ASRT
Assertio Holdings, Inc.Company with tickers: ASRT
CIK
1808665
CUSIP
04546C304
Shares Outstanding
6,462,180
13F Activity (30d)
53 filings
52 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 67
Total Value: $51,467,773
Total Shares: 2,700,305
Institutional Ownership Trend
Holder Concentration
Across 67 13F filers · Δ vs Dec 31, 2025Top Holder
25.6%
−7.2 pts
Top 5
60.6%
−10.6 pts
Top 10
76.5%
−10.5 pts
HHI
1,053
Broadly held
−545
Quarterly Activity
vs Dec 31, 2025
New
24
Increased
19
Decreased
7
Sold Out
10
Unchanged
17
Holder count:
+14
Institutional value:
+217.4%
Shares held:
+51.0%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | +109,800 | 181,600 | |
| Mid Nantahala Capital Management, LLC | +105,000 | 692,335 | |
| Mega JANE STREET GROUP, LLC | +67,595 | 79,436 | |
| Large RENAISSANCE TECHNOLOGIES LLC | +37,902 | 228,599 | |
| Mega BANK OF AMERICA CORP /DE/ | +24,654 | 25,033 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega MILLENNIUM MANAGEMENT LLC | −18,053 | 16,425 | |
| Small CM Management, LLC | −15,000 | 35,000 | |
| Mega MORGAN STANLEY | −4,315 | 21,030 | |
| Mega ROYAL BANK OF CANADA | −157 | 789 | |
| Mega FMR LLC | −61 | 23 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 268,952 | $5,126,225 | |
| Small Opaleye Management Inc. | 265,707 | $5,064,375 | |
| Large Walleye Capital LLC | 65,926 | $1,256,549 | |
| Large SEI INVESTMENTS CO | 54,940 | $1,047,156 | |
| Small Huntleigh Advisors, Inc. | 52,603 | $1,002,613 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 297,247 | $2,696,029 | |
| Large TWO SIGMA ADVISERS, LP | 21,213 | $192,401 | |
| Small Rothschild Wealth LLC | 19,000 | $172,330 | |
| Micro Perritt Capital Management Inc | 19,000 | $172,330 | |
| Mega AQR CAPITAL MANAGEMENT LLC | 14,172 | $128,540 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid UMB Bank, n.a. | $38 | 0.00% | 2 | Shares | Defined | 2026-05-11 | ||||
| Large TD Waterhouse Canada Inc. | $38 | 0.00% | 2 | Shares | Defined | 2026-05-12 | ||||
| Large JONES FINANCIAL COMPANIES LLLP | $38 | 0.00% | 2 | Shares | Sole | 2026-05-15 | ||||
| Mid Inspire Investing, LLC | $57 | 0.00% | 3 | Shares | Sole | 2026-04-23 | ||||
| Small Caitong International Asset Management Co., Ltd | $57 | 0.00% | 3 | Shares | Sole | 2026-05-11 | ||||
| Mid IFP Advisors, Inc | $95 | 0.00% | 5 | Shares | Sole | 2026-04-13 | ||||
| Mid Larson Financial Group LLC | $95 | 0.00% | 5 | Shares | Sole | 2026-05-15 | ||||
| Small NFSG Corp | $152 | 0.00% | 8 | Shares | Sole | 2026-05-05 | ||||
| Micro Main Street Group, LTD | $152 | 0.00% | 8 | Shares | Sole | 2026-05-06 | ||||
| Small Cassaday & Co Wealth Management LLC | $152 | 0.00% | 8 | Shares | Sole | 2026-05-07 | ||||
| Mid Advisory Services Network, LLC | $190 | 0.00% | 10 | Shares | Sole | 2026-05-15 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $190 | 0.00% | 10 | Shares | Defined | 2026-04-28 | ||||
| Large Federation des caisses Desjardins du Quebec | $247 | 0.00% | 13 | Shares | Defined | 2026-05-14 | ||||
| Small SOA Wealth Advisors, LLC. | $304 | 0.00% | 16 | Shares | Sole | 2026-05-20 | ||||
| Mid Smartleaf Asset Management LLC | $304 | 0.00% | 16 | Shares | Sole | 2026-05-15 | ||||
| Mid Allworth Financial LP | $343 | 0.00% | 18 | Shares | Sole | 2026-05-15 | ||||
| Mega FMR LLC | $438 | 0.00% | 23 | Shares | Defined | 2026-05-15 | ||||
| Mid MAI Capital Management | $552 | 0.00% | 29 | Shares | Sole | 2026-05-15 | ||||
| Small Key Financial Inc | $552 | 0.00% | 29 | Shares | Sole | 2026-04-24 | ||||
| Small Financial Management Professionals, Inc. | $857 | 0.00% | 45 | Shares | Sole | 2026-04-15 | ||||
| Small Darwin Wealth Management, LLC | $876 | 0.00% | 46 | Shares | Sole | 2026-05-01 | ||||
| Micro Strategic Investment Solutions, Inc. /IL | $953 | 0.00% | 50 | Shares | Sole | 2026-05-01 | ||||
| Small Activest Wealth Management | $953 | 0.00% | 50 | Shares | Sole | 2026-04-15 | ||||
| Small Axiom Investment Management LLC | $1,200 | 0.00% | 63 | Shares | Sole | 2026-05-26 | ||||
| Mid Arax Advisory Partners | $1,200 | 0.00% | 63 | Shares | Sole | 2026-05-13 | ||||
| Small Annis Gardner Whiting Capital Advisors, LLC | $1,524 | 0.00% | 80 | Shares | Sole | 2026-05-06 | ||||
