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United States Pharmaceuticals

Assertio Holdings Inc (ASRT)

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The most recent insider trading activity occurred on November 10, 2025, with planned and proposed sales by David Matthew Stark. Prior to this, significant buying activity was observed in November 2024, with purchases by Heather L. Mason and Brendan P. O'Grady. Earlier transactions in June 2024 also showed buying from Heather L. Mason and Jeff L. Vacirca.
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Ticker: ASRT Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Stark David Matthew
1 sale — total 6,806 USD
Planned sale 10 Nov 2025
Value US$3,945,441.29 | Price 219.41 | Shares 50,974
Proposed sale 10 Nov 2025
Value US$256,301.69 | Price 55.51 | Shares 73,023
Buy 18 Nov 2024
Value US$60,000.00 | Price 0.80 | Shares 75,000
Buy 14 Nov 2024
Value US$9,950.49 | Price 0.85 | Shares 11,706
Buy 11 Jun 2024
Value US$11,100.00 | Price 1.11 | Shares 10,000
Buy 5 Jun 2024
Value US$24,250.00 | Price 0.97 | Shares 25,000
Sale 14 Mar 2024
Value US$11,462.67 | Price 1.12 | Shares 10,251
Proposed sale 14 Mar 2024
Value US$11,462.66 | Price 1.12 | Shares 10,251
Sale 12 Sep 2023
Value US$92,432.48 | Price 2.97 | Shares 31,121
Proposed sale 12 Sep 2023
Value US$93,674.21 | Price 3.01 | Shares 31,121
Sale 11 Sep 2023
Value US$137,440.54 | Price 3.04 | Shares 45,236
Sale 11 Sep 2023
Value US$322,593.04 | Price 3.07 | Shares 104,980
Sale 11 Sep 2023
Value US$195,794.50 | Price 3.04 | Shares 64,313
Proposed sale 11 Sep 2023
Value US$203,872.21 | Price 3.17 | Shares 64,313
Sale 11 Sep 2023
Value US$386,972.42 | Price 3.04 | Shares 127,281
Proposed sale 11 Sep 2023
Value US$137,440.54 | Price 3.04 | Shares 45,236
Proposed sale 11 Sep 2023
Value US$386,972.42 | Price 3.04 | Shares 127,281
Proposed sale 11 Sep 2023
Value US$322,593.04 | Price 3.07 | Shares 104,980
Planned sale 14 Aug 2023
Value US$69,044.80 | Price 3.14 | Shares 22,000
Proposed sale 14 Aug 2023
Value US$69,044.80 | Price 3.14 | Shares 22,000
Sale 19 May 2023
Value US$652,011.02 | Price 7.30 | Shares 89,286
Proposed sale 19 May 2023
Value US$651,787.80 | Price 7.30 | Shares 89,286
Proposed sale 5 May 2023
Value US$258,767.40 | Price 6.00 | Shares 43,143
Planned sale 5 May 2023
Value US$258,767.40 | Price 6.00 | Shares 43,143
Planned sale 12 May 2022
Value US$52,487.95 | Price 2.35 | Shares 22,322
Planned sale 12 May 2022
Value US$105,169.98 | Price 2.36 | Shares 44,643
Planned sale 11 Apr 2022
Value US$92,368.50 | Price 3.50 | Shares 26,391
Planned sale 5 Apr 2022
Value US$120,813.00 | Price 3.50 | Shares 34,518
Buy 20 May 2021
Value US$12,500.00 | Price 1.53 | Shares 8,170
Buy 20 May 2021
Value US$14,761.50 | Price 1.51 | Shares 9,750
Buy 20 May 2021
Value US$24,499.86 | Price 1.54 | Shares 15,909
Sale 24 Dec 2020
Value US$730,085.74 | Price 0.37 | Shares 1,982,851
Sale 23 Dec 2020
Value US$2,540,733.08 | Price 0.37 | Shares 6,784,334
Sale 22 Dec 2020
Value US$508,500.00 | Price 0.34 | Shares 1,500,000
Sale 21 Dec 2020
Value US$180,100.00 | Price 0.36 | Shares 500,000
Sale 18 Dec 2020
Value US$188,800.00 | Price 0.38 | Shares 500,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-11-12 2025-11-10 PlS Planned sale
Stark David Matthew
Non-Executive Director
50,974 +0.4%
219.41
US$3,945,441 		50,974 +0.4% 219.41 US$3,945,441
2025-11-10 2025-11-10 PrS Proposed sale
DAVID STARK

