Comparable stake leader
ENDEAVOR FOUNDATION, INC.
SEC ownership of CENTRAL SECURITIES CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000018748.
Disclosed value leader
ENDEAVOR FOUNDATION, INC.
Comparable rows
50/50
Latest evidence
21 Jul 2026
- Public ticker
- CET on NYSE
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
ENDEAVOR FOUNDATION, INC.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
ENDEAVOR FOUNDATION, INC.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
21 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000018748
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of CENTRAL SECURITIES CORP (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
ENDEAVOR FOUNDATION, INC.
Disclosed value leader
ENDEAVOR FOUNDATION, INC.
Comparable rows
50/50
Latest evidence
21 Jul 2026
3/4/5
13D/G
13F
Lead comparable stake: 32%
13D/G row: ENDEAVOR FOUNDATION, INC.
Showing 1-8 of 50 holder rows.
Quick read
ENDEAVOR FOUNDATION, INC. leads the comparable SEC ownership view at 32%.
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 ENDEAVOR FOUNDATION, INC.'s linked filing trail.
Comparable ownership
Top 5
ENDEAVOR FOUNDATION, INC.
32%
Wilmot H. Kidd
6.7%
Wilmot H. Kidd IV
1.1%
Donald G. Calder
0.38%
John C. Hill
0.27%
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 |
|---|---|---|---|---|---|
| ENDEAVOR FOUNDATION, INC. |
3/4/5
13D/G
10%+ Owner
|
32%
from 13D/G
|
$495,693,673
9,450,785 shares
|
— | 21 Jul 2026 |
| Wilmot H. Kidd |
3/4/5
Director
|
6.7%
|
$100,469,437
1,981,255 shares
|
— | 31 Dec 2025 |
| Wilmot H. Kidd IV |
3/4/5
Director
|
1.1%
|
$15,819,897
311,968 shares
|
— | 31 Dec 2025 |
| Donald G. Calder |
3/4/5
Director
|
0.38%
|
$5,742,704
113,246 shares
|
— | 31 Dec 2025 |
| John C. Hill |
3/4/5
CEO & President, Director
|
0.27%
|
$4,072,157
78,507 shares
|
+$68,066 | 26 Jun 2026 |
| L. Price Blackford |
3/4/5
Director
|
0.16%
|
$2,516,859
48,050 shares
|
+$10,686 | 26 Jun 2026 |
| Simms C. Browning |
3/4/5
Director
|
0.08%
|
$1,177,790
23,226 shares
|
— | 31 Dec 2025 |
| Marlene A. Krumholz |
3/4/5
Vice President & Secretary
|
0.07%
|
$969,659
20,371 shares
|
— | 31 Dec 2025 |
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
Net insider flow leans to buying over the last 12 months. Net value: +$78,751.
Buys
$78,751
Insiders: 2
Sells
$0
Insiders: 0
Net
+$78,751
Shares: +1,537
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 1,537
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 437 | 0 | $22,771 | $0 | +$22,771 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 1,100 | 0 | $55,980 | $0 | +$55,980 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-15 of 15 reporting-owner rows connected to CENTRAL SECURITIES CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
ENDEAVOR FOUNDATION, INC.
Net 12M change
+$78,752
Latest report
21 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| ENDEAVOR FOUNDATION, INC. | 10%+ Owner | $495,693,673 | Median | 21 Jul 2026 | ||
| Wilmot H. Kidd | Director | $100,469,437 | Mixed | 31 Dec 2025 | ||
| Wilmot H. Kidd IV | Director | $15,819,897 | Mixed | 31 Dec 2025 | ||
| Donald G. Calder | Director | $5,742,704 | Mixed | 31 Dec 2025 | ||
| Andrew J. O'Neill | Vice President | $4,094,349 | Mixed | 06 Jan 2025 | ||
| John C. Hill | CEO & President, Director | $4,072,157 | +$68,066 | +1.7% | Filing P/S | 26 Jun 2026 |
| L. Price Blackford | Director | $2,516,859 | +$10,686 | +0.43% | Filing P/S | 26 Jun 2026 |
| Simms C. Browning | Director | $1,177,790 | Mixed | 31 Dec 2025 | ||
| David Charles Colander | Director | $1,110,002 | Mixed | 27 Jun 2022 | ||
| Marlene A. Krumholz | Vice President & Secretary | $969,659 | Mixed | 31 Dec 2025 | ||
| Jay R. Inglis | Director | $532,733 | Mixed | 16 Mar 2022 | ||
| Lawrence P. Vogel | Vice President & Treasurer | $495,933 | Mixed | 31 Dec 2023 | ||
| Joseph T. Malone | Vice President & Treasurer | $0 | Mixed | 01 Jun 2024 | ||
| Jacob C. Wheelock | Vice President | $0 | Mixed | 10 Dec 2025 | ||
| David M. Poppe | Director | Mixed | 31 Dec 2025 |
Recent insider transactions for CENTRAL SECURITIES CORP
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Endeavor Foundation, Inc. | CET | Common Stock | Gift | -0.33% | -30,820 | 9,450,785 | 21 Jul 2026 | Direct | ||
| John C. Hill | CET | Common Stock | Purchase | 0.55% | $259 | $51.87 | 5 | 906 | 26 Jun 2026 | By children |
| John C. Hill | CET | Common Stock | Purchase | 0.29% | $11,826 | $51.87 | 228 | 77,601 | 26 Jun 2026 | Direct |
| L. Price Blackford | CET | Common Stock | Purchase | 0.43% | $10,686 | $52.38 | 204 | 48,050 | 26 Jun 2026 | Direct |
| Endeavor Foundation, Inc. | CET | Common Stock | Gift | -0.4% | -38,200 | 9,481,635 | 18 Jun 2026 | Direct | ||
| Endeavor Foundation, Inc. | CET | Common Stock | Gift | -0.2% | -19,000 | 9,519,835 | 19 May 2026 | Direct | ||
| Endeavor Foundation, Inc. | CET | Common Stock | Gift | -0.2% | -18,750 | 9,538,835 | 22 Apr 2026 | Direct | ||
| Endeavor Foundation, Inc. | CET | Common Stock | Gift | -0.21% | -20,160 | 9,557,585 | 26 Mar 2026 | Direct | ||
| Endeavor Foundation, Inc. | CET | Common Stock | Gift | -0.2% | -19,200 | 9,577,745 | 26 Feb 2026 | Direct | ||
| John C. Hill | CET | Common Stock | Purchase | 0.65% | $25,455 | $50.91 | 500 | 77,373 | 29 Dec 2025 | Direct |
| John C. Hill | CET | Common Stock | Purchase | 0.65% | $25,455 | $50.91 | 500 | 77,373 | 29 Dec 2025 | Direct |
| John C. Hill | CET | Common Stock | Purchase | 0.14% | $5,070 | $50.70 | 100 | 73,277 | 07 Nov 2025 | Direct |
* marks a reported price that did not pass the local price check.