SENSEONICS HLDGS INC (SENS)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 20,849,317 shares against 52,874,053 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Sessa Capital IM, L.P. | $25.2M | 4,437,532 | 0.42% | 2q | +151.3%+$15.2M |
| BlackRock, Inc. | $15.9M | 2,793,558 | 0.00% | 3q | +391.2%+$12.6M |
| VANGUARD CAPITAL MANAGEMENT LLC | $10.1M | 1,779,398 | 0.00% | 2q | +10.0%+$921.3K |
| Avidity Partners Management LP | $9.1M | 1,600,000 | 1.46% | new | NEW |
| Sio Capital Management, LLC | $9.0M | 1,592,692 | 1.50% | 3q | +1275.6%+$8.4M |
| UBS Group AG | $8.4M | 1,487,429 | 0.00% | 3q | +231.8%+$5.9M |
| GEODE CAPITAL MANAGEMENT, LLC | $6.4M | 1,132,210 | 0.00% | 3q | +142.7%+$3.8M |
| MASTERS CAPITAL MANAGEMENT LLC | $4.0M | 700,000 | 0.10% | 3q | +40.0%+$1.1M |
| STATE STREET CORP | $2.9M | 511,117 | 0.00% | 3q | +183.5%+$1.9M |
| MARSHALL WACE, LLP | $2.3M | 405,695 | 0.00% | 3q | -12.6%-$333.3K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2.3M incl. $2.2M options CALL+PUT | 12,855 | 0.00% | 3q | -94.4%-$38.6M |
| BANK OF AMERICA CORP /DE/ | $2.2M | 394,465 | 0.00% | 3q | +592.5%+$1.9M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.2M | 393,211 | 0.00% | 3q | +77.8%+$977.2K |
| NORTHERN TRUST CORP | $1.9M | 332,266 | 0.00% | 3q | +303.8%+$1.4M |
| VANGUARD FIDUCIARY TRUST CO | $1.9M | 331,353 | 0.00% | 2q | +47.2%+$603.1K |
| Walleye Capital LLC | $1.8M | 324,264 | 0.01% | new | NEW |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $1.5M | 272,375 | 0.00% | new | NEW |
| GOLDMAN SACHS GROUP INC | $1.3M | 231,509 | 0.00% | 3q | +58.3%+$484.1K |
| MORGAN STANLEY | $937.1K | 164,984 | 0.00% | 3q | +33.1%+$233.1K |
| Russell Investments Group, Ltd. | $870.3K | 153,216 | 0.00% | 2q | +2188700.0%+$870.2K |
| Trexquant Investment LP | $767.5K | 135,128 | 0.00% | new | NEW |
| Ghisallo Capital Management LLC | $710.0K | 125,000 | 0.01% | new | NEW |
| IMC-Chicago, LLC | $599.8K CALL+PUT | options only | 0.00% | 3q | OPTIONS |
| READYSTATE ASSET MANAGEMENT LP | $573.7K | 101,000 | 0.02% | new | NEW |
| Penn Capital Management Company, LLC | $534.7K | 94,140 | 0.03% | new | NEW |
| SEI INVESTMENTS CO | $487.0K | 85,738 | 0.00% | 3q | +72.9%+$205.3K |
| Bank of New York Mellon Corp | $479.9K | 84,483 | 0.00% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $450.0K | 79,218 | 0.00% | 3q | -85.9%-$2.7M |
| FOX RUN MANAGEMENT, L.L.C. | $402.7K | 70,898 | 0.07% | new | NEW |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $387.9K | 68,300 | 0.01% | 2q | +37.7%+$106.2K |
| BNP PARIBAS FINANCIAL MARKETS | $339.1K | 59,701 | 0.00% | 3q | +142045.2%+$338.9K |
| TOCQUEVILLE ASSET MANAGEMENT L.P. | $315.2K | 55,500 | 0.00% | 2q | +65.7%+$125.0K |
| Nuveen, LLC | $296.1K | 52,133 | 0.00% | new | NEW |
| PRICE T ROWE ASSOCIATES INC /MD/ | $292.0K | 51,275 | 0.00% | 3q | +171.3%+$184.4K |
| Stonepine Capital Management, LLC | $276.5K | 48,680 | 0.16% | new | NEW |
| CITADEL ADVISORS LLC | $274.9K incl. $82.9K options PUT | 33,792 | 0.00% | 3q | -56.2%-$352.8K |
| Centiva Capital, LP | $249.8K | 43,975 | 0.00% | 2q | +78.3%+$109.7K |
| RHUMBLINE ADVISERS | $243.0K | 42,790 | 0.00% | new | NEW |
| DEUTSCHE BANK AG\ | $223.0K | 39,260 | 0.00% | 3q | -53.4%-$255.1K |
