Senseonics Holdings Ownership | Who Owns Senseonics Holdings?
Senseonics Holdings Ownership Summary
Senseonics Holdings is owned by 14.76% institutional investors, 9.00% insiders, and 76.25% retail investors. Marshall wace, llp is the largest institutional shareholder, holding 0.35% of SENS shares.
SENS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Senseonics Holdings | 14.76% | 9.00% | 76.25% |
| Sector | Healthcare Stocks | 232.64% | 10.66% | -143.30% |
| Industry | Medical Device Stocks | 37.54% | 10.61% | 51.85% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Marshall wace, llp | 155.91K | 0.35% | $860.60M |
| Omers administration | 56.90K | 0.13% | $314.09K |
| Barclays | 37.50K | 0.08% | $207.00K |
| Dimensional fund advisors lp | 29.07K | 0.06% | $160.46K |
| Aristides capital | 25.10K | 0.06% | $138.55K |
| Hudson bay capital management lp | 15.45K | 0.03% | $85.28K |
| Jefferies financial group | 14.81K | 0.03% | $81.75K |
| Sanctuary advisors | 12.90K | 0.03% | $71.20K |
| Townsend asset management corp /nc/ /adv | 10.93K | 0.02% | $60.32K |
| Gsk | 10.86K | 0.02% | $59.92K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Keynote financial services | 10.31K | 0.03% | $56.93K |
| Aristides capital | 25.10K | 0.02% | $138.55K |
| Townsend asset management corp /nc/ /adv | 10.93K | 0.02% | $60.32K |
| Gsk | 10.86K | 0.01% | $59.92K |
| Pfizer | 2.17K | 0.01% | $11.98K |
| Omers administration | 56.90K | 0.00% | $314.09K |
| Quarry lp | 1.92K | 0.00% | $10.60K |
| Marshall wace, llp | 155.91K | 0.00% | $860.60M |
| Jefferies financial group | 14.81K | 0.00% | $81.75K |
| Sanctuary advisors | 12.90K | 0.00% | $71.20K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Marshall wace, llp | 155.91K | 0.00% | 155.91K |
| Omers administration | 56.90K | 0.00% | 56.90K |
| Barclays | 37.50K | - | 37.50K |
| Dimensional fund advisors lp | 29.07K | - | 29.07K |
| Aristides capital | 25.10K | 0.02% | 25.10K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Vanguard group | - | - | -34.22M |
| Blackrock funding, inc. /de | - | - | -15.61M |
| Geode capital management | - | - | -8.98M |
| Charles schwab investment management | - | - | -4.40M |
| State street | - | - | -4.39M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Marshall wace, llp | 155.91K | 0.00% | 155.91K | $860.60M |
| Omers administration | 56.90K | 0.00% | 56.90K | $314.09K |
| Barclays | 37.50K | - | 37.50K | $207.00K |
| Dimensional fund advisors lp | 29.07K | - | 29.07K | $160.46K |
| Aristides capital | 25.10K | 0.02% | 25.10K | $138.55K |
Sold Out
| Holder | Change |
|---|---|
| Tradewinds capital management | -2.00 |
| Zrc wealth management | -430.00 |
| Moneta group investment advisors | -821.00 |
| Fifth third bancorp | -865.00 |
| Truvestments capital | -1.00K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | 88 | -30.16% | 6,634,040 | -94.35% | 14 | 8.64% | 40 | -13.04% | 45 | 40.63% |
| Sep 30, 2025 | 124 | -15.65% | 117,481,716 | -22.52% | 19 | 3.04% | 46 | -17.86% | 31 | 6.90% |
| Jun 30, 2025 | 147 | -2.00% | 151,623,900 | 74.82% | 25 | 17.50% | 56 | -12.50% | 29 | 7.41% |
| Mar 31, 2025 | 150 | 14.50% | 86,731,176 | 8.56% | 12 | 7.29% | 64 | 20.75% | 27 | 50.00% |
| Dec 31, 2024 | 131 | -3.68% | 79,889,022 | 34.64% | 12 | 14.09% | 53 | 39.47% | 18 | -35.71% |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 13, 2026 | ROEDER DOUGLAS A | - | Buy | $100.28K |
| Mar 13, 2026 | Goodnow Timothy T | President and CEO | Buy | $99.73K |
| Nov 10, 2025 | Steven Edelman | - | Buy | $65.50K |
| Nov 07, 2025 | ROEDER DOUGLAS A | - | Buy | $87.45K |
| Nov 07, 2025 | Sullivan Frederick T. | Chief Financial Officer | Buy | $31.84K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | - |
| 2026 Q1 | 2 | - |
| 2025 Q4 | 4 | - |
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
SENS Ownership FAQ
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