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, Q1 2022
Institutional positions in Tandem Diabetes Care Inc as of Mar 31, 2022. 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
- 379
- −4 vs. Q4 2021
- Shares held
- 59.5M
- −891.8K (−1.5%) vs. Q4 2021
- Total value
- $6.92B
- −$2.17B (−23.8%) vs. Q4 2021
- New holders
- 62
- 153 more added
- Sold out
- 66
- 119 more reduced
5 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 6,531,074 | $759.5M | 0.02% | +52,436+0.8% | Added |
| Vanguard Group Inc | 6,306,724 | $733.4M | 0.02% | +146,577+2.4% | Added |
| FMR LLC | 6,119,598 | $711.6M | 0.06% | +496,614+8.8% | Added |
| Capital World Investors | 2,846,252 | $331.0M | 0.06% | −580,877−16.9% | Reduced |
| Invesco Ltd. | 2,080,173 | $241.9M | 0.06% | +137,202+7.1% | Added |
| State Street Corp | 1,708,030 | $198.6M | 0.01% | +59,778+3.6% | Added |
| Champlain Investment Partners, LLC | 1,541,325 | $179.2M | 0.93% | +54,812+3.7% | Added |
| Jackson Square Partners, LLC | 1,499,740 | $174.4M | 1.73% | −1,004,606−40.1% | Reduced |
| Brown Capital Management LLC | 1,218,947 | $141.8M | 1.41% | +30,299+2.5% | Added |
| Federated Hermes, Inc. | 1,200,594 | $139.6M | 0.32% | +890+0.1% | Added |
| Bellevue Group AG | 1,116,508 | $129.8M | 1.51% | +167,251+17.6% | Added |
| RTW Investments, LP | 1,004,936 | $116.9M | 2.42% | −155,798−13.4% | Reduced |
| Geode Capital Management, LLC | 854,243 | $99.3M | 0.01% | +30,445+3.7% | Added |
| Stephens Investment Management Group LLC | 833,969 | $97.0M | 1.42% | +14,354+1.8% | Added |
| Goldman Sachs Group Inc | 795,113 | $92.5M | 0.02% | −134,178−14.4% | Reduced |
| Gilder Gagnon Howe & Co LLC | 746,324 | $86.8M | 0.80% | −22,582−2.9% | Reduced |
| Wellington Management Group LLP | 700,515 | $81.5M | 0.01% | −8,100−1.1% | Reduced |
| Ameriprise Financial Inc | 678,229 | $78.9M | 0.02% | +486,762+254.2% | Added |
| Macquarie Group Ltd | 671,741 | $78.1M | 0.07% | −287,288−30.0% | Reduced |
| Price T Rowe Associates Inc | 627,697 | $73.0M | 0.01% | +3,886+0.6% | Added |
| Bank of New York Mellon Corp | 613,747 | $71.4M | 0.01% | +3,836+0.6% | Added |
| Norges Bank | 594,002 | $69.1M | 0.02% | +4,614+0.8% | Added |
| Point72 Asset Management, L.P. | 571,669 | $66.5M | 0.29% | +437,000+324.5% | Added |
| Voya Investment Management LLC | 517,202 | $60.1M | 0.12% | +157,768+43.9% | Added |
| Citadel Advisors LLC | 513,988 | $59.8M | 0.07% | −294,141−36.4% | Reduced |
| Charles Schwab Investment Management Inc | 503,580 | $58.6M | 0.02% | +12,318+2.5% | Added |
| Northern Trust Corp | 483,767 | $56.3M | 0.01% | −9,176−1.9% | Reduced |
| Lord, Abbett & Co. LLC | 480,397 | $55.9M | 0.15% | +432+0.1% | Added |
| Chicago Capital, LLC | 462,670 | $53.8M | 2.32% | +4,056+0.9% | Added |
| Millennium Management LLC | 456,092 | $53.0M | 0.07% | +242,438+113.5% | Added |
