Jon Kevin Griffin

CIK 1525628 · last filed 2026-08-14

"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

$4.30M

Companies

1

Total Filings

187

Lifetime Open-Market Net

$134.7K

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
MAIN Director 74,091 $57.97 $4.30M $134.7K 187 2026-08-14

Recent Filings · Page 6 of 19

187 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
2022-05-13 MAIN Grant (A) +2,678 $75.0K EDGAR
2022-04-29 MAIN Other (J) +339 $14.2K EDGAR
2022-03-24 MAIN Other (J) +258 $10.5K EDGAR
2022-03-02 MAIN Other (J) +143 $6.1K EDGAR
2022-01-26 MAIN Other (J) +221 $9.8K EDGAR
2022-01-18 MAIN Other (J) +254 $11.1K EDGAR
2021-11-23 MAIN Other (J) +207 $9.5K EDGAR
2021-11-01 MAIN Other (J) +221 $9.4K EDGAR
2021-09-28 MAIN Other (J) +220 $9.2K EDGAR
2021-08-25 MAIN Other (J) +212 $9.1K EDGAR
Showing 5160 of 187
Page 6 of 19
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.