Who owns Tandem Diabetes Care Inc?
- Ticker: TNDM
- CUSIP Number: 875372203
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Analyze quarterly positions in Tandem Diabetes Care with up to 7 years of data, all consolidated into one spreadsheet
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Top investors of Tandem Diabetes Care stock
Who bought or sold Tandem Diabetes Care Inc this quarter?
| Fund or Company Name | Shares Held | Valued At | Change in Shares | As Of | Actions |
|---|---|---|---|---|---|
| BlackRock | 11M | $205M | -4% | Mar 2026 |
|
| Vanguard Group | 7.3M | $161M | 4% | Dec 2025 |
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| UBS Group | 7.2M | $139M | 128% | Mar 2026 |
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| Sessa Capital IM | 4.7M | $91M | -5% | Mar 2026 |
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| Vanguard Portfolio Management | 4.0M | $77M | 100% | Mar 2026 |
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| Arrowpoint Asset Management | 3.1M | $60M | 7% | Mar 2026 |
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| Vanguard Capital Management | 3.0M | $58M | 100% | Mar 2026 |
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| Jennifer Ranahan | 2.7M | $52M | 1% | Mar 2026 |
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| State Street Corporation | 2.6M | $58M | -1% | Dec 2025 |
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| Citadel Advisors | 2.3M | $44M | 6% | Mar 2026 |
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| Goldman Sachs Group | 2.2M | $43M | 32% | Mar 2026 |
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| Paradice Investment Management | 2.1M | $46M | -5% | Dec 2025 |
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| Two Sigma Investments | 1.9M | $36M | 55% | Mar 2026 |
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| Geode Capital Management | 1.7M | $32M | 2% | Mar 2026 |
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| Jennison Associates | 1.7M | $32M | -18% | Mar 2026 |
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| Driehaus Capital Management | 1.6M | $35M | 100% | Dec 2025 |
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| Jacobs Levy Equity Management | 1.5M | $29M | -8% | Mar 2026 |
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| Morgan Stanley | 1.4M | $26M | -35% | Mar 2026 |
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| Freestone Grove Partners | 1.3M | $26M | -8% | Mar 2026 |
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| First Light Asset Management | 1.3M | $25M | 21% | Mar 2026 |
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| Baillie Gifford & Co | 1.1M | $21M | -5% | Mar 2026 |
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| Barclays | 918k | $20M | -23% | Dec 2025 |
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| Marshall Wace | 876k | $19M | 100% | Dec 2025 |
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| Ing Investment Management | 804k | $15M | 152% | Mar 2026 |
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| D. E. Shaw & Co | 784k | $15M | -15% | Mar 2026 |
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| Soleus Capital Management | 783k | $15M | 100% | Mar 2026 |
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| Defilade Capital Management | 762k | $15M | 100% | Mar 2026 |
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| Millennium Management | 762k | $15M | 31% | Mar 2026 |
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| Royce & Associates | 697k | $13M | 7% | Mar 2026 |
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| Northern Trust | 692k | $15M | 0% | Dec 2025 |
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| FMR | 673k | $15M | -23% | Dec 2025 |
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| Quantinno Capital Management | 654k | $13M | 124% | Mar 2026 |
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| Charles Schwab Investment Management | 646k | $14M | 16% | Dec 2025 |
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| Point72 Asset Management | 511k | $9.8M | 100% | Mar 2026 |
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| Holocene Advisors | 477k | $9.2M | 2808% | Mar 2026 |
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| Vanguard Fiduciary Trust | 472k | $9.0M | 100% | Mar 2026 |
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| Standard Life Aberdeen | 434k | $8.3M | -21% | Mar 2026 |
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| Frontier Capital Management | 412k | $9.1M | -1% | Dec 2025 |
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| Bank of America Corporation | 373k | $7.2M | 100% | Mar 2026 |
