MARTIN MACKAY
CIK 1414815 · Executive Chairman · last filed 2026-05-11
"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.
Loading insider history…
Disclosed Exposure
$24.53M
Companies
6
Total Filings
89
Lifetime Open-Market Net
$103.5K
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.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CRL | Director | 15,730 | $187.51 | $2.95M | $0 | 13 | 2026-05-11 |
| KLRA | Director | — | — | — | $0 | 1 | 2026-04-20 |
| RLYB | Executive Chairman | 714,630 | $15.92 | $11.38M | $103.5K | 7 | 2026-02-20 |
| SpringWorks Therapeutics, Inc. (SWTX) Delisted | Director | 0 | $46.99 | $0 | $0 | 3 | 2025-07-02 |
| 5:01 Acquisition Corp. (FVAM) Delisted | Director | — | $10.00 | — | $0 | 1 | 2020-10-20 |
| PFE | Senior Vice President | 389,172 | $26.21 | $10.20M | $0 | 50 | 2010-05-18 |
Recent Filings · Page 2 of 9
89 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-02-16 | RLYB | Grant (A) | — | $0 | EDGAR |
| 2023-07-05 | CRL | Grant (A) | +95 | $0 | EDGAR |
| 2023-06-02 | CRL | Grant (A) | +338 | $0 | EDGAR |
| 2023-05-17 | CRL | Grant (A) | +664 | $0 | EDGAR |
| 2023-02-06 | RLYB | Grant (A) | — | $0 | EDGAR |
| 2022-05-13 | CRL | Grant (A) | +841 | $0 | EDGAR |
| 2022-02-09 | RLYB | Grant (A) | — | $0 | EDGAR |
| 2022-01-12 | RLYB | Mixed | +719,126 | $103.5K | EDGAR |
| 2022-01-04 | CRL | Grant (A) | +63 | $0 | EDGAR |
| 2021-05-10 | CRL | Grant (A) | +574 | $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.