Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 4 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

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
March 15, 2016 BLFS A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-02)
May 4, 2015 BLFS A 100,000 · · 100,000 Direct · Acquired (price as of 2026-10-02)
Aug. 7, 2007 BLFS A 500,000 · · 850,000 Direct +142.86% Acquired (price as of 2026-10-02)
Feb. 7, 2007 BLFS A 250,000 · · 250,000 Direct · Acquired (price as of 2026-10-02)

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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
May 4, 2015 BLFS Stock Option (Right to Buy) Common Stock (100,000) $2.06 May 4, 2025 100,000 Acquired
Aug. 7, 2007 BLFS Option (right to buy) Common Stock (250,000) $0.10 Aug. 6, 2017 500,000 Acquired
Feb. 7, 2007 BLFS Option (right to buy) Common Stock (250,000) $0.08 Feb. 6, 2017 250,000 Acquired

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

Initial ownership (Form 3) 2 holdings

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Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Feb. 24, 2015 BLFS Common Stock 2,381 Direct
Feb. 24, 2015 BLFS Stock Option (right to buy)→ Common Stock (10,000) 10,000 Direct