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| Nuveen | 364k | $7.0M | -35% | Mar 2026 |
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| DAFNA Capital Management | 355k | $6.8M | 0% | Mar 2026 |
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| Susquehanna International | 350k | $7.7M | 11% | Dec 2025 |
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| First Trust Advisors | 343k | $6.6M | 100% | Mar 2026 |
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| Bank of New York Mellon | 336k | $6.4M | -4% | Mar 2026 |
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| AQR Capital Management | 332k | $6.4M | -2% | Mar 2026 |
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| Principal Financial Group | 332k | $6.4M | 2% | Mar 2026 |
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| Invesco | 294k | $5.6M | 6% | Mar 2026 |
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| Acadian Asset Management | 278k | $5.3M | -29% | Mar 2026 |
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| Sector Gamma ASA | 267k | $5.1M | 0% | Mar 2026 |
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| Edmond De Rothschild Holding | 258k | $4.9M | 0% | Mar 2026 |
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| Trexquant Investment | 249k | $4.8M | 143% | Mar 2026 |
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| Envestnet Asset Management | 243k | $4.7M | 10% | Mar 2026 |
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| Public Sector Pension Investment Board | 243k | $4.7M | 3% | Mar 2026 |
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| Bnp Paribas Arbitrage, Snc | 209k | $4.0M | -83% | Mar 2026 |
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| Royal Bank of Canada | 206k | $3.9M | -70% | Mar 2026 |
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| Rhumbline Advisers | 186k | $3.6M | 1% | Mar 2026 |
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| Adage Capital Partners GP | 183k | $4.0M | 100% | Dec 2025 |
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| Assenagon Asset Management | 179k | $3.4M | -85% | Mar 2026 |
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| Ubs Global Asset Management Americas | 169k | $3.2M | 2% | Mar 2026 |
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| AH Lisanti Capital Growth | 165k | $3.2M | -37% | Mar 2026 |
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| PanAgora Asset Management | 164k | $3.1M | 12% | Mar 2026 |
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| Mizuho Markets Americas | 157k | $3.0M | 9% | Mar 2026 |
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| Legal & General Group | 155k | $3.0M | -10% | Mar 2026 |
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| Toronto-Dominion Bank | 150k | $2.5M | 100% | Mar 2026 |
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| Arrowstreet Capital, Limited Partnership | 136k | $3.0M | 100% | Dec 2025 |
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| Russell Investments | 134k | $2.6M | 4% | Mar 2026 |
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| Swiss National Bank | 133k | $2.6M | 0% | Mar 2026 |
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| Banque Pictet & Cie Sa | 124k | $2.4M | 28% | Mar 2026 |
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| Federated Investors | 124k | $2.4M | 495176% | Mar 2026 |
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| Ameriprise Financial | 121k | $2.3M | -6% | Mar 2026 |
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| Raymond James Financial | 120k | $2.6M | -12% | Dec 2025 |
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| Canada Pension Plan Investment Board | 118k | $2.3M | -33% | Mar 2026 |
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| Algert Coldiron Investors | 118k | $2.3M | 8% | Mar 2026 |
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| Intech Investment Management | 111k | $2.1M | 307% | Mar 2026 |
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| Jane Street | 106k | $2.0M | -63% | Mar 2026 |
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| Wellington Management Company | 98k | $2.2M | 100% | Dec 2025 |
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| Sei Investments | 95k | $1.8M | -11% | Mar 2026 |
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| Zurcher Kantonalbank | 94k | $1.8M | 27% | Mar 2026 |
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| PDT Partners | 94k | $1.8M | -15% | Mar 2026 |
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| Engineers Gate Manager | 89k | $1.9M | 100% | Dec 2025 |
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| Universal- Beteiligungs- und Servicegesellschaft mbH | 87k | $1.7M | -2% | Mar 2026 |
