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 |
|---|---|---|---|---|---|
| Susquehanna International Group, LLP | 38,540 | $3.75M | 0.00% | −33,050−46.2% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 38,701 | $3.77M | 0.01% | +37,339+2,741.5% | Added |
| Lisanti Capital Growth, LLC | 41,320 | $4.03M | 0.50% | +41,320 | New |
| Twin Tree Management, LP | 44,606 | $4.34M | 0.13% | +44,606 | New |
| Legal & General Group Plc | 46,299 | $4.51M | 0.00% | +5,394+13.2% | Added |
| Capital International Inc | 48,147 | $4.69M | 0.04% | −1,541−3.1% | Reduced |
| First Republic Investment Management, Inc. | 49,751 | $4.85M | 0.01% | +9,511+23.6% | Added |
| Parametric Portfolio Associates LLC | 52,623 | $5.13M | 0.00% | +18,377+53.7% | Added |
| Schroder Investment Management Group | 52,807 | $5.14M | 0.01% | +52,807 | New |
| Kennedy Capital Management, Inc. | 56,938 | $5.55M | 0.12% | −1,166−2.0% | Reduced |
| SG Americas Securities, LLC | 58,533 | $5.70M | 0.03% | +17,595+43.0% | Added |
| PDT Partners, LLC | 59,203 | $5.77M | 0.38% | −2,679−4.3% | Reduced |
| Rhumbline Advisers | 59,234 | $5.77M | 0.01% | −3,884−6.2% | Reduced |
| Pier Capital, LLC | 61,613 | $6.00M | 0.60% | −9,417−13.3% | Reduced |
| Bridgewater Associates, LP | 62,605 | $6.10M | 0.04% | +62,605 | New |
| State of Wisconsin Investment Board | 63,976 | $6.23M | 0.01% | −386−0.6% | Reduced |
| Formula Growth Ltd | 64,985 | $6.33M | 0.87% | 00.0% | Unchanged |
| Frontier Capital Management Co LLC | 69,555 | $6.78M | 0.05% | −3,821−5.2% | Reduced |
| ExodusPoint Capital Management, LP | 70,112 | $6.83M | 0.11% | +10,745+18.1% | Added |
| Candriam Luxembourg S.C.A. | 73,587 | $7.17M | 0.05% | +21,217+40.5% | Added |
| State Board of Administration of Florida Retirement System | 75,394 | $7.34M | 0.01% | +966+1.3% | Added |
| Cubist Systematic Strategies, LLC | 75,438 | $7.35M | 0.08% | +16,588+28.2% | Added |
| Royce & Associates LP | 78,286 | $7.63M | 0.05% | +9,900+14.5% | Added |
| Next Century Growth Investors LLC | 79,857 | $7.78M | 0.61% | −10,863−12.0% | Reduced |
| Cinctive Capital Management LP | 82,131 | $8.00M | 0.44% | +36,988+81.9% | Added |
| Ameriprise Financial Inc | 84,084 | $8.17M | 0.00% | −162,385−65.9% | Reduced |
| Citigroup Inc | 88,544 | $8.62M | 0.01% | −28,198−24.2% | Reduced |
| Silvercrest Asset Management Group LLC | 91,483 | $8.91M | 0.06% | −205−0.2% | Reduced |
| UBS Asset Management Americas Inc | 93,192 | $9.08M | 0.00% | +7,510+8.8% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 96,073 | $9.36M | 0.06% | 00.0% | Unchanged |
| WCM Investment Management, LLC | 102,626 | $10.0M | 0.03% | +32,475+46.3% | Added |
| Bank of America Corp | 105,771 | $10.3M | 0.00% | +14,572+16.0% | Added |
| California State Teachers Retirement System | 106,069 | $10.3M | 0.01% | −1,969−1.8% | Reduced |
| Barclays PLC | 120,277 | $11.7M | 0.01% | −11,344−8.6% | Reduced |
| JPMorgan Chase & Co | 122,728 | $12.0M | 0.00% | +45,089+58.1% | Added |
| California Public Employees Retirement System | 124,042 | $12.1M | 0.01% | −11,621−8.6% | Reduced |
| Osterweis Capital Management Inc | 124,185 | $12.1M | 0.62% | +23,005+22.7% | Added |
| Deutsche Bank AG | 124,671 | $12.1M | 0.01% | −39,827−24.2% | Reduced |
| British Columbia Investment Management Corp | 125,920 | $12.3M | 0.08% | 00.0% | Unchanged |
| Redwood Investments, LLC | 127,311 | $12.4M | 1.00% | +25,397+24.9% | Added |
| Victory Capital Management Inc | 135,258 | $13.2M | 0.01% | −15,129−10.1% | Reduced |
| Dimensional Fund Advisors LP | 137,261 | $13.4M | 0.00% | +64,813+89.5% | Added |
| Swiss National Bank | 137,800 | $13.4M | 0.01% | +2,900+2.1% | Added |
| Allianz Asset Management GmbH | 144,010 | $14.0M | 0.01% | −606−0.4% | Reduced |
| Nicholas Company, Inc. | 154,028 | $15.0M | 0.26% | +59,840+63.5% | Added |
| Two Sigma Investments, LP | 166,041 | $16.2M | 0.04% | −228,595−57.9% | Reduced |
| Bank of Nova Scotia | 170,000 | $16.6M | 0.03% | +170,000 | New |
| Fred Alger Management, LLC | 172,892 | $16.8M | 0.04% | −2,092−1.2% | Reduced |
| Wells Fargo & Company | 174,958 | $17.0M | 0.00% | −57,829−24.8% | Reduced |
