Arvinas accounting chief sells 232 shares for taxes

The sale covered tax withholding on settlement of 25% of the RSUs granted to Loomis on December 13, 2022.

Available on EDGAR 11/09/2026 - 06:05 PM EST Accepted by SEC EDGAR 11/09/2026 - 06:04 PM EST

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Rhea-AI Filing Summary

Arvinas, Inc. (ARVN) reported that 232 shares of common stock held directly by VP and Chief Accounting Officer David K. Loomis were sold on November 9, 2026, at $6.3594 per share. The issuer made the sale automatically under a durable sale instruction to cover tax withholding when 25% of Loomis’s restricted stock units granted on December 13, 2022, vested and settled; the sale was not discretionary. The transaction was reported under a Rule 10b5-1 plan. Loomis directly held 39,961 shares following the transaction.

Insider Trade Summary 10b5-1

Net Seller: 232 shares

Net Sell 1 txn

Insider Loomis David K

Role VP, Chief Accounting Officer

Sold 232 shs ($1K)

Type	Security	Shares	Price	Value
Sale	Common Stock ^F1	232	$6.3594	$1K

Holdings After Transaction: Common Stock — 39,961 shares (Direct)

Footnotes (1)

F1. This sale was made automatically by the Issuer to cover tax withholding obligations in connection with the vesting and settlement of 25% of the reporting person's restricted stock units (RSUs) granted on December 13, 2022, pursuant to a durable sale instruction. The sale does not represent a discretionary trade.

Key Figures

Common shares sold: 232 shares Sale price: $6.3594 per share Direct shares following transaction: 39,961 shares +1 more

4 metrics

Common shares sold 232 shares November 9, 2026; sale made automatically to cover tax withholding

Sale price $6.3594 per share November 9, 2026

Direct shares following transaction 39,961 shares David K. Loomis’s reported direct holdings after the sale

RSUs vested and settled 25% Restricted stock units granted December 13, 2022

Key Terms

restricted stock units (RSUs), tax withholding obligations, durable sale instruction, Rule 10b5-1 plan

4 terms

restricted stock units (RSUs) financial

"vesting and settlement of 25% of the reporting person's restricted stock units (RSUs)"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

tax withholding obligations financial

"to cover tax withholding obligations in connection with the vesting and settlement"

durable sale instruction financial

"pursuant to a durable sale instruction"

Rule 10b5-1 plan regulatory

"The transaction was reported under a Rule 10b5-1 plan"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

FAQ

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How many shares did ARVN's chief accounting officer sell, and at what price?

VP and Chief Accounting Officer David K. Loomis’s reported sale was 232 shares at $6.3594 per share on November 9, 2026. He directly held 39,961 shares following the transaction.

Why were shares sold by ARVN's chief accounting officer?

Arvinas made the sale automatically to cover tax withholding obligations connected with the vesting and settlement of 25% of David K. Loomis’s restricted stock units granted on December 13, 2022. The sale was made pursuant to a durable sale instruction and was not discretionary.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Loomis David K

(Last)

(First)

(Middle)

C/O ARVINAS, INC.

5 SCIENCE PARK, 395 WINCHESTER AVE.

(Street)

NEW HAVEN

CONNECTICUT

06511

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ARVINAS, INC. [ ARVN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	VP, Chief Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	11/09/2026		S		232⁽¹⁾	D	$6.3594	39,961	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. This sale was made automatically by the Issuer to cover tax withholding obligations in connection with the vesting and settlement of 25% of the reporting person's restricted stock units (RSUs) granted on December 13, 2022, pursuant to a durable sale instruction. The sale does not represent a discretionary trade.

Remarks:

	/s/ Jared Freedberg, as attorney-in-fact for David K Loomis	11/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR