Marin Software Incorporated
Marin Software Incorporated (MRIN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MRIN · as of Jun 30, 2025
Ownership Breakdown
2
Institutional Holders
▼ 9 vs Q1
$91
Total Inst. Value
▼ $206,553 vs Q1
3.19M
Shares Outstanding
freeFloat 90.73%
101
13F Shares Held
▼ 152,953 vs Q1
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
MRIN largest shareholders · institutional ownership
Q2 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
SBI SECURITIES CO., LTD. services-computer processing & data preparation | 100 | 0.32% | 0.32% | $90,000 | Aug 8, 2025 | NEW |
ADVISOR GROUP HOLDINGS, INC. services-computer processing & data preparation | 1 | 0.00% | 0.00% | $1,000 | Aug 13, 2025 | — held |
GROUP ONE TRADING, L.P. services-computer processing & data preparation | 0 | 0.00% | 0.00% | $0 | Aug 14, 2025 | EXIT |
BRIDGEWAY CAPITAL MANAGEMENT, LLC services-computer processing & data preparation | 0 | 0.00% | 0.00% | $0 | Aug 14, 2025 | EXIT |
TWO SIGMA INVESTMENTS, LP services-computer processing & data preparation | 0 | 0.00% | 0.00% | $0 | Aug 14, 2025 | EXIT |
GEODE CAPITAL MANAGEMENT, LLC services-computer processing & data preparation | 0 | 0.00% | 0.00% | $0 | Aug 8, 2025 | EXIT |
TOWER RESEARCH CAPITAL LLC (TRC) services-computer processing & data preparation | 0 | 0.00% | 0.00% | $0 | Aug 15, 2025 | EXIT |
CONNECTIVE CAPITAL MANAGEMENT, LLC services-computer processing & data preparation | 0 | 0.00% | 0.00% | $0 | Aug 13, 2025 | EXIT |
UBS GROUP AG services-computer processing & data preparation | 0 | 0.00% | 0.00% | $0 | Aug 14, 2025 | EXIT |
BANK OF AMERICA CORP /DE/ services-computer processing & data preparation | 0 | 0.00% | 0.00% | $0 | Aug 14, 2025 | EXIT |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q2 2025 vs prior quarter
Q2 2025
0
Increased
+0 shares1
New Positions
first time holders0
Decreased
−0 shares10
Sold Out
fully exitedNet shares change (top 50)
+0
+0 / −0
Net new holders
-9
1 new / 10 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MRIN insider trading · insider activity
Source: SEC Form 4
3
Buy transactions
6
Sell transactions
0.50
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 |
|---|---|---|---|---|---|---|---|
Hutchison Donald P. director | Sep 5, 2025 | J-Other | 2,816 | $24.00 | $67.6K | 0 | Form 4 ↗ |
Hutchison Donald P. director | Sep 5, 2025 | J-Other | 1,428 | $90.30 | $128.9K | 0 | Form 4 ↗ |
Hutchison Donald P. director | Sep 5, 2025 | J-Other | 1,428 | $67.20 | $96.0K | 0 | Form 4 ↗ |
Hutchison Donald P. director | Sep 5, 2025 | J-Other | 1,428 | $39.60 | $56.5K | 0 | Form 4 ↗ |
Hutchison Donald P. director | Sep 5, 2025 | J-Other | 31,653 | — | — | 0 | Form 4 ↗ |
Lien Christopher A. CEO | Sep 5, 2025 | J-Other | 1,428 | $90.30 | $128.9K | 0 | Form 4 ↗ |
Lien Christopher A. CEO | Sep 5, 2025 | J-Other | 10,000 | $24.00 | $240.0K | 0 | Form 4 ↗ |
Lien Christopher A. CEO | Sep 5, 2025 | J-Other | 20 | — | — | 0 | Form 4 ↗ |
Kinion Brian K director | Sep 5, 2025 | J-Other | 33,815 | — | — | 0 | Form 4 ↗ |
Kinion Brian K director | Sep 5, 2025 | J-Other | 2,816 | $24.00 | $67.6K | 0 | 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
Marin Software Incorporated (MRIN) is primarily owned by institutional investors, who hold approximately 0.0% of total shares outstanding. Company insiders own approximately 9.27%, while retail and public investors account for the remaining 90.72%.
The largest institutional shareholder of Marin Software Incorporated is SBI SECURITIES CO., LTD., holding approximately 100 shares — equal to 0.32% of outstanding shares — as of June 30, 2025.
A total of 2 institutional investors currently hold MRIN stock, with a combined institutional value of approximately $91 as of the most recent 13F filing period.
Frequently asked questions
MRIN ownershipMarin Software Incorporated (MRIN) is primarily owned by institutional investors, who hold approximately 0.0% of shares. The largest shareholder is SBI SECURITIES CO., LTD. with a 0.32% stake. Company insiders hold 9.27%. Data sourced from SEC Form 13F as of June 30, 2025.