MATTHEW A LINDENBAUM
CIK 927943 · last filed 2026-08-03
"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
$42.93M
Companies
5
Total Filings
21
Lifetime Open-Market Net
-$62.76M
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 |
|---|---|---|---|---|---|---|---|
| DCOM | Director | 1,084,289 | $39.45 | $42.78M | -$24.20M | 1 | 2026-08-03 |
| RM | Director | 4,908 | $31.83 | $156.2K | $5.88M | 3 | 2026-02-24 |
| Dime Community Bancshares, Inc. /NY/ (DCOMP) Delisted | Director | 186,769 | $18.51 | $3.46M | -$47.46M | 10 | 2026-02-03 |
| Dime Community Bancshares, Inc. /NY/ (BDGE) Delisted | Director | 711,870 | — | — | $4.17M | 5 | 2018-10-09 |
| HUDSON VALLEY HOLDING CORP (HVB) Delisted | Director | 0 | — | — | -$1.14M | 2 | 2015-07-02 |
Recent Filings · Page 2 of 3
21 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 |
|---|---|---|---|---|---|
| 2022-12-08 | Dime Community Bancshares, Inc. /NY/ (DCOMP) Delisted | Sell (S) | −93,396 | -$3.09M | EDGAR |
| 2022-11-07 | Dime Community Bancshares, Inc. /NY/ (DCOMP) Delisted | Sell (S) | −560,000 | -$18.40M | EDGAR |
| 2022-06-07 | Dime Community Bancshares, Inc. /NY/ (DCOMP) Delisted | Sell (S) | −255,282 | -$7.99M | EDGAR |
| 2021-02-09 | Dime Community Bancshares, Inc. /NY/ (DCOMP) Delisted | Buy (P) | +2,991 | $77.9K | EDGAR |
| 2018-10-09 | Dime Community Bancshares, Inc. /NY/ (BDGE) Delisted | Buy (P) | +13,371 | $431.7K | EDGAR |
| 2018-10-04 | Dime Community Bancshares, Inc. /NY/ (BDGE) Delisted | Buy (P) | +72,921 | $2.37M | EDGAR |
| 2018-09-12 | Dime Community Bancshares, Inc. /NY/ (BDGE) Delisted | Buy (P) | +199,564 | $7.13M | EDGAR |
| 2016-09-21 | Dime Community Bancshares, Inc. /NY/ (BDGE) Delisted | Mixed | −198,045 | -$5.76M | EDGAR |
| 2015-11-24 | Dime Community Bancshares, Inc. /NY/ (BDGE) Delisted | Mixed | −56 | -$613 | EDGAR |
| 2015-07-02 | HUDSON VALLEY HOLDING CORP (HVB) Delisted | Mixed | −1,971,074 | -$1.14M | 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.