Roderick De Greef

Insider

First SEC filing: June 22, 2026 · Latest: June 22, 2026

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Compensation Executive pay disclosed in company proxy statements.

Insider at

BLFS buying Jan. 13, 2004

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 22 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

22 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 18, 2026	BLFS	F	2,775	$26.04	$72,261	730,971 Direct	-0.38%	Disposed	40.9% (price as of 2026-08-20)
March 8, 2018	BLFS	A	171,919	—	—	171,919 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 1, 2018	BLFS	A	14,583	—	—	14,583 Direct	—	Acquired	(price as of 2026-08-20)
May 3, 2016	BLFS	A	234,000	—	—	234,000 Direct	—	Acquired	(price as of 2026-08-20)
March 4, 2016	BLFS	A	100,000	—	—	100,000 Direct	—	Acquired	(price as of 2026-08-20)
May 10, 2012	BLFS	A	150,000	—	—	2,809,459 Direct	+5.64%	Acquired	(price as of 2026-08-20)
Feb. 11, 2011	BLFS	A	150,000	—	—	2,659,459 Direct	+5.98%	Acquired	(price as of 2026-08-20)
Feb. 5, 2010	BLFS	A	150,000	—	—	2,050,000 Direct	+7.89%	Acquired	(price as of 2026-08-20)
Feb. 5, 2010	BLFS	A	459,459	—	—	2,509,459 Direct	+22.41%	Acquired	(price as of 2026-08-20)
Feb. 27, 2009	BLFS	A	150,000	—	—	1,900,000 Direct	+8.57%	Acquired	(price as of 2026-08-20)
Feb. 7, 2007	BLFS	A	250,000	—	—	250,000 Direct	—	Acquired	(price as of 2026-08-20)
April 14, 2006	BLFS	X	200,000	$0.04	$8,000	2,647,300 Direct	+8.17%	Acquired	6450.0% (price as of 2026-08-20)
April 14, 2006	BLFS	X	39,000	$0.04	$1,560	2,647,300 Direct	+1.50%	Acquired	6450.0% (price as of 2026-08-20)
April 14, 2006	BLFS	X	325,000	$0.04	$13,000	2,647,300 Direct	+13.99%	Acquired	6450.0% (price as of 2026-08-20)
April 14, 2006	BLFS	C	400,000	$0.25	$100,000	2,647,300 Direct	+17.80%	Acquired	948.0% (price as of 2026-08-20)
April 14, 2006	BLFS	C	1,250,000	$0.08	$100,000	2,647,300 Direct	+89.46%	Acquired	3175.0% (price as of 2026-08-20)
April 14, 2006	BLFS	X	200,000	—	—	1,500,000 Direct	-11.76%	Disposed	(price as of 2026-08-20)
April 14, 2006	BLFS	X	39,000	—	—	1,500,000 Direct	-2.53%	Disposed	(price as of 2026-08-20)
April 14, 2006	BLFS	X	325,000	—	—	1,500,000 Direct	-17.81%	Disposed	(price as of 2026-08-20)
April 14, 2006	BLFS	C	1,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 14, 2006	BLFS	C	4	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 25, 2005	BLFS	A	250,000	—	—	250,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 13, 2004	BLFS	P	4	—	—	4 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 13, 2004	BLFS	P	4	—	—	4 Direct	—	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
March 8, 2018	BLFS	Employee Stock Option	Common Stock (171,919)	$1.64	Dec. 20, 2021	171,919	Acquired
May 3, 2016	BLFS	Stock Option (Right to Buy)	Common Stock (234,000)	$1.81	May 3, 2026	234,000	Acquired
March 4, 2016	BLFS	Stock Option (Right to Buy)	Common Stock (100,000)	$1.76	March 4, 2026	100,000	Acquired
May 10, 2012	BLFS	Stock Option (right to buy)	Common Stock (150,000)	$0.08	May 9, 2022	150,000	Acquired
Feb. 11, 2011	BLFS	Stock Option (right to buy)	Common Stock (150,000)	$0.08	Feb. 10, 2021	150,000	Acquired
Feb. 5, 2010	BLFS	Stock Option (right to buy)	Common Stock (150,000)	$0.10	Feb. 4, 2020	150,000	Acquired
Feb. 5, 2010	BLFS	Stock Option (right to buy)	Common Stock (459,459)	$0.10	Feb. 4, 2020	459,459	Acquired
Feb. 27, 2009	BLFS	Stock option (right to buy)	Comon Stock (150,000)	$0.09	Feb. 26, 2019	150,000	Acquired
Feb. 7, 2007	BLFS	Stock Option (right to buy)	Common Stock (250,000)	$0.08	Feb. 6, 2017	250,000	Acquired
April 14, 2006	BLFS	Warrant (right to buy)	Common Stock (200,000)	$0.04	Oct. 16, 2006	200,000	Disposed
April 14, 2006	BLFS	Warrant (right to buy)	Common Stock (39,000)	$0.04	May 9, 2007	39,000	Disposed
April 14, 2006	BLFS	Warrant (right to buy)	Common Stock (325,000)	$0.04	June 24, 2012	325,000	Disposed
April 14, 2006	BLFS	Series F Convertible Preferred Stock	Common Stock (400,000)	—	—	1,000	Disposed
April 14, 2006	BLFS	Series G Convertible Preferred Stock	Common Stock (1,250,000)	—	—	4	Disposed
March 25, 2005	BLFS	Stock Option (right to buy)	Common Stock (250,000)	$0.08	May 12, 2015	250,000	Acquired
Jan. 13, 2004	BLFS	Series G Convertible Preferred Stock	Common Stock (1,250,000)	—	—	4	Acquired
Jan. 13, 2004	BLFS	Common Stock Warrants (right to buy)	Common Stock (1,250,000)	$0.08	Oct. 31, 2013	4	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

BLFS

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2024	$744,450	—	—	—	$655,116	—	$74,765	$7,046,205
2023	$198,890	$62,740	—	—	—	—	$466,285	$5,316,798
2022	$450,000	$185,850	—	—	—	—	—	$2,383,673

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.