BIO
Bio-Rad Laboratories Inc
NYSE: BIO · HEALTHCARE · MEDICAL DEVICES
$385.12
+1.08% today
Updated 2026-10-28
Market cap
$9.46B
P/E ratio
44.83
P/S ratio
3.65x
EPS (TTM)
$7.89
Dividend yield
—
52W range
$237 – $396
Volume
0.3M
Bio-Rad Laboratories Inc (BIO) Insider transactions
Net insider activity
Net buying (36,466 shares)
Buy transactions
42
Sell transactions
58
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-09-06 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Sale | 3,455 | — | — |
| 2026-09-06 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Buy | 3,455 | — | — |
| 2026-09-06 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Sale | 1,854 | $386.11 | $715847.94 |
| 2026-09-06 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Sale | 1,536 | — | — |
| 2026-09-06 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Buy | 1,536 | — | — |
| 2026-09-06 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Sale | 782 | $386.11 | $301938.02 |
| 2026-09-06 | EVRAN, SEDAT | EVP, Global Supply Chain | Sale | 864 | — | — |
| 2026-09-06 | EVRAN, SEDAT | EVP, Global Supply Chain | Buy | 864 | — | — |
| 2026-09-06 | EVRAN, SEDAT | EVP, Global Supply Chain | Sale | 277 | $386.11 | $106952.47 |
| 2026-09-06 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Sale | 768 | — | — |
| 2026-09-06 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Buy | 768 | — | — |
| 2026-09-06 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Sale | 305 | $386.11 | $117763.55 |
| 2026-09-06 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Sale | 1,152 | — | — |
| 2026-09-06 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Buy | 1,152 | — | — |
| 2026-09-06 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Sale | 485 | $386.11 | $187263.35 |
| 2026-09-06 | BARRY, JAMES | EVP, President, LSG | Sale | 1,056 | — | — |
| 2026-09-06 | BARRY, JAMES | EVP, President, LSG | Buy | 1,056 | — | — |
| 2026-09-06 | BARRY, JAMES | EVP, President, LSG | Sale | 470 | $386.11 | $181471.70 |
| 2026-09-06 | ALLISON, SCHWARTZ | Director | Sale | 92 | — | — |
| 2026-09-06 | ALLISON, SCHWARTZ | Director | Buy | 92 | — | — |
| 2026-09-06 | ALLISON, SCHWARTZ | Director | Sale | 34 | $386.11 | $13127.74 |
| 2026-09-05 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Sale | 4,109 | — | — |
| 2026-09-05 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Buy | 4,109 | — | — |
| 2026-09-05 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Sale | 2,876 | $386.11 | $1.11M |
| 2026-09-05 | MEHTA, RAJAT | EVP, GBL Commercial Operations | Sale | 1,370 | — | — |
| 2026-09-05 | MEHTA, RAJAT | EVP, GBL Commercial Operations | Sale | 456 | — | — |
| 2026-09-05 | MEHTA, RAJAT | EVP, GBL Commercial Operations | Buy | 1,370 | — | — |
| 2026-09-05 | MEHTA, RAJAT | EVP, GBL Commercial Operations | Sale | 504 | $386.11 | $194599.44 |
| 2026-09-05 | MEHTA, RAJAT | EVP, GBL Commercial Operations | Buy | 456 | — | — |
| 2026-09-05 | MEHTA, RAJAT | EVP, GBL Commercial Operations | Sale | 233 | $386.11 | $89963.63 |
| 2026-09-05 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Sale | 1,370 | — | — |
| 2026-09-05 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Buy | 1,370 | — | — |
| 2026-09-05 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Sale | 559 | $386.11 | $215835.49 |
| 2026-09-05 | EVRAN, SEDAT | EVP, Global Supply Chain | Sale | 1,027 | — | — |
| 2026-09-05 | EVRAN, SEDAT | EVP, Global Supply Chain | Buy | 1,027 | — | — |
| 2026-09-05 | EVRAN, SEDAT | EVP, Global Supply Chain | Sale | 329 | $386.11 | $127030.19 |
| 2026-09-05 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Sale | 685 | — | — |
| 2026-09-05 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Buy | 685 | — | — |
| 2026-09-05 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Sale | 246 | $386.11 | $94983.06 |
| 2026-09-05 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Sale | 1,027 | — | — |
| 2026-09-05 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Buy | 1,027 | — | — |
| 2026-09-05 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Sale | 369 | $386.11 | $142474.59 |
| 2026-09-05 | DIVINCENZO, JONATHAN P. | President & COO | Sale | 1,712 | — | — |
| 2026-09-05 | DIVINCENZO, JONATHAN P. | President & COO | Buy | 1,712 | — | — |
| 2026-09-05 | DIVINCENZO, JONATHAN P. | President & COO | Sale | 668 | $386.11 | $257921.48 |
| 2026-09-05 | BARRY, JAMES | EVP, President, LSG | Sale | 1,027 | — | — |
| 2026-09-05 | BARRY, JAMES | EVP, President, LSG | Buy | 1,027 | — | — |
| 2026-09-05 | BARRY, JAMES | EVP, President, LSG | Sale | 369 | $386.11 | $142474.59 |
| 2026-09-05 | ALLISON, SCHWARTZ | Director | Sale | 228 | — | — |
