First Keystone director buys 548 shares of stock

Rhea-AI Filing Summary

First Keystone Corp director Michael L. Jezewski reported three purchases of First Keystone Corporation common stock on May 27, 2026, totaling 548 shares in open-market or private transactions at per-share prices of $17.9700, $17.8950, and $17.9800, all held as direct ownership.

Following these transactions, he directly owned 44,618.817 shares of First Keystone Corporation common stock. The reported total is reduced by 325.330 shares that had previously been reported as indirectly held for his son, for which he is no longer custodian.

Insider Trade Summary

Net Buyer: 548 shares

Net Buy 3 txns

Insider Jezewski Michael L

Role Director

Bought 548 shs ($10K)

Type	Security	Shares	Price	Value
Purchase	First Keystone Corporation common stock	334	$17.97	$6K
Purchase	First Keystone Corporation common stock	109	$17.895	$2K
Purchase	First Keystone Corporation common stock	105	$17.98	$2K

Holdings After Transaction: First Keystone Corporation common stock — 44,618.817 shares (Direct)

Footnotes (1)

1. F1. The total shares reporting with this filing is reduced by 325.330 shares previously reported as indirectly held for his son and for which he is no longer custodian.

Key Figures

Purchase 1 shares: 334 shares Purchase 2 shares: 109 shares Purchase 3 shares: 105 shares +3 more

6 metrics

Purchase 1 shares 334 shares Non-derivative purchase on 2026-05-27 at $17.9700 per share

Purchase 2 shares 109 shares Non-derivative purchase on 2026-05-27 at $17.8950 per share

Purchase 3 shares 105 shares Non-derivative purchase on 2026-05-27 at $17.9800 per share

Total shares purchased 548 shares Net buy shares across reported transactions

Post-transaction direct holding 44,618.817 shares Direct ownership of First Keystone Corporation common stock following transactions

Reduced indirect shares 325.330 shares Shares previously reported as indirectly held for his son, no longer as custodian

Key Terms

Purchase in open market or private transaction, indirectly held, custodian

3 terms

Purchase in open market or private transaction financial

"transaction_code_description: Purchase in open market or private transaction"

indirectly held financial

"previously reported as indirectly held for his son"

custodian financial

"for which he is no longer custodian"

A custodian is a financial institution that holds and safeguards an investor's assets—such as stocks, bonds, or cash—and records transactions on the investor's behalf. Think of it as a trusted caretaker or safe-deposit box for investments; it helps prevent loss or theft, handles paperwork and transfers, and provides transparency and regulatory checks, so investors can focus on decisions rather than the mechanics or security of asset storage.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did FKYS director Michael L. Jezewski report?

Michael L. Jezewski reported buying 548 shares of First Keystone Corporation common stock on May 27, 2026. These were three open-market or private purchases at per-share prices of $17.9700, $17.8950, and $17.9800, all held as direct ownership.

How many FKYS shares does Michael L. Jezewski own after these purchases?

After these transactions, Michael L. Jezewski directly owned 44,618.817 shares of First Keystone Corporation common stock. This total reflects only his direct holdings and no longer includes certain shares previously reported as indirectly held for his son.

At what prices were the FKYS shares purchased by Michael L. Jezewski?

The reported FKYS share purchases were made at $17.9700, $17.8950, and $17.9800 per share. All three trades involved First Keystone Corporation common stock in non-derivative, open-market or private transactions on May 27, 2026.

Did the FKYS insider transaction involve a Rule 10b5-1 trading plan?

The report indicates the Rule 10b5-1 checkbox was not selected for these transactions. This means the purchases are not affirmatively identified there as being made pursuant to a Rule 10b5-1 trading plan under the form’s specific checkbox.

What change occurred to previously indirectly held FKYS shares for Jezewski?

The reported share total is reduced by 325.330 shares that had been reported as indirectly held for his son. He is no longer custodian for those shares, so they are no longer included in his reported holdings in this insider report.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/28/2026 - 09:38 AM 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^*

Jezewski Michael L

(Last) (First) (Middle)

111 WEST FRONT ST

PO BOX 289

(Street)

BERWICK PENNSYLVANIA 18603

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
FIRST KEYSTONE CORP [ FKYS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/27/2026

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
First Keystone Corporation common stock	05/27/2026		P		334	A	$17.97	44,404.817	D
First Keystone Corporation common stock	05/27/2026		P		109	A	$17.895	44,513.817	D
First Keystone Corporation common stock	05/27/2026		P		105	A	$17.98	44,618.817(1)	D

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:

1. The total shares reporting with this filing is reduced by 325.330 shares previously reported as indirectly held for his son and for which he is no longer custodian.

	Michael L. Jezewski	05/28/2026
	** 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)