Updated Jul 16, 2026 · Last SEC filing 2026-05-13
BIO-RAD LABORATORIES, INC. (BIO) has filed 7 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-13. 2 Form 8-K material event filings were reported by BIO in the last 90 days. 2 Form 144 notices of proposed sale were filed for BIO stock. InsiderAlpha tracks every BIO SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000012208 |
|---|
| Form 4 filings (90d) | 7 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-05-13 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| ENGELHARDT EVA ANETTE | EVP, President, CDG | S — Open-market sale | 550 | $246.54 | $136K | SEC | |
| ENLOE COURTNEY C | EVP, General Counsel & Sec | M — Option exercise | 186 | $0.00 | — | SEC | |
| ENLOE COURTNEY C | EVP, General Counsel & Sec | F — Tax withholding / forfeiture | 77 | $287.84 | $22K | SEC | |
| Lakkaraju Roop Kalyan | EVP, Chief Financial Officer | M — Option exercise | 1.1K | $0.00 | — | SEC | |
| Lakkaraju Roop Kalyan | EVP, Chief Financial Officer | F — Tax withholding / forfeiture | 420 | $287.84 | $121K | SEC | |
| PINKSTON ARNOLD A | Director | M — Option exercise | 407 | $0.00 | — | SEC | |
| PEI MELINDA LITHERLAND | Director | M — Option exercise | 407 | $0.00 | — | SEC | |
| HINCKLEY GREGORY K | Director | M — Option exercise | 407 | $0.00 | — | SEC | |
| EDWARDS JEFFREY L | Director | M — Option exercise | 407 | $0.00 | — | SEC | |
| Allison Schwartz | Director | M — Option exercise | 92 | $0.00 | — | SEC | |
| ENGELHARDT EVA ANETTE | EVP, President, CDG | M — Option exercise | 1.2K | $0.00 | — | SEC | |
| ENLOE COURTNEY C | EVP, General Counsel Sec | F — Tax withholding / forfeiture | 275 | $295.43 | $81K | SEC | |
| ENGELHARDT EVA ANETTE | EVP, President, CDG | F — Tax withholding / forfeiture | 413 | $295.43 | $122K | SEC | |
| BARRY JAMES | EVP, President, LSG | M — Option exercise | 1.1K | $0.00 | — | SEC | |
| SCHWARTZ NORMAN D | Chairman CEO | M — Option exercise | 3.5K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for BIO-RAD LABORATORIES, INC. (BIO). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| EDWARDS JEFFREY L | 3 | — |
| Lakkaraju Roop Kalyan | 3 | $121K |
| ENLOE COURTNEY C | 3 | $22K |
| PINKSTON ARNOLD A | 3 | — |
| HINCKLEY GREGORY K | 3 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in BIO insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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