Tandem Diabetes Care Inc
TNDM- Exchange
- Nasdaq
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001438133
No open-market purchases or sales by Tandem Diabetes Care Inc insiders were filed in the last 90 days; 274 institutions reported holding it in 13F filings for Q2 2026, worth $1.19B in total; no superinvestor holds it.
13F holders, Q2 2021
Institutional positions in Tandem Diabetes Care Inc as of Jun 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 303
- +15 vs. Q1 2021
- Shares held
- 59.0M
- +2.42M (+4.3%) vs. Q1 2021
- Total value
- $5.75B
- +$753.7M (+15.1%) vs. Q1 2021
- New holders
- 56
- 109 more added
- Sold out
- 41
- 94 more reduced
2 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TNDM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 274 | $1.19B |
| Q1 2026 | 274 | $1.51B |
| Q4 2025 | 269 | $1.65B |
| Q3 2025 | 255 | $911.3M |
| Q2 2025 | 271 | $1.51B |
| Q1 2025 | 275 | $1.40B |
| Q4 2024 | 316 | $2.60B |
| Q3 2024 | 332 | $3.10B |
| Q2 2024 | 317 | $2.96B |
| Q1 2024 | 291 | $2.63B |
| Q4 2023 | 268 | $2.10B |
| Q3 2023 | 226 | $1.45B |
| Q2 2023 | 247 | $1.65B |
| Q1 2023 | 274 | $2.77B |
| Q4 2022 | 295 | $2.89B |
| Q3 2022 | 299 | $3.00B |
| Q2 2022 | 331 | $3.64B |
| Q1 2022 | 379 | $6.92B |
| Q4 2021 | 388 | $9.09B |
| Q3 2021 | 338 | $7.32B |
| Q2 2021 | 303 | $5.75B |
| Q1 2021 | 290 | $5.08B |
Institutions, Q2 2021
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 5,994,645 | $583.9M | 0.05% | −125,531−2.1% | Reduced |
| Vanguard Group Inc | 5,604,505 | $545.9M | 0.01% | +144,143+2.6% | Added |
| Jackson Square Partners, LLC | 3,623,094 | $352.9M | 2.02% | −82,718−2.2% | Reduced |
| BlackRock Inc. | 3,522,962 | $343.1M | 0.01% | +33,741+1.0% | Added |
| Capital World Investors | 3,276,704 | $319.2M | 0.05% | +188,425+6.1% | Added |
| Credit Suisse AG | 1,682,377 | $163.9M | 0.13% | −345,220−17.0% | Reduced |
| Invesco Ltd. | 1,603,154 | $156.1M | 0.04% | −167,697−9.5% | Reduced |
| Champlain Investment Partners, LLC | 1,546,570 | $150.6M | 0.72% | +204,410+15.2% | Added |
| Federated Hermes, Inc. | 1,273,828 | $124.1M | 0.23% | +280.0% | Added |
| Brown Capital Management LLC | 1,226,116 | $119.4M | 0.91% | −3,186−0.3% | Reduced |
| State Street Corp | 1,190,140 | $115.9M | 0.01% | +346,024+41.0% | Added |
| RTW Investments, LP | 1,147,408 | $111.8M | 1.69% | +8,178+0.7% | Added |
| Bellevue Group AG | 1,020,368 | $99.4M | 0.97% | +493,234+93.6% | Added |
| Delphi Management Partners VIII, L.L.C. | 1,000,000 | $97.4M | 76.91% | 00.0% | Unchanged |
| Consonance Capital Management LP | 979,226 | $95.4M | 11.48% | +979,226 | New |
| Macquarie Group Ltd | 943,533 | $91.9M | 0.08% | +887,777+1,592.3% | Added |
| Janus Henderson Group PLC | 831,162 | $81.0M | 0.03% | +831,162 | New |
| Gilder Gagnon Howe & Co LLC | 790,567 | $77.0M | 0.38% | +9,108+1.2% | Added |
| Geode Capital Management, LLC | 790,005 | $76.9M | 0.01% | +12,672+1.6% | Added |
| Price T Rowe Associates Inc | 781,343 | $76.1M | 0.01% | −312,972−28.6% | Reduced |
| Stephens Investment Management Group LLC | 778,922 | $75.9M | 1.04% | +107,600+16.0% | Added |
| SEI Investments Co | 717,441 | $69.9M | 0.15% | +32,064+4.7% | Added |
