Updated Jul 16, 2026 · Last SEC filing 2026-06-02
IDEXX LABORATORIES INC /DE (IDXX) has filed 17 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-02. 2 Form 8-K material event filings were reported by IDXX in the last 90 days. 1 Form 144 notices of proposed sale were filed for IDXX stock. InsiderAlpha tracks every IDXX SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000874716 |
|---|
| Form 4 filings (90d) | 17 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-06-02 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| FENNELL GEORGE | Executive Vice President | M — Option exercise | 639 | $0.00 | — | SEC | |
| FENNELL GEORGE | Executive Vice President | F — Tax withholding / forfeiture | 284 | $566.79 | $161K | SEC | |
| JUNIUS DANIEL M | Director | M — Option exercise | 257 | $0.00 | — | SEC | |
| SZOSTAK M ANNE | Director | M — Option exercise | 257 | $0.00 | — | SEC | |
| Kingsley Lawrence D | Director | M — Option exercise | 257 | $0.00 | — | SEC | |
| HOOLEY JOSEPH L | Director | M — Option exercise | 158 | $0.00 | — | SEC | |
| Peacock Karen | Director | M — Option exercise | 101 | $0.00 | — | SEC | |
| Kingsley Lawrence D | Director | M — Option exercise | 82 | $0.00 | — | SEC | |
| Vandebroek Sophie V. | Director | M — Option exercise | 257 | $0.00 | — | SEC | |
| HOOLEY JOSEPH L | Director | A — Grant or award | 43 | $560.80 | $24K | SEC | |
| Underberg Sharon E. | EVP, GC & Corporate Secretary | M — Option exercise | 197 | $505.53 | $100K | SEC | |
| Hunt Nimrata | Executive Vice President | S — Open-market sale | 1.8K | $634.57 | $1.12M | SEC | |
| MAZELSKY JONATHAN JAY | President and CEO | M — Option exercise | 197 | $505.53 | $100K | SEC | |
| MAZELSKY JONATHAN JAY | President and CEO | S — Open-market sale | 1.1K | $654.63 | $727K | SEC | |
| MAZELSKY JONATHAN JAY | President and CEO | S — Open-market sale | 1.5K | $655.85 | $976K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for IDEXX LABORATORIES INC /DE (IDXX). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Kingsley Lawrence D | 8 | — |
| HOOLEY JOSEPH L | 5 | $24K |
| JUNIUS DANIEL M | 4 | — |
| Peacock Karen | 4 | — |
| Vandebroek Sophie V. | 4 | — |
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 IDXX 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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