Frederick Stewart
CIK 1588156 · View on SEC EDGAR ↗
Insider
First SEC filing: Oct. 2, 2013 · Latest: Oct. 2, 2013
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 3 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
3 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 10, 2013 | BLFS | P | 125,000 | — | — | 125,000 Direct | — | Acquired | (price as of 2026-08-21) |
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 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 |
| Sept. 10, 2013 | BLFS | Stock Option (Right to Buy) | Common Stock (125,000) | $0.75 | Sept. 10, 2023 | 125,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 2, 2013 | BLFS | See Footnote [F1] | — | Direct |