| Point72 Asset Management, L.P. | 678,327 | $66.1M | 0.33% | +308,027+83.2% | Added |
| Goldman Sachs Group Inc | 614,756 | $59.9M | 0.02% | +79,129+14.8% | Added |
| TimesSquare Capital Management, LLC | 598,200 | $58.3M | 0.48% | −8,600−1.4% | Reduced |
| Norges Bank | 586,150 | $57.1M | 0.01% | +28,089+5.0% | Added |
| Wellington Management Group LLP | 561,077 | $54.6M | 0.01% | +13,138+2.4% | Added |
| Jennison Associates LLC | 532,969 | $51.9M | 0.03% | +16,035+3.1% | Added |
| First Light Asset Management, LLC | 528,606 | $51.5M | 3.09% | +3,477+0.7% | Added |
| Eaton Vance Management | 527,583 | $51.4M | 0.07% | +70,583+15.4% | Added |
| Amundi | 477,514 | $46.5M | 0.03% | +477,514 | New |
| Charles Schwab Investment Management Inc | 464,090 | $45.2M | 0.02% | +11,009+2.4% | Added |
| Voya Investment Management LLC | 462,659 | $45.1M | 0.09% | −725,287−61.1% | Reduced |
| Chicago Capital, LLC | 457,461 | $44.6M | 1.74% | −1,432−0.3% | Reduced |
| Assenagon Asset Management S.A. | 399,752 | $38.9M | 0.17% | +195,481+95.7% | Added |
| Nuveen Asset Management, LLC | 397,958 | $38.8M | 0.01% | +41,306+11.6% | Added |
| Citadel Advisors LLC | 397,384 | $38.7M | 0.04% | −253,100−38.9% | Reduced |
| Westfield Capital Management Co LP | 395,981 | $38.6M | 0.23% | −20,468−4.9% | Reduced |
| Wasatch Advisors Inc | 365,783 | $35.6M | 0.14% | +814+0.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 360,020 | $35.1M | 0.10% | +69,817+24.1% | Added |
| American Century Companies Inc | 354,045 | $34.5M | 0.02% | −67,710−16.1% | Reduced |
| Baillie Gifford & Co | 346,925 | $33.8M | 0.02% | +1680.0% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 309,447 | $30.1M | 1.53% | +81,116+35.5% | Added |
| Millennium Management LLC | 302,412 | $29.5M | 0.04% | +275,522+1,024.6% | Added |
| Northern Trust Corp | 292,839 | $28.5M | 0.01% | −8,481−2.8% | Reduced |
| Morgan Stanley | 282,827 | $27.5M | 0.00% | −86,759−23.5% | Reduced |
| Man Group plc | 280,567 | $27.3M | 0.10% | +207,352+283.2% | Added |
| UBS Group AG | 272,626 | $26.6M | 0.01% | −96,928−26.2% | Reduced |
| New York State Common Retirement Fund | 250,985 | $24.4M | 0.03% | −2,500−1.0% | Reduced |
| Bank of New York Mellon Corp | 242,857 | $23.7M | 0.00% | −20,332−7.7% | Reduced |
| AXA S.A. | 223,387 | $21.8M | 0.06% | +38,815+21.0% | Added |
| Pictet Asset Management Ltd | 209,652 | $20.4M | 0.02% | −8,373−3.8% | Reduced |
| Intrinsic Edge Capital Management LLC | 201,535 | $19.6M | 1.17% | +19,135+10.5% | Added |
| Nomura Holdings Inc | 190,189 | $18.5M | 0.15% | +2,171+1.2% | Added |
| Wells Fargo & Company | 174,958 | $17.0M | 0.00% | −57,829−24.8% | Reduced |
| Fred Alger Management, LLC | 172,892 | $16.8M | 0.04% | −2,092−1.2% | Reduced |
| Bank of Nova Scotia | 170,000 | $16.6M | 0.03% | +170,000 | New |
| Two Sigma Investments, LP | 166,041 | $16.2M | 0.04% | −228,595−57.9% | Reduced |
| Nicholas Company, Inc. | 154,028 | $15.0M | 0.26% | +59,840+63.5% | Added |
| Allianz Asset Management GmbH | 144,010 | $14.0M | 0.01% | −606−0.4% | Reduced |
| Swiss National Bank | 137,800 | $13.4M | 0.01% | +2,900+2.1% | Added |
| Dimensional Fund Advisors LP | 137,261 | $13.4M | 0.00% | +64,813+89.5% | Added |