| 2026-09-05 | ALLISON, SCHWARTZ | Director | Buy | 228 | — | — |
| 2026-09-05 | ALLISON, SCHWARTZ | Director | Sale | 82 | $386.11 | $31661.02 |
| 2026-09-04 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Buy | 17,251 | — | — |
| 2026-09-04 | MEHTA, RAJAT | EVP, GBL Commercial Operations | Buy | 4,601 | — | — |
| 2026-09-04 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Buy | 6,326 | — | — |
| 2026-09-04 | EVRAN, SEDAT | EVP, Global Supply Chain | Buy | 4,026 | — | — |
| 2026-09-04 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Buy | 2,876 | — | — |
| 2026-09-04 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Buy | 4,313 | — | — |
| 2026-09-04 | DIVINCENZO, JONATHAN P. | President & COO | Buy | 6,326 | — | — |
| 2026-09-04 | BARRY, JAMES | EVP, President, LSG | Buy | 4,313 | — | — |
| 2026-09-04 | ALLISON, SCHWARTZ | Director | Buy | 719 | — | — |
| 2026-09-01 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Sale | 3,005 | — | — |
| 2026-09-01 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Sale | 2,082 | — | — |
| 2026-09-01 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Buy | 5,087 | — | — |
| 2026-09-01 | SCHWARTZ, NORMAN D | Director, Chairman & CEO, 10% Owner | Sale | 2,336 | $380.96 | $889922.56 |
| 2026-09-01 | BARRY, JAMES | EVP, President, LSG | Sale | 251 | — | — |
| 2026-09-01 | BARRY, JAMES | EVP, President, LSG | Sale | 174 | — | — |
| 2026-09-01 | BARRY, JAMES | EVP, President, LSG | Buy | 425 | — | — |
| 2026-09-01 | BARRY, JAMES | EVP, President, LSG | Sale | 154 | $380.96 | $58667.84 |
| 2026-09-01 | ALLISON, SCHWARTZ | Director | Sale | 75 | — | — |
| 2026-09-01 | ALLISON, SCHWARTZ | Director | Sale | 42 | — | — |
| 2026-09-01 | ALLISON, SCHWARTZ | Director | Buy | 117 | — | — |
| 2026-09-01 | ALLISON, SCHWARTZ | Director | Sale | 43 | $380.96 | $16381.28 |
| 2026-07-25 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Sale | 246 | — | — |
| 2026-07-25 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Buy | 246 | — | — |
| 2026-07-25 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Sale | 89 | $314.46 | $27986.94 |
| 2026-05-11 | ENGELHARDT, EVA ANETTE | EVP, President, CDG | Sale | 550 | $246.54 | $135597.00 |
| 2026-04-24 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Sale | 1,078 | — | — |
| 2026-04-24 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Buy | 1,078 | — | — |
| 2026-04-24 | LAKKARAJU, ROOP KALYAN | EVP, Chief Financial Officer | Sale | 420 | $287.84 | $120892.80 |
| 2026-04-24 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Sale | 186 | — | — |
| 2026-04-24 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Buy | 186 | — | — |
| 2026-04-24 | ENLOE, COURTNEY C | EVP, General Counsel & Sec | Sale | 77 | $287.84 | $22163.68 |
| 2026-04-21 | PINKSTON, ARNOLD A | Director | Sale | 407 | — | — |
| 2026-04-21 | PINKSTON, ARNOLD A | Director | Buy | 369 | — | — |
| 2026-04-21 | PINKSTON, ARNOLD A | Director | Buy | 407 | — | — |
| 2026-04-21 | PEI, MELINDA LITHERLAND | Director | Sale | 407 | — | — |
| 2026-04-21 | PEI, MELINDA LITHERLAND | Director | Buy | 369 | — | — |
| 2026-04-21 | PEI, MELINDA LITHERLAND | Director | Buy | 407 | — | — |
| 2026-04-21 | HINCKLEY, GREG K | Director | Sale | 407 | — | — |
| 2026-04-21 | HINCKLEY, GREG K | Director | Buy | 369 | — | — |
| 2026-04-21 | HINCKLEY, GREG K | Director | Buy | 407 | — | — |
| 2026-04-21 | EDWARDS, JEFFREY L | Director | Sale | 407 | — | — |
| 2026-04-21 | EDWARDS, JEFFREY L | Director | Buy | 369 | — | — |
| 2026-04-21 | EDWARDS, JEFFREY L | Director | Buy | 407 | — | — |
| 2025-11-06 | BARRY, JAMES | EVP, President, LSG | Sale | 700 | $306.18 | $214327.40 |
| 2025-10-24 | DIVINCENZO, JONATHAN P. | President & COO | Sale | 1,869 | — | — |
| 2025-10-24 | DIVINCENZO, JONATHAN P. | President & COO | Buy | 1,869 | — | — |
| 2025-10-24 | DIVINCENZO, JONATHAN P. | President & COO | Sale | 950 | $339.75 | $322762.50 |
| 2025-10-20 | EVRAN, SEDAT | EVP, Global Supply Chain | Sale | 1,044 | — | — |
| 2025-10-20 | EVRAN, SEDAT | EVP, Global Supply Chain | Buy | 1,044 | — | — |
Frequently asked questions
Are BIO insiders buying or selling?
Over the transactions on record, BIO insiders have been net sellers, with about $5.84M in stock sold across 58 sales. The entries tagged as buys are stock grants and option exercises recorded at $0, not open-market purchases.
Does insider selling at BIO mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which BIO insiders are selling the most?
Recent selling is concentrated in a few names. SCHWARTZ, NORMAN D accounts for the largest share on record, with about $2.72M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.