Who owns Tandem Diabetes Care Inc?
- Ticker: TNDM
- CUSIP Number: 875372203
Tip: Access positions for across all investors
Analyze quarterly positions in Tandem Diabetes Care with up to 7 years of data, all consolidated into one spreadsheet
Download as csv
Download as Excel
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 | $245M | -8% | Dec 2025 |
|
| Vanguard Group | 7.3M | $161M | 4% | Dec 2025 |
|
| Sessa Capital IM | 5.0M | $110M | 0% | Dec 2025 |
|
| UBS Group | 3.2M | $70M | -26% | Dec 2025 |
|
| Arrowpoint Asset Management | 2.9M | $64M | -22% | Dec 2025 |
|
| Jennifer Ranahan | 2.7M | $59M | -2% | Dec 2025 |
|
| State Street Corporation | 2.6M | $58M | -1% | Dec 2025 |
|
| Citadel Advisors | 2.2M | $47M | 1452% | Dec 2025 |
|
| Paradice Investment Management | 2.1M | $46M | -5% | Dec 2025 |
|
| Jennison Associates | 2.0M | $44M | 42% | Dec 2025 |
|
| Goldman Sachs Group | 1.7M | $37M | 18% | Dec 2025 |
|
| Jacobs Levy Equity Management | 1.7M | $36M | 12% | Dec 2025 |
|
| Geode Capital Management | 1.6M | $36M | 3% | Dec 2025 |
|
| Driehaus Capital Management | 1.6M | $35M | 100% | Dec 2025 |
|
| Freestone Grove Partners | 1.4M | $32M | -23% | Dec 2025 |
|
| Bnp Paribas Arbitrage, Snc | 1.2M | $27M | 468% | Dec 2025 |
|
| Two Sigma Investments | 1.2M | $26M | 8% | Dec 2025 |
|
| Baillie Gifford & Co | 1.1M | $25M | 2% | Dec 2025 |
|
| First Light Asset Management | 1.1M | $24M | 100% | Dec 2025 |
|
| Two Sigma Advisers | 938k | $21M | -3% | Dec 2025 |
|
| D. E. Shaw & Co | 924k | $20M | -2% | Dec 2025 |
|
| Barclays | 918k | $20M | -23% | Dec 2025 |
|
| Marshall Wace | 876k | $19M | 100% | Dec 2025 |
|
| Northern Trust | 692k | $15M | 0% | Dec 2025 |
|
| FMR | 673k | $15M | -23% | Dec 2025 |
|
| Royce & Associates | 650k | $14M | 28% | Dec 2025 |
|
| Charles Schwab Investment Management | 646k | $14M | 16% | Dec 2025 |
|
| Millennium Management | 584k | $13M | -17% | Dec 2025 |
|
| Nuveen | 563k | $12M | 12% | Dec 2025 |
|
| Standard Life Aberdeen | 547k | $12M | -9% | Dec 2025 |
|
| Frontier Capital Management | 412k | $9.1M | -1% | Dec 2025 |
|
| Acadian Asset Management | 393k | $8.6M | -57% | Dec 2025 |
|
| DAFNA Capital Management | 355k | $7.8M | 0% | Dec 2025 |
|
| Susquehanna International | 350k | $7.7M | 11% | Dec 2025 |
|
| Bank of New York Mellon | 350k | $7.7M | -9% | Dec 2025 |
|
| AQR Capital Management | 340k | $7.5M | -18% | Dec 2025 |
|
| Principal Financial Group | 324k | $7.1M | -1% | Dec 2025 |
|
| Ing Investment Management | 320k | $7.0M | 83% | Dec 2025 |
|
| Quantinno Capital Management | 293k | $6.4M | 46% | Dec 2025 |
|
| Jane Street | 287k | $6.3M | 10% | Dec 2025 |
|
| Invesco | 278k | $6.1M | -8% | Dec 2025 |
|
| Sector Gamma ASA | 267k | $5.9M | -1% | Dec 2025 |
|
| AH Lisanti Capital Growth | 263k | $5.8M | 100% | Dec 2025 |
|
| Balyasny Asset Management | 263k | $5.8M | 100% | Dec 2025 |
|
| Edmond De Rothschild Holding | 258k | $5.7M | -23% | Dec 2025 |
|
| Public Sector Pension Investment Board | 235k | $5.2M | -11% | Dec 2025 |
|
| Alliancebernstein | 234k | $5.1M | 5% | Dec 2025 |
|
| Envestnet Asset Management | 222k | $4.9M | -6% | Dec 2025 |
|
| Rhumbline Advisers | 184k | $4.0M | -3% | Dec 2025 |
|
| Adage Capital Partners GP | 183k | $4.0M | 100% | Dec 2025 |
|
| Assenagon Asset Management | 179k | $3.4M | -85% | Mar 2026 |
|
| Canada Pension Plan Investment Board | 178k | $3.9M | 0% | Dec 2025 |
|
| Legal & General Group | 172k | $3.8M | -6% | Dec 2025 |
|
| Hrt Financial | 171k | $3.7M | 92% | Dec 2025 |
|