| WELLS FARGO & COMPANY/MN | $212.5K | 37,413 | 0.00% | 3q | +2527.3%+$204.4K |
| Invesco Ltd. | $209.8K | 36,936 | 0.00% | new | NEW |
| GMT Capital Corp | $207.1K | 36,468 | 0.01% | 3q | HELD |
| DIMENSIONAL FUND ADVISORS LP | $196.7K | 34,637 | 0.00% | 3q | +25.3%+$39.7K |
| Brevan Howard Capital Management LP | $164.2K | 28,911 | 0.00% | 2q | +120.7%+$89.8K |
| Pathstone Holdings, LLC | $142.0K | 25,000 | 0.00% | 3q | HELD |
| Symmetry Partners, LLC | $141.3K | 24,873 | 0.01% | 3q | +2.5%+$3.5K |
| MetLife Investment Management, LLC | $134.3K | 23,638 | 0.00% | new | NEW |
| GROUP ONE TRADING LLC | $127.8K CALL+PUT | options only | 0.00% | 3q | OPTIONS |
| SIMPLEX TRADING, LLC | $116.7K incl. $109.1K options CALL+PUT | 1,350 | 0.00% | 3q | HELD |
| CITIGROUP INC | $106.8K | 18,796 | 0.00% | 3q | +38259.2%+$106.5K |
| JPMORGAN CHASE & CO | $104.4K | 17,572 | 0.00% | new | NEW |
| TWO SIGMA INVESTMENTS, LP | $104.1K | 18,331 | 0.00% | new | NEW |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $103.2K | 18,167 | 0.00% | new | NEW |
| Jefferies Financial Group Inc. | $102.3K | 18,003 | 0.00% | 3q | -33.6%-$51.9K |
| Vanguard Global Advisers, LLC | $88.4K | 15,568 | 0.00% | 2q | HELD |
| Virtu Financial LLC | $82.0K | 14,411 | 0.00% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $79.9K | 12,000 | 0.00% | new | NEW |
| CAPTRUST FINANCIAL ADVISORS | $79.8K | 14,057 | 0.00% | 3q | +0.6% |
| LPL Financial LLC | $71.3K | 12,549 | 0.00% | 2q | -20.7%-$18.6K |
| Cetera Investment Advisers | $67.0K | 11,794 | 0.00% | 2q | -7.1%-$5.1K |
| State of Wyoming | $66.7K | 11,741 | 0.01% | new | NEW |
| Police & Firemen's Retirement System of New Jersey | $66.1K | 11,636 | 0.00% | new | NEW |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $65.1K | 11,460 | 0.00% | new | NEW |
| Squarepoint Ops LLC | $63.4K | 11,156 | 0.00% | 3q | -45.9%-$53.8K |
| TOWNSEND ASSET MANAGEMENT CORP /NC/ /ADV | $62.1K | 10,928 | 0.02% | 3q | HELD |
| NEW YORK STATE COMMON RETIREMENT FUND | $57.4K | 10,100 | 0.00% | new | NEW |
| BARCLAYS PLC | $49.0K | 8,635 | 0.00% | 3q | +1253.4%+$45.4K |
| ROYAL BANK OF CANADA | $32.0K | 5,725 | 0.00% | 3q | +26.0%+$6.6K |
| Legal & General Group Plc | $21.8K | 3,837 | 0.00% | new | NEW |
| Ameritas Investment Partners, Inc. | $20.3K | 3,580 | 0.00% | new | NEW |
| OSAIC HOLDINGS, INC. | $12.4K | 2,192 | 0.00% | 3q | +15.2%+$1.6K |
| Pfizer Inc | $12.4K | 2,171 | 0.01% | 7q | HELD |
| Ameritas Advisory Services, LLC | $10.7K | 1,880 | 0.00% | new | NEW |
| Decker Retirement Planning Inc. | $10.2K | 1,800 | 0.00% | new | NEW |
| Tidemark, LLC | $9.0K | 1,583 | 0.00% | 3q | HELD |
| FMR LLC | $6.2K | 1,094 | 0.00% | 3q | -92.6%-$77.5K |
| TSFG, LLC | $6.0K | 1,125 | 0.00% | 3q | HELD |
| Tower Research Capital LLC (TRC) | $5.3K | 926 | 0.00% | 3q | -80.8%-$22.1K |
| BFC Planning, Inc. | $3.7K | 660 | 0.00% | new | NEW |
| HARBOUR INVESTMENTS, INC. | $3.4K | 605 | 0.00% | 2q | +320.1%+$2.6K |
| Rockefeller Capital Management L.P. | $3.2K | 560 | 0.00% | 3q | +3.7% |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $3.1K | 543 | 0.00% | new | NEW |
| NFSG Corp | $2.2K | 395 | 0.00% | 3q | -57.1%-$3.0K |
| Global Retirement Partners, LLC | $1.9K | 339 | 0.00% | new | NEW |
| Continuum Advisory, LLC | $1.8K | 321 | 0.00% | new | NEW |
