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Bridgeline Digital, Inc. (BLIN) institutional ownership

Latest close $1.15 Jul 29, 2026
Market cap$12M 52-week range SectorTechnology
Funds holding · Q1 2026
16
reported BLIN position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
5 buyers · 11 sellers

Bridgeline Digital, Inc. (BLIN) price and institutional activity

Dates

Q1 2026

$0 bought by 5 investors
Lido Advisors, LLCLpl Financial LLC +3 more
$0 sold by 11 investors
Bard Associates IncCitadel Advisors LLC +9 more
Bought Sold Totals per quarter; hover a bar for the names.

Bridgeline Digital, Inc. (BLIN) institutional activity · 16

Investor Type Est. change Change Δ Own Date
Bard Associates Inc · Reduced
Change −82K Date Q1 2026
Bard Associates Inc Reduced· Q1 2026 −82K Q1 2026
Citadel Advisors LLC Reduced· Q1 2026 −62K −52.4% Q1 2026
Drw Securities, LLC · Exited
Change −54K Δ Own −100.0% Date Q1 2026
Drw Securities, LLC Exited· Q1 2026 −54K −100.0% Q1 2026
Lido Advisors, LLC · Added
Change +21K Date Q1 2026
Lido Advisors, LLC Added· Q1 2026 +21K Q1 2026
Lpl Financial LLC · New
Change +19K Date Q1 2026
Lpl Financial LLC New· Q1 2026 +19K Q1 2026
Renaissance Technologies LLC Added· Q1 2026 +13K +8.6% Q1 2026
Virtu Financial LLC · Exited
Change −12K Δ Own −100.0% Date Q1 2026
Virtu Financial LLC Exited· Q1 2026 −12K −100.0% Q1 2026
Susquehanna International Group, LLP · Reduced
Change −8K Date Q1 2026
Susquehanna International Group, LLP Reduced· Q1 2026 −8K Q1 2026
Citigroup Inc · Reduced
Change −3K Date Q1 2026
Citigroup Inc Reduced· Q1 2026 −3K Q1 2026
Xtx Topco Ltd · Reduced
Change −3K Date Q1 2026
Xtx Topco Ltd Reduced· Q1 2026 −3K Q1 2026
Geode · Added
Change +539 Date Q1 2026
Geode Added· Q1 2026 +539 Q1 2026
Td Waterhouse Canada Inc. · New
Change +200 Date Q1 2026
Td Waterhouse Canada Inc. New· Q1 2026 +200 Q1 2026
Tower Research Capital LLC (trc) · Reduced
Change −195 Date Q1 2026
Tower Research Capital LLC (trc) Reduced· Q1 2026 −195 Q1 2026
Schonfeld Strategic Advisors LLC · Reduced
Change −109 Date Q1 2026
Schonfeld Strategic Advisors LLC Reduced· Q1 2026 −109 Q1 2026
Bank of America Corp · Exited
Change −85 Δ Own −100.0% Date Q1 2026
Bank of America Corp Exited· Q1 2026 −85 −100.0% Q1 2026
Data through Q1 2026 · filed May 15, 2026
15 of 16

Famous investor activity in Bridgeline Digital, Inc. (BLIN)

