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Insider · CIK 0001378589

Mary Kay Fenton

cfoofficer

Files at CGEM (Cullinan Therapeutics, Inc.). First filing Feb 23, 2026, latest Feb 23, 2026.

In brief

Mary Kay Fenton files SEC Form 4 as CFO at CGEM (Cullinan Therapeutics, Inc.). Since Feb 23, 2026, Mary Kay Fenton has reported 0 open-market buys worth $0 and 1 open-market sell worth $60k, the latest filed on Feb 23, 2026.

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

The newest scored trade: sold $60k of CGEM on Feb 20, 2026, filed Feb 23, 2026, scored 44 (moderate). In the last 12 months: 0 buys worth $0 and 1 sell worth $60k.

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, $60k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

CGEM: Cullinan Therapeutics, Inc.

CGEMOct 9, 2026 · close 15.53

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

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

ScoreCompanyValueHoldingsPrice contextFiled
44Moderate
CGEMsell 5
Cullinan Therapeutics, Inc.
$60k
4,398 shares
-3%+137% from low-2% from high

Transactions

Every row this insider has filed, 7 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jun 30, 2026CGEM
Cullinan Therapeutics, Inc.
AGrant or award
Common Stock
+1,541$8.60$13k127,921Jul 2, 2026
Feb 20, 2026CGEM
Cullinan Therapeutics, Inc.
SOpen-market sale
Common Stock
-4,398$13.62$60k126,380Feb 23, 2026
Feb 18, 2026CGEM
Cullinan Therapeutics, Inc.
AGrant or award
Common Stock
+68,750$0.00$0130,778Feb 19, 2026
Feb 18, 2026CGEM
Cullinan Therapeutics, Inc.
AGrant or award
Stock Option (Right to Buy)derivative
+137,500$0.00$0137,500Feb 19, 2026
Dec 31, 2025CGEM
Cullinan Therapeutics, Inc.
AGrant or award
Common Stock
+27$6.49$17562,028Jan 5, 2026
Feb 19, 2025CGEM
Cullinan Therapeutics, Inc.
AGrant or award
Common Stock
+60,000$0.00$060,000Feb 21, 2025
Feb 19, 2025CGEM
Cullinan Therapeutics, Inc.
AGrant or award
Stock Option (Right to Buy)derivative
+120,000$0.00$0120,000Feb 21, 2025

Questions about Mary Kay Fenton

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

Is Mary Kay Fenton buying or selling?

In the last 12 months Mary Kay Fenton reported 0 open-market buys worth $0 and 1 open-market sell worth $60k on SEC Form 4; the latest was sold $60k of CGEM on Feb 20, 2026. Grants, option exercises and tax withholding are not counted.

How did Mary Kay Fenton's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mary Kay Fenton has 0.

Where does Mary Kay Fenton file Form 4?

Mary Kay Fenton has filed Form 4 at CGEM (Cullinan Therapeutics, Inc.) as Chief Financial Officer. 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.

Mary Kay Fenton: insider trades and track record | InsiderTell