Comparable stake leader
VANGUARD GROUP INC
SEC ownership of ALEXANDERS INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000003499.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- ALX on NYSE
- Parsed ownership sources
- 13D/G and 13F
- Largest SEC-reported holder
- VANGUARD GROUP INC
- Latest 13D/G holder
- VANGUARD GROUP INC
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0000003499
- Issuer location
- Paramus, NJ
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ALEXANDERS INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD GROUP INC
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
13F
Lead comparable stake: 3.9%
13D/G row: VANGUARD GROUP INC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD GROUP INC leads the comparable SEC ownership view at 3.9%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD GROUP INC's linked filing trail.
Comparable ownership
Top 5
VANGUARD GROUP INC
3.9%
GOLDMAN SACHS GROUP INC
2.9%
BlackRock, Inc.
4.3%
VANGUARD PORTFOLIO MANAGEMENT LLC
3.8%
MORGAN STANLEY
3.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
3.9%
|
$43,509,480
199,629 shares
|
$0 | 31 Dec 2025 |
| GOLDMAN SACHS GROUP INC |
13F
13D/G
Company · THE GOLDMAN SACHS GROUP, INC.
|
2.9%
from 13D/G
|
$32,830,912
138,996 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
Company
|
4.3%
|
$51,642,339
218,638 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
3.8%
|
$44,870,914
189,970 shares
|
— | 31 Mar 2026 |
| MORGAN STANLEY |
13F
Company
|
3.3%
|
$38,774,362
164,158 shares
|
— | 31 Mar 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
Company
|
3%
|
$36,058,528
152,661 shares
|
— | 31 Mar 2026 |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ |
13F
Company
|
2%
|
$23,386,870
99,013 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
1.8%
|
$21,832,438
92,432 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 06 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-10 of 10 reporting-owner rows connected to ALEXANDERS INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
10
Largest Forms 3/4/5 holder
Properties Interstate
Net 12M change
$0
Latest report
21 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Properties Interstate | 10%+ Owner | $153,177,507 | Mixed | 23 Aug 2023 | ||
| David Mandelbaum | Director, 10%+ Owner | $108,707 | Mixed | 21 May 2026 | ||
| Russell B. Wight Jr. | Director, 10%+ Owner | $108,707 | Mixed | 21 May 2026 | ||
| Arthur Sonnenblick | Director | $108,707 | Mixed | 21 May 2026 | ||
| Mandakini Puri | Director | $108,707 | Mixed | 21 May 2026 | ||
| Richard R. West | Director | $108,707 | Mixed | 23 May 2024 | ||
| Thomas R. Dibenedetto | Director | $108,707 | Mixed | 21 May 2026 | ||
| Steven Roth | CHAIRMAN AND CEO, Director, 10%+ Owner | $108,707 | Mixed | 21 May 2026 | ||
| Wendy Silverstein | Director | $108,707 | Mixed | 21 May 2026 | ||
| Gary W. Hansen | Chief Financial Officer | Mixed | 02 Nov 2021 |
Recent insider transactions for ALEXANDERS INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Wendy Silverstein | ALX | Deferred Stock Units | Award | 505 | 505 | 21 May 2026 | Direct | |||
| Arthur Sonnenblick | ALX | Deferred Stock Units | Award | 505 | 505 | 21 May 2026 | Direct | |||
| Mandakini Puri | ALX | Deferred Stock Units | Award | 505 | 505 | 21 May 2026 | Direct | |||
| Thomas R. Dibenedetto | ALX | Deferred Stock Units | Award | 505 | 505 | 21 May 2026 | Direct | |||
| Russell B. Wight Jr. | ALX | Deferred Stock Units | Award | 505 | 505 | 21 May 2026 | Direct | |||
| David Mandelbaum | ALX | Deferred Stock Units | Award | 505 | 505 | 21 May 2026 | Direct | |||
| Steven Roth | ALX | Deferred Stock Units | Award | 505 | 505 | 21 May 2026 | Direct |
* marks a reported price that did not pass the local price check.