Julie Hambleton

CIK: 0001578771

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (14.3%)

Position reduction

Option Exercises (M)1 (14.3%)

Derivative conversions

Awards (A)3 (42.9%)

Compensation grants

Other (G, F, J, C, D, …)2 (28.6%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (3)

ERAS

Erasca, Inc.

Director

IGMS

IGM Biosciences, Inc.

Director

SWTX

SpringWorks Therapeutics, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (7 total)

ERAS
Erasca, Inc.
Jun 26, 2026
Award(A)
Stock option (right to buy)
Direct
29.9K shares-
IGMS
IGM Biosciences, Inc.
Aug 14, 2025
Disposition(D)
Direct
2K shares-
SWTX
SpringWorks Therapeutics, Inc.
Jul 1, 2025
Disposition(D)
Direct
14.2K shares-
ERAS
Erasca, Inc.
Jun 24, 2025
Award(A)
Stock option (right to buy)
Direct
120K shares-
SWTX
SpringWorks Therapeutics, Inc.
May 14, 2025
Award(A)
Direct
10.1K shares-
SWTX
SpringWorks Therapeutics, Inc.
Feb 10, 2025
Sale(S)
Direct
13.8K shares at avg. $53.01$730K
SWTX
SpringWorks Therapeutics, Inc.
Feb 10, 2025
Exercise(M)
Direct
13.8K shares at avg. $32.27$444K

		Type	Shares	Price		Ownership
Jun 26, 2026	ERAS Erasca, Inc.	Award(A) Stock option (right to buy)	29,888	-	-	Direct
Aug 14, 2025	IGMS IGM Biosciences, Inc.	Disposition(D)	2,000	-	-	Direct
Jul 1, 2025	SWTX SpringWorks Therapeutics, Inc.	Disposition(D)	14,155	-	-	Direct
Jun 24, 2025	ERAS Erasca, Inc.	Award(A) Stock option (right to buy)	120,000	-	-	Direct
May 14, 2025	SWTX SpringWorks Therapeutics, Inc.	Award(A)	10,060	-	-	Direct
Feb 10, 2025	SWTX SpringWorks Therapeutics, Inc.	Sale(S)	13,774	$53.01	$730,207	Direct
Feb 10, 2025	SWTX SpringWorks Therapeutics, Inc.	Exercise(M)	13,774	$32.27	$444,487	Direct

1-7 of 7 transactions

About Hambleton Julie

Hambleton Julie (SEC CIK 0001578771) files insider reports with the SEC as Director of Erasca, Inc. (ERAS), Director of IGM Biosciences, Inc. (IGMS) and Director of SpringWorks Therapeutics, Inc. (SWTX).

Signal8 holds 6 ownership filings by Hambleton Julie, all Form 4s, filed between Feb 12, 2025 and Jun 29, 2026. Those filings report 7 transactions, from Feb 10, 2025 to Jun 26, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Hambleton Julie's filings is in SAN DIEGO, CA.

Recent filings by Hambleton Julie

Jun 26, 2026: Grant or award of ERAS derivative securities (Form 4, code A).
Aug 14, 2025: Disposition to issuer transaction of IGMS shares (Form 4, code D).
Jul 1, 2025: Disposition to issuer transaction of SWTX shares (Form 4, code D).
Jun 24, 2025: Grant or award of ERAS derivative securities (Form 4, code A).
May 14, 2025: Grant or award of SWTX shares (Form 4, code A).

Other insiders filing for Erasca, Inc. (ERAS)

How to read Form 4 transaction codes