Bridgeline Digital, Inc.
Bridgeline Digital, Inc. (BLIN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · BLIN · as of Sep 30, 2025
Ownership Breakdown
15
Institutional Holders
▲ 2 vs Q2
$2.55M
Total Inst. Value
▼ $182,821 vs Q2
12.60M
Shares Outstanding
freeFloat 80.75%
1.94M
13F Shares Held
▼ 31,485 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
BLIN largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BARD ASSOCIATES INC services-prepackaged software | 1.39M | 11.63% | 11.63% | $1.83B | Nov 14, 2025 | ▼ 15.2K |
RENAISSANCE TECHNOLOGIES LLC services-prepackaged software | 172.2K | 1.44% | 1.44% | $227.34M | Nov 13, 2025 | ▼ 11.6K |
GEODE CAPITAL MANAGEMENT, LLC services-prepackaged software | 126.0K | 1.06% | 1.06% | $165.17M | Nov 12, 2025 | ▲ 305 |
VANGUARD GROUP INC services-prepackaged software | 110.8K | 92.75% | 92.75% | $145.13M | Nov 7, 2025 | — held |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-prepackaged software | 54.2K | 45.36% | 45.36% | $70.99M | Nov 14, 2025 | ▼ 15.2K |
CITADEL ADVISORS LLC services-prepackaged software | 31.1K | 26.01% | 26.01% | $40.70M | Nov 14, 2025 | NEW |
STATE STREET CORP services-prepackaged software | 16.2K | 13.56% | 13.56% | $21.22M | Nov 14, 2025 | — held |
NORTHERN TRUST CORP services-prepackaged software | 11.6K | 9.67% | 9.67% | $15.25M | Nov 14, 2025 | — held |
XTX TOPCO LTD services-prepackaged software | 10.2K | 8.56% | 8.56% | $13.39M | Nov 14, 2025 | ▲ 10.2K |
SCHONFELD STRATEGIC ADVISORS LLC services-prepackaged software | 10.2K | 8.55% | 8.55% | $13.48M | Nov 14, 2025 | ▼ 8.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
3
Increased
+11.3K shares3
New Positions
first time holders6
Decreased
−62.4K shares1
Sold Out
fully exitedNet shares change (top 50)
51.2K
+11.3K / −62.4K
Net new holders
-1
3 new / 1 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
BLIN insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
11
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
KAHN JONI director | Jan 30, 2026 | Award | 22,500 | — | — | 36.7K | Form 4 ↗ |
KAHN JONI director | Jan 30, 2026 | Tax Withhold | 7,252 | $0.82 | $5.9K | 29.5K | Form 4 ↗ |
Galaznik Kenneth director | Jan 30, 2026 | Award | 22,500 | — | — | 43.2K | Form 4 ↗ |
Ketslakh Michael director | Jan 30, 2026 | Award | 22,500 | — | — | 64.0K | Form 4 ↗ |
Ross Brandon director | Jan 30, 2026 | Award | 22,500 | — | — | 85.8K | Form 4 ↗ |
Ross Brandon director | Jan 30, 2026 | Tax Withhold | 7,583 | $0.82 | $6.2K | 78.3K | Form 4 ↗ |
Kahn Roger E. President and CEO | Mar 10, 2026 | Purchase | 10,000 | $0.93 | $9.3K | 1.77M | Form 4 ↗ |
Ketslakh Michael director | Mar 3, 2026 | Purchase | 4,472 | $0.85 | $3.8K | 493.8K | Form 4 ↗ |
Ketslakh Michael director | Mar 2, 2026 | Purchase | 2,487 | $0.85 | $2.1K | 489.4K | Form 4 ↗ |
Ketslakh Michael director | Feb 25, 2026 | Purchase | 10,647 | $0.85 | $9.0K | 486.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Bridgeline Digital, Inc. (BLIN) is primarily owned by institutional investors, who hold approximately 15.4% of total shares outstanding. Company insiders own approximately 19.25%, while retail and public investors account for the remaining 65.38%.
The largest institutional shareholder of Bridgeline Digital, Inc. is BARD ASSOCIATES INC, holding approximately 1.39 million shares — equal to 11.63% of outstanding shares — as of September 30, 2025.
A total of 15 institutional investors currently hold BLIN stock, with a combined institutional value of approximately $2,553,102 as of the most recent 13F filing period.
Frequently asked questions
BLIN ownershipBridgeline Digital, Inc. (BLIN) is primarily owned by institutional investors, who hold approximately 15.4% of shares. The largest shareholder is BARD ASSOCIATES INC with a 11.63% stake. Company insiders hold 19.25%. Data sourced from SEC Form 13F as of September 30, 2025.