Ari Kahn boosts Bridgeline Digital (NASDAQ: BLIN) beneficial stake to 19.6%

Rhea-AI Filing Summary

Bridgeline Digital, Inc. insider Roger “Ari” Kahn filed Amendment No. 8 to his Schedule 13D to update his ownership in the company’s common stock.

As of this amendment, Kahn beneficially owns 2,649,777 shares of Bridgeline common stock, representing 19.6% of the class, based on 12,599,879 shares outstanding as of January 30, 2026.

The update reflects several recent equity events: on September 30, 2025, he received a restricted stock award of 169,429 shares, with 57,098 shares withheld for taxes, resulting in a net issuance of 112,331 shares. On December 30, 2025, he exercised an option for 1,000 shares at an exercise price of $0.81 per share, delivering 685 shares to cover the exercise price. On January 30, 2026, he received an additional restricted stock award of 300,000 shares.

The filing also notes that Kahn’s beneficial ownership includes 544 shares held by his spouse and 939,798 option shares that are vested or will vest within 60 days of February 3, 2026. Aside from the equity awards and option exercise described, he reports no other transactions in the company’s stock during the prior 60 days.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 8)

Bridgeline Digital, Inc.

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

10807Q700

(CUSIP Number)

Roger "Ari" Kahn
C/O Bridgeline Digital, Inc., 100 Sylvan Road, Suite G700
Woburn, MA, 01801
(781) 376-5555

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

01/30/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 10807Q700

1

Name of reporting person

Kahn Roger E.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

PF, OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 2,649,233.00
8	Shared Voting Power 544.00
9	Sole Dispositive Power 2,649,233.00
10	Shared Dispositive Power 544.00

11

Aggregate amount beneficially owned by each reporting person

2,649,777.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

19.6 %

14

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, par value $0.001 per share
(b)	Name of Issuer: Bridgeline Digital, Inc.
(c)	Address of Issuer's Principal Executive Offices: 100 TRADE CENTER, SUITE G-700, WOBURN, MASSACHUSETTS , 01801.
Item 1 Comment: This Amendment No. 8 ("Amendment No. 8") amends the statement on Schedule 13D originally filed by Roger "Ari" Kahn with the United States Securities and Exchange Commission (the "SEC") on August 30, 2022, as amended by Amendment No. 1, filed with the SEC on September 20, 2022, Amendment No. 2, filed with the SEC on February 2, 2023, Amendment No. 3, filed with the SEC on March 15, 2023, Amendment No. 4, filed with the SEC on June 21, 2023, Amendment No. 5, filed with the SEC on September 19, 2023, Amendment No. 6, filed with the SEC on August 22, 2024, and Amendment No. 7, filed with the SEC on August 28, 2025 (collectively, the "Report"). This Amendment No. 8 relates to the issued and outstanding shares of common stock, par value $0.001 per share (the "Common Stock"), of Bridgeline Digital, Inc., a Delaware corporation (the "Issuer"). The principal executive offices of the Issuer are located at 100 Sylvan Road, Suite G700, Woburn, Massachusetts. Information contained in the Report remains effective except to the extent that it is amended, restated, or superseded by the information contained in this Amendment No. 8. All capitalized terms used herein and not otherwise defined in this Amendment No. 8 have the meaning set forth in the Report.
Item 3.	Source and Amount of Funds or Other Consideration
	Item 3 of the Report is hereby amended and supplemented by adding the following information: On September 30, 2025, Mr. Kahn received a restricted stock award of 169,429 shares of Issuer Common Stock pursuant to the Issuer's 2025 Stock Incentive Plan (the "2025 Plan"), of which 57,098 shares were withheld by the Issuer to satisfy Mr. Kahn's tax withholding obligations, resulting in a net issuance to Mr. Kahn of 112,331 shares of Issuer Common Stock. On December 30, 2025, Mr. Kahn exercised a stock option to purchase 1,000 shares of Issuer Common Stock at an exercise price of $0.81 per share, of which 685 shares were delivered by Mr. Kahn to satisfy the exercise price. On January 30, 2026, Mr. Kahn received a restricted stock award of 300,000 shares of Issuer Common Stock pursuant to the Issuer's 2025 Plan.
Item 4.	Purpose of Transaction
	Item 4 of the Report is hereby amended and supplemented to incorporate by reference the disclosure made under Item 3.
Item 5.	Interest in Securities of the Issuer
(a)	As of the date of this Amendment No. 8, Mr. Kahn beneficially owns 2,649,777 shares of Issuer Common Stock (comprised of (i) 1,709,979 shares of Issuer Common Stock (including 544 shares owned by Mr. Kahn's spouse), and (ii) options to acquire 939,798 shares of Issuer Common Stock which have vested or which will vest within 60 days of February 3, 2026, which number of shares represents approximately 19.6% of the outstanding Issuer Common Stock based on 12,599,879 shares issued and outstanding as of January 30, 2026. The percentage of ownership reported in this Item 5 was calculated in accordance with Rule 13d-3(d)(1)(i) promulgated under the Securities Exchange Act of 1934, as amended.
(b)	Mr. Kahn may be deemed to have the sole power to vote or direct the vote, or to dispose or direct the disposition, of an aggregate of 2,649,233 shares of Issuer Common Stock. For the purposes hereof, Mr. Kahn may be deemed to beneficially own an aggregate of 544 shares of Issuer Common Stock owned by his spouse.
(c)	Except as described in Item 3, which is hereby incorporated by reference, Mr. Kahn has not effected any transaction in Issuer Common Stock during the past 60 days.
(d)	Not applicable.
(e)	Not applicable.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Kahn Roger E.