| First Light Asset Management, LLC | 435,305 | $50.6M | 4.46% | +23,521+5.7% | Added |
| Janus Henderson Group PLC | 359,855 | $41.8M | 0.02% | −289,472−44.6% | Reduced |
| SEI Investments Co | 349,868 | $40.7M | 0.08% | −211,195−37.6% | Reduced |
| Westfield Capital Management Co LP | 344,043 | $40.0M | 0.26% | +22,053+6.8% | Added |
| Nuveen Asset Management, LLC | 348,821 | $39.6M | 0.01% | +17,352+5.2% | Added |
| Baillie Gifford & Co | 333,801 | $38.8M | 0.03% | −23,151−6.5% | Reduced |
| American Century Companies Inc | 332,499 | $38.7M | 0.03% | +68,811+26.1% | Added |
| UBS Group AG | 316,158 | $36.8M | 0.02% | −88,756−21.9% | Reduced |
| AXA S.A. | 315,350 | $36.7M | 0.10% | +3,541+1.1% | Added |
| TimesSquare Capital Management, LLC | 305,795 | $35.6M | 0.40% | −63,850−17.3% | Reduced |
| New York State Common Retirement Fund | 300,703 | $35.0M | 0.04% | +41,394+16.0% | Added |
| Eaton Vance Management | 289,818 | $33.7M | 0.04% | +26,569+10.1% | Added |
| Hood River Capital Management LLC | 288,718 | $33.6M | 1.12% | +8,823+3.2% | Added |
| Redmile Group, LLC | 271,218 | $31.5M | 0.98% | +271,218 | New |
| First Trust Advisors LP | 252,873 | $29.4M | 0.03% | +52,798+26.4% | Added |
| Wasatch Advisors Inc | 252,192 | $29.3M | 0.14% | −87,230−25.7% | Reduced |
| Principal Financial Group Inc | 249,387 | $29.0M | 0.02% | −18,029−6.7% | Reduced |
| Pictet Asset Management SA | 224,393 | $26.1M | 0.03% | −41,751−15.7% | Reduced |
| Victory Capital Management Inc | 213,889 | $24.6M | 0.02% | −43,372−16.9% | Reduced |
| Nomura Holdings Inc | 198,827 | $24.1M | 0.18% | +30,563+18.2% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 186,756 | $21.7M | 1.70% | −6,405−3.3% | Reduced |
| Dimensional Fund Advisors LP | 185,408 | $21.6M | 0.01% | +75,358+68.5% | Added |
| Morgan Stanley | 173,099 | $20.1M | 0.00% | −303,197−63.7% | Reduced |
| Kingdon Capital Management, L.L.C. | 172,400 | $20.0M | 3.41% | +22,400+14.9% | Added |
| Credit Suisse AG | 164,462 | $19.1M | 0.02% | −312,015−65.5% | Reduced |
| Rhumbline Advisers | 163,070 | $19.0M | 0.02% | +113+0.1% | Added |
| Amundi | 153,919 | $18.9M | 0.01% | +24,390+18.8% | Added |
| Nicholas Company, Inc. | 156,873 | $18.2M | 0.33% | +175+0.1% | Added |
| Redwood Investments, LLC | 156,625 | $18.2M | 1.72% | −680.0% | Reduced |
| Swiss National Bank | 150,200 | $17.5M | 0.01% | +11,400+8.2% | Added |
| Fred Alger Management, LLC | 148,612 | $17.3M | 0.06% | −728−0.5% | Reduced |
| Consonance Capital Management LP | 147,327 | $17.1M | 29.07% | −153,337−51.0% | Reduced |
| CIBC Private Wealth Group, LLC | 143,457 | $16.7M | 0.04% | −11,322−7.3% | Reduced |
| Essex Investment Management Co LLC | 142,178 | $16.5M | 2.06% | +55,481+64.0% | Added |
| JPMorgan Chase & Co | 133,397 | $15.5M | 0.00% | +38,460+40.5% | Added |
| Intrinsic Edge Capital Management LLC | 132,175 | $15.4M | 1.21% | +5,244+4.1% | Added |
