Karen A. Foster - 24 May 2021 Form 4 Insider Report for BIOLIFE SOLUTIONS INC (BLFS)

Role: Chief Quality Officer
Signature: /s/ Karen A. Foster
Issuer symbol: BLFS
Transactions as of: 24 May 2021
Net transactions value: -$486,694
Form type: 4
Filing time: 26 May 2021, 20:01:13 UTC
Next filing: 02 Jun 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BLFS	Common Stock	Options Exercise	$26,784	+16,332	+22%	$1.64^*	89,980	24 May 2021	Direct
transaction	BLFS	Common Stock	Sale	$513,478	-16,332	-18%	$31.44	73,648	24 May 2021	Direct	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	BLFS	Stock Option (Right to Buy)	Options Exercise	$0	-16,332	-14%	$0.000000	97,993	24 May 2021	Common Stock	16,332	$1.64	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 12, 2020.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.06 to $32.26 per share, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.
F3	On December 20, 2016, the reporting person was granted an option to purchase 163,323 shares of common stock which vested in two equal installments on March 8, 2018 and March 8, 2019.