Amgen (NASDAQ: AMGN) EVP Santos has shares withheld for taxes

Rhea-AI Filing Summary

Amgen Inc. executive Esteban Santos, EVP of Operations, reported an automatic share disposition tied to taxes rather than an open-market trade. On March 16, 2026, 5,621 shares of common stock were transferred at $366.21 per share to satisfy a tax liability by delivering securities.

After this transaction, Santos directly holds 82,404 common shares, which include 696 Dividend Equivalents that will pay out in shares as restricted stock units vest. He also has an additional indirect holding of 909.9928 shares through Amgen's 401(k) Plan stock fund.

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

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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^*

Santos Esteban

(Last) (First) (Middle)

ONE AMGEN CENTER DRIVE

(Street)

THOUSAND OAKS CALIFORNIA 91320-1799

(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)
	EVP, Operations

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

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	03/16/2026		F		5,621	D	$366.21	82,404(1)	D
Common Stock								909.9928(2)	I	401K Plan

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 696 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.

2. These shares are acquired under the Company's 401(k) Plan and represent interests in the Company's stock fund as of this filing.

	/s/ Esteban Santos	03/16/2026
	** 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) EVP Esteban Santos report?

Amgen EVP Esteban Santos reported an automatic tax-related share disposition. On March 16, 2026, 5,621 common shares were delivered at $366.21 per share to cover a tax liability, rather than being sold in an open-market transaction.

How many Amgen (AMGN) shares does Esteban Santos hold after this Form 4?

Following the reported transaction, Esteban Santos directly holds 82,404 Amgen common shares. This direct stake includes 696 Dividend Equivalents tied to unvested restricted stock units. He also holds 909.9928 additional shares indirectly through the company’s 401(k) Plan stock fund.

Was the Amgen (AMGN) Form 4 transaction an open-market sale of shares?

No, the Form 4 shows a tax-withholding disposition, not an open-market sale. The 5,621 shares were delivered to satisfy a tax liability by delivering securities, consistent with code F, which covers payment of exercise price or taxes using shares.

What does the tax-withholding code F mean in the Amgen (AMGN) Form 4?

Transaction code F indicates shares were used to pay taxes or exercise costs. In this case, 5,621 Amgen shares were transferred at $366.21 each to satisfy a tax obligation, so the event is administrative rather than a discretionary buy or sell decision.

What are the Dividend Equivalents mentioned in Esteban Santos’s Amgen (AMGN) filing?

Dividend Equivalents are credits linked to unvested restricted stock units. Santos’s holdings include 696 such units, which will pay out in Amgen common shares on a one-to-one basis as the underlying restricted stock units vest, plus cash for any fractional share amount.

How are Amgen (AMGN) shares held in the 401(k) Plan reported for Esteban Santos?

The filing shows 909.9928 shares held indirectly through Amgen’s 401(k) Plan. These represent interests in the plan’s company stock fund as of the filing date and are reported separately from Santos’s directly owned Amgen common shares.