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Insider · CIK 0001578771

Julie Hambleton

director

Files at IGMS (IGM Biosciences, Inc.), ERAS (Erasca, Inc.), SWTX (SpringWorks Therapeutics, Inc.). First filing Feb 12, 2025, latest Feb 12, 2025.

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, $730k sold

Signals

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

ScoreCompanyValueHoldingsPrice contextFiled
36Weak
SWTXsell 410b5-1
SpringWorks Therapeutics, Inc.
$730k
13,774 shares
-77%-

Transactions

Every row this insider has filed, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Aug 14, 2025IGMS
IGM Biosciences, Inc.
DDisposition to issuer
Common Stock
-2,000--0Aug 14, 2025
Jul 1, 2025SWTX
SpringWorks Therapeutics, Inc.
DDisposition to issuer
Common Stock
-14,155--0Jul 2, 2025
Jul 1, 2025SWTX
SpringWorks Therapeutics, Inc.
DDisposition to issuer
Stock Option (Right to Buy)derivative
-14,668--0Jul 2, 2025
Jul 1, 2025SWTX
SpringWorks Therapeutics, Inc.
DDisposition to issuer
Stock Option (Right to Buy)derivative
-15,318--0Jul 2, 2025
Jul 1, 2025SWTX
SpringWorks Therapeutics, Inc.
DDisposition to issuer
Stock Option (Right to Buy)derivative
-12,216--0Jul 2, 2025
Jun 24, 2025ERAS
Erasca, Inc.
AGrant or award
Stock option (right to buy)derivative
+120,000$0.00$0120,000Jun 26, 2025
May 14, 2025SWTX
SpringWorks Therapeutics, Inc.
AGrant or award
Common Stock
+10,060$0.00$014,155May 15, 2025
Feb 10, 2025SWTX
SpringWorks Therapeutics, Inc.
MOption exercise
Common Stock10b5-1
+13,774$32.27$444k17,869Feb 12, 2025
Feb 10, 2025SWTX
SpringWorks Therapeutics, Inc.
SOpen-market sale
Common Stock10b5-1
-13,774$53.01$730k4,095Feb 12, 2025
Feb 10, 2025SWTX
SpringWorks Therapeutics, Inc.
MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-13,774$0.00$00Feb 12, 2025

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.

Julie Hambleton: insider trades and track record | InsiderTell