David Mandelbaum

CIK 1246483 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 21, 2022 · Latest: Jan. 21, 2022

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 59 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

59 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Nov. 13, 2008 ALX S 1,406 $311.16 $437,491 8,594 Direct -14.06% Disposed -13.1% (price as of 2026-08-19)
Nov. 13, 2008 ALX S 100 $312.39 $31,239 8,494 Direct -1.16% Disposed -13.4% (price as of 2026-08-19)
Nov. 13, 2008 ALX S 500 $312.87 $156,435 7,994 Direct -5.89% Disposed -13.6% (price as of 2026-08-19)
Nov. 13, 2008 ALX S 100 $313.19 $31,319 7,894 Direct -1.25% Disposed -13.7% (price as of 2026-08-19)
Nov. 13, 2008 ALX S 100 $315.31 $31,531 7,794 Direct -1.27% Disposed -14.2% (price as of 2026-08-19)
Nov. 13, 2008 ALX S 57 $316.59 $18,046 7,737 Direct -0.73% Disposed -14.6% (price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
May 21, 2026 ALX Deferred Stock Units [F1] Common Stock (505) — — 505 Acquired
May 21, 2026 VNO Restricted Units [F1] Common Shares (7,168) — — 7,168 Acquired
May 20, 2021 ALX Deferred Stock Units [F1] Common Stock (284) — — 284 Acquired
May 20, 2021 VNO Restricted Units [F1] Common Shares (3,859) — — 3,859 Acquired
May 14, 2020 VNO Restricted Units [F1] Common Shares (5,310) — — 5,310 Acquired
May 14, 2020 ALX Deferred Stock Units [F1] Common Stock (329) — — 329 Acquired
May 16, 2019 VNO Restricted Units [F1] Common Shares (2,611) — — 2,611 Acquired
May 16, 2019 ALX Deferred Stock Units [F1] Common Stock (193) — — 193 Acquired
May 17, 2018 VNO Restricted Units [F1] Common Shares (2,628) — — 2,628 Acquired
May 17, 2018 ALX Deferred Stock Units [F1] Common Stock (195) — — 195 Acquired
May 18, 2017 VNO Restricted Units [F1] Common Shares (1,345) — — 1,345 Acquired
May 18, 2017 ALX Deferred Stock Units [F1] Common Stock (183) — — 183 Acquired
May 19, 2016 ALX Deferred Stock Units [F1] Common Stock (203) — — 203 Acquired
May 19, 2016 VNO Restricted Units [F1] Common Shares (1,363) — — 1,363 Acquired
May 21, 2015 ALX Deferred Stock Units [F1] Common Stock (176) — — 176 Acquired
May 21, 2015 VNO Restricted Units [F1] Common Shares (1,220) — — 1,220 Acquired
May 22, 2014 ALX Deferred Stock Units [F1] Common Stock (212) — — 212 Acquired
May 22, 2014 VNO Restricted Units [F1] Common Shares (1,193) — — 1,193 Acquired
Aug. 7, 2013 VNO Restricted Units [F1] Common Shares (417) — — 417 Acquired
May 23, 2013 ALX Deferred Stock Units [F1] Common Stock (243) — — 243 Acquired
May 23, 2013 VNO Restricted Units [F1] Common Shares (1,068) — — 1,068 Acquired
May 24, 2012 VNO Restricted Units [F1] Common Shares (1,086) — — 1,086 Acquired
May 24, 2012 ALX Deferred Stock Units [F1] Common Stock (129) — — 129 Acquired
May 26, 2011 ALX Deferred Stock Units [F1] Common Stock (131) — — 131 Acquired
May 26, 2011 VNO Restricted Units [F1] Common Shares (941) — — 941 Acquired
May 13, 2010 VNO Restricted Units [F1] Common Shares (608) — — 608 Acquired
Dec. 14, 2009 VNO Class A Units Common Shares (6) — — 6 Acquired
Sept. 14, 2009 VNO Class A Units Common Shares (8) — — 8 Acquired
June 12, 2009 VNO Class A Units Common Shares (6) — — 6 Acquired
May 14, 2009 VNO Restricted Units [F1] Common Shares (1,131) — — 1,131 Acquired
March 12, 2009 VNO Class A Units Common Shares (10) — — 10 Acquired
Nov. 13, 2008 ALX Options (Right to Buy) Common Stock (10,000) $70.38 March 4, 2009 10,000 Disposed
May 17, 2007 VNO Restricted Units [F1] Common Shares (309) — — 309 Acquired
May 17, 2007 VNO Restricted Units [F1] Common Shares (263) — — 263 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).