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Jon Kevin Griffin

CIK 1525628 · last filed 2026-08-14

Jon Kevin Griffin is a corporate insider who has filed 187 SEC Form 4 insider transactions across 1 company since 2011. The most recent filing, for MAIN, was dated Aug 14, 2026. Across all open-market trades the lifetime net is +$134.7K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $4.3M across reported positions.

"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

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
2026-08-14 MAIN Other (J) +875 $45.6K EDGAR
2026-05-28 MAIN Other (J) +281 $14.2K EDGAR
2026-05-06 MAIN Mixed +2,122 $88.8K EDGAR
2026-04-03 MAIN Other (J) +555 $29.5K EDGAR
2026-03-11 MAIN Other (J) +228 $13.6K EDGAR
2026-02-13 MAIN Other (J) +211 $13.5K EDGAR
2026-01-13 MAIN Other (J) +475 $28.7K EDGAR
2025-12-05 MAIN Other (J) +224 $13.1K EDGAR
2025-11-14 MAIN Other (J) +224 $13.0K EDGAR
2025-10-14 MAIN Other (J) +437 $28.2K EDGAR
Showing 1–10 of 187
Page 1 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.