Origin Bancorp CEO buys total 1,200 shares of OBK

Origin Bancorp (OBK) insider activity: Chairman, President and CEO Drake Mills reported open‑market purchases of common stock.

Rhea-AI Filing Summary

Origin Bancorp (OBK) insider activity: Chairman, President and CEO Drake Mills reported open‑market purchases of common stock. On 10/27/2025, he bought 800 shares at a weighted average price of $34.08 and 400 shares at $34.02.

Following these transactions, beneficial ownership stood at 148,634 shares direct, 3,866 shares by IRA, and 57,490 shares by issuer retirement plan. One purchase was executed in multiple trades within a price range of $34.01 to $34.17. These are routine Form 4 disclosures of insider share activity.

Insights

Insider trading compliance analyst

Routine insider purchases disclosed; limited direct impact.

Origin Bancorp disclosed open‑market buys by its CEO on 10/27/2025: 800 shares at a weighted average of $34.08 and 400 shares at $34.02. The filing also lists updated beneficial holdings across direct and indirect accounts.

The business significance is typically modest for single‑day purchases of this scale. The transaction used standard open‑market methods, with one trade executed across multiple prints in a $34.01–$34.17 range, which is typical market execution detail.

Subsequent filings may provide additional insider activity; actual market impact depends on size and frequency of future transactions disclosed under Section 16.

Insider Trade Summary

Net Buyer: 1,200 shares

Net Buy 3 txns

Insider Mills Drake

Role Chairman, President and CEO

Bought 1,200 shs ($41K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	400	$34.02	$14K
Purchase	Common Stock	800	$34.08	$27K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 3,866 shares (Indirect, By IRA); Common Stock — 148,634 shares (Direct); Common Stock — 57,490 shares (Indirect, BY ISSUER RETIREMENT PLAN)

Footnotes (1)

1. F1. This transaction was executed in multiple trades at prices ranging from $34.01 to $34.17. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

FAQ

What insider transaction did OBK disclose?

Drake Mills purchased 800 shares at $34.08 (weighted average) and 400 shares at $34.02 on 10/27/2025.

How many OBK shares does the CEO own after the transactions?

Reported beneficial ownership is 148,634 shares direct, 3,866 shares by IRA, and 57,490 shares by issuer retirement plan.

What price range were the trades executed in?

One purchase was executed in multiple trades within a range of $34.01 to $34.17.

Was this a derivative transaction?

No. The filing lists common stock transactions in Table I and shows no derivative entries in Table II.

Who is the reporting person for this OBK Form 4?

The reporting person is Drake Mills, Chairman, President and CEO of Origin Bancorp.

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

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Accepted by SEC EDGAR 10/29/2025 - 03:55 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^*

Mills Drake

(Last) (First) (Middle)

500 SOUTH SERVICE ROAD EAST

(Street)

RUSTON LA 71270

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Origin Bancorp, Inc. [ OBK ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman, President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
10/27/2025

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

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

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

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	10/27/2025		P		400	A	$34.02	3,866	I	By IRA
Common Stock	10/27/2025		P		800	A	$34.08(1)	148,634	D
Common Stock								57,490	I	BY ISSUER RETIREMENT PLAN

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. This transaction was executed in multiple trades at prices ranging from $34.01 to $34.17. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Remarks:

	/s/ Drake Mills	10/29/2025
	** 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.