| Nomura Holdings Inc | 190,189 | $18.5M | 0.15% | +2,171+1.2% | Added |
| Intrinsic Edge Capital Management LLC | 201,535 | $19.6M | 1.17% | +19,135+10.5% | Added |
| Pictet Asset Management Ltd | 209,652 | $20.4M | 0.02% | −8,373−3.8% | Reduced |
| AXA S.A. | 223,387 | $21.8M | 0.06% | +38,815+21.0% | Added |
| Bank of New York Mellon Corp | 242,857 | $23.7M | 0.00% | −20,332−7.7% | Reduced |
| New York State Common Retirement Fund | 250,985 | $24.4M | 0.03% | −2,500−1.0% | Reduced |
| UBS Group AG | 272,626 | $26.6M | 0.01% | −96,928−26.2% | Reduced |
| Man Group plc | 280,567 | $27.3M | 0.10% | +207,352+283.2% | Added |
| Morgan Stanley | 282,827 | $27.5M | 0.00% | −86,759−23.5% | Reduced |
| Northern Trust Corp | 292,839 | $28.5M | 0.01% | −8,481−2.8% | Reduced |
| Millennium Management LLC | 302,412 | $29.5M | 0.04% | +275,522+1,024.6% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 309,447 | $30.1M | 1.53% | +81,116+35.5% | Added |
| Baillie Gifford & Co | 346,925 | $33.8M | 0.02% | +1680.0% | Added |
| American Century Companies Inc | 354,045 | $34.5M | 0.02% | −67,710−16.1% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 360,020 | $35.1M | 0.10% | +69,817+24.1% | Added |
| Wasatch Advisors Inc | 365,783 | $35.6M | 0.14% | +814+0.2% | Added |
| Westfield Capital Management Co LP | 395,981 | $38.6M | 0.23% | −20,468−4.9% | Reduced |
| Citadel Advisors LLC | 397,384 | $38.7M | 0.04% | −253,100−38.9% | Reduced |
| Nuveen Asset Management, LLC | 397,958 | $38.8M | 0.01% | +41,306+11.6% | Added |
| Assenagon Asset Management S.A. | 399,752 | $38.9M | 0.17% | +195,481+95.7% | Added |
| Chicago Capital, LLC | 457,461 | $44.6M | 1.74% | −1,432−0.3% | Reduced |
| Voya Investment Management LLC | 462,659 | $45.1M | 0.09% | −725,287−61.1% | Reduced |
| Charles Schwab Investment Management Inc | 464,090 | $45.2M | 0.02% | +11,009+2.4% | Added |
| Amundi | 477,514 | $46.5M | 0.03% | +477,514 | New |
| Eaton Vance Management | 527,583 | $51.4M | 0.07% | +70,583+15.4% | Added |
| First Light Asset Management, LLC | 528,606 | $51.5M | 3.09% | +3,477+0.7% | Added |
| Jennison Associates LLC | 532,969 | $51.9M | 0.03% | +16,035+3.1% | Added |
| Wellington Management Group LLP | 561,077 | $54.6M | 0.01% | +13,138+2.4% | Added |
| Norges Bank | 586,150 | $57.1M | 0.01% | +28,089+5.0% | Added |
| TimesSquare Capital Management, LLC | 598,200 | $58.3M | 0.48% | −8,600−1.4% | Reduced |
| Goldman Sachs Group Inc | 614,756 | $59.9M | 0.02% | +79,129+14.8% | Added |
| Point72 Asset Management, L.P. | 678,327 | $66.1M | 0.33% | +308,027+83.2% | Added |
| SEI Investments Co | 717,441 | $69.9M | 0.15% | +32,064+4.7% | Added |
| Stephens Investment Management Group LLC | 778,922 | $75.9M | 1.04% | +107,600+16.0% | Added |
| Price T Rowe Associates Inc | 781,343 | $76.1M | 0.01% | −312,972−28.6% | Reduced |
| Geode Capital Management, LLC | 790,005 | $76.9M | 0.01% | +12,672+1.6% | Added |
| Gilder Gagnon Howe & Co LLC | 790,567 | $77.0M | 0.38% | +9,108+1.2% | Added |
| Janus Henderson Group PLC | 831,162 | $81.0M | 0.03% | +831,162 | New |
| Macquarie Group Ltd | 943,533 | $91.9M | 0.08% | +887,777+1,592.3% | Added |
| Consonance Capital Management LP | 979,226 | $95.4M | 11.48% | +979,226 | New |
| Delphi Management Partners VIII, L.L.C. | 1,000,000 | $97.4M | 76.91% | 00.0% | Unchanged |
| Bellevue Group AG | 1,020,368 | $99.4M | 0.97% | +493,234+93.6% | Added |
| RTW Investments, LP | 1,147,408 | $111.8M | 1.69% | +8,178+0.7% | Added |
| State Street Corp | 1,190,140 | $115.9M | 0.01% | +346,024+41.0% | Added |
| Brown Capital Management LLC | 1,226,116 | $119.4M | 0.91% | −3,186−0.3% | Reduced |
| Federated Hermes, Inc. | 1,273,828 | $124.1M | 0.23% | +280.0% | Added |
| Champlain Investment Partners, LLC | 1,546,570 | $150.6M | 0.72% | +204,410+15.2% | Added |
| Invesco Ltd. | 1,603,154 | $156.1M | 0.04% | −167,697−9.5% | Reduced |
| Credit Suisse AG | 1,682,377 | $163.9M | 0.13% | −345,220−17.0% | Reduced |
| Capital World Investors | 3,276,704 | $319.2M | 0.05% | +188,425+6.1% | Added |
| BlackRock Inc. | 3,522,962 | $343.1M | 0.01% | +33,741+1.0% | Added |