Director

Non-Executive Director
73,023
55.51
US$256,302 		73,023 55.51 US$256,302
2024-11-19 2024-11-18 B Purchase
4.0
Mason Heather L
Non-Executive Director
90,680 +16.4%
374.93
US$848,751 		90,680 +16.4% 374.93 US$848,751
2024-11-15 2024-11-14 B Purchase
2.2
O'Grady Brendan P.

CEO

Executive Director
11,706 +inf%
0.85
US$9,950 		11,706 +inf% 0.85 US$9,950
2024-06-12 2024-06-11 B Purchase
2.6
Vacirca Jeff L
Non-Executive Director
10,000 +7.1%
1.11
US$11,100 		10,000 +7.1% 1.11 US$11,100
2024-06-06 2024-06-05 B Purchase
4.0
Mason Heather L

Interim Executive Officer

Executive Director
25,000 +13.3%
0.97
US$24,250 		25,000 +13.3% 0.97 US$24,250
2024-03-15 2024-03-14 S Sale
3.3
Tyree James L
Non-Executive Director
10,251 -5.2%
1.12
US$11,463 		10,251 -5.2% 1.12 US$11,463
2024-03-14 2024-03-14 PrS Proposed sale
3.3
Tyree James L

Director

Non-Executive Director
10,251
1.12
US$11,463 		10,251 1.12 US$11,463
2023-09-13 2023-09-12 S Sale
3.3
Peisert Daniel A.

President & CEO

Executive Director
31,121 -8.7%
2.97
US$92,432 		31,121 -8.7% 2.97 US$92,432
2023-09-12 2023-09-12 PrS Proposed sale
3.3
Daniel A Peisert

Officer

Officer
31,121
3.01
US$93,674 		31,121 3.01 US$93,674
2023-09-13 2023-09-11 S Sale
3.3
Schlessinger Sam

SVP, General Counsel

Officer
45,236 -39.6%
3.04
US$137,441 		45,236 -39.6% 3.04 US$137,441
2023-09-13 2023-09-11 S Sale
3.3
Schwichtenberg Paul

SVP and CFO

Officer
104,980 -62.0%
3.07
US$322,593 		104,980 -62.0% 3.07 US$322,593
2023-09-13 2023-09-11 S Sale
2.7
Patel Ajay

SVP and CAO

Officer
64,313 -40.7%
3.04
US$195,794 		64,313 -40.7% 3.04 US$195,794
2023-09-13 2023-09-11 S Sale
3.3
Peisert Daniel A.

President & CEO

Executive Director
127,281 -26.3%
3.04
US$386,972 		127,281 -26.3% 3.04 US$386,972
2023-09-11 2023-09-11 PrS Proposed sale
2.7
Patel Ajay

Officer

Officer
64,313
3.17
US$203,872 		64,313 3.17 US$203,872
2023-09-11 2023-09-11 PrS Proposed sale
3.3
SAM SCHLESSINGER

Officer

Officer
45,236
3.04
US$137,441 		45,236 3.04 US$137,441
2023-09-11 2023-09-11 PrS Proposed sale
3.3
DANIEL PEISERT

Officer

Officer
127,281
3.04
US$386,972 		127,281 3.04 US$386,972
2023-09-11 2023-09-11 PrS Proposed sale
3.3
PAUL SCHWICHTENBERG