| Ubs Global Asset Management Americas | 165k | $3.6M | -11% | Dec 2025 |
|
| PanAgora Asset Management | 146k | $3.2M | -25% | Dec 2025 |
|
| Mizuho Markets Americas | 145k | $3.2M | 23% | Dec 2025 |
|
| Arrowstreet Capital, Limited Partnership | 136k | $3.0M | 100% | Dec 2025 |
|
| Swiss National Bank | 133k | $2.9M | 3% | Dec 2025 |
|
| Tudor Investment Corporation | 129k | $2.8M | 367% | Dec 2025 |
|
| Ameriprise Financial | 129k | $2.8M | -24% | Dec 2025 |
|
| Russell Investments | 129k | $2.8M | -7% | Dec 2025 |
|
| Banque Pictet & Cie Sa | 124k | $2.4M | 28% | Mar 2026 |
|
| Raymond James Financial | 120k | $2.6M | -12% | Dec 2025 |
|
| PDT Partners | 110k | $2.4M | -35% | Dec 2025 |
|
| Algert Coldiron Investors | 109k | $2.4M | -52% | Dec 2025 |
|
| Sei Investments | 107k | $2.3M | -51% | Dec 2025 |
|
| Trexquant Investment | 103k | $2.3M | -79% | Dec 2025 |
|
| Wellington Management Company | 98k | $2.2M | 100% | Dec 2025 |
|
| Universal- Beteiligungs- und Servicegesellschaft mbH | 89k | $2.0M | -9% | Dec 2025 |
|
| Engineers Gate Manager | 89k | $1.9M | 100% | Dec 2025 |
|
| Wells Fargo & Company | 84k | $1.9M | 62% | Dec 2025 |
|
| Y-Intercept | 84k | $1.8M | 48% | Dec 2025 |
|
| HPM Partners | 77k | $1.7M | 1% | Dec 2025 |
|
| Zurcher Kantonalbank | 74k | $1.6M | 245% | Dec 2025 |
|
| Legato Capital Management | 73k | $1.6M | 100% | Dec 2025 |
|
| Formula Growth | 71k | $1.6M | -42% | Dec 2025 |
|
| New York State Teachers Retirement System | 68k | $1.5M | 0% | Dec 2025 |
|
| Susquehanna Portfolio Strategies | 67k | $1.5M | -68% | Dec 2025 |
|
| Prudential Financial | 65k | $1.4M | -6% | Dec 2025 |
|
| California State Teachers Retirement System | 64k | $1.4M | 6% | Dec 2025 |
|
| Rice Hall James & Associates | 62k | $1.4M | -39% | Dec 2025 |
|
| Mirae Asset Global Etfs Holdings | 61k | $1.4M | -2% | Dec 2025 |
|
| Group One Trading | 61k | $1.3M | -28% | Dec 2025 |
|
| Natixis Asset Management Advisors | 57k | $1.3M | 1% | Dec 2025 |
|
| Great-West Life Assurance Company | 56k | $1.2M | 0% | Dec 2025 |
|
| Norges Bank Investment Management | 54k | $1.2M | 100% | Dec 2025 |
|
| Deutsche Bank Aktiengesellschaft | 54k | $1.2M | -1% | Dec 2025 |
|
| Walleye Trading Advisors | 48k | $1.1M | -92% | Dec 2025 |
|
| Thrivent Financial for Lutherans | 47k | $1.0M | -4% | Dec 2025 |
|
| Walleye Trading | 45k | $995k | 2% | Dec 2025 |
|
| Nierenberg Investment Management Company | 45k | $979k | 100% | Dec 2025 |
|
| Winton Capital | 44k | $973k | 100% | Dec 2025 |
|
| State of Wisconsin Investment Board | 43k | $947k | -33% | Dec 2025 |
|
| Jump Financial | 41k | $910k | -65% | Dec 2025 |
|
| Oppenheimer Asset Management | 41k | $782k | 8% | Mar 2026 |
|
| CLS Investments | 41k | $892k | -8% | Dec 2025 |
|
| LPL Financial | 40k | $870k | 2% | Dec 2025 |
|
| MetLife Investment Advisors | 39k | $859k | 0% | Dec 2025 |
|
| Capital Fund Management | 38k | $844k | -78% | Dec 2025 |
|
| Alaska Retirement Management Board | 38k | $720k | -3% | Mar 2026 |
|
| Hsbc Holdings | 37k | $811k | -61% | Dec 2025 |
|
| Quest Partners | 36k | $783k | 56% | Dec 2025 |
|
| Mariner Wealth Advisors | 36k | $781k | 43% | Dec 2025 |
|
| HighMark Wealth Management | 35k | $772k | 49% | Dec 2025 |
|
| Summit Trail Advisors | 35k | $759k | -66% | Dec 2025 |
|
| Brevan Howard Capital Management | 34k | $749k | -73% | Dec 2025 |
|
| SG Americas Securities | 33k | $633k | -47% | Mar 2026 |
|
| Quantbot Technologies | 33k | $724k | -2% | Dec 2025 |
|
| American Century Companies | 33k | $720k | 0% | Dec 2025 |
|
| State of Wyoming | 32k | $699k | 111% | Dec 2025 |
