Bridgeline Digital, Inc. (BLIN) Insider Trading
Over the last 3 months, BLIN insiders made 1 open-market buy and 0 sales, a net purchase of $9K (SEC Form 4). Over the last 6 months, 10 institutions increased and 12 reduced their position (13F).
Insider Activity
Sentiment
100/100
Buys (3m)
1
Sells (3m)
0
Net (3m)
$9.3K
Insiders buying
Insider trades by month Buys Sells
Sep
Mar
May
Aug
Feb
Mar
Context3-month price +25.2%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Mar 16, 2026 | Ross Brandondirector | Tax | 7,583 | $0.82 |
| Mar 16, 2026 | Ross Brandondirector | Grant | 22,500 | — |
| Mar 16, 2026 | KAHN JONIdirector | Tax | 7,252 | $0.82 |
| Mar 16, 2026 | Galaznik Kennethdirector | Grant | 22,500 | — |
| Mar 16, 2026 | Ketslakh Michaeldirector | Grant | 22,500 | — |
| Mar 16, 2026 | KAHN JONIdirector | Grant | 22,500 | — |
| Mar 11, 2026 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Buy | 10,000 | $0.93 |
| Mar 4, 2026 | Ketslakh Michaeldirector | Buy | 2,487 | $0.85 |
| Mar 4, 2026 | Ketslakh Michaeldirector | Buy | 4,472 | $0.85 |
| Feb 26, 2026 | Ketslakh Michaeldirector | Buy | 2,394 | $0.85 |
| Feb 26, 2026 | Ketslakh Michaeldirector | Buy | 10,647 | $0.85 |
| Feb 23, 2026 | Ketslakh Michaeldirector | Buy | 1,353 | $0.85 |
| Feb 19, 2026 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Buy | 14,000 | $0.82 |
| Feb 19, 2026 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Buy | 35,301 | $0.75 |
| Feb 19, 2026 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Buy | 5,000 | $0.85 |
| Feb 2, 2026 | Windhausen Thomas R.officer: Chief Financial Officer | Grant | 50,000 | $0.82 |
| Feb 2, 2026 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Grant | 300,000 | $0.82 |
| Dec 31, 2025 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Option | 1,000 | $0.81 |
| Dec 31, 2025 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Tax | 685 | $0.90 |
| Oct 2, 2025 | Windhausen Thomas R.officer: Chief Financial Officer | Grant | 50,000 | $1.32 |
| Oct 2, 2025 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Grant | 169,429 | — |
| Oct 2, 2025 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Tax | 57,098 | $1.32 |
| Aug 28, 2025 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Buy | 15,000 | $1.50 |
| Aug 28, 2025 | Kahn Roger E.director, 10 percent owner, officer: President and CEO | Buy | 39,500 | $1.38 |
| Jun 30, 2025 | Ross Brandondirector | Grant | 20,133 | — |
| Jun 30, 2025 | Galaznik Kennethdirector | Grant | 20,133 | — |
| Jun 30, 2025 | Ketslakh Michaeldirector | Grant | 20,133 | — |
| Jun 30, 2025 | KAHN JONIdirector | Grant | 20,133 | — |
| Jun 30, 2025 | KAHN JONIdirector | Tax | 6,489 | $1.51 |
| Jun 30, 2025 | Ross Brandondirector | Tax | 6,785 | $1.51 |
Source: BLIN SEC Form 4 filings, latest Mar 16, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their BLIN positions over the last 6 months (SEC Form 13F).
Increased
10
New positions
7
Reduced
12
Sold out
4
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BARD ASSOCIATES INC | Reduced | 1.2M | Feb 13, 2026 |
| BARD ASSOCIATES INC | Reduced | 1.1M | May 8, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 159K | May 14, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 146K | Feb 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 127K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Unchanged | 126K | Feb 9, 2026 |
| CITADEL ADVISORS LLC | Increased | 118K | Feb 17, 2026 |
| VANGUARD GROUP INC | Unchanged | 111K | Jan 29, 2026 |
| LIDO ADVISORS, LLC | Increased | 79K | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 76K | May 15, 2026 |
| LIDO ADVISORS, LLC | New Position | 58K | Feb 10, 2026 |
| CITADEL ADVISORS LLC | Reduced | 56K | May 15, 2026 |
| DRW SECURITIES, LLC | New Position | 54K | Feb 12, 2026 |
| VANGUARD FIDUCIARY TRUST CO | New Position | 35K | May 8, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 31K | Feb 17, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.