Amgen (AMGN) VP Matthew Busch reports 41-share tax-withholding transaction

Rhea-AI Filing Summary

Amgen VP, Finance & CAO Matthew C. Busch reported a small tax-related share disposition. On the transaction date, 41 shares of Amgen common stock were withheld at $331.11 per share to cover tax obligations related to equity compensation. After this non-market tax-withholding event, Busch directly held 4,344 Amgen shares, which include 39 Dividend Equivalents tied to unvested Restricted Stock Units under the company’s equity incentive plan.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Busch Matthew C.

Role VP, Finance & CAO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	41	$331.11	$14K

Holdings After Transaction: Common Stock — 4,344 shares (Direct, null)

Footnotes (1)

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Key Figures

Tax-withholding shares: 41 shares Withholding price: $331.11 per share Post-transaction holdings: 4,344 shares +1 more

4 metrics

Tax-withholding shares 41 shares Common stock withheld for taxes on 2026-05-07

Withholding price $331.11 per share Value used for tax-withholding disposition

Post-transaction holdings 4,344 shares Direct Amgen common stock held after transaction

Dividend Equivalents included 39 DEs Credited to unvested RSUs under equity incentive plan

Key Terms

tax-withholding disposition, Dividend Equivalents, Restricted Stock Units, Equity Incentive Plan

4 terms

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Dividend Equivalents financial

"These shares include 39 Dividend Equivalents (DEs) granted pursuant to the Amgen Inc. Second Amended and Restated 2009 Equity Incentive Plan"

Payments tied to employee or contractor equity awards that mirror the cash dividends paid on the company’s stock; they give the holder the same economic benefit as owning the shares without transferring actual shares—often paid in cash or additional award units when the award becomes payable. Investors care because these payments affect a company’s compensation costs, cash flow and potential share dilution, and they signal how management is being rewarded and aligned with shareholders.

Restricted Stock Units financial

"DEs are credited to the reporting person's unvested Restricted Stock Units and are paid out in shares"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Equity Incentive Plan financial

"granted pursuant to the Amgen Inc. Second Amended and Restated 2009 Equity Incentive Plan"

An equity incentive plan is a program that gives employees, executives or directors the right to receive company stock or options to buy stock as part of their pay. Think of it as offering slices of future company profit to motivate people to boost long‑term performance; for investors it matters because it can align employee goals with shareholder value but also increases the number of shares outstanding, which can dilute existing ownership.

Form 4 Insider Transactions: What Each Field Means →

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^*

Busch Matthew C.

(Last) (First) (Middle)

ONE AMGEN CENTER DRIVE

(Street)

THOUSAND OAKS CALIFORNIA 91320

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AMGEN INC [ AMGN ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Finance & CAO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/07/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/07/2026		F		41	D	$331.11	4,344(1)	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These shares include 39 Dividend Equivalents (DEs) granted pursuant to the Amgen Inc. Second Amended and Restated 2009 Equity Incentive Plan and subject to a qualifying dividend reinvestment plan. DEs are credited to the reporting person's unvested Restricted Stock Units and are paid out in shares of the Company's common stock on a one-to-one basis according to the vesting schedule, along with a cash payment for any remaining fractional share amount.

	/s/ Matthew C. Busch	05/08/2026
	** 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)

FAQ

What insider transaction did Amgen (AMGN) disclose for Matthew C. Busch?

Amgen disclosed that Matthew C. Busch had 41 shares of common stock withheld to cover tax liabilities. This tax-withholding disposition is linked to equity compensation and is not an open-market sale, so it functions as an administrative adjustment rather than a discretionary trade.

Was the Amgen (AMGN) Form 4 transaction a market sale of shares?

No, the Form 4 shows a tax-withholding disposition of 41 shares, not an open-market sale. Shares were surrendered at a reported price of $331.11 each to satisfy tax obligations arising from equity awards, a routine administrative event for compensation.

How many Amgen (AMGN) shares does Matthew C. Busch hold after the Form 4 event?

Following the tax-withholding transaction, Matthew C. Busch directly holds 4,344 Amgen common shares. This total includes 39 Dividend Equivalents credited to his unvested Restricted Stock Units under Amgen’s equity incentive plan and paid in shares according to the vesting schedule.

What does the ‘F’ transaction code mean in the Amgen (AMGN) Form 4?

The ‘F’ code on the Amgen Form 4 indicates payment of an exercise price or tax liability by delivering securities. In this case, 41 shares were withheld to cover tax obligations on equity compensation, rather than being sold on the open market for cash proceeds.

What are Dividend Equivalents mentioned in the Amgen (AMGN) Form 4 footnote?

Dividend Equivalents are credits that mirror dividends on unvested Restricted Stock Units, granted under Amgen’s equity plan. For Matthew C. Busch, 39 Dividend Equivalents are credited and paid out in common shares on a one-to-one basis as the underlying RSUs vest over time.

Does the Amgen (AMGN) Form 4 indicate any remaining derivative positions for Busch?

No, the derivativeSummary in this Form 4 is empty, indicating no derivative transactions were reported in this filing. The reported activity relates only to non-derivative common stock withheld for tax purposes, with no options or other derivative exercises disclosed here.