DAVID MANDELBAUM
CIK 1246483 · last filed 2026-05-22
"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
$357.74M
Companies
8
Total Filings
40
Lifetime Open-Market Net
-$706.1K
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 |
|---|---|---|---|---|---|---|---|
| VNOpO | Director | — | $14.90 | — | $0 | 5 | 2026-05-22 |
| ALX | Director | 1,362,305 | $262.60 | $357.74M | -$706.1K | 16 | 2026-05-22 |
| VNOpN | Director | — | $17.47 | — | $0 | 1 | 2021-05-24 |
| VNOpM | Director | — | $17.67 | — | $0 | 3 | 2020-05-18 |
| VORNADO REALTY TRUST (VNOw) Delisted | Director | — | — | — | $0 | 3 | 2017-05-22 |
| VNOpL | Director | — | $17.85 | — | $0 | 2 | 2013-08-09 |
| VORNADO REALTY TRUST (VNOpJ) Delisted | Director | — | — | — | $0 | 2 | 2012-05-29 |
| VORNADO REALTY TRUST (VNOpI) Delisted | Director | 539,556 | — | — | $0 | 8 | 2010-05-17 |
Recent Filings · Page 3 of 4
40 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2016-05-23 | VORNADO REALTY TRUST (VNOw) Delisted | Grant (A) | — | $0 | EDGAR |
| 2016-05-23 | ALX | Grant (A) | — | $0 | EDGAR |
| 2015-05-26 | VORNADO REALTY TRUST (VNOw) Delisted | Grant (A) | — | $0 | EDGAR |
| 2015-05-26 | ALX | Grant (A) | — | $0 | EDGAR |
| 2013-08-09 | VNOpL | Grant (A) | — | $0 | EDGAR |
| 2013-05-28 | VNOpL | Grant (A) | — | $0 | EDGAR |
| 2013-05-28 | ALX | Grant (A) | — | $0 | EDGAR |
| 2012-05-29 | VORNADO REALTY TRUST (VNOpJ) Delisted | Grant (A) | — | $0 | EDGAR |
| 2012-05-29 | ALX | Grant (A) | — | $0 | EDGAR |
| 2011-05-31 | VORNADO REALTY TRUST (VNOpJ) Delisted | Grant (A) | — | $0 | EDGAR |
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.