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BLIN · NASDAQ · Software - Infrastructure

Bridgeline Digital (BLIN)

Builds e-commerce search, SEO, and digital-experience software.

$0.8464
vs last close+0.00 (+0.16%)

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13F · 13D/G · Form 4

Institutions12.78%1.61M shares
15 holders · as of Jun 30, 2026
Insiders39.04%4.92M shares
7 holders · as of Mar 16, 2026
Other48.18%6.07M shares
remainder

12.60M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

13F · 13D/G · Form 4

HolderStakeSharesDate
Roger E. Kahn1,2Insiderdirector, 10 percent owner, officer: President and CEO
21.54%2.65Mfiled Mar 11, 2026
Bard Associates IncInstitution
8.18%1.03Mas of Jun 30, 2026
Per A. JacobsenInsider
6.71%845,000filed Nov 25, 2024
Roger “Ari” KahnInsider
5.90%743,892filed Aug 30, 2022
The Vanguard GroupInstitution
4.21%529,971filed Feb 13, 2024
Michael KetslakhInsiderdirector
3.64%458,722filed Mar 16, 2026
Renaissance Technologies LLCInstitution
1.24%156,729as of Jun 30, 2026
Geode Capital Management, LLCInstitution
0.98%124,054as of Jun 30, 2026
Lido Advisors, LLCInstitution
0.63%78,973as of Jun 30, 2026
Brandon RossInsiderdirector
0.62%78,265filed Mar 16, 2026
Vanguard Capital Management LLCInstitution
0.60%76,110as of Jun 30, 2026
Kenneth GalaznikInsiderdirector
0.34%43,232filed Mar 16, 2026
Joni KahnInsiderdirector
0.29%36,036filed Mar 16, 2026
Vanguard Fiduciary Trust CoInstitution
0.28%34,680as of Jun 30, 2026
Susquehanna International Group, LLPInstitution
0.18%22,350as of Jun 30, 2026
LPL Financial LLCInstitution
0.17%22,010as of Jun 30, 2026
XTX Topco LtdInstitution
0.17%21,774as of Jun 30, 2026
State Street CorpInstitution
0.13%16,200as of Jun 30, 2026
Northern Trust CorpInstitution
0.09%11,551as of Jun 30, 2026
Schonfeld Strategic Advisors LLCInstitution
0.08%10,113as of Jun 30, 2026
Tower Research Capital LLC (TRC)Institution
0.03%3,422as of Jun 30, 2026
UBS Group AGInstitution
0.02%2,020as of Jun 30, 2026
Barclays PLCInstitution
0.00%48as of Jun 30, 2026
Hudson Bay Capital Management LPInstitution
—9.99% of class, as filed—filed Feb 1, 2019
Waddell & Reed Investment Management CompanyInstitution
—5.40% of class, as filed—filed Mar 7, 2019
  1. Roger E. Kahn's transaction reports restate only vehicles that traded; the 2026 ownership statement (2.65M) plus the 64.3K net shares acquired since is used instead.
  2. Roger E. Kahn reports a block also reported by Waddell & Reed Investment Management Company; it is counted once, under Waddell & Reed Investment Management Company.

13F, as of Jun 30, 2026

15 holders · 1.61M shares · 1 new position · 3 increased · 7 reduced · 3 closed

HolderShares% outstandingChg q/qFiled
Bard Associates Inc1.03M8.18%−47.5KAug 12, 2026
Renaissance Technologies LLC156.7K1.24%−2.0KAug 13, 2026
Geode Capital Management, LLC124.1K0.98%−2.5KAug 12, 2026
Lido Advisors, LLC79.0K0.63%0Aug 7, 2026
Vanguard Capital Management LLC76.1K0.60%0Aug 13, 2026
Vanguard Fiduciary Trust Co34.7K0.28%0Aug 13, 2026
Susquehanna International Group, LLP22.4K0.18%−699Aug 14, 2026
LPL Financial LLC22.0K0.17%+3.0KAug 7, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Kahn Roger E.19.60%2.65M13DFeb 3, 2026
Bard Associates Inc9.70%1.09M13GFeb 13, 2026
Per A. Jacobsen8.11%845.0K13GNov 25, 2024

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Mar 10, 2026
Roger E. Kahndirector, 10 percent owner, officer: President and CEO
Purchase10,000$0.93001,773,736
Mar 2, 2026
Michael Ketslakhdirector
Purchase2,487$0.8500489,370
Mar 3, 2026
Michael Ketslakhdirector
Purchase4,472$0.8500493,842
Feb 24, 2026
Michael Ketslakhdirector
Purchase2,394$0.8500476,236
Feb 25, 2026
Michael Ketslakhdirector
Purchase10,647$0.8500486,883
Feb 19, 2026
Michael Ketslakhdirector
Purchase1,353$0.8500473,842
Feb 17, 2026
Roger E. Kahndirector, 10 percent owner, officer: President and CEO
Purchase35,301$0.75001,744,736
Feb 18, 2026
Roger E. Kahndirector, 10 percent owner, officer: President and CEO
Purchase14,000$0.82001,758,736
Feb 19, 2026
Roger E. Kahndirector, 10 percent owner, officer: President and CEO
Purchase5,000$0.85001,763,736

House and Senate disclosures

Not reported.