Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 34 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

34 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 16, 2022 BLFS S 3,000 $23.85 $71,550 21,449 Direct -12.27% Disposed 57.2% (price as of 2026-10-05)
Oct. 7, 2021 BLFS S 10b5-1 625 $40.28 $25,175 11,250 Direct -5.26% Disposed -6.9% (price as of 2026-10-05)
Oct. 7, 2021 BLFS S 10b5-1 625 $40.08 $25,050 10,625 Direct -5.56% Disposed -6.5% (price as of 2026-10-05)
Oct. 7, 2021 BLFS S 10b5-1 2,000 $39.96 $79,920 8,625 Direct -18.82% Disposed -6.2% (price as of 2026-10-05)
Aug. 25, 2021 BLFS S 1,875 $52.54 $98,512 11,875 Direct -13.64% Disposed -28.6% (price as of 2026-10-05)
Aug. 18, 2021 BLFS S 625 $44.11 $27,569 13,750 Direct -4.35% Disposed -15.0% (price as of 2026-10-05)
May 24, 2021 BLFS S 1,250 $31.61 $39,512 9,375 Direct -11.76% Disposed 18.6% (price as of 2026-10-05)
Nov. 12, 2020 BLFS S 6,250 $33.12 $207,000 10,625 Direct -37.04% Disposed 13.2% (price as of 2026-10-05)
Sept. 18, 2019 BLFS S 10b5-1 3,287 $21.00 $69,027 6,875 Direct -32.35% Disposed 78.5% (price as of 2026-10-05)
Sept. 17, 2019 BLFS S 10b5-1 1,713 $21.00 $35,973 6,875 Direct -19.95% Disposed 78.5% (price as of 2026-10-05)
May 16, 2019 BLFS S 10b5-1 2,900 $18.01 $52,229 6,875 Direct -29.67% Disposed 108.2% (price as of 2026-10-05)
May 15, 2019 BLFS S 10b5-1 1,900 $18.00 $34,200 6,875 Direct -21.65% Disposed 108.3% (price as of 2026-10-05)
May 7, 2019 BLFS S 10b5-1 200 $18.00 $3,600 6,875 Direct -2.83% Disposed 108.3% (price as of 2026-10-05)
April 16, 2019 BLFS S 10b5-1 3,125 $17.47 $54,594 6,875 Direct -31.25% Disposed 114.6% (price as of 2026-10-05)
April 15, 2019 BLFS S 10b5-1 18,928 $17.05 $322,722 10,000 Direct -65.43% Disposed 119.9% (price as of 2026-10-05)
Aug. 24, 2018 BLFS S 4,765 $25.96 $123,699 10,000 Direct -32.27% Disposed 44.4% (price as of 2026-10-05)
June 1, 2018 BLFS S 6,858 $10.07 $69,060 14,765 Direct -31.72% Disposed 272.3% (price as of 2026-10-05)

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
Nov. 12, 2020 BLFS Stock Option (Right to Buy) Common Stock (5,000) $1.90 March 15, 2026 5,000 Disposed
Sept. 18, 2019 BLFS Employee Stock Option Common Stock (3,287) $1.90 March 15, 2025 3,287 Disposed
Sept. 17, 2019 BLFS Employee Stock Option Common Stock (1,713) $1.90 March 15, 2025 1,713 Disposed
May 16, 2019 BLFS Employee Stock Option Common Stock (2,900) $2.06 May 4, 2025 2,900 Disposed
May 15, 2019 BLFS Employee Stock Option Common Stock (1,900) $2.06 May 4, 2025 1,900 Disposed
May 7, 2019 BLFS Employee Stock Option Common Stock (200) $2.06 May 4, 2025 200 Disposed
April 15, 2019 BLFS Employee Stock Option Common Stock (8,928) $8.51 Dec. 17, 2023 8,928 Disposed
April 15, 2019 BLFS Employee Stock Option Common Stock (10,000) $2.06 May 4, 2025 10,000 Disposed
March 15, 2016 BLFS Stock Option (Right to Buy) Common Stock (10,000) $1.90 March 15, 2026 10,000 Acquired
May 4, 2015 BLFS Stock Option (Right to Buy) Common Stock (15,000) $2.06 May 4, 2025 15,000 Acquired

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

Initial ownership (Form 3) 1 holding

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

DateTickerSecuritySharesOwnership
Nov. 19, 2013 BLFS See Footnote [F1] 0 Direct