Randy Teel - 26 Feb 2026 Form 4/A - Amendment Insider Report for ARVINAS, INC. (ARVN)

Role: President and CEO, Director
Signature: /s/ Jared Freedberg, as attorney-in-fact for Randy Teel
Issuer symbol: ARVN
Transactions as of: 26 Feb 2026
Net transactions value: $0
Form type: 4/A - Amendment
Filing time: 12 Mar 2026, 17:40:35 UTC
Date Of Original Report: 02 Mar 2026
Previous filing: 25 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Teel Randy	President and CEO, Director	C/O ARVINAS, INC., 5 SCIENCE PARK, 395 WINCHESTER AVE., NEW HAVEN	/s/ Jared Freedberg, as attorney-in-fact for Randy Teel	12 Mar 2026	0002015998

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ARVN	Common Stock	Award		+147,179	+98%	$0.000000^*	296,875	26 Feb 2026	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The restricted stock units (each, an "RSU") were granted by the Issuer on February 26, 2026, pursuant to its 2018 Stock Incentive Plan (the "Plan"), and each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement for no consideration. The RSUs will vest over four years: one-quarter of the RSUs will vest on each of February 12, 2027, February 12, 2028, February 12, 2029 and February 12, 2030, subject to the Reporting Person's continued service with the Issuer on each such vesting date.
F2	This amendment is being filed to correct an inadvertent clerical error in reporting the number of RSUs awarded on February 26, 2026. The correct number of RSUs awarded was 147,179, not 147,791, as was originally reported on the Form 4 filed on March 2, 2026. Column 5, the amount of securities beneficially owned following reported transaction(s), has also been corrected accordingly.

Content

The restricted stock units (each, an "RSU") were granted by the Issuer on February 26, 2026, pursuant to its 2018 Stock Incentive Plan (the "Plan"), and each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement for no consideration. The RSUs will vest over four years: one-quarter of the RSUs will vest on each of February 12, 2027, February 12, 2028, February 12, 2029 and February 12, 2030, subject to the Reporting Person's continued service with the Issuer on each such vesting date.

This amendment is being filed to correct an inadvertent clerical error in reporting the number of RSUs awarded on February 26, 2026. The correct number of RSUs awarded was 147,179, not 147,791, as was originally reported on the Form 4 filed on March 2, 2026. Column 5, the amount of securities beneficially owned following reported transaction(s), has also been corrected accordingly.