Matthew A Lindenbaum
CIK 927943 · last filed 2026-09-03
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
DCOMP price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
10TH FLOOR
NEW YORK, NY 10022
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RM | Director | 23,118 | $34.37 | $794.6K | $5.73M | 4 | 2026-09-03 |
| DCOM | Director | 1,084,289 | $38.83 | $42.10M | -$24.20M | 1 | 2026-08-03 |
| 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
22 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-02-08 | Dime Community Bancshares, Inc. /NY/ (DCOMP) Delisted | Sell (S) | −490,000 | -$15.34M | EDGAR |
| 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 |
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.