CENTRAL SECURITIES CORP

CET SEC CIK 0000018748 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$1.65B
Covers every share class this company has on file.
Insiders on file
8
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$146.04M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
8.83%
insider-held value divided by market capitalisation

Insiders at CENTRAL SECURITIES CORP

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against CENTRAL SECURITIES CORP.
Insider Reported role Shares Value Last action
Officers 2
Andrew J O'Neill VP 89,690 $4.91M P Open-market purchase Jan 6, 2025 position reported
Marlene A. Krumholz VP 20,371 $1.12M L Small acquisition Jun 27, 2025 position reported
Officers who also sit on the board 1
John C Hill CEO 78,274 $4.29M P Open-market purchase Jun 26, 2026 position reported
Directors 5
Wilmot H. Kidd Board Member 1,981,255 $108.53M J Other acquisition or disposition Nov 14, 2024 position reported
Wilmot H Kidd IV Board Member 311,968 $17.09M position reported
Donald G. Calder Board Member 113,246 $6.20M position reported
Leo Price Blackford Board Member 47,847 $2.62M P Open-market purchase Jun 26, 2026 position reported
Simms C Browning Board Member 23,226 $1.27M W Acquired by will or inheritance Mar 11, 2025 position reported

Recent insider transactions

Of the 30 rows we hold, 16 are open-market purchases (P) and 0 open-market sales — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for CENTRAL SECURITIES CORP, newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Jun 26, 2026 John C Hill P Open-market purchase 5 $51.87 $259 SEC filing ↗
Jun 26, 2026 John C Hill P Open-market purchase 228 $51.87 $11.8K SEC filing ↗
Jun 26, 2026 Leo Price Blackford P Open-market purchase 204 $52.38 $10.7K SEC filing ↗
Dec 29, 2025 John C Hill P Open-market purchase 500 $50.91 $25.5K SEC filing ↗
Nov 7, 2025 John C Hill P Open-market purchase 100 $50.70 $5.1K SEC filing ↗
Jun 27, 2025 Leo Price Blackford L Small acquisition 171 $47.60 $8.1K SEC filing ↗
Jun 27, 2025 Marlene A. Krumholz L Small acquisition 100 $47.60 $4.8K SEC filing ↗
Jun 27, 2025 Marlene A. Krumholz L Small acquisition 2 $47.60 $95 SEC filing ↗
Jun 27, 2025 John C Hill L Small acquisition 185 $47.94 $8.9K SEC filing ↗
Jun 27, 2025 John C Hill L Small acquisition 4 $47.94 $192 SEC filing ↗
Mar 11, 2025 Simms C Browning W Acquired by will or inheritance 3,500 $0.00 $0 SEC filing ↗
Jan 6, 2025 John C Hill P Open-market purchase 700 $45.87 $32.1K SEC filing ↗
Jan 6, 2025 Andrew J O'Neill P Open-market purchase 1,309 $45.65 $59.8K SEC filing ↗
Nov 14, 2024 Wilmot H. Kidd J Other acquisition or disposition 175,129 $0.00 $0 SEC filing ↗
Oct 30, 2024 John C Hill P Open-market purchase 200 $47.13 $9.4K SEC filing ↗
Oct 30, 2024 John C Hill P Open-market purchase 600 $46.71 $28.0K SEC filing ↗
Oct 24, 2024 Andrew J O'Neill P Open-market purchase 274 $46.09 $12.6K SEC filing ↗
Oct 24, 2024 Andrew J O'Neill P Open-market purchase 1,080 $46.09 $49.8K SEC filing ↗
Jun 26, 2024 Leo Price Blackford L Small acquisition 142 $43.88 $6.2K SEC filing ↗
Jun 26, 2024 Marlene A. Krumholz L Small acquisition 25 $43.89 $1.1K SEC filing ↗
Jun 26, 2024 Marlene A. Krumholz L Small acquisition 2 $43.89 $88 SEC filing ↗
Jun 26, 2024 John C Hill L Small acquisition 3 $43.87 $132 SEC filing ↗
Jun 26, 2024 John C Hill L Small acquisition 149 $43.87 $6.5K SEC filing ↗
Jun 26, 2024 Andrew J O'Neill L Small acquisition 6 $43.87 $263 SEC filing ↗
Jun 26, 2024 Andrew J O'Neill L Small acquisition 197 $43.87 $8.6K SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Corporate ownership links — 1 filer holds a position

Who owns CENTRAL SECURITIES CORP

Each row is one filer naming this company.

Funds, trusts and other companies file the same ownership forms that executives do. Everything below is taken from those filings, with the position exactly as the filing states it.

Filers holding a position in CENTRAL SECURITIES CORP

Funds, trusts and companies that disclose an ownership position in CENTRAL SECURITIES CORP.
Owner Reported role Shares Filed
ENDEAVOR FOUNDATION, INC. TenPercentOwner 9,557,585

See the full ownership map — every entity that files as an owner of a US public company.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.