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Who

David Mandelbaum

Director

Company insider

Files Form 4 as: Director and 10% owner, Alexander's; Director, Vornado Realty Trust.

Every Form 4 they filed

In numbers

Trades disclosed
69
Buys
0
Sells
1
Bought
$0
Sold
$706K
Companies
2
Companies where not an officer
2
First trade
17 Mar 2006
Last trade
21 May 2026
Last filed
22 May 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
ALX Alexander'sDirector, 10% owner · REITs · last 21 May 20260 buys · 1 sell
VNO Vornado Realty TrustDirector · REITs · last 21 May 20260 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
21 May 2026filed 22 May 2026ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—505filing
21 May 2026filed 22 May 2026ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—505filing
21 May 2026filed 22 May 2026VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—7,168filing
21 May 2026filed 22 May 2026VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—7,168filing
22 May 2025filed 23 May 2025ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—346filing
22 May 2025filed 23 May 2025VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—6,062filing
23 May 2024filed 24 May 2024ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—357filing
23 May 2024filed 24 May 2024VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—7,400filing
18 May 2023filed 19 May 2023VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—13,436filing
18 May 2023filed 19 May 2023ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—449filing
19 May 2022filed 20 May 2022VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—5,167filing
19 May 2022filed 20 May 2022ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—326filing
29 Nov 2021filed 21 Jan 2022VNO Vornado Realty TrustREITsSEC FORM 4 Code G—140,000 at $0.00filing
20 May 2021filed 24 May 2021ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—284filing
20 May 2021filed 24 May 2021VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—3,859filing
14 May 2020filed 18 May 2020ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—329filing
14 May 2020filed 18 May 2020VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—5,310filing
16 May 2019filed 20 May 2019ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—193filing
16 May 2019filed 20 May 2019VNO Vornado Realty Trustoption or derivative · REITsSEC FORM 4 Code A—2,611filing
17 May 2018filed 21 May 2018ALX Alexander'soption or derivative · REITsSEC FORM 4 Code A—195filing

Sectors

Real Estate1

Buys in green, sells in red, by the company’s sector.

Related people

Glen J. WeissEVP- Off. Leasing Co Head R.E. · EVP- Off. Leasing Co Head R.E. at Vornado Realty Trust, filing Form 4 there in the last year
Haim CheraEVP - Head of Retail · EVP - Head of Retail at Vornado Realty Trust, filing Form 4 there in the last year
Michael D. FascitelliDirector · Director at Vornado Realty Trust, filing Form 4 there in the last year
Russell B. Wight Jr.Director and 10% owner · Director and 10% owner at Alexanders, filing Form 4 there in the last year
William W. HelmanDirector · Director at Vornado Realty Trust, filing Form 4 there in the last year