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Bio-Rad Laboratories, Inc. (BIOBIO.B)
United States · Delayed Price · Currency is USD
Laboratory Analytical Instruments
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Insider Score
––Not scored
BIOBIO.B Insider Score
Insiders here have filed 29 Form 4s in the last 90 days, but all of them are share awards, grants or other non-market transactions. Those are compensation, not a decision to buy, so they are not scored.
BIOBIO.B Stock Insider Trading Activity
BIOBIO.B stock’s insider trading shows no open-market insider trades by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| EVRAN SEDAT Other | Option exercise | 1,044 | — | — | 29.0% | 4,647 | Oct 20, 2026 | — | Form 4 |
| EVRAN SEDAT Other | Tax withheld | 487 | $354.50 | $172.64K | 10.5% | 4,160 | Oct 20, 2026 | — | Form 4 |
| ENLOE COURTNEY C Other | Option exercise | 768 | — | — | 64.6% | 1,957 | Sep 6, 2026 | — | Form 4 |
| ENLOE COURTNEY C Other | Tax withheld | 305 | $386.11 | $117.76K | 15.6% | 1,652 | Sep 6, 2026 | — | Form 4 |
| Lakkaraju Roop Kalyan CFO | Option exercise | 1,536 | — | — | 45.2% | 4,933 | Sep 6, 2026 | — | Form 4 |
| EVRAN SEDAT Other | Option exercise | 864 | — | — | 28.6% | 3,880 | Sep 6, 2026 | — | Form 4 |
| EVRAN SEDAT Other | Tax withheld | 277 | $386.11 | $106.95K | 7.1% | 3,603 | Sep 6, 2026 | — | Form 4 |
| ENGELHARDT EVA ANETTE Other | Option exercise | 1,152 | — | — | 99.2% | 2,313 | Sep 6, 2026 | — | Form 4 |
| ENGELHARDT EVA ANETTE Other | Tax withheld | 485 | $386.11 | $187.26K | 21.0% | 1,828 | Sep 6, 2026 | — | Form 4 |
| Allison Schwartz Director | Option exercise | 92 | — | — | 5.5% | 1,768 | Sep 6, 2026 | — | Form 4 |
| Allison Schwartz Director | Tax withheld | 34 | $386.11 | $13.13K | 1.9% | 1,734 | Sep 6, 2026 | — | Form 4 |
| SCHWARTZ NORMAN D CEO | Tax withheld | 1,854 | $386.11 | $715.85K | 0.4% | 449,019 | Sep 6, 2026 | — | Form 4 |
| BARRY JAMES Other | Option exercise | 1,056 | — | — | 73.4% | 2,495 | Sep 6, 2026 | — | Form 4 |
| SCHWARTZ NORMAN D CEO | Option exercise | 3,455 | — | — | 0.8% | 450,873 | Sep 6, 2026 | — | Form 4 |
| BARRY JAMES Other | Tax withheld | 470 | $386.11 | $181.47K | 18.8% | 2,025 | Sep 6, 2026 | — | Form 4 |
| Lakkaraju Roop Kalyan CFO | Tax withheld | 782 | $386.11 | $301.94K | 15.9% | 4,151 | Sep 6, 2026 | — | Form 4 |
| Lakkaraju Roop Kalyan CFO | Option exercise | 1,370 | — | — | 53.0% | 3,956 | Sep 5, 2026 | — | Form 4 |
| Lakkaraju Roop Kalyan CFO | Tax withheld | 559 | $386.11 | $215.84K | 14.1% | 3,397 | Sep 5, 2026 | — | Form 4 |
| BARRY JAMES Other | Option exercise | 1,027 | — | — | 132% | 1,808 | Sep 5, 2026 | — | Form 4 |
| Mehta Rajat Other | Option exercise | 456 | — | — | 319% | 599 | Sep 5, 2026 | — | Form 4 |
| Mehta Rajat Other | Tax withheld | 233 | $386.11 | $89.96K | 38.9% | 366 | Sep 5, 2026 | — | Form 4 |
| Mehta Rajat Other | Option exercise | 1,370 | — | — | 374% | 1,736 | Sep 5, 2026 | — | Form 4 |
| Mehta Rajat Other | Tax withheld | 504 | $386.11 | $194.60K | 29.0% | 1,232 | Sep 5, 2026 | — | Form 4 |
| ENGELHARDT EVA ANETTE Other | Option exercise | 1,027 | — | — | 204% | 1,530 | Sep 5, 2026 | — | Form 4 |
| ENGELHARDT EVA ANETTE Other | Tax withheld | 369 | $386.11 | $142.47K | 24.1% | 1,161 | Sep 5, 2026 | — | Form 4 |
| BARRY JAMES Other | Tax withheld | 369 | $386.11 | $142.47K | 20.4% | 1,439 | Sep 5, 2026 | — | Form 4 |
| ENLOE COURTNEY C Other | Option exercise | 685 | — | — | 91.4% | 1,435 | Sep 5, 2026 | — | Form 4 |
| ENLOE COURTNEY C Other | Tax withheld | 246 | $386.11 | $94.98K | 17.1% | 1,189 | Sep 5, 2026 | — | Form 4 |
| EVRAN SEDAT Other | Option exercise | 1,027 | — | — | 44.3% | 3,345 | Sep 5, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Option exercise (M) — Exercise or conversion of an exempt derivative
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.