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 8 of 9
86 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2017-02-16 | IDXX | Mixed | +1,438 | -$101.8K | EDGAR |
| 2016-12-07 | IDXX | Mixed | +651 | -$35.5K | EDGAR |
| 2016-11-21 | IDXX | Exer (M) | +2,204 | $104.8K | EDGAR |
| 2016-09-02 | IDXX | Mixed | +1,601 | -$86.6K | EDGAR |
| 2016-02-17 | IDXX | Mixed | +912 | -$34.5K | EDGAR |
| 2015-12-08 | IDXX | Mixed | +651 | -$21.9K | EDGAR |
| 2015-09-03 | IDXX | Mixed | +1,601 | -$54.0K | EDGAR |
| 2015-02-18 | IDXX | Mixed | +299 | -$28.0K | EDGAR |
| 2014-12-29 | IDXX | Exer (M) | +1,000 | $95.1K | EDGAR |
| 2014-12-09 | IDXX | Mixed | +326 | -$23.0K | 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.