KENNETH J MAHON
CIK 1237108 · CHIEF EXECUTIVE OFFICER · last filed 2026-01-05
"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
$5.97M
Companies
2
Total Filings
64
Lifetime Open-Market Net
-$9.45M
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 |
|---|---|---|---|---|---|---|---|
| Dime Community Bancshares, Inc. /NY/ (DCOMP) Delisted | Director | 234,365 | $18.51 | $4.34M | -$4.09M | 16 | 2026-01-05 |
| DCOM | CHIEF EXECUTIVE OFFICER | 144,756 | $41.25 | $5.97M | -$5.36M | 46 | 2021-01-26 |
Recent Filings · Page 3 of 7
64 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 |
|---|---|---|---|---|---|
| 2020-05-04 | DCOM | Mixed | +14,692 | $0 | EDGAR |
| 2020-04-29 | DCOM | Exer (M) | +3,044 | $38.8K | EDGAR |
| 2020-02-06 | DCOM | Buy (P) | +10,000 | $250.0K | EDGAR |
| 2019-05-02 | DCOM | Mixed | +6,380 | $198.0K | EDGAR |
| 2019-03-26 | DCOM | Mixed | +812 | $0 | EDGAR |
| 2018-12-03 | DCOM | Buy (P) | +750 | $13.2K | EDGAR |
| 2018-11-21 | DCOM | Buy (P) | +300 | $5.1K | EDGAR |
| 2018-11-19 | DCOM | Buy (P) | +300 | $5.0K | EDGAR |
| 2018-05-03 | DCOM | Sell (S) | −9,475 | -$182.6K | EDGAR |
| 2018-05-02 | DCOM | Mixed | +10,025 | $193.0K | EDGAR |
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.