Bridgeline Digital, Inc. (BLIN) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Kahn Roger E. · Director, Officer, 10% Owner Buy +$9K
Price $0.93 Qty +10K Owned 1.8M Trade date Mar 10, 2026 Filed date Mar 11, 2026
Kahn Roger E. Director, Officer, 10% Owner Buy $0.93 +10K +$9K 1.8M Mar 10, 2026 Mar 11, 2026
Ketslakh Michael · Director Buy +$4K
Price $0.85 Qty +4K Owned 494K Trade date Mar 3, 2026 Filed date Mar 4, 2026
Ketslakh Michael Director Buy $0.85 +4K +$4K 494K Mar 3, 2026 Mar 4, 2026
Ketslakh Michael · Director Buy +$2K
Price $0.85 Qty +2K Owned 489K Trade date Mar 2, 2026 Filed date Mar 4, 2026
Ketslakh Michael Director Buy $0.85 +2K +$2K 489K Mar 2, 2026 Mar 4, 2026
Ketslakh Michael · Director Buy +$9K
Price $0.85 Qty +11K Owned 487K Trade date Feb 25, 2026 Filed date Feb 26, 2026
Ketslakh Michael Director Buy $0.85 +11K +$9K 487K Feb 25, 2026 Feb 26, 2026
Ketslakh Michael · Director Buy +$2K
Price $0.85 Qty +2K Owned 476K Trade date Feb 24, 2026 Filed date Feb 26, 2026
Ketslakh Michael Director Buy $0.85 +2K +$2K 476K Feb 24, 2026 Feb 26, 2026
Ketslakh Michael · Director Buy +$1K
Price $0.85 Qty +1K Owned 474K Trade date Feb 19, 2026 Filed date Feb 23, 2026
Ketslakh Michael Director Buy $0.85 +1K +$1K 474K Feb 19, 2026 Feb 23, 2026
Kahn Roger E. · Director, Officer, 10% Owner Buy +$4K
Price $0.85 Qty +5K Owned 1.8M Trade date Feb 19, 2026 Filed date Feb 19, 2026
Kahn Roger E. Director, Officer, 10% Owner Buy $0.85 +5K +$4K 1.8M Feb 19, 2026 Feb 19, 2026
Kahn Roger E. · Director, Officer, 10% Owner Buy +$11K
Price $0.82 Qty +14K Owned 1.8M Trade date Feb 18, 2026 Filed date Feb 19, 2026
Kahn Roger E. Director, Officer, 10% Owner Buy $0.82 +14K +$11K 1.8M Feb 18, 2026 Feb 19, 2026
Kahn Roger E. · Director, Officer, 10% Owner Buy +$26K
Price $0.75 Qty +35K Owned 1.7M Trade date Feb 17, 2026 Filed date Feb 19, 2026
Kahn Roger E. Director, Officer, 10% Owner Buy $0.75 +35K +$26K 1.7M Feb 17, 2026 Feb 19, 2026
Kahn Joni · Director Tax withholding or exercise payment (F) -$6K
Price $0.82 Qty -7K Owned 29K Trade date Jan 30, 2026 Filed date Mar 16, 2026
Kahn Joni Director Tax withholding or exercise payment (F) $0.82 -7K -$6K 29K Jan 30, 2026 Mar 16, 2026
Kahn Joni · Director Grant (A) 22K
Owned 37K Trade date Jan 30, 2026 Filed date Mar 16, 2026
Kahn Joni Director Grant (A) 22K 37K Jan 30, 2026 Mar 16, 2026
Galaznik Kenneth · Director Grant (A) 22K
Owned 43K Trade date Jan 30, 2026 Filed date Mar 16, 2026
Galaznik Kenneth Director Grant (A) 22K 43K Jan 30, 2026 Mar 16, 2026
Ketslakh Michael · Director Grant (A) 22K
Owned 64K Trade date Jan 30, 2026 Filed date Mar 16, 2026
Ketslakh Michael Director Grant (A) 22K 64K Jan 30, 2026 Mar 16, 2026
Ross Brandon · Director Tax withholding or exercise payment (F) -$6K
Price $0.82 Qty -8K Owned 78K Trade date Jan 30, 2026 Filed date Mar 16, 2026
Ross Brandon Director Tax withholding or exercise payment (F) $0.82 -8K -$6K 78K Jan 30, 2026 Mar 16, 2026
Ross Brandon · Director Grant (A) 22K
Owned 86K Trade date Jan 30, 2026 Filed date Mar 16, 2026
Ross Brandon Director Grant (A) 22K 86K Jan 30, 2026 Mar 16, 2026
15 of 17
15 of 17 Sign in to continue to older insider transactions.

Bridgeline Digital, Inc. (BLIN) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Kahn Roger E. 2.6M
% of shares outstanding 19.6% Filing date Feb 3, 2026
Kahn Roger E. 2.6M 19.6% Feb 3, 2026
Bard Associates Inc 1.1M
% of shares outstanding 9.7% Filing date Feb 13, 2026
Bard Associates Inc 1.1M 9.7% Feb 13, 2026
Jacobsen Per A. 1.0M
% of shares outstanding 9.6% Filing date Dec 23, 2024
Jacobsen Per A. 1.0M 9.6% Dec 23, 2024
Vanguard Group Inc 111K
% of shares outstanding 1.1% Filing date Nov 12, 2024
Vanguard Group Inc 111K 1.1% Nov 12, 2024
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Bridgeline Digital, Inc. (BLIN) ownership FAQ

Who owns BLIN?

16 reporting institutions disclosed BLIN position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.