Quick Takeaways
- David Mandelbaum has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $108,707.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of David Mandelbaum
- Location
- New York, NY
- Summary
- The estimated net worth of David Mandelbaum is at least $108,707 dollars as of 23 May 2025. David Mandelbaum is the Director, 10%+ Owner of ALEXANDERS INC and owns shares of ALEXANDERS INC (ALX) stock worth about $108.7K.
- Signature
- /s/ Ryan Saum, Attorney-in-Fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow David Mandelbaum and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
What Changed
- Largest disclosed position: ALEXANDERS INC ($108,707).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Official SEC Source
Filed on Form 4
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
See Original FilingOwnership of David Mandelbaum
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| ALX | ALEXANDERS INC | Director, 10%+ Owner | $108,707 | 22 May 2025 | ||
| VNO, VNORP | VORNADO REALTY TRUST | Director | 22 May 2025 |
Insider Transactions Reported by David Mandelbaum:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.