SEC Form 4 · Updated Daily

BLIN

— BRIDGELINE DIGITAL, INC. Ownership

Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.

Financials Ownership

Current Reporting Owners

Owner	Role	Shares Owned	As Of	Last Activity
Seevolution, Inc.	10%+ Owner	2,000,000	2019-02-14	—
Kahn Roger E.	10%+ Owner · Director · Officer	1,773,736	2026-03-10	P
Westland Ventures, LLC	10%+ Owner	1,315,315	2012-03-26	—
Katz Erez	Officer	1,176,133	2010-10-29	—
MASSIE THOMAS L	Director · Officer	626,334	2013-08-15	G
COLDRICK WILLIAM	Director	108,667	2012-02-22	P
Cebula Gary M	Officer	107,666	2007-12-12	X
Ross Brandon	Director	85,848	2026-01-30	A
TAGLICH MICHAEL N	Director	82,831	2024-08-22	P
Zucker Brett Scott	Officer	81,305	2012-02-17	M
Ketslakh Michael	Director	63,986	2026-01-30	A
Galaznik Kenneth	Director	43,232	2026-01-30	A
KAHN JONI	Director	36,709	2026-01-30	A
Hegarty Robert M	Director	25,000	2012-02-29	P
Landers Scott E	Director	10,879	2018-02-12	A
Prinn Michael	Officer	9,650	2017-03-01	P
TAGLICH ROBERT	10%+ Owner · Director	1,710	2017-04-01	A
CAVALIER JOHN C	Director	499	2013-09-06	S

Recent Filings

Date	Owner	Activity	Shares	Price	Owned After
2026-03-10	Kahn Roger E.	Open-market buy	10,000	$0.93	1,773,736
2026-03-03	Ketslakh Michael	Open-market buy	4,472	$0.85	493,842
2026-03-02	Ketslakh Michael	Open-market buy	2,487	$0.85	489,370
2026-02-25	Ketslakh Michael	Open-market buy	10,647	$0.85	486,883
2026-02-24	Ketslakh Michael	Open-market buy	2,394	$0.85	476,236
2026-02-19	Kahn Roger E.	Open-market buy	5,000	$0.85	1,763,736
2026-02-19	Ketslakh Michael	Open-market buy	1,353	$0.85	473,842
2026-02-18	Kahn Roger E.	Open-market buy	14,000	$0.82	1,758,736
2026-02-17	Kahn Roger E.	Open-market buy	35,301	$0.75	1,744,736
2026-01-30	Kahn Roger E.	Grant / award	300,000	$0.82	1,709,435
2026-01-30	Windhausen Thomas R.	Grant / award (derivative)	50,000	$0.00	50,000
2026-01-30	Ross Brandon	Tax withholding	7,583	$0.82	78,265
2026-01-30	Ross Brandon	Grant / award	22,500	$0.00	85,848
2026-01-30	Ketslakh Michael	Grant / award	22,500	$0.00	63,986
2026-01-30	Galaznik Kenneth	Grant / award	22,500	$0.00	43,232
2026-01-30	KAHN JONI	Tax withholding	7,252	$0.82	29,457
2026-01-30	KAHN JONI	Grant / award	22,500	$0.00	36,709
2025-12-30	Kahn Roger E.	Option exercise (derivative)	1,000	$0.00	0
2025-12-30	Kahn Roger E.	Tax withholding	685	$0.90	1,409,435
2025-12-30	Kahn Roger E.	Option exercise	1,000	$0.81	1,410,120
2025-09-30	Windhausen Thomas R.	Grant / award (derivative)	50,000	$0.00	50,000
2025-09-30	Kahn Roger E.	Tax withholding	57,098	$1.32	1,409,120
2025-09-30	Kahn Roger E.	Grant / award	169,429	$0.00	1,466,218
2025-08-26	Kahn Roger E.	Open-market buy	39,500	$1.38	1,296,789
2025-06-26	Kahn Roger E.	Tax withholding	43,739	$1.51	1,242,436
2025-06-26	Kahn Roger E.	Grant / award	129,788	$0.00	1,286,175
2025-06-26	Ross Brandon	Tax withholding	6,785	$1.51	63,348
2025-06-26	Ross Brandon	Grant / award	20,133	$0.00	70,133
2025-06-26	KAHN JONI	Tax withholding	6,489	$1.51	14,209
2025-06-26	KAHN JONI	Grant / award	20,133	$0.00	20,698
2025-06-26	Ketslakh Michael	Grant / award	20,133	$0.00	472,489
2025-06-26	Galaznik Kenneth	Grant / award	20,133	$0.00	20,732
2025-06-20	Kahn Roger E.	Open-market buy	15,000	$1.50	1,257,289
2025-05-27	Kahn Roger E.	Open-market buy	15,000	$1.53	1,156,387
2025-05-27	Kahn Roger E.	Open-market buy	30,000	$1.53	1,141,387
2025-05-27	Kahn Roger E.	Open-market buy	3,600	$1.54	1,111,387
2025-05-23	Kahn Roger E.	Open-market buy	1,000	$1.55	1,107,787
2025-05-22	Kahn Roger E.	Open-market buy	500	$1.54	1,106,787
2025-05-22	Kahn Roger E.	Open-market buy	45,900	$1.58	1,106,287
2025-05-22	Kahn Roger E.	Open-market buy	4,100	$1.55	1,060,387

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.