|
| GSA Capital Partners | 31k | $685k | -68% | Dec 2025 |
|
| Louisiana State Employees Retirement System | 30k | $577k | -3% | Mar 2026 |
|
| Manufacturers Life Insurance Company | 30k | $653k | -6% | Dec 2025 |
|
| Amundi | 29k | $647k | 167% | Dec 2025 |
|
| Branch Banking & Trust Company | 28k | $619k | -76% | Dec 2025 |
|
| Franklin Resources | 28k | $614k | -32% | Dec 2025 |
|
| Stifel Financial | 28k | $604k | -30% | Dec 2025 |
|
| Intech Investment Management | 27k | $602k | -63% | Dec 2025 |
|
| Ieq Capital | 27k | $597k | 100% | Dec 2025 |
|
| CWM Advisors | 27k | $518k | 28% | Mar 2026 |
|
| Deerfield Management Company | 26k | $574k | 114% | Dec 2025 |
|
| Virginia Retirement System | 25k | $543k | -33% | Dec 2025 |
|
| CWM | 24k | $537k | 11% | Dec 2025 |
|
| Advisors Asset Management | 24k | $523k | -2% | Dec 2025 |
|
| Counterpoint Mutual Funds | 23k | $502k | -46% | Dec 2025 |
|
| Pnc Financial Services | 22k | $491k | 6% | Dec 2025 |
|
| State of Tennessee, Treasury Department | 22k | $428k | -33% | Dec 2025 |
|
| Brian McDonald | 21k | $471k | -16% | Dec 2025 |
|
| Diversified Trust Company | 21k | $409k | 9% | Mar 2026 |
|
| New York State Common Retirement Fund | 20k | $439k | 0% | Dec 2025 |
|
| Amalgamated Bank | 20k | $432k | 0% | Dec 2025 |
|
| CI Private Wealth | 16k | $307k | 100% | Dec 2025 |
|
| Arizona State Retirement System | 19k | $415k | -4% | Dec 2025 |
|
| Florida State Board of Administration | 19k | $408k | 0% | Dec 2025 |
|
| Police & Firemen's Retirement System of New Jersey | 19k | $407k | 0% | Dec 2025 |
|
| Yousif Capital Management | 19k | $354k | -2% | Mar 2026 |
|
| Teachers Retirement System Of The State Of Kentucky | 17k | $371k | -11% | Dec 2025 |
|
| Commonwealth of Pennsylvania | 17k | $369k | -2% | Dec 2025 |
|
| Commerce Bank N A | 17k | $366k | -1% | Dec 2025 |
|
| Holocene Advisors | 16k | $361k | 100% | Dec 2025 |
|
| Neuberger Berman Group | 16k | $351k | 6% | Dec 2025 |
|
| Oregon Public Employees Retirement Fund | 16k | $341k | 2% | Dec 2025 |
|
| Greenwood Capital Associates | 15k | $337k | 100% | Dec 2025 |
|
| Caprock | 15k | $326k | -67% | Dec 2025 |
|
| Schonfeld Strategic Advisors | 15k | $321k | -90% | Dec 2025 |
|
| Klp Kapitalforvaltning As | 15k | $319k | 7% | Dec 2025 |
|
| 180 Wealth Advisors | 13k | $296k | 29% | Dec 2025 |
|
| Cetera Investment Advisers | 11k | $240k | -21% | Dec 2025 |
|
| Verition Fund Management | 11k | $233k | -54% | Dec 2025 |
|
| Bayforest Capital | 7.3k | $139k | -73% | Mar 2026 |
|
| Ensign Peak Advisors | 5.0k | $111k | -71% | Dec 2025 |
|
| OP Asset Management | 1.8k | $35k | -89% | 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 |
| Connor, Clark & Lunn Investment Management | Sep 2025 | 615k | $7.5M |
| Brown Capital Management | Sep 2025 | 363k | $4.4M |
| Moore Capital Management | Sep 2025 | 221k | $2.7M |
| Divisadero Street Capital Management | Sep 2025 | 175k | $2.1M |
| Renaissance Technologies | Sep 2025 | 162k | $2.0M |
| Dark Forest Capital Management | Sep 2025 | 76k | $917k |
| XTX Topco | Sep 2025 | 74k | $893k |
| First Trust Advisors | Sep 2025 | 41k | $495k |
| Arp Americas | Sep 2025 | 26k | $318k |
| Handelsbanken Fonder AB | Sep 2025 | 22k | $267k |
| PharVision Advisers | Dec 2025 | 20k | $430k |
| Springbok Capital Management | Sep 2025 | 19k | $228k |
| Wealth Enhancement Advisory Services | Dec 2025 | 19k | $440k |
| Keebeck Alpha | Sep 2025 | 17k | $202k |
| MN Wealth Advisors | Dec 2025 | 14k | $303k |
| Atom Investors | Sep 2025 | 14k | $164k |