John C Shoemaker
CIK 1299645 · last filed 2025-11-13
"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
$29.86M
Companies
3
Total Filings
54
Lifetime Open-Market Net
$695.1K
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 |
|---|---|---|---|---|---|---|---|
| EXTR | Director | 959,711 | $31.11 | $29.86M | $695.1K | 33 | 2025-11-13 |
| ALTERA CORP (ALTR) Delisted | Director | 31,319 | $111.85 | $3.50M | $0 | 15 | 2015-05-14 |
| SONICWALL INC (SNWL) Delisted | Director | 0 | — | — | $0 | 5 | 2010-07-23 |
Recent Filings · Page 4 of 6
54 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2012-05-15 | ALTERA CORP (ALTR) Delisted | Exer (M) | +4,370 | $0 | EDGAR |
| 2012-05-10 | ALTERA CORP (ALTR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2012-04-27 | EXTR | Grant (A) | +5,000 | $0 | EDGAR |
| 2011-09-20 | EXTR | Grant (A) | +20,000 | $0 | EDGAR |
| 2011-08-09 | EXTR | Grant (A) | — | $0 | EDGAR |
| 2011-05-17 | ALTERA CORP (ALTR) Delisted | Exer (M) | +5,000 | $0 | EDGAR |
| 2011-05-12 | ALTERA CORP (ALTR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2010-12-16 | EXTR | Grant (A) | +5,000 | $0 | EDGAR |
| 2010-08-18 | EXTR | Buy (P) | +20,000 | $53.3K | EDGAR |
| 2010-07-23 | SONICWALL INC (SNWL) Delisted | Disp (D) | −57,500 | -$661.2K | 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.