Briggs Morrison

CIK: 0001654430

Transaction Breakdown

Open Market Buys (P)2 (28.6%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (71.4%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

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

Companies & Roles (3)

ARVN

ARVINAS, INC.

Director

CRSP

CRISPR Therapeutics AG

Director

HOWL

Werewolf Therapeutics, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (7 total)

ARVN
ARVINAS, INC.
Jun 24, 2026
Award(A)
Direct
15.5K shares-
CRSP
CRISPR Therapeutics AG
Jun 5, 2026
Award(A)
Stock Option (Right to Buy)
Direct
13K shares-
ARVN
ARVINAS, INC.
Mar 6, 2026
Purchase(P)
Direct
20K shares at avg. $13.40$268K
ARVN
ARVINAS, INC.
Sep 22, 2025
Purchase(P)
Direct
30K shares at avg. $7.57$227K
ARVN
ARVINAS, INC.
Jun 25, 2025
Award(A)
Direct
16K shares-
HOWL
Werewolf Therapeutics, Inc.
Jun 12, 2025
Award(A)
Stock Option (right to buy)
Direct
27K shares-
CRSP
CRISPR Therapeutics AG
Jun 5, 2025
Award(A)
Stock Option (Right to Buy)
Direct
13K shares-

		Type	Shares	Price		Ownership
Jun 24, 2026	ARVN ARVINAS, INC.	Award(A)	15,527	-	$0	Direct
Jun 5, 2026	CRSP CRISPR Therapeutics AG	Award(A) Stock Option (Right to Buy)	13,000	-	-	Direct
Mar 6, 2026	ARVN ARVINAS, INC.	Purchase(P)	20,000	$13.40	$268,070	Direct
Sep 22, 2025	ARVN ARVINAS, INC.	Purchase(P)	30,000	$7.57	$227,010	Direct
Jun 25, 2025	ARVN ARVINAS, INC.	Award(A)	16,025	-	-	Direct
Jun 12, 2025	HOWL Werewolf Therapeutics, Inc.	Award(A) Stock Option (right to buy)	27,000	-	-	Direct
Jun 5, 2025	CRSP CRISPR Therapeutics AG	Award(A) Stock Option (Right to Buy)	13,000	-	-	Direct

1-7 of 7 transactions

About Morrison Briggs

Morrison Briggs (SEC CIK 0001654430) files insider reports with the SEC as Director of ARVINAS, INC. (ARVN), Director of CRISPR Therapeutics AG (CRSP) and Director of Werewolf Therapeutics, Inc. (HOWL).

Signal8 holds 9 ownership filings by Morrison Briggs (2 Form 3, 7 Form 4), filed between Jun 6, 2025 and Jun 26, 2026. Those filings report 7 transactions, from Jun 5, 2025 to Jun 24, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Morrison Briggs's filings is in BOSTON, MA.

Recent filings by Morrison Briggs

Jun 24, 2026: Grant or award of ARVN shares (Form 4, code A).
Jun 5, 2026: Grant or award of CRSP derivative securities (Form 4, code A).
Mar 6, 2026: Open-market purchase of ARVN shares (Form 4, code P).
Sep 22, 2025: Open-market purchase of ARVN shares (Form 4, code P).
Jun 25, 2025: Grant or award of ARVN shares (Form 4, code A).

Other insiders filing for ARVINAS, INC. (ARVN)

Smaldone Alsup Laurie, Director
Norwalk Leslie V, Director
Kennedy Edward Moore Jr., Director
Cunningham Everett, Director
Bain Linda, Director
Saik Andrew, Chief Financial Officer

How to read Form 4 transaction codes