BIOLIFE SOLUTIONS (BLFS) EVP reports 564 shares withheld for taxes on RSU release

Rhea-AI Filing Summary

BIOLIFE SOLUTIONS INC executive Mathew Aby J., EVP & Chief Scientific Officer, reported a small share disposition tied to taxes rather than a market trade. On the release of restricted stock units, 564 shares of common stock were withheld by the company at $26.04 per share to satisfy his tax obligations. After this automatic tax-withholding event, he directly holds 388,976 shares of BIOLIFE SOLUTIONS INC common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Mathew Aby J.

Role EVP & Chief Scientific Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	564	$26.04	$15K

Holdings After Transaction: Common Stock — 388,976 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares withheld for taxes: 564 shares Withholding price per share: $26.04 per share Shares held after transaction: 388,976 shares

3 metrics

Shares withheld for taxes 564 shares Withheld to satisfy tax obligations on RSU release

Withholding price per share $26.04 per share Value used for tax-withholding disposition

Shares held after transaction 388,976 shares Direct ownership after tax-withholding event

Key Terms

restricted stock units, tax withholding obligations, Form 4

3 terms

restricted stock units financial

"arose upon the release 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 obligations financial

"withheld by the Issuer to satisfy tax withholding obligations"

Form 4 regulatory

"What did BIOLIFE SOLUTIONS (BLFS) EVP Mathew Aby J. report on this 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.

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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^*

Mathew Aby J.

(Last) (First) (Middle)

3303 MONTE VILLA PARKWAY

SUITE 310

(Street)

BOTHELL WASHINGTON 98021

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BIOLIFE SOLUTIONS INC [ BLFS ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & Chief Scientific Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/18/2026

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	06/18/2026		F		564(1)	D	$26.04	388,976	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 the number of shares withheld by the Issuer to satisfy tax withholding obligations of the reporting person that arose upon the release of restricted stock units.

Remarks:

	/s/ Aby J. Mathew	06/22/2026
	** 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 did BIOLIFE SOLUTIONS (BLFS) EVP Mathew Aby J. report on this Form 4?

He reported a small, automatic share disposition for taxes. Specifically, 564 BIOLIFE SOLUTIONS common shares were withheld by the company to cover tax obligations that arose when his restricted stock units were released.

Was the BIOLIFE SOLUTIONS (BLFS) Form 4 transaction an open-market sale?

No, the transaction reflects tax withholding, not an open-market sale. Shares were delivered back to the issuer to satisfy tax liabilities triggered by the vesting of restricted stock units, a routine compensation-related event for executives.

How many BIOLIFE SOLUTIONS (BLFS) shares were withheld for taxes in this filing?

The filing shows 564 common shares were withheld for taxes at $26.04 per share. This occurred when restricted stock units released, and the issuer took shares instead of cash to satisfy the reporting person’s tax obligations.

How many BIOLIFE SOLUTIONS (BLFS) shares does Mathew Aby J. hold after this Form 4 event?

Following the tax-withholding transaction, he directly holds 388,976 BIOLIFE SOLUTIONS common shares. This figure reflects his position after 564 shares were withheld by the issuer upon the release of restricted stock units for tax purposes.

What does transaction code “F” mean in the BIOLIFE SOLUTIONS (BLFS) Form 4?

Code “F” indicates shares were used to pay a tax liability or exercise price. In this case, it means BIOLIFE SOLUTIONS withheld 564 shares from Mathew Aby J. to satisfy taxes arising from the release of restricted stock units.