[Form 4] Bridgeline Digital, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Thomas R. Windhausen, Chief Financial Officer of Bridgeline Digital, Inc. (BLIN), received a grant of 50,000 stock options on 09/30/2025. The option has an exercise price of $1.32 and is exercisable through 09/30/2035. The option was reported as an acquisition (code A) and is held directly by Mr. Windhausen.

The grant vests ratably in twelve (12) equal quarterly installments beginning on the first fiscal quarter following the grant date, and the filing was signed by Mr. Windhausen on 10/02/2025. The Form 4 discloses no other transactions or derivative holdings.

Positive

• 50,000 stock options granted to CFO, indicating a compensation alignment
• Option exercise price set at $1.32, documented in filing
• Vesting schedule clear: 12 equal quarterly installments starting after the grant

Negative

• None.

Insights

Executive Compensation Analyst

CFO granted 50,000 options at $1.32, vesting over 12 quarters.

The filing confirms a standard equity grant to align the CFO’s incentives with shareholders: 50,000 options with a $1.32 exercise price and a 10-year contractual term through 09/30/2035. The vesting schedule is explicit: ratable quarterly vesting across 12 installments beginning the first fiscal quarter after grant.

This Form 4 reports acquisition (code A) and direct ownership only; no disposals or indirect holdings are disclosed.

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).

1. Name and Address of Reporting Person^*

Windhausen Thomas R.

(Last) (First) (Middle)

100 SYLVAN RD. SUITE G-700

(Street)

WOBURN MA 01801

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Bridgeline Digital, Inc. [ BLIN ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2025

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

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
Stock Option (right to buy)	$1.32	09/30/2025		A		50,000		(1)	09/30/2035	Common Stock	50,000	$0	50,000	D

Explanation of Responses:

1. The option vests ratably in twelve (12) equal quarterly installments beginning on the first fiscal quarter following the date of grant.

	/s/ Thomas R. Windhausen	10/02/2025
	** 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.

FAQ

What did Bridgeline Digital (BLIN) report on this Form 4?

The Form 4 reports that CFO Thomas R. Windhausen was granted 50,000 stock options on 09/30/2025 with an exercise price of $1.32.

When do the options vest and when do they expire?

The options vest ratably in 12 equal quarterly installments beginning the first fiscal quarter after the grant and expire on 09/30/2035.

How is ownership recorded on the Form 4?

The options were reported as an acquisition (code A) and are held directly by the reporting person after the transaction.

Who signed and filed the Form 4 for BLIN?

The Form 4 was signed by Thomas R. Windhausen on 10/02/2025.

What is the exercise price per option?

The exercise price disclosed on the Form 4 is $1.32 per share.