Alvin Murstein
CIK 1000210 · See Remarks · last filed 2026-03-11
Alvin Murstein is a corporate insider who has filed 40 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for MFIN, was dated Mar 11, 2026. Across all open-market trades the lifetime net is +$657.6M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $31.3M across reported positions. 76 SEC filings were submitted jointly with MEDALLION FINANCIAL CORP.
"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.
MFINL 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
437 MADISON AVENUE, 38TH FLOOR
NEW YORK, NY 10022
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MFIN | See Remarks | 1,688,561 | $11.25 | $19.00M | $83.6K | 14 | 2026-03-11 |
| MEDALLION FINANCIAL CORP (MFINL) Delisted | See Remarks | 281,117 | $24.99 | $7.03M | $657.99M | 8 | 2021-03-08 |
| MEDALLION FINANCIAL CORP (MFIN.L) Delisted | See Remarks | 249,192 | — | — | $26.0K | 1 | 2016-08-22 |
| TAXI | See Remarks | 244,192 | $50.57 | $12.35M | -$523.1K | 17 | 2016-03-16 |
Recent Filings
40 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-11 | MFIN | Mixed | +35,294 | -$353.0K | EDGAR |
| 2026-03-02 | MFIN | Tax (F) | −11,973 | -$120.8K | EDGAR |
| 2026-02-12 | MFIN | Grant (A) | +39,597 | $0 | EDGAR |
| 2025-03-05 | MFIN | Tax (F) | −2,072 | -$16.9K | EDGAR |
| 2025-03-03 | MFIN | Tax (F) | −15,302 | -$127.6K | EDGAR |
| 2025-02-18 | MFIN | Grant (A) | +23,514 | $0 | EDGAR |
| 2024-03-05 | MFIN | Tax (F) | −13,597 | -$108.9K | EDGAR |
| 2024-02-21 | MFIN | Mixed | +19,863 | $178.2K | EDGAR |
| 2023-03-07 | MFIN | Tax (F) | −2,072 | -$17.5K | EDGAR |
| 2023-03-03 | MFIN | Tax (F) | −7,330 | -$62.2K | 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.