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| California State Teachers Retirement System | 84k | $1.6M | 31% | Mar 2026 |
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| Nierenberg Investment Management Company | 80k | $1.5M | 78% | Mar 2026 |
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| Tudor Investment Corporation | 79k | $1.5M | -39% | Mar 2026 |
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| Y-Intercept | 78k | $1.5M | -7% | Mar 2026 |
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| HPM Partners | 76k | $1.5M | -1% | Mar 2026 |
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| Alliancebernstein | 73k | $1.6M | -69% | Mar 2026 |
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| Rice Hall James & Associates | 73k | $1.4M | 17% | Mar 2026 |
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| Formula Growth | 71k | $1.6M | -42% | Dec 2025 |
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| Prudential Financial | 69k | $1.3M | 7% | Mar 2026 |
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| Citigroup | 68k | $1.3M | 100% | Mar 2026 |
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| Susquehanna Portfolio Strategies | 67k | $1.5M | -68% | Dec 2025 |
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| New York State Teachers Retirement System | 66k | $1.3M | -3% | Mar 2026 |
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| Natixis Asset Management Advisors | 61k | $1.2M | 7% | Mar 2026 |
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| Deutsche Bank Aktiengesellschaft | 61k | $1.2M | 12% | Mar 2026 |
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| Vanguard Asset Management | 58k | $1.1M | 100% | Mar 2026 |
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| Leucadia National Corporation | 57k | $1.1M | 100% | Mar 2026 |
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| Great-West Life Assurance Company | 56k | $1.2M | 0% | Dec 2025 |
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| Mirae Asset Global Etfs Holdings | 55k | $1.1M | -10% | Mar 2026 |
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| Twinbeech Capital | 51k | $985k | 100% | Mar 2026 |
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| Legato Capital Management | 50k | $960k | -31% | Mar 2026 |
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| Thrivent Financial for Lutherans | 45k | $868k | -3% | Mar 2026 |
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| State of Wisconsin Investment Board | 43k | $947k | -33% | Dec 2025 |
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| CLS Investments | 42k | $803k | 3% | Mar 2026 |
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| Jump Financial | 41k | $910k | -65% | Dec 2025 |
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| Oppenheimer Asset Management | 41k | $782k | 8% | Mar 2026 |
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| MetLife Investment Advisors | 39k | $859k | 0% | Dec 2025 |
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| Brevan Howard Capital Management | 38k | $735k | 12% | Mar 2026 |
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| Summit Trail Advisors | 38k | $724k | 9% | Mar 2026 |
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| Alaska Retirement Management Board | 38k | $720k | -3% | Mar 2026 |
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| Bank Of Montreal | 37k | $718k | 100% | Mar 2026 |
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| HighMark Wealth Management | 34k | $654k | -3% | Mar 2026 |
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| CI Private Wealth | 34k | $637k | 73% | Mar 2026 |
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| SG Americas Securities | 33k | $633k | -47% | Mar 2026 |
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| Mariner Wealth Advisors | 33k | $633k | -7% | Mar 2026 |
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| American Century Companies | 33k | $720k | 0% | Dec 2025 |
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| Wells Fargo & Company | 32k | $604k | -63% | Mar 2026 |
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| Branch Banking & Trust Company | 31k | $587k | 9% | Mar 2026 |
|
| Louisiana State Employees Retirement System | 30k | $577k | -3% | Mar 2026 |
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| Henderson Group | 30k | $571k | 0% | Mar 2026 |
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| LPL Financial | 30k | $565k | -26% | Mar 2026 |
|
| Manufacturers Life Insurance Company | 29k | $551k | -3% | Mar 2026 |
