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 2024
Institutional positions in Tandem Diabetes Care Inc as of Jun 30, 2024. 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
- 317
- +29 vs. Q1 2024
- Shares held
- 73.6M
- −425.3K (−0.6%) vs. Q1 2024
- Total value
- $2.96B
- +$343.5M (+13.1%) vs. Q1 2024
- New holders
- 64
- 124 more added
- Sold out
- 35
- 91 more reduced
3 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2024: 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 2024
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 11,122,903 | $448.1M | 0.01% | +1,890,422+20.5% | Added |
| Vanguard Group Inc | 7,378,002 | $297.3M | 0.01% | +325,432+4.6% | Added |
| Capital World Investors | 3,665,300 | $147.7M | 0.02% | 00.0% | Unchanged |
| State Street Corp | 2,572,564 | $103.6M | 0.00% | +331,586+14.8% | Added |
| ArrowMark Colorado Holdings LLC | 2,504,851 | $100.9M | 1.20% | −429,328−14.6% | Reduced |
| Fred Alger Management, LLC | 2,174,107 | $87.6M | 0.43% | +677,036+45.2% | Added |
| Jennison Associates LLC | 1,969,626 | $79.4M | 0.05% | −586,498−22.9% | Reduced |
| Citadel Advisors LLC | 1,808,741 | $72.9M | 0.07% | +1,241,673+219.0% | Added |
| Champlain Investment Partners, LLC | 1,629,527 | $65.7M | 0.40% | +115,970+7.7% | Added |
| Bellevue Group AG | 1,543,267 | $62.2M | 1.01% | −488,621−24.0% | Reduced |
| Geode Capital Management, LLC | 1,507,629 | $60.8M | 0.01% | +431,532+40.1% | Added |
| Ameriprise Financial Inc | 1,480,774 | $59.6M | 0.02% | +688,746+87.0% | Added |
| Janus Henderson Group PLC | 1,450,175 | $58.4M | 0.03% | −750,622−34.1% | Reduced |
| GW&K Investment Management, LLC | 1,343,111 | $54.1M | 0.49% | +37,202+2.8% | Added |
| Jacobs Levy Equity Management, Inc | 1,244,140 | $50.1M | 0.21% | +24,946+2.0% | Added |
| Stephens Investment Management Group LLC | 1,136,219 | $45.8M | 0.64% | +173,660+18.0% | Added |
| Two Sigma Investments, LP | 1,135,180 | $45.7M | 0.11% | +113,187+11.1% | Added |
| Two Sigma Advisers, LP | 1,131,583 | $45.6M | 0.10% | +54,700+5.1% | Added |
| Millennium Management LLC | 1,053,953 | $42.5M | 0.04% | +28,999+2.8% | Added |
| Gilder Gagnon Howe & Co LLC | 1,028,633 | $41.4M | 0.52% | +131,245+14.6% | Added |
| Morgan Stanley | 1,019,411 | $41.1M | 0.00% | −378,734−27.1% | Reduced |
| Driehaus Capital Management LLC | 955,244 | $38.5M | 0.37% | −362,193−27.5% | Reduced |
| Brown Capital Management LLC | 914,455 | $36.8M | 0.74% | −40,112−4.2% | Reduced |
| Next Century Growth Investors LLC | 914,370 | $36.8M | 3.06% | +61,491+7.2% | Added |
| FMR LLC | 893,086 | $36.0M | 0.00% | −157,259−15.0% | Reduced |
| Paradice Investment Management LLC | 821,993 | $33.1M | 5.86% | 00.0% | Unchanged |
| Chicago Capital, LLC | 821,062 | $33.1M | 0.98% | +149,757+22.3% | Added |
| First Light Asset Management, LLC | 708,482 | $28.5M | 2.50% | +233,405+49.1% | Added |