| Victory Capital Management Inc | 135,258 | $13.2M | 0.01% | −15,129−10.1% | Reduced |
| Redwood Investments, LLC | 127,311 | $12.4M | 1.00% | +25,397+24.9% | Added |
| British Columbia Investment Management Corp | 125,920 | $12.3M | 0.08% | 00.0% | Unchanged |
| Deutsche Bank AG | 124,671 | $12.1M | 0.01% | −39,827−24.2% | Reduced |
| Osterweis Capital Management Inc | 124,185 | $12.1M | 0.62% | +23,005+22.7% | Added |
| California Public Employees Retirement System | 124,042 | $12.1M | 0.01% | −11,621−8.6% | Reduced |
| JPMorgan Chase & Co | 122,728 | $12.0M | 0.00% | +45,089+58.1% | Added |
| Barclays PLC | 120,277 | $11.7M | 0.01% | −11,344−8.6% | Reduced |
| California State Teachers Retirement System | 106,069 | $10.3M | 0.01% | −1,969−1.8% | Reduced |
| Bank of America Corp | 105,771 | $10.3M | 0.00% | +14,572+16.0% | Added |
| WCM Investment Management, LLC | 102,626 | $10.0M | 0.03% | +32,475+46.3% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 96,073 | $9.36M | 0.06% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 93,192 | $9.08M | 0.00% | +7,510+8.8% | Added |
| Silvercrest Asset Management Group LLC | 91,483 | $8.91M | 0.06% | −205−0.2% | Reduced |
| Citigroup Inc | 88,544 | $8.62M | 0.01% | −28,198−24.2% | Reduced |
| Ameriprise Financial Inc | 84,084 | $8.17M | 0.00% | −162,385−65.9% | Reduced |
| Cinctive Capital Management LP | 82,131 | $8.00M | 0.44% | +36,988+81.9% | Added |
| Next Century Growth Investors LLC | 79,857 | $7.78M | 0.61% | −10,863−12.0% | Reduced |
| Royce & Associates LP | 78,286 | $7.63M | 0.05% | +9,900+14.5% | Added |
| Cubist Systematic Strategies, LLC | 75,438 | $7.35M | 0.08% | +16,588+28.2% | Added |
| State Board of Administration of Florida Retirement System | 75,394 | $7.34M | 0.01% | +966+1.3% | Added |
| Candriam Luxembourg S.C.A. | 73,587 | $7.17M | 0.05% | +21,217+40.5% | Added |
| ExodusPoint Capital Management, LP | 70,112 | $6.83M | 0.11% | +10,745+18.1% | Added |
| Frontier Capital Management Co LLC | 69,555 | $6.78M | 0.05% | −3,821−5.2% | Reduced |
| Formula Growth Ltd | 64,985 | $6.33M | 0.87% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 63,976 | $6.23M | 0.01% | −386−0.6% | Reduced |
| Bridgewater Associates, LP | 62,605 | $6.10M | 0.04% | +62,605 | New |
| Pier Capital, LLC | 61,613 | $6.00M | 0.60% | −9,417−13.3% | Reduced |
| Rhumbline Advisers | 59,234 | $5.77M | 0.01% | −3,884−6.2% | Reduced |
| PDT Partners, LLC | 59,203 | $5.77M | 0.38% | −2,679−4.3% | Reduced |
| SG Americas Securities, LLC | 58,533 | $5.70M | 0.03% | +17,595+43.0% | Added |
| Kennedy Capital Management, Inc. | 56,938 | $5.55M | 0.12% | −1,166−2.0% | Reduced |
| Schroder Investment Management Group | 52,807 | $5.14M | 0.01% | +52,807 | New |
| Parametric Portfolio Associates LLC | 52,623 | $5.13M | 0.00% | +18,377+53.7% | Added |
| First Republic Investment Management, Inc. | 49,751 | $4.85M | 0.01% | +9,511+23.6% | Added |
| Capital International Inc | 48,147 | $4.69M | 0.04% | −1,541−3.1% | Reduced |
| Legal & General Group Plc | 46,299 | $4.51M | 0.00% | +5,394+13.2% | Added |
| Twin Tree Management, LP | 44,606 | $4.34M | 0.13% | +44,606 | New |