Are insiders buying BLIN stock?

Yes — 5 distinct insiders have bought BLIN (Bridgeline Digital, Inc.) on the open market, including 3 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Mar 11, 2026.

How much BLIN stock have insiders bought?

Insiders have bought a combined $1.0M of BLIN across 24 open-market purchases, based on SEC Form 4 filings.

What is an insider cluster buy in BLIN?

A cluster buy is two or more distinct Bridgeline Digital, Inc. insiders — officers, directors, or 10% owners — each buying BLIN on the open market within a rolling window. BLIN has 3 detected cluster buys to date.

Where does this BLIN insider trading data come from?

Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

BLIN insider buying

3 cluster buys

Bridgeline Digital, Inc. · Technology

When two or more insiders at Bridgeline Digital, Inc. buy BLIN on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in BLIN plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.

Clusters

Distinct insiders

Total bought

$1.0M

Market cap

$17.1M

Detected clusters

Feb 17 – Mar 10, 2026
Detected Mar 10, 2026
High conviction2 insiders
Total bought
$69.7K
Market cap
$17.1M
Mar 26 – Aug 26, 2025
Detected Aug 26, 2025
High conviction3 insiders
Total bought
$893.3K
Market cap
$17.1M
Aug 20 – Sep 13, 2024
Detected Sep 13, 2024
High conviction2 insiders
Total bought
$71.9K
Market cap
$17.1M

All notable open-market buys in BLIN

Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.

Date	Insider	Shares	Price	Value	Filing
Mar 10, 2026	Kahn Roger E.cluster Director, President and CEO, 10% Owner	10,000	$0.93	$9.3K	SEC ↗
Mar 3, 2026	Ketslakh Michaelcluster Director	4,472	$0.85	$3.8K	SEC ↗
Mar 2, 2026	Ketslakh Michaelcluster Director	2,487	$0.85	$2.1K	SEC ↗
Feb 25, 2026	Ketslakh Michaelcluster Director	10,647	$0.85	$9.0K	SEC ↗
Feb 24, 2026	Ketslakh Michaelcluster Director	2,394	$0.85	$2.0K	SEC ↗
Feb 19, 2026	Kahn Roger E.cluster Director, President and CEO, 10% Owner	5,000	$0.85	$4.3K	SEC ↗
Feb 19, 2026	Ketslakh Michaelcluster Director	1,353	$0.85	$1.2K	SEC ↗
Feb 18, 2026	Kahn Roger E.cluster Director, President and CEO, 10% Owner	14,000	$0.82	$11.5K	SEC ↗
Feb 17, 2026	Kahn Roger E.cluster Director, President and CEO, 10% Owner	35,301	$0.75	$26.5K	SEC ↗
Aug 26, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	39,500	$1.38	$54.5K	SEC ↗
Jun 20, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	15,000	$1.50	$22.5K	SEC ↗
May 27, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	30,000	$1.53	$45.9K	SEC ↗
May 27, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	15,000	$1.53	$23.0K	SEC ↗
May 27, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	3,600	$1.54	$5.5K	SEC ↗
May 23, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	1,000	$1.55	$1.6K	SEC ↗
May 22, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	45,900	$1.58	$72.5K	SEC ↗
May 22, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	4,100	$1.55	$6.4K	SEC ↗
May 22, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	500	$1.54	$770.0	SEC ↗
Mar 26, 2025	Ketslakh Michaelcluster Director	394,736	$1.52	$600.0K	SEC ↗
Mar 26, 2025	Kahn Roger E.cluster Director, President and CEO, 10% Owner	33,334	$1.52	$50.7K	SEC ↗
Mar 26, 2025	KAHN JONIcluster Director	6,579	$1.52	$10.0K	SEC ↗
Sep 13, 2024	Kahn Roger E.cluster Director, President and CEO, 10% Owner	2,500	$1.04	$2.6K	SEC ↗
Aug 22, 2024	TAGLICH MICHAEL Ncluster Director	20,603	$0.89	$18.3K	SEC ↗
Aug 20, 2024	Kahn Roger E.cluster Director, President and CEO, 10% Owner	60,000	$0.85	$51.0K	SEC ↗

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BLIN insider buying — FAQ

Are insiders buying BLIN stock?: Yes — 5 distinct insiders have bought BLIN (Bridgeline Digital, Inc.) on the open market, including 3 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Mar 11, 2026.
How much BLIN stock have insiders bought?: Insiders have bought a combined $1.0M of BLIN across 24 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in BLIN?: A cluster buy is two or more distinct Bridgeline Digital, Inc. insiders — officers, directors, or 10% owners — each buying BLIN on the open market within a rolling window. BLIN has 3 detected cluster buys to date.
Where does this BLIN insider trading data come from?: Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

How we track insider buying in BLIN

We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy BLIN within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?

This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding BLIN.