Security key
10807Q700
Bridgeline Digital, Inc. - Common Stock (BLIN)
CUSIP: 10807Q700
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 1,718,153
- Total 13F value
- $1,369,423
- Share change
- -170,322
- SEC-reported price per share
- $0.80
- Number of holders
- 17
- Value change
- -$137,752
- Number of buys
- 5
- Number of sells
- 11
- Shares outstanding
- 11,248,309
Holder snapshot
6 signals
Security identity
1 source field
Report period
Q1 2026
Institutions
17
Top holders
10
BLIN full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
Bridgeline Digital, Inc. SEC filings
Bridgeline Digital, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 10807Q700
Recent filing periods:
Ownership snapshot
Top reported holders of BLIN - Bridgeline Digital, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Roger E. Kahn
Disclosed value leader
Roger E. Kahn
Comparable rows
15/15
Latest evidence
02 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 20%
13D/G row: Roger E. Kahn
Showing 1-6 of 15 holder rows.
Quick read
Roger E. Kahn leads the comparable SEC ownership view at 20%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
Roger E. Kahn
20%
BARD ASSOCIATES INC
9.7%
Jacobsen Per A.
9.6%
Michael Ketslakh
4.6%
Kenneth Galaznik
0.38%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Roger E. Kahn |
13D/G
3/4/5
Kahn Roger E. · President and CEO, Director, 10%+ Owner
|
20%
|
$2,464,293
2,649,777 shares
|
+$444,830 | 30 Jan 2026 |
| BARD ASSOCIATES INC |
13F
13D/G
Company
|
9.7%
from 13D/G
|
$962,475
1,159,328 shares
|
— | 31 Dec 2025 |
| Jacobsen Per A. |
13D/G
|
9.6%
|
$1,540,000
1,000,000 shares
|
$0 | 23 Dec 2024 |
| Michael Ketslakh |
3/4/5
Director
|
4.6%
|
$428,562
516,342 shares
|
+$18,150 | 02 Mar 2026 |
| Kenneth Galaznik |
3/4/5
Director
|
0.38%
|
$35,882
43,232 shares
|
— | 30 Jan 2026 |
| Joni Kahn |
3/4/5
Director
|
0.32%
|
$29,909
36,036 shares
|
— | 30 Jan 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
17
Shares
1,718,153
Rows available
17
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
18
Q1 2026 holders
17
Holder diff
-1
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend