29 | $553 |
| MAI Capital Management | 0.00% | No change | 29 | $553 |
| FMR LLC | 0.00% | Reduce -72.6% | 23 | $438 |
| Allworth Financial LP | 0.00% | No change | 18 | $344 |
| SOA Wealth Advisors, LLC. | 0.00% | No change | 16 | $305 |
| Smartleaf Asset Management LLC | 0.00% | No change | 16 | $292 |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 13 | $248 |
| Advisory Services Network, LLC | 0.00% | New | 10 | $191 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -74.4% | 10 | $191 |
| Cassaday & Co Wealth Management LLC | 0.00% | New | 8 | $153 |
| NFSG Corp | 0.00% | No change | 8 | $152 |
| Main Street Group, LTD | 0.00% | New | 8 | $152 |
| IFP Advisors, Inc | 0.00% | New | 5 | $95 |
| Larson Financial Group LLC | 0.00% | Add +400.0% | 5 | $95 |
| Inspire Investing, LLC | 0.00% | Add +50.0% | 3 | $59 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 3 | $57 |
| TD Waterhouse Canada Inc. | 0.00% | No change | 2 | $40 |
| Jones Financial Companies LLLP | 0.00% | No change | 2 | $39 |
| UMB Bank, n.a. | 0.00% | New | 2 | $38 |
"% of holder's portfolio" is ASRT's weight in each manager's 13F, not the share of Assertio Holdings Inc. the manager owns.