BLIN · Bridgeline Digital, Inc. · Shareholders & Ownership
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Every disclosed holder of BLIN in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns BLIN
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 1,588,228 | 12.61% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 3,649,777 | 28.97% |
| Remaining | 7,361,874 | 58.43% |
| Registered funds (N-PORT, not summed) | 178,907 | 1.42% |
Shares outstanding: 12,599,879, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of BLIN
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Kahn Roger E.
Insider
CIK 1651542 · Mar 10, 2026
Director, President and CEO, 10% Owner, issuer-wide, not summed
|
1,774,280 | ||
| 1.1 |
Kahn Roger E.
13D
CIK 1651542 · Unknown · Jan 30, 2026
Item 4 purpose: none of the classified purposes
|
2,649,777 | ||
| 2 |
BARD ASSOCIATES INC
13F
CIK 1105907 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,030,267 | ||
| 3 |
Jacobsen Per A.
13G
CIK 1968076 · Pension or benefit plan · Dec 23, 2024
Rule 13d-1(c), passive investor
|
1,000,000 | ||
| 4 |
|
493,842 | ||
| 5 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
156,729 | ||
| 6 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Sep 30, 2026
|
122,986 | ||
| 7 |
|
78,265 | ||
| 8 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
76,110 | ||
| 9 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
76,110 | ||
| 10 |
Lido Advisors, LLC
13F
CIK 1650150 · Registered investment adviser · Sep 30, 2026
|
57,620 | ||
| 11 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
51,464 | ||
| 12 |
|
43,232 | ||
| 13 |
|
36,036 | ||
| 14 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
34,680 | ||
| 15 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
22,350 | ||
| 16 |
LPL Financial LLC
13F
CIK 1403438 · Broker-dealer · Sep 30, 2026
|
22,010 | ||
| 17 |
XTX Topco Ltd
13F
CIK 1828301 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
21,774 | ||
| 18 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
21,258 | ||
| 19 |
|
16,200 | ||
| 20 |
Fidelity Nasdaq Composite Index Fund
Fund
S000055366 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
16,095 | ||
| 21 |
Fidelity Series Total Market Index Fund
Fund
S000065248 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
13,980 | ||
| 22 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,551 | ||
| 23 |
Schonfeld Strategic Advisors LLC
13F
CIK 1665241 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,113 | ||
| 24 |
Tower Research Capital LLC (TRC)
13F
CIK 1533421 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,422 | ||
| 25 |
|
2,020 | ||
| 26 |
CITIGROUP INC
13F
CIK 831001 · Bank · Sep 30, 2026
|
396 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.