Emergent BioSolutions SVP has 694 shares withheld for taxes

Emergent BioSolutions Inc. senior vice president of the Products Business, Paul Anthony Williams, reported a routine tax-related share disposition.

Rhea-AI Filing Summary

Emergent BioSolutions Inc. senior vice president of the Products Business, Paul Anthony Williams, reported a routine tax-related share disposition. On the vesting and settlement of restricted stock units, 694 shares of common stock were withheld at $8.00 per share to cover associated tax obligations.

Following this withholding, Williams directly holds 162,098 shares of Emergent BioSolutions common stock. The transaction was not an open-market sale but a standard payment of tax liability using shares received from equity compensation.

Insider Trade Summary

Exercise Price or Tax Liability: 694 shares

Exercise Price or Tax Liability 1 txn

Insider Williams Paul Anthony

Role SVP, Products Business

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	694	$8.00	$6K

Holdings After Transaction: Common Stock — 162,098 shares (Direct)

Footnotes (1)

1. F1. Represents shares of common stock withheld to pay taxes associated with vesting and settlement of restricted stock units.

Key Figures

Shares withheld for taxes: 694 shares Per-share tax value: $8.00 per share Shares held after transaction: 162,098 shares

3 metrics

Shares withheld for taxes 694 shares Common stock withheld for RSU tax liability

Per-share tax value $8.00 per share Value applied to withheld common shares

Shares held after transaction 162,098 shares Direct common stock holdings after tax withholding

Key Terms

restricted stock units, tax-withholding disposition, Form 4

3 terms

restricted stock units financial

"vesting and settlement of restricted stock units"

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.

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.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Emergent BioSolutions (EBS) report for Paul Anthony Williams?

Emergent BioSolutions reported that SVP Paul Anthony Williams had 694 common shares withheld at $8.00 per share to cover taxes on vested restricted stock units. This was recorded as a tax-withholding disposition, not an open-market purchase or sale.

How many Emergent BioSolutions (EBS) shares were involved in the tax withholding?

The filing shows 694 shares of Emergent BioSolutions common stock were withheld. These shares were used to satisfy tax obligations arising from the vesting and settlement of restricted stock units awarded to SVP Paul Anthony Williams.

What price per share was used for the Emergent BioSolutions (EBS) tax-withheld shares?

The shares withheld for taxes were valued at $8.00 per share. This per-share value is applied to the 694 common shares withheld to determine the tax payment amount related to the restricted stock unit vesting.

How many Emergent BioSolutions (EBS) shares does Paul Anthony Williams hold after this transaction?

After the tax-withholding disposition, Paul Anthony Williams directly holds 162,098 shares of Emergent BioSolutions common stock. This figure reflects his position following the withholding of 694 shares tied to restricted stock unit vesting and tax settlement.

Was the Emergent BioSolutions (EBS) insider transaction an open-market sale?

No, the transaction was not an open-market sale. The 694 shares were withheld by the company to pay taxes associated with the vesting and settlement of restricted stock units, a common administrative mechanism for equity compensation.

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

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Accepted by SEC EDGAR 06/10/2026 - 03:09 PM EDT Learn about SEC filing dates

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^*

Williams Paul Anthony

(Last) (First) (Middle)

300 PROFESSIONAL DRIVE

(Street)

GAITHERSBURG MARYLAND 20879

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Emergent BioSolutions Inc. [ EBS ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Products Business

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026

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	06/08/2026		F		694(1)	D	$8	162,098	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. Represents shares of common stock withheld to pay taxes associated with vesting and settlement of restricted stock units.

Remarks:

	/s/ Richard S. Lindahl, Attorney-in-fact	06/10/2026
	** 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)