Signature:	Roger "Ari" Kahn
Name/Title:	Roger "Ari" Kahn
Date:	02/03/2026

FAQ

What does Roger "Ari" Kahn’s latest Schedule 13D/A say about his BLIN stake?

The amendment reports that Roger "Ari" Kahn beneficially owns 2,649,777 shares of Bridgeline Digital common stock, representing 19.6% of the class. This total includes directly held shares, 544 spouse shares, and 939,798 vested or soon‑to‑vest option shares.

How did Roger "Ari" Kahn’s Bridgeline (BLIN) ownership change in late 2025 and early 2026?

Kahn received a 169,429‑share restricted stock award on September 30, 2025, with 57,098 shares withheld for taxes, netting 112,331 shares. He exercised an option for 1,000 shares at $0.81 on December 30, 2025, and received another 300,000‑share restricted award on January 30, 2026.

What percentage of Bridgeline Digital’s common stock does Roger "Ari" Kahn beneficially own?

The filing states that Roger "Ari" Kahn beneficially owns approximately 19.6% of Bridgeline Digital’s outstanding common stock. This percentage is calculated using 12,599,879 shares issued and outstanding as of January 30, 2026, in line with Rule 13d‑3(d)(1)(i).

How many Bridgeline (BLIN) shares underlying options are included in Kahn’s beneficial ownership?

Kahn’s reported beneficial ownership includes options to acquire 939,798 shares of Bridgeline common stock. These options have vested or will vest within 60 days of February 3, 2026, so they are counted under beneficial ownership rules for the Schedule 13D calculation.

Did Roger "Ari" Kahn have other recent transactions in Bridgeline Digital stock?

The amendment explains that, aside from the restricted stock awards and the December 30, 2025 option exercise described in Item 3, Kahn has not effected any other transactions in Bridgeline Digital common stock during the 60 days preceding the filing date of this amendment.

What does the filing say about shares held by Roger "Ari" Kahn’s spouse in BLIN?

The document notes that Kahn may be deemed to beneficially own 544 shares of Bridgeline common stock held by his spouse. These spouse‑held shares are included in both his aggregate 2,649,777‑share beneficial ownership and the 19.6% ownership percentage reported.