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
$5.92M
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 | $40.93 | $5.92M | -$5.36M | 46 | 2021-01-26 |
Recent Filings · Page 4 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 |
|---|---|---|---|---|---|
| 2018-02-02 | DCOM | Exer (M) | +2,927 | $49.0K | EDGAR |
| 2017-05-30 | DCOM | Other (J) | +7,904 | $156.0K | EDGAR |
| 2017-05-03 | DCOM | Other (J) | — | $0 | EDGAR |
| 2017-05-02 | DCOM | Mixed | +5,852 | $114.7K | EDGAR |
| 2017-04-04 | DCOM | Grant (A) | +25,587 | $514.3K | EDGAR |
| 2016-05-03 | DCOM | Mixed | +9,111 | $165.0K | EDGAR |
| 2016-04-04 | DCOM | Grant (A) | +2,647 | $46.3K | EDGAR |
| 2015-05-29 | DCOM | Mixed | — | -$66.9K | EDGAR |
| 2015-05-08 | DCOM | Mixed | +7,852 | $125.0K | EDGAR |
| 2015-03-31 | DCOM | Grant (A) | +2,345 | $38.2K | 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.