| Park West Asset Management LLC | 670,721 | $27.0M | 2.11% | −726,559−52.0% | Reduced |
| Bank of America Corp | 632,871 | $25.5M | 0.00% | +96,700+18.0% | Added |
| Capital International Investors | 606,469 | $24.4M | 0.01% | −410,726−40.4% | Reduced |
| Charles Schwab Investment Management Inc | 567,189 | $22.9M | 0.00% | +149,646+35.8% | Added |
| Marshall Wace, LLP | 524,393 | $21.1M | 0.03% | −2,595,981−83.2% | Reduced |
| Bank of New York Mellon Corp | 494,313 | $19.9M | 0.00% | +73,397+17.4% | Added |
| Principal Financial Group Inc | 448,093 | $18.1M | 0.01% | +91,700+25.7% | Added |
| Barclays PLC | 405,712 | $16.3M | 0.01% | +355,915+714.7% | Added |
| Victory Capital Management Inc | 403,370 | $16.3M | 0.02% | +389,632+2,836.2% | Added |
| New York State Common Retirement Fund | 384,507 | $15.5M | 0.02% | +74,605+24.1% | Added |
| First Trust Advisors LP | 378,897 | $15.3M | 0.02% | +36,027+10.5% | Added |
| Kingdon Capital Management, L.L.C. | 369,000 | $14.9M | 2.30% | −124,080−25.2% | Reduced |
| Northern Trust Corp | 364,544 | $14.7M | 0.00% | +22,019+6.4% | Added |
| Assenagon Asset Management S.A. | 311,427 | $12.5M | 0.03% | +85,000+37.5% | Added |
| Renaissance Technologies LLC | 295,823 | $11.9M | 0.02% | −298,504−50.2% | Reduced |
| UBS Group AG | 295,787 | $11.9M | 0.00% | +255,065+626.4% | Added |
| Oberweis Asset Management Inc | 282,000 | $11.4M | 0.70% | +282,000 | New |
| Silvercrest Asset Management Group LLC | 269,765 | $10.9M | 0.07% | +3,607+1.4% | Added |
| Envestnet Asset Management Inc | 251,014 | $10.1M | 0.00% | +19,004+8.2% | Added |
| Nuveen Asset Management, LLC | 244,592 | $9.85M | 0.00% | +100,664+69.9% | Added |
| KBC Group NV | 239,414 | $9.65M | 0.03% | −530−0.2% | Reduced |
| Russell Investments Group, Ltd. | 232,853 | $9.38M | 0.02% | −10,810−4.4% | Reduced |
| Voloridge Investment Management, LLC | 230,410 | $9.28M | 0.03% | −291,222−55.8% | Reduced |
| Baillie Gifford & Co | 222,386 | $8.96M | 0.01% | −37,311−14.4% | Reduced |
| Trexquant Investment LP | 208,389 | $8.40M | 0.13% | −24,694−10.6% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 205,410 | $8.28M | 0.03% | +34,043+19.9% | Added |
| DAFNA Capital Management LLC | 204,208 | $8.23M | 1.97% | −54,000−20.9% | Reduced |
| Invesco Ltd. | 203,501 | $8.20M | 0.00% | −49,431−19.5% | Reduced |
| BNP Paribas Arbitrage, SA | 193,697 | $7.80M | 0.01% | +47,885+32.8% | Added |
| Goldman Sachs Group Inc | 191,724 | $7.72M | 0.00% | +72,887+61.3% | Added |
| Royal Bank of Canada | 190,708 | $7.68M | 0.00% | +107,386+128.9% | Added |
| Rhumbline Advisers | 186,779 | $7.53M | 0.01% | +25,382+15.7% | Added |
| Legal & General Group Plc | 182,943 | $7.37M | 0.00% | +2,362+1.3% | Added |
| Frontier Capital Management Co LLC | 182,224 | $7.34M | 0.07% | −2,114−1.1% | Reduced |
| Banque Pictet & Cie SA | 162,272 | $6.54M | 0.07% | −46,595−22.3% | Reduced |
| Lisanti Capital Growth, LLC | 158,260 | $6.38M | 1.53% | −16,570−9.5% | Reduced |
