PETER R KELLOGG
CIK 897485 · last filed 2026-07-08
"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
$1.19M
Companies
5
Total Filings
173
Lifetime Open-Market Net
-$12.31M
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 |
|---|---|---|---|---|---|---|---|
| MERC | 10%+ Owner | 2,370,231 | $0.50 | $1.19M | $362.7K | 2 | 2026-07-08 |
| MERCS | 10%+ Owner | 1,190,929 | — | — | $68.77M | 68 | 2026-05-20 |
| PRESSTEK INC /DE/ (PRST) Delisted | 10%+ Owner | 9,457,217 | $0.02 | $188.2K | $12.54M | 16 | 2010-04-15 |
| THORATEC CORP (THOR) Delisted | 4,339,099 | — | — | -$14.50M | 4 | 2008-11-17 | |
| CHATTEM INC (CHTT) Delisted | 10%+ Owner | 1,800,000 | — | — | -$79.48M | 4 | 2008-07-29 |
Recent Filings · Page 14 of 18
173 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2008-11-05 | MERCS | Buy (P) | +100,000 | $231.9K | EDGAR |
| 2008-10-17 | THORATEC CORP (THOR) Delisted | Mixed | +100,000 | $2.54M | EDGAR |
| 2008-09-29 | — | Buy (P) | +150,000 | $600.0K | |
| 2008-09-25 | THORATEC CORP (THOR) Delisted | Mixed | −48,600 | -$1.34M | EDGAR |
| 2008-09-22 | THORATEC CORP (THOR) Delisted | Mixed | −151,400 | -$4.27M | EDGAR |
| 2008-08-15 | — | Buy (P) | +200,000 | $1.30M | |
| 2008-08-15 | — | Buy (P) | +2,800 | $19.4K | |
| 2008-08-13 | — | Buy (P) | +100,000 | $646.0K | |
| 2008-08-13 | — | Buy (P) | +4,149 | $28.0K | |
| 2008-08-11 | — | Buy (P) | +200,000 | $1.25M |
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.