| Quarry LP | $1.8K | 321 | 0.00% | new | NEW |
| Cassaday & Co Wealth Management LLC | $1.7K | 300 | 0.00% | 2q | -60.5%-$2.6K |
| COMPASS FINANCIAL MANAGEMENT LLC | $1.2K | 215 | 0.00% | new | FIRST |
| JONES FINANCIAL COMPANIES LLLP | $1.1K | 200 | 0.00% | new | NEW |
| Allworth Financial LP | $1.1K | 196 | 0.00% | 3q | -2.5% |
| PlanVest Financial, Inc | $1.1K | 186 | 0.00% | 2q | HELD |
| Smartleaf Asset Management LLC | $891 | 150 | 0.00% | 3q | HELD |
| Sterling Capital Management LLC | $790 | 139 | 0.00% | new | NEW |
| City State Bank | $784 | 138 | 0.00% | 3q | HELD |
| SUMMIT SECURITIES GROUP LLC | $568 | 100 | 0.00% | new | NEW |
| NewEdge Advisors, LLC | $568 | 100 | 0.00% | 3q | HELD |
| Federation des caisses Desjardins du Quebec | $568 | 100 | 0.00% | 3q | HELD |
| NATIONAL BANK OF CANADA /FI/ | $567 | 100 | 0.00% | 3q | HELD |
| SBI Securities Co., Ltd. | $443 | 78 | 0.00% | 4q | HELD |
| IFP Advisors, Inc | $426 | 75 | 0.00% | 3q | -93.3%-$6.0K |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-10-27 | 13G/A | BlackRock, Inc. | 5.2% |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-12 | ROEDER DOUGLAS A | Director | Bought | 22,686 | $126.1K |
| 2026-08-19 | ROEDER DOUGLAS A | Director | Bought | 13,953 | $125.3K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 18 | $641.1K | 63,041 | 7 | 6 | 0 | 0.0% |
| Q2 2026 | 113 | $121.6M | 20,849,317 | 42 | 32 | 15 | 2.6% |
| Q1 2026 | 91 | $62.8M | 8,775,213 | 21 | 17 | 18 | 7.0% |
| Q4 2025 | 88 | $41.0M | 6,646,624 | 87 | 0 | 4 | 10.6% |
| Q3 2025 | 124 | $55.6M | 126,390,023 | 22 | 29 | 27 | 1.0% |
| Q2 2025 | 140 | $73.2M | 152,178,391 | 22 | 35 | 22 | 1.0% |
| Q1 2025 | 143 | $58.2M | 86,821,413 | 27 | 32 | 26 | 2.1% |
| Q4 2024 | 128 | $42.4M | 80,019,672 | 20 | 27 | 18 | 1.2% |
| Q3 2024 | 130 | $21.1M | 59,349,608 | 8 | 25 | 24 | 1.6% |
| Q2 2024 | 134 | $23.9M | 59,014,383 | 10 | 23 | 27 | 1.5% |
| Q1 2024 | 143 | $36.0M | 66,594,325 | 11 | 24 | 31 | 1.3% |
| Q4 2023 | 147 | $39.9M | 67,214,180 | 8 | 32 | 24 | 2.9% |
| Q3 2023 | 156 | $47.6M | 75,674,606 | 20 | 27 | 42 | 4.1% |
| Q2 2023 | 161 | $64.4M | 81,785,341 | 32 | 24 | 42 | 3.1% |
| Q1 2023 | 175 | $83.4M | 114,623,055 | 8 | 41 | 45 | 2.4% |
| Q4 2022 | 196 | $127.9M | 116,246,975 | 22 | 55 | 48 | 6.3% |
| Q3 2022 | 184 | $300.7M | 218,297,645 | 23 | 55 | 32 | 4.2% |
| Q2 2022 | 187 | $230.7M | 209,199,850 | 18 | 45 | 50 | 6.6% |
| Q1 2022 | 202 | $476.6M | 220,753,273 | 28 | 52 | 52 | 8.9% |
| Q4 2021 | 206 | $822.2M | 287,649,328 | 26 | 64 | 38 | 6.6% |
| Q3 2021 | 190 | $1.0B | 284,777,312 | 23 | 72 | 35 | 5.2% |
| Q2 2021 | 194 | $1.2B | 292,518,979 | 76 | 48 | 30 | 6.6% |
| Q1 2021 | 146 | $378.2M | 125,743,618 | 59 | 40 | 19 | 12.2% |
| Q4 2020 | 109 | $106.5M | 118,676,282 | 26 | 17 | 23 | 2.8% |
| Q3 2020 | 96 | $44.3M | 113,139,333 | 19 | 11 | 23 | 0.9% |
| Q2 2020 | 89 | $26.3M | 66,957,276 | 20 | 14 | 26 | 0.8% |
| Q1 2020 | 95 | $84.9M | 133,666,059 | 15 | 24 | 28 | 0.4% |
| Q4 2019 | 100 | $872.6M | 952,125,361 | 12 | 26 | 26 | 0.0% |
| Q3 2019 | 104 | $888.9M | 898,699,340 | 17 | 39 | 16 | 0.0% |
| Q2 2019 | 111 | $312.1M | 152,367,869 | 13 | 46 | 20 | 0.4% |
| Q1 2019 | 117 | $378.5M | 153,933,041 | 21 | 32 | 26 | 0.4% |
| Q4 2018 | 111 | $400.7M | 154,433,499 | 2 | 2 | 2 | 0.2% |