| UBS Asset Management Americas Inc | 153,152 | $6.17M | 0.00% | +49,373+47.6% | Added |
| Alliancebernstein L.P. | 148,885 | $6.00M | 0.00% | +60,946+69.3% | Added |
| Public Sector Pension Investment Board | 142,086 | $5.72M | 0.04% | +8,426+6.3% | Added |
| FIL Ltd | 135,622 | $5.46M | 0.01% | +135,622 | New |
| Gotham Asset Management, LLC | 130,721 | $5.27M | 0.07% | +7,469+6.1% | Added |
| State of Wisconsin Investment Board | 127,611 | $5.14M | 0.01% | +24,354+23.6% | Added |
| Swiss National Bank | 127,000 | $5.12M | 0.00% | −1,200−0.9% | Reduced |
| Formula Growth Ltd | 124,646 | $5.02M | 1.82% | +900+0.7% | Added |
| Prudential Financial Inc | 121,335 | $4.89M | 0.01% | −21,248−14.9% | Reduced |
| Beaconlight Capital, LLC | 121,298 | $4.89M | 2.48% | −125,888−50.9% | Reduced |
| Man Group plc | 121,245 | $4.88M | 0.01% | +100,116+473.8% | Added |
| Squarepoint Ops LLC | 121,170 | $4.88M | 0.02% | −292,789−70.7% | Reduced |
| ExodusPoint Capital Management, LP | 118,553 | $4.78M | 0.05% | +118,553 | New |
| Skandinaviska Enskilda Banken AB (publ) | 118,221 | $4.77M | 0.02% | 00.0% | Unchanged |
| Citigroup Inc | 109,674 | $4.42M | 0.00% | +32,831+42.7% | Added |
| Truist Financial Corp | 109,227 | $4.40M | 0.01% | −4,300−3.8% | Reduced |
| Nicholas Investment Partners, LP | 98,063 | $3.95M | 0.41% | +98,063 | New |
| Raymond James & Associates | 96,671 | $3.89M | 0.00% | −177−0.2% | Reduced |
| Engineers Gate Manager LP | 96,088 | $3.87M | 0.09% | +11,141+13.1% | Added |
| Rice Hall James & Associates, LLC | 93,293 | $3.76M | 0.23% | −847−0.9% | Reduced |
| Jefferies Financial Group Inc. | 84,756 | $3.41M | 0.07% | +54,756+182.5% | Added |
| JPMorgan Chase & Co | 84,228 | $3.39M | 0.00% | −9,434−10.1% | Reduced |
| Macquarie Group Ltd | 83,756 | $3.38M | 0.00% | +83,756 | New |
| EAM Investors, LLC | 79,633 | $3.21M | 0.52% | +79,633 | New |
| Great West Life Assurance Co | 78,787 | $3.18M | 0.01% | −855−1.1% | Reduced |
| Susquehanna Fundamental Investments, LLC | 77,833 | $3.14M | 0.07% | +40,128+106.4% | Added |
| SG Americas Securities, LLC | 77,647 | $3.13M | 0.02% | −69,965−47.4% | Reduced |
| Mizuho Markets Americas LLC | 72,256 | $2.91M | 0.08% | +72,256 | New |
| New York State Teachers Retirement System | 68,900 | $2.78M | 0.01% | −1,100−1.6% | Reduced |
| Jane Street Group, LLC | 67,695 | $2.73M | 0.00% | −240,404−78.0% | Reduced |
| Tudor Investment Corp Et Al | 65,226 | $2.63M | 0.03% | −12,109−15.7% | Reduced |
| Adage Capital Partners GP, L.L.C. | 65,000 | $2.62M | 0.00% | −53,709−45.2% | Reduced |
| California State Teachers Retirement System | 63,023 | $2.54M | 0.00% | −2,166−3.3% | Reduced |
| Dimensional Fund Advisors LP | 56,200 | $2.26M | 0.00% | +14,664+35.3% | Added |
| Walleye Capital LLC | 55,834 | $2.25M | 0.02% | +50,813+1,012.0% | Added |
| Thrivent Financial for Lutherans | 53,619 | $2.16M | 0.00% | −2,952−5.2% | Reduced |