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 2024
Institutional positions in Tandem Diabetes Care Inc as of Mar 31, 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
- 291
- +25 vs. Q4 2023
- Shares held
- 74.1M
- +3.31M (+4.7%) vs. Q4 2023
- Total value
- $2.63B
- +$531.0M (+25.3%) vs. Q4 2023
- New holders
- 54
- 123 more added
- Sold out
- 29
- 78 more reduced
2 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: 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 2024
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State Board of Administration of Florida Retirement System | 68,179 | $2.77M | 0.01% | +2,654+4.1% | Added |
| Great West Life Assurance Co | 79,642 | $2.82M | 0.01% | −1,238−1.5% | Reduced |
| Jump Financial, LLC | 80,067 | $2.84M | 0.08% | +40,967+104.8% | Added |
| Royal Bank of Canada | 83,322 | $2.95M | 0.00% | +14,915+21.8% | Added |
| Engineers Gate Manager LP | 84,947 | $3.01M | 0.08% | +84,947 | New |
| Alliancebernstein L.P. | 87,939 | $3.11M | 0.00% | −55,779−38.8% | Reduced |
| Credit Suisse AG | 90,763 | $3.21M | 0.00% | +1,623+1.8% | Added |
| JPMorgan Chase & Co | 93,662 | $3.32M | 0.00% | +7,237+8.4% | Added |
| Rice Hall James & Associates, LLC | 94,140 | $3.33M | 0.19% | −10,290−9.9% | Reduced |
| HRT Financial LP | 96,300 | $3.41M | 0.02% | +28,981+43.1% | Added |
| Raymond James & Associates | 96,848 | $3.43M | 0.00% | +4,863+5.3% | Added |
| State of Wisconsin Investment Board | 103,257 | $3.66M | 0.01% | −12,751−11.0% | Reduced |
| UBS Asset Management Americas Inc | 103,779 | $3.67M | 0.00% | +11,309+12.2% | Added |
| Holocene Advisors, LP | 104,080 | $3.69M | 0.01% | +104,080 | New |
| Truist Financial Corp | 113,527 | $4.02M | 0.01% | +26,043+29.8% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 118,221 | $4.19M | 0.02% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 118,709 | $4.20M | 0.01% | +118,709 | New |
| Goldman Sachs Group Inc | 118,837 | $4.21M | 0.00% | −106,888−47.4% | Reduced |
| Gotham Asset Management, LLC | 123,252 | $4.36M | 0.07% | +47,979+63.7% | Added |
| Formula Growth Ltd | 123,746 | $4.38M | 1.40% | +83,000+203.7% | Added |
| Swiss National Bank | 128,200 | $4.54M | 0.00% | 00.0% | Unchanged |
| Public Sector Pension Investment Board | 133,660 | $4.73M | 0.03% | −1,390−1.0% | Reduced |
| Prudential Financial Inc | 142,583 | $5.05M | 0.01% | +33,620+30.9% | Added |
| Nuveen Asset Management, LLC | 143,928 | $5.10M | 0.00% | −1,173−0.8% | Reduced |
| BNP Paribas Arbitrage, SA | 145,812 | $5.16M | 0.01% | +136,592+1,481.5% | Added |
| SG Americas Securities, LLC | 147,612 | $5.23M | 0.03% | +147,612 | New |
| Susquehanna International Group, LLP | 152,240 | $5.39M | 0.01% | +38,464+33.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 139,485 | $5.42M | 0.01% | +8,627+6.6% | Added |
| Rhumbline Advisers | 161,397 | $5.72M | 0.01% | −10,684−6.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 171,367 | $6.07M | 0.03% | −12,955−7.0% | Reduced |
| Lisanti Capital Growth, LLC | 174,830 | $6.19M | 1.51% | +68,935+65.1% | Added |
| Legal & General Group Plc | 180,581 | $6.39M | 0.00% | −786−0.4% | Reduced |
| Frontier Capital Management Co LLC | 184,338 | $6.53M | 0.06% | +38,429+26.3% | Added |
| Banque Pictet & Cie SA | 208,867 | $7.40M | 0.08% | +10,541+5.3% | Added |
| Integral Health Asset Management, LLC | 225,000 | $7.97M | 0.78% | +225,000 | New |
| Assenagon Asset Management S.A. | 226,427 | $8.02M | 0.02% | +226,427 | New |
| Envestnet Asset Management Inc | 232,010 | $8.22M | 0.00% | +46,870+25.3% | Added |
| Trexquant Investment LP | 233,083 | $8.25M | 0.16% | +71,129+43.9% | Added |
| Balyasny Asset Management LLC | 234,520 | $8.30M | 0.02% | +128,111+120.4% | Added |
| KBC Group NV | 239,944 | $8.50M | 0.03% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 243,663 | $8.63M | 0.01% | −3,662−1.5% | Reduced |
| Beaconlight Capital, LLC | 247,186 | $8.75M | 3.93% | +180,859+272.7% | Added |
| Invesco Ltd. | 252,932 | $8.96M | 0.00% | +7,245+2.9% | Added |
| DAFNA Capital Management LLC | 258,208 | $9.14M | 2.08% | +37,500+17.0% | Added |
| Baillie Gifford & Co | 259,697 | $9.20M | 0.01% | −2,946−1.1% | Reduced |
| Silvercrest Asset Management Group LLC | 266,158 | $9.42M | 0.06% | +10,907+4.3% | Added |
| Jane Street Group, LLC | 308,099 | $10.9M | 0.01% | +117,408+61.6% | Added |
| New York State Common Retirement Fund | 309,902 | $11.0M | 0.01% | −5,600−1.8% | Reduced |
| Tri Locum Partners LP | 326,506 | $11.6M | 4.01% | +326,506 | New |
| Cubist Systematic Strategies, LLC | 339,918 | $12.0M | 0.14% | +339,918 | New |
| Northern Trust Corp | 342,525 | $12.1M | 0.00% | −8,299−2.4% | Reduced |
| First Trust Advisors LP | 342,