Roderick De Greef
CIK 1241181 · President and CEO · last filed 2026-09-22
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$27.40M
Companies
4
Total Filings
120
Lifetime Open-Market Net
-$24.25M
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BLFS | President and CEO | 728,196 | $37.63 | $27.40M | -$21.97M | 83 | 2026-09-22 |
| PARETEUM Corp (TEUM) Delisted | Director | 18,078 | — | — | $30.4K | 2 | 2017-02-24 |
| PARETEUM Corp (ETAK) Delisted | Director | 176,038 | — | — | $0 | 2 | 2016-04-29 |
| ENDOLOGIX INC /DE/ (ELGX) Delisted | Director | 860 | — | — | -$2.31M | 12 | 2013-03-08 |
Recent Filings · Page 6 of 12
120 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-03-25 | BLFS | Mixed | — | -$1.14M | EDGAR |
| 2021-02-19 | BLFS | Mixed | +22,839 | -$551.4K | EDGAR |
| 2020-11-16 | BLFS | Mixed | — | -$900.2K | EDGAR |
| 2020-11-16 | BLFS | Grant (A) | +100,000 | $0 | EDGAR |
| 2020-10-01 | BLFS | Sell (S) | −1,781 | -$51.0K | EDGAR |
| 2020-07-24 | BLFS | Grant (A) | — | $0 | EDGAR |
| 2020-03-27 | BLFS | Grant (A) | +32,215 | $0 | EDGAR |
| 2020-03-06 | BLFS | Mixed | — | -$360.1K | EDGAR |
| 2020-02-07 | BLFS | Mixed | — | -$363.8K | EDGAR |
| 2020-02-07 | BLFS | Exer (M) | +10,000 | $18.1K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.