BIO-RAD LABORATORIES (BIO) stock: insider trades, news & valuation
Net sellingShare price and insider trades
BIO-RAD LABORATORIES insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 2 sold $350K of BIO stock on the open market.
Get emailed when insiders cluster-buy stocks like BIO
Free alerts the day a new cluster buy is filed, plus the Monday report of the week's biggest insider trades.
Free · unsubscribe anytime · not investment advice · see a sample issue
BIO insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | — | 0 | $136K | 1 |
| Q1 2026 | — | 0 | — | 0 |
| Q4 2025 | — | 0 | $214K | 1 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 BIO-RAD LABORATORIES, INC. insiders reported open-market purchases totaling $0, while 2 insiders reported sales totaling $350K. 0 of 2 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| May 13SEC | Eva Anette EngelhardtPresident | Sell | 550346 held (−61%) | $246.54 | $136K | +48.5% | — |
| Nov 10SEC | James BarryPresident | Sell | 700510 held (−58%) | $306.18 | $214K | +19.6% | — |
Insiders at BIO-RAD LABORATORIES, INC.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| James BarryPresident | — | $214K | Nov 10, 2025 | — |
| Eva Anette EngelhardtPresident | — | $136K | May 13, 2026 | — |
BIO stock: common questions
Are BIO-RAD LABORATORIES, INC. insiders buying BIO stock?
In the past 12 months, 0 insiders reported open-market purchases of BIO worth $0.
Are BIO-RAD LABORATORIES, INC. insiders selling BIO stock?
2 insiders reported sales worth $350K over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is BIO's 52-week range?
Over the past year BIO has traded between $241.71 and $390.34. It last closed at $366.16 on Oct 9, 2026.