Bridgeline Digital, Inc. (BLIN) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of BLIN are Roger E. Kahn (President And Ceo, 1.77Mn shares), Michael Ketslakh (Director, 493.84K shares), Michael Ketslakh (Director, 394.74K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Roger E. Kahn President And Ceo 1,773,736 0 11 Mar, 2026
Roger E. Kahn President And Ceo 1,056,287 0 28 Mar, 2025
Michael Ketslakh - 493,842 0 04 Mar, 2026
Roger E. Kahn President And Ceo 431,345 0 18 Aug, 2022
Michael Ketslakh - 0 394,736 28 Mar, 2025
Brandon Ross - 78,265 0 16 Mar, 2026
Kenneth Galaznik - 43,232 0 16 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
30 Jan, 2026 Kenneth Galaznik Common Stock A 22,500 $0.00 43,232 D A
30 Jan, 2026 Brandon Ross Common Stock A 22,500 $0.00 85,848 D A
30 Jan, 2026 Michael Ketslakh Common Stock A 22,500 $0.00 63,986 D A
30 Jan, 2026 Brandon Ross Common Stock D 7,583 $0.82 78,265 D F
10 Mar, 2026 Roger E. Kahn Common Stock A 10,000 $0.93 1,773,736 D P
02 Mar, 2026 Michael Ketslakh Common Stock A 2,487 $0.85 489,370 D P
03 Mar, 2026 Michael Ketslakh Common Stock A 4,472 $0.85 493,842 D P
24 Feb, 2026 Michael Ketslakh Common Stock A 2,394 $0.85 476,236 D P
25 Feb, 2026 Michael Ketslakh Common Stock A 10,647 $0.85 486,883 D P
19 Feb, 2026 Michael Ketslakh Common Stock A 1,353 $0.85 473,842 D P
17 Feb, 2026 Roger E. Kahn Common Stock A 35,301 $0.75 1,744,736 D P
18 Feb, 2026 Roger E. Kahn Common Stock A 14,000 $0.82 1,758,736 D P
19 Feb, 2026 Roger E. Kahn Common Stock A 5,000 $0.85 1,763,736 D P
30 Jan, 2026 Thomas R. Windhausen Stock Option (right to buy) A 50,000 $0.00 50,000 D A
30 Jan, 2026 Roger E. Kahn Common Stock A 300,000 $0.82 1,709,435 D A
30 Dec, 2025 Roger E. Kahn Common Stock A 1,000 $0.81 1,410,120 D M
30 Dec, 2025 Roger E. Kahn Common Stock D 685 $0.90 1,409,435 D F
30 Dec, 2025 Roger E. Kahn Stock option (right to buy) D 1,000 $0.00 0 D M
30 Sep, 2025 Roger E. Kahn Common Stock A 169,429 $0.00 1,466,218 D A
30 Sep, 2025 Thomas R. Windhausen Stock Option (right to buy) A 50,000 $0.00 50,000 D A