Officer

Officer
104,980
3.07
US$322,593 		104,980 3.07 US$322,593
2023-08-15 2023-08-14 PlS Planned sale
MCKEE WILLIAM
Non-Executive Director
22,000 -8.4%
3.14
US$69,045 		22,000 -8.4% 3.14 US$69,045
2023-08-14 2023-08-14 PrS Proposed sale
WILLIAM MCKEE

Director

Non-Executive Director
22,000
3.14
US$69,045 		22,000 3.14 US$69,045
2023-05-22 2023-05-19 S Sale
4.0
Mason Heather L
Non-Executive Director
89,286 -32.2%
7.30
US$652,011 		89,286 -32.2% 7.30 US$652,011
2023-05-19 2023-05-19 PrS Proposed sale
4.0
Mason Heather L

Director

Non-Executive Director
89,286
7.30
US$651,788 		89,286 7.30 US$651,788
2023-05-05 2023-05-05 PrS Proposed sale
3.3
JAMES TYREE

Director

Non-Executive Director
43,143
6.00
US$258,767 		43,143 6.00 US$258,767
2023-05-05 2023-05-05 PlS Planned sale
3.3
Tyree James L
Non-Executive Director
43,143 -20.5%
6.00
US$258,767 		43,143 -20.5% 6.00 US$258,767
2022-05-16 2022-05-12 PlS Planned sale
MCKEE WILLIAM
Non-Executive Director
22,322 -8.9%
2.35
US$52,488 		22,322 -8.9% 2.35 US$52,488
2022-05-16 2022-05-12 PlS Planned sale
3.3
Tyree James L
Non-Executive Director
44,643 -17.5%
2.36
US$105,170 		44,643 -17.5% 2.36 US$105,170
2022-04-13 2022-04-11 PlS Planned sale
3.3
Peisert Daniel A.

President and CEO

Executive Director
26,391 -14.3%
3.50
US$92,368 		26,391 -14.3% 3.50 US$92,368
2022-04-07 2022-04-05 PlS Planned sale
3.3
Peisert Daniel A.

President and CEO

Executive Director
34,518 -15.7%
3.50
US$120,813 		34,518 -15.7% 3.50 US$120,813
2021-05-24 2021-05-20 B Purchase
2.7
Patel Ajay

SVP and CAO

Officer
8,170 +81.5%
1.53
US$12,500 		8,170 +81.5% 1.53 US$12,500
2021-05-24 2021-05-20 B Purchase
3.3
Schwichtenberg Paul

SVP and CFO

Officer
9,750 +70.8%
1.51
US$14,762 		9,750 +70.8% 1.51 US$14,762
2021-05-24 2021-05-20 B Purchase
3.3
Peisert Daniel A.

President and CEO

Executive Director
15,909 +21.6%
1.54
US$24,500 		15,909 +21.6% 1.54 US$24,500
2020-12-29 2020-12-24 S Sale
3.6
CR Group L.P.
Large shareholder
1,982,851 -90.8%
0.37
US$730,086 		1,982,851 -90.8% 0.37 US$730,086
2020-12-29 2020-12-23 S Sale
3.6
CR Group L.P.
Large shareholder
6,784,334 -75.7%
0.37
US$2,540,733 		6,784,334 -75.7% 0.37 US$2,540,733
2020-12-22 2020-12-22 S Sale
3.6
CR Group L.P.
Large shareholder
1,500,000 -14.3%
0.34
US$508,500 		1,500,000 -14.3% 0.34 US$508,500
2020-12-22 2020-12-21 S Sale
3.6
CR Group L.P.
Large shareholder
500,000 -4.6%
0.36
US$180,100 		500,000 -4.6% 0.36 US$180,100
2020-12-22 2020-12-18 S Sale
3.6
CR Group L.P.
Large shareholder
500,000 -4.4%
0.38
US$188,800 		500,000 -4.4% 0.38 US$188,800
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