Assertio Holdings, Inc.
Total Trades
16
Buys
4
Sells
12
Largest Trade
$500K+
Insiders
10
Institutional Funds
36
Inst. Value
$1M+
Activist Filings
13
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Stark David Matthew | Director | SELL | $1K–$15K | 9K | $0.76 | Nov 12, 2025 |
| Mason Heather L | Director | BUY | $50K–$100K | 75K | $0.80 | Nov 19, 2024 |
| O'Grady Brendan P. | CEO | BUY | $1K–$15K | 12K | $0.85 | Nov 15, 2024 |
| Vacirca Jeff L | Director | BUY | $1K–$15K | 10K | $1.11 | Jun 12, 2024 |
| Mason Heather L | Interim Executive … | BUY | $15K–$50K | 25K | $0.97 | Jun 6, 2024 |
| Schlessinger Sam | SVP, General Counsel | SELL | $100K–$500K | 45K | $3.04 | Sep 14, 2023 |
| Patel Ajay | SVP and CAO | SELL | $100K–$500K | 64K | $3.04 | Sep 14, 2023 |
| Schwichtenberg Paul | SVP and CFO | SELL | $100K–$500K | 105K | $3.07 | Sep 14, 2023 |
| Peisert Daniel A. | President & CEO | SELL | $100K–$500K | 158K | $3.03 | Sep 14, 2023 |
| MCKEE WILLIAM | Director | SELL | $50K–$100K | 22K | $3.14 | Aug 15, 2023 |
| Mason Heather L | Director | SELL | $500K+ | 89K | $7.30 | May 23, 2023 |
| Tyree James L | Director | SELL | $100K–$500K | 43K | $6.00 | May 6, 2023 |
| Tyree James L | Director | SELL | $100K–$500K | 45K | $2.36 | May 16, 2022 |
| MCKEE WILLIAM | Director | SELL | $50K–$100K | 22K | $2.35 | May 16, 2022 |
| Peisert Daniel A. | President and CEO | SELL | $50K–$100K | 26K | $3.50 | Apr 13, 2022 |
| Peisert Daniel A. | President and CEO | SELL | $100K–$500K | 35K | $3.50 | Apr 7, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 36 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Nantahala Capital Management, LLC | 587K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 191K | $1M+ | SH |
| EDGEWOOD MANAGEMENT LLC | 108K | $500K+ | SH |
| BlackRock, Inc. | 90K | $500K+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 56K | $500K+ | SH |
| CM Management, LLC | 50K | $100K–$500K | SH |
| STATE STREET CORP | 26K | $100K–$500K | SH |
| TSP Capital Management Group, LLC | 25K | $100K–$500K | PRN |
| MORGAN STANLEY | 24K | $100K–$500K | SH |
| Empowered Funds, LLC | 15K | $100K–$500K | SH |
| Empowered Funds, LLC | 15K | $100K–$500K | SH |
| AQR CAPITAL MANAGEMENT LLC | 14K | $100K–$500K | SH |
| JANE STREET GROUP, LLC | 12K | $100K–$500K | SH |
| THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | 4K | $15K–$50K | SH |
| VANGUARD GROUP INC | 2K | $15K–$50K | SH |
| ACADIAN ASSET MANAGEMENT LLC | 2K | $15K–$50K | SH |
| MINDSET WEALTH MANAGEMENT, LLC | 139 | $1K–$15K | SH |
| WELLS FARGO & COMPANY/MN | 82 | <$1K | SH |
| Arax Advisory Partners | 63 | <$1K | SH |
| BNP PARIBAS FINANCIAL MARKETS | 60 | <$1K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Nantahala Capital Management, LLC
SC 13G/A · Nov 14, 2024
9.4%
8.9M shares
SC 13G/A · Nov 14, 2024
0.0%
0 shares
SC 13G/A · Nov 12, 2024
4.7%
4.5M shares
SC 13G/A · Nov 4, 2024
4.7%
4.5M shares
SC 13G/A · Jul 8, 2024
1.5%
1.4M shares
Nantahala Capital Management, LLC
SC 13G · Feb 14, 2024
8.0%
7.6M shares
SC 13G/A · Feb 14, 2024
0.0%
0 shares
SC 13G/A · Feb 14, 2024
6.1%
5.8M shares
The Vanguard Group - 23-1945930
SC 13G · Feb 13, 2024
5.2%
4.9M shares
SC 13G · Jan 26, 2024
6.9%
6.6M shares
SC 13G · May 5, 2023
1.0%
96K shares
Renaissance Technologies LLC 26-0385758
SC 13G/A · Feb 10, 2022
0.0%
13K shares
Highbridge Capital Management, LLC
SC 13G/A · Jan 27, 2022
0.0%
0 shares