BIO BIO.B
insider transactionsBIO-RAD LABORATORIES, INC. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-550
0 buy · 550 sell
Net value · 365d
-$135.6K
$0 in · $135.6K out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
1
0 buy · 550 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Sell·S
EVP, President, CDG
$135.6K
550 sh · $246.54
Own -61%
-
Exercise·M
EVP, General Counsel & Sec
$0
186 sh
Own +100%
-
Other·F
EVP, General Counsel & Sec
$22.2K
77 sh · $287.84
Own -9%
-
Exercise·M
EVP, General Counsel & Sec
$0
186 sh
Own +29%
-
Exercise·M
EVP, Chief Financial Officer
$0
1.1K sh
Own +100%
-
Other·F
EVP, Chief Financial Officer
$120.9K
420 sh · $287.84
Own -14%
-
Exercise·M
EVP, Chief Financial Officer
$0
1.1K sh
Own +57%
-
Exercise·M
Director
$0
407 sh
Own New
-
Grant·A
Director
$0
369 sh
Own New
-
Exercise·M
Director
$0
407 sh
Own +132%
-
Exercise·M
Director
$0
407 sh
Own New
-
Grant·A
Director
$0
369 sh
Own New
-
Exercise·M
Director
$0
407 sh
Own +132%
-
Exercise·M
Director
$0
407 sh
Own New
-
Grant·A
Director
$0
369 sh
Own New
-
Exercise·M
Director
$0
407 sh
Own +50%
-
Exercise·M
Director
$0
407 sh
Own New
-
Grant·A
Director
$0
369 sh
Own New
-
Exercise·M
Director
$0
407 sh
Own +132%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 11, 2026 | Eva Anette Engelhardt KEY | Sell S | 550 | $135.6K |
| Apr 24, 2026 | Courtney C Enloe | Exercise M | 186 | $0 |
| Apr 24, 2026 | Courtney C Enloe | Other F | 77 | $22.2K |
| Apr 24, 2026 | Courtney C Enloe | Exercise M | 186 | $0 |
| Apr 24, 2026 | Roop Kalyan Lakkaraju KEY | Exercise M | 1.1K | $0 |
| Apr 24, 2026 | Roop Kalyan Lakkaraju KEY | Other F | 420 | $120.9K |
| Apr 24, 2026 | Roop Kalyan Lakkaraju KEY | Exercise M | 1.1K | $0 |
| Apr 21, 2026 | Melinda Litherland Pei | Exercise M | 407 | $0 |
| Apr 21, 2026 | Melinda Litherland Pei | Grant A | 369 | $0 |
| Apr 21, 2026 | Melinda Litherland Pei | Exercise M | 407 | $0 |
| Apr 21, 2026 | Arnold A Pinkston | Exercise M | 407 | $0 |
| Apr 21, 2026 | Arnold A Pinkston | Grant A | 369 | $0 |
| Apr 21, 2026 | Arnold A Pinkston | Exercise M | 407 | $0 |
| Apr 21, 2026 | Greg K Hinckley | Exercise M | 407 | $0 |
| Apr 21, 2026 | Greg K Hinckley | Grant A | 369 | $0 |
| Apr 21, 2026 | Greg K Hinckley | Exercise M | 407 | $0 |
| Apr 21, 2026 | Jeffrey L Edwards | Exercise M | 407 | $0 |
| Apr 21, 2026 | Jeffrey L Edwards | Grant A | 369 | $0 |
| Apr 21, 2026 | Jeffrey L Edwards | Exercise M | 407 | $0 |
About BIO BIO.B insider trading
This page tracks insider transactions for BIO-RAD LABORATORIES, INC. (BIO BIO.B) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.