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| Dynamic Technology Lab Private | 28k | $535k | 100% | Mar 2026 |
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| Ieq Capital | 27k | $597k | 100% | Dec 2025 |
|
| CWM Advisors | 27k | $518k | 28% | Mar 2026 |
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| Vanguard Global Advisers | 27k | $517k | 100% | Mar 2026 |
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| Stifel Financial | 27k | $516k | -2% | Mar 2026 |
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| Varcov | 27k | $509k | 100% | Mar 2026 |
|
| Virginia Retirement System | 25k | $543k | -33% | Dec 2025 |
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| CWM | 24k | $537k | 11% | Dec 2025 |
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| Advisors Asset Management | 23k | $447k | -2% | Mar 2026 |
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| Fifth Third Bancorp | 23k | $433k | 2076% | Mar 2026 |
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| GSA Capital Partners | 23k | $432k | -28% | Mar 2026 |
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| Brian McDonald | 21k | $471k | -16% | Dec 2025 |
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| Diversified Trust Company | 21k | $409k | 9% | Mar 2026 |
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| Pnc Financial Services | 21k | $399k | -7% | Mar 2026 |
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| Mercer Global Advisors | 20k | $388k | 79% | Mar 2026 |
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| New York State Common Retirement Fund | 20k | $382k | 0% | Mar 2026 |
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| Amalgamated Bank | 20k | $374k | -1% | Mar 2026 |
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| Arizona State Retirement System | 19k | $357k | -1% | Mar 2026 |
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| Florida State Board of Administration | 19k | $356k | 0% | Mar 2026 |
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| Police & Firemen's Retirement System of New Jersey | 19k | $355k | 0% | Mar 2026 |
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| Yousif Capital Management | 19k | $354k | -2% | Mar 2026 |
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| State of Wyoming | 18k | $344k | -44% | Mar 2026 |
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| Franklin Resources | 18k | $343k | -36% | Mar 2026 |
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| Allianz Asset Management | 17k | $324k | 100% | Mar 2026 |
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| Vanguard Investments Australia | 17k | $324k | 100% | Mar 2026 |
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| Teachers Retirement System Of The State Of Kentucky | 17k | $323k | 0% | Mar 2026 |
|
| Commonwealth of Pennsylvania | 17k | $321k | 0% | Mar 2026 |
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| Commerce Bank N A | 16k | $313k | -2% | Mar 2026 |
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| Neuberger Berman Group | 16k | $351k | 6% | Dec 2025 |
|
| State of Tennessee, Treasury Department | 15k | $281k | -32% | Mar 2026 |
|
| Walleye Trading | 14k | $276k | -68% | Mar 2026 |
|
| Counterpoint Mutual Funds | 13k | $243k | -45% | Mar 2026 |
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| Amundi | 13k | $242k | -57% | Mar 2026 |
|
| Verition Fund Management | 11k | $233k | -54% | Dec 2025 |
|
| Bayforest Capital | 7.3k | $139k | -73% | Mar 2026 |
|
| Quantbot Technologies | 2.3k | $44k | -93% | Mar 2026 |
|
| OP Asset Management | 1.8k | $35k | -89% | Mar 2026 |
|
| Group One Trading | 1.8k | $35k | -97% | Mar 2026 |
|
Who sold out of Tandem Diabetes Care?
| Fund or Company Name | Date Sold | Shares Held | Valued At |
|---|---|---|---|
| Hood River Capital Management | Sep 2025 | 2.6M | $31M |
| Two Sigma Advisers | Dec 2025 | 938k | $21M |
| Brown Capital Management | Sep 2025 | 363k | $4.4M |
| Jpmorgan Chase & Co | Sep 2025 | 359k | $4.4M |
| Balyasny Asset Management | Dec 2025 | 263k | $5.8M |
| Hrt Financial | Dec 2025 | 171k | $3.7M |
| Renaissance Technologies | Sep 2025 | 162k | $2.0M |
| XTX Topco | Sep 2025 | 74k | $893k |
| Norges Bank Investment Management | Dec 2025 | 54k | $1.2M |
| Walleye Trading Advisors | Dec 2025 | 48k | $1.1M |
| Winton Capital | Dec 2025 | 44k | $973k |
| Capital Fund Management | Dec 2025 | 38k | $844k |
| Hsbc Holdings | Dec 2025 | 37k | $811k |
| Quest Partners | Dec 2025 | 36k | $783k |
| Deerfield Management Company | Dec 2025 | 26k | $574k |
| PharVision Advisers | Dec 2025 | 20k | $430k |
| Springbok Capital Management | Sep 2025 | 19k | $228k |
| Wealth Enhancement Advisory Services | Dec 2025 | 19k | $440k |