CEO John Hill adds CET shares in open-market buys (NYSE: CET)

Rhea-AI Filing Summary

Central Securities Corp CEO John C. Hill reported open-market purchases of the company’s common stock. On June 26, 2026, he bought 233 shares at $51.87 per share, split between direct and indirect holdings. Following these transactions, he directly owns 77,601 shares and indirectly holds 906 shares through his children.

Insider Trade Summary

Net Buyer: 233 shares ($12,086)

Net Buy 2 txns

Insider Hill John C

Role CEO & President

Bought 233 shs ($12K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	228	$51.87	$12K
Purchase	Common Stock	5	$51.87	$259.35

Holdings After Transaction: Common Stock — 77,601 shares (Direct, null); Common Stock — 906 shares (Indirect, By children)

Footnotes (1)

Key Figures

Total shares purchased: 233 shares Purchase price: $51.87 per share Direct holdings after: 77,601 shares +3 more

6 metrics

Total shares purchased 233 shares Open-market common stock purchases on June 26, 2026

Purchase price $51.87 per share Price for both reported common stock transactions

Direct holdings after 77,601 shares Common stock directly owned following the transactions

Indirect holdings after 906 shares Common stock held indirectly by children after the transactions

Direct shares bought 228 shares Open-market purchase of common stock, direct ownership

Indirect shares bought 5 shares Open-market purchase of common stock, held by children

Key Terms

open-market purchase, Common Stock, indirect ownership, transaction code P

4 terms

open-market purchase financial

"transaction_action": "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock financial

""security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

indirect ownership financial

""ownership_type": "indirect""

transaction code P financial

""transaction_code": "P""

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/30/2026 - 02:33 PM Accepted by SEC EDGAR 06/30/2026 - 02:32 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hill John C

(Last) (First) (Middle)

C/O CENTRAL SECURITIES CORP

630 FIFTH AVE

(Street)

NEW YORK NEW YORK 10111

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CENTRAL SECURITIES CORP [ CET ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO & President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/26/2026		P		228	A	$51.87	77,601	D
Common Stock	06/26/2026		P		5	A	$51.87	906	I	By children

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ John C. Hill	06/30/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did CET CEO John C. Hill report on this Form 4?

John C. Hill reported buying 233 shares of Central Securities Corp common stock. The open-market purchases occurred on June 26, 2026 at a price of $51.87 per share, increasing both his direct and indirect ownership stakes.

How many CET shares did John C. Hill buy and at what price?

John C. Hill bought a total of 233 Central Securities Corp common shares. The purchases were executed at $51.87 per share, reflecting open-market transactions reported as code P for non-derivative common stock on the Form 4.

How many CET shares does John C. Hill own after these transactions?

After the June 26, 2026 purchases, John C. Hill directly owns 77,601 CET common shares. He also has indirect ownership of 906 shares held by his children, as reflected in the Form 4’s post-transaction holdings data.

Were John C. Hill’s CET share purchases direct or indirect holdings?

The Form 4 shows both direct and indirect CET holdings. He purchased 228 shares directly and 5 shares indirectly, with the indirect position labeled as held by his children, bringing those respective post-transaction totals to 77,601 and 906 shares.

What does transaction code P mean in John C. Hill’s CET Form 4 filing?

Transaction code P in the Form 4 indicates an open-market or private purchase. In this case, it shows that John C. Hill acquired Central Securities Corp common stock through open-market purchases rather than option exercises, gifts, or other types of transactions.