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Insider · CIK 0001722360

David Matthew Stark

director

Files at ASRT (Assertio Holdings, Inc.). First filing Nov 12, 2025, latest Nov 12, 2025.

David Matthew Stark files SEC Form 4 as director at ASRT (Assertio Holdings, Inc.). Since Nov 12, 2025, David Matthew Stark has reported 0 open-market buys worth $0 and 1 open-market sell worth $6,806, the latest filed on Nov 12, 2025.

A track record needs three past buys with six months of prices behind them; David Matthew Stark has 0, so none is measured yet.

The newest scored trade: sold $6,806 of ASRT on Nov 10, 2025, filed Nov 12, 2025, scored 0 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 1 sell worth $6,806.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $6,806 sold

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
0Weak
ASRTsell10b5-1
Assertio Holdings, Inc.
$6,806
8,959 shares
-8%-

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Nov 10, 2025 ASRT
ASSERTIO HOLDINGS, INC.
8,959
0.01% of outstanding
$6,806Nov 10, 2025none

Transactions

Every row this insider has filed, 9 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jun 16, 2026ASRT
Assertio Holdings, Inc.
UTender of shares
Common Stock
-11,420$0.00$00Jun 16, 2026
Jun 16, 2026ASRT
Assertio Holdings, Inc.
DDisposition to issuer
Stock Option (Right to Buy)derivative
-5,415--0Jun 16, 2026
Jun 16, 2026ASRT
Assertio Holdings, Inc.
DDisposition to issuer
Stock Option (Right to Buy)derivative
-5,415--0Jun 16, 2026
May 5, 2026ASRT
Assertio Holdings, Inc.
AGrant or award
Common Stock
+4,851$0.00$011,420May 6, 2026
Nov 10, 2025ASRT
Assertio Holdings, Inc.
SOpen-market sale
Common Stock10b5-1
-8,959$0.76$6,80698,541Nov 12, 2025
May 7, 2025ASRT
Assertio Holdings, Inc.
AGrant or award
Common Stock
+53,750$0.00$0107,500May 9, 2025
May 7, 2025ASRT
Assertio Holdings, Inc.
AGrant or award
Stock Option (right to buy)derivative
+81,225$0.00$081,225May 9, 2025
Nov 7, 2024ASRT
Assertio Holdings, Inc.
AGrant or award
Common Stock
+53,750$0.00$053,750Nov 12, 2024
Nov 7, 2024ASRT
Assertio Holdings, Inc.
AGrant or award
Stock Option (right to buy)derivative
+81,225$0.00$081,225Nov 12, 2024

Questions about David Matthew Stark

Answered from the filings on this page, as of the latest one.

Is David Matthew Stark buying or selling?

In the last 12 months David Matthew Stark reported 0 open-market buys worth $0 and 1 open-market sell worth $6,806 on SEC Form 4; the latest was sold $6,806 of ASRT on Nov 10, 2025. Grants, option exercises and tax withholding are not counted.

How did David Matthew Stark's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and David Matthew Stark has 0.

Where does David Matthew Stark file Form 4?

David Matthew Stark has filed Form 4 at ASRT (Assertio Holdings, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

David Matthew Stark: insider trades and track record | InsiderTell