JONATHAN JAY MAZELSKY
CIK 1556270 · President and CEO · last filed 2026-06-05
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$59.16M
Companies
2
Total Filings
86
Lifetime Open-Market Net
-$79.60M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Recent Filings · Page 4 of 9
86 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-02-09 | IDXX | Mixed | — | -$6.06M | EDGAR |
| 2024-01-16 | XRAY | Grant (A) | +21 | $0 | EDGAR |
| 2024-01-02 | XRAY | Grant (A) | — | $0 | EDGAR |
| 2023-12-06 | IDXX | Mixed | +6,296 | -$2.59M | EDGAR |
| 2023-10-16 | XRAY | Grant (A) | +22 | $0 | EDGAR |
| 2023-10-02 | XRAY | Grant (A) | — | $0 | EDGAR |
| 2023-09-05 | IDXX | Mixed | — | -$5.81M | EDGAR |
| 2023-08-08 | IDXX | Mixed | +214 | -$85.7K | EDGAR |
| 2023-07-17 | XRAY | Grant (A) | +18 | $0 | EDGAR |
| 2023-06-29 | XRAY | Grant (A) | — | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.