| California Public Employees Retirement System | 128,283 | $14.9M | 0.01% | −2,229−1.7% | Reduced |
| Lisanti Capital Growth, LLC | 124,654 | $14.5M | 1.63% | +49,154+65.1% | Added |
| Polar Asset Management Partners Inc. | 120,500 | $14.0M | 0.17% | +120,500 | New |
| Assenagon Asset Management S.A. | 119,974 | $14.0M | 0.05% | +59,198+97.4% | Added |
| Man Group plc | 113,872 | $13.2M | 0.05% | −45,534−28.6% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 113,753 | $13.2M | 0.03% | −11,068−8.9% | Reduced |
| Allspring Global Investments Holdings, LLC | 109,733 | $12.8M | 0.02% | −937−0.8% | Reduced |
| American International Group, Inc. | 108,107 | $12.6M | 0.07% | +202+0.2% | Added |
| WCM Investment Management, LLC | 106,276 | $12.4M | 0.03% | +9,964+10.3% | Added |
| Barclays PLC | 106,051 | $12.3M | 0.01% | +3,594+3.5% | Added |
| Bank of America Corp | 103,823 | $12.1M | 0.00% | −17,942−14.7% | Reduced |
| Bank of Montreal | 102,429 | $12.0M | 0.01% | +78,601+329.9% | Added |
| Squarepoint Ops LLC | 103,168 | $12.0M | 0.09% | −8,195−7.4% | Reduced |
| Balyasny Asset Management LLC | 102,891 | $12.0M | 0.05% | −68,587−40.0% | Reduced |
| Schroder Investment Management Group | 101,268 | $11.8M | 0.02% | +41,015+68.1% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 97,599 | $11.3M | 0.07% | +794+0.8% | Added |
| Legal & General Group Plc | 97,499 | $11.3M | 0.00% | +1,389+1.4% | Added |
| UBS Asset Management Americas Inc | 96,316 | $11.2M | 0.00% | +6,418+7.1% | Added |
| Cubist Systematic Strategies, LLC | 95,277 | $11.1M | 0.09% | +14,754+18.3% | Added |
| Bridgewater Associates, LP | 92,250 | $10.7M | 0.04% | +22,390+32.0% | Added |
| Alliancebernstein L.P. | 92,065 | $10.7M | 0.00% | −6,165−6.3% | Reduced |
| Silvercrest Asset Management Group LLC | 91,768 | $10.7M | 0.07% | +1,093+1.2% | Added |
| Mutual of America Capital Management LLC | 91,455 | $10.6M | 0.11% | +14,439+18.7% | Added |
| British Columbia Investment Management Corp | 90,000 | $10.5M | 0.07% | +13,200+17.2% | Added |
| Parametric Portfolio Associates LLC | 88,132 | $10.2M | 0.01% | −22,271−20.2% | Reduced |
| State of Wisconsin Investment Board | 86,024 | $10.0M | 0.02% | +21,786+33.9% | Added |
| Atika Capital Management LLC | 84,000 | $9.77M | 0.93% | +84,000 | New |
| Retirement Systems of Alabama | 83,362 | $9.69M | 0.04% | +167+0.2% | Added |
| Osterweis Capital Management Inc | 81,840 | $9.52M | 0.52% | −19,840−19.5% | Reduced |
| California State Teachers Retirement System | 80,805 | $9.40M | 0.01% | −6,474−7.4% | Reduced |
| Susquehanna Fundamental Investments, LLC | 79,778 | $9.28M | 0.18% | +22,472+39.2% | Added |
| Sectoral Asset Management Inc | 79,588 | $9.26M | 1.64% | +63,813+404.5% | Added |
| Castleark Management LLC | 78,180 | $9.09M | 0.39% | +4,380+5.9% | Added |
| KBC Group NV | 74,147 | $8.62M | 0.03% | −15,705−17.5% | Reduced |