| Mega JPMORGAN CHASE & CO | $1,676 | 0.00% | 88 | Shares | Defined | 2026-05-13 | ||||
| Mega WELLS FARGO & COMPANY/MN | $1,905 | 0.00% | 100 | Shares | Defined | 2026-05-11 | ||||
| Small MCF Advisors LLC | $1,906 | 0.00% | 100 | Shares | Sole | 2026-05-11 | ||||
| Mega CITIGROUP INC | $6,194 | 0.01% | 325 | Shares | Defined | 2026-05-11 | ||||
| Large OSAIC HOLDINGS, INC. | $7,166 | 0.01% | 376 | Shares | Defined | 2026-05-15 | ||||
| Mega ROYAL BANK OF CANADA Bank | $15,037 | 0.03% | 789 | Shares | Defined | 2026-05-15 | ||||
| Mega Vanguard Global Advisers, LLC | $39,358 | 0.08% | 2,065 | Shares | Defined | 2026-05-08 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $74,314 | 0.14% | 3,899 | Shares | Defined | 2026-05-13 | ||||
| Small THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | $85,749 | 0.17% | 4,499 | Shares | Sole | 2026-04-14 | ||||
| Mega UBS Group AG | $120,668 | 0.23% | 6,331 | Shares | Defined | 2026-05-05 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $269,412 | 0.52% | 14,135 | Shares | Sole | 2026-05-07 | ||||
| Mega NORTHERN TRUST CORP Bank | $277,704 | 0.54% | 14,570 | Shares | Defined | 2026-05-14 | ||||
| Micro Verdad Advisers, LP | $296,211 | 0.58% | 15,541 | Shares | Sole | 2026-05-15 | ||||
| Large Empowered Funds, LLC | $305,226 | 0.59% | 16,014 | Shares | Other | 2026-05-15 | ||||
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $305,226 | 0.59% | 16,014 | Shares | Sole | 2026-05-15 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $313,060 | 0.61% | 16,425 | Shares | Sole | 2026-05-15 | ||||
| Large Squarepoint Ops LLC | $341,021 | 0.66% | 17,892 | Shares | Defined | 2026-05-15 | ||||
| Mid Quadrature Capital Ltd | $356,174 | 0.69% | 18,687 | Shares | Other | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $400,830 | 0.78% | 21,030 | Shares | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $443,640 | 0.86% | 23,276 | Call | Defined | 2026-05-15 | ||||
| Mega BANK OF AMERICA CORP /DE/ Bank | $477,128 | 0.93% | 25,033 | Shares | Defined | 2026-05-18 | ||||
| Small TSP Capital Management Group, LLC | $477,567 | 0.93% | 25,056 | Principal | Sole | 2026-04-24 | ||||
| Small CORSAIR CAPITAL MANAGEMENT, L.P. | $486,963 | 0.95% | 25,549 | Shares | Sole | 2026-05-15 | ||||
| Mega STATE STREET CORP | $529,334 | 1.03% | 27,772 | Shares | Defined | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $604,202 | 1.17% | 31,700 | Put | Other | 2026-05-15 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $639,977 | 1.24% | 33,577 | Shares | Sole | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $655,435 | 1.27% | 34,388 | Shares | Defined | 2026-05-08 | ||||
| Small CM Management, LLC | $667,100 | 1.30% | 35,000 | Shares | Sole | 2026-05-08 | ||||
| Large MARSHALL WACE, LLP | $777,113 | 1.51% | 40,772 | Shares | Other | 2026-05-15 | ||||
| Small Informed Momentum Co LLC | $860,463 | 1.67% | 45,145 | Shares | Sole | 2026-05-13 | ||||
| Mega CITADEL ADVISORS LLC | $977,510 | 1.90% | 51,286 | Shares | Defined | 2026-05-15 | ||||
| Small Huntleigh Advisors, Inc. | $1,002,613 | 1.95% | 52,603 | Shares | Sole | 2026-04-21 | ||||
| Large SEI INVESTMENTS CO | $1,047,156 | 2.03% | 54,940 | Shares | Sole | 2026-05-13 | ||||
| Large Walleye Capital LLC | $1,256,549 | 2.44% | 65,926 | Shares | Sole | 2026-05-13 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $1,454,544 | 2.83% | 76,314 | Shares | Defined | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $1,514,049 | 2.94% | 79,436 | Shares | Defined | 2026-05-12 | ||||
| Mega BlackRock, Inc. | $1,716,067 | 3.33% | 90,035 | Shares | Sole | 2026-05-13 | ||||
| Large EDGEWOOD MANAGEMENT LLC | $2,049,274 | 3.98% | 107,517 | Shares | Sole | 2026-05-14 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,857,094 | 5.55% | 149,900 | Call | Other | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $4,357,096 | 8.47% | 228,599 | Shares | Sole | 2026-05-14 | ||||
| Small Opaleye Management Inc. | $5,064,375 | 9.84% | 265,707 | Shares | Sole | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $5,126,225 | 9.96% | 268,952 | Shares | Defined | 2026-05-15 | ||||
| Mid Nantahala Capital Management, LLC | $13,195,905 | 25.64% | 692,335 | Shares | Sole | 2026-05-15 | ||||
| No holders match your search. | ||||||||||