The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query BIO-RAD LABORATORIES, INC. owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/BIOBIO.B"
Use Arkolith to show who owns BIO-RAD LABORATORIES, INC., which funds added or reduced it, and which SEC filings prove each claim.
Not held in any tracked 13F filing yet.
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 11, 2026 | ENGELHARDT EVA ANETTE | EVP, President, CDG | Sell (S) | 550 | $136K |
| Apr 24, 2026 | Lakkaraju Roop Kalyan | EVP, Chief Financial Officer | Option exercise (M) | 1K | $0 |
| Apr 24, 2026 | Lakkaraju Roop Kalyan | EVP, Chief Financial Officer | Tax withholding (F) | 420 | $121K |
| Apr 24, 2026 | Lakkaraju Roop Kalyan | EVP, Chief Financial Officer | Option exercise (M) | 1K | $0 |
| Apr 24, 2026 | ENLOE COURTNEY C | EVP, General Counsel & Sec | Option exercise (M) | 186 | $0 |
| Apr 24, 2026 | ENLOE COURTNEY C | EVP, General Counsel & Sec | Tax withholding (F) | 77 | $22K |
| Apr 24, 2026 | ENLOE COURTNEY C | EVP, General Counsel & Sec | Option exercise (M) | 186 | $0 |
| Apr 21, 2026 | EDWARDS JEFFREY L | Director | Option exercise (M) | 407 | $0 |
| Apr 21, 2026 | EDWARDS JEFFREY L | Director | Grant (A) | 369 | $0 |
| Apr 21, 2026 | EDWARDS JEFFREY L | Director | Option exercise (M) | 407 | $0 |
| Apr 21, 2026 | Hinckley Greg K | Director | Option exercise (M) | 407 | $0 |
| Apr 21, 2026 | Hinckley Greg K | Director | Grant (A) | 369 | $0 |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for BIOBIO.B. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.