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

$1.21M

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 $0.51 $1.21M $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 5 of 18

173 filings
Insider 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
2017-05-22 MERCS Buy (P) +52,283 $581.5K EDGAR
2017-05-17 MERCS Buy (P) +29,214 $330.0K EDGAR
2017-05-15 MERCS Buy (P) +290 $3.2K EDGAR
2017-05-11 MERCS Buy (P) +8,017 $94.8K EDGAR
2017-05-11 Buy (P) +34,000 $41.7K
2017-05-04 MERCS Buy (P) +9,817 $116.0K EDGAR
2017-04-19 MERCS Buy (P) +2,400 $28.2K EDGAR
2017-04-17 MERCS Buy (P) +15,000 $172.4K EDGAR
2017-03-10 Buy (P) +26,579 $36.7K
2017-03-08 Buy (P) +27,000 $35.4K
Showing 4150 of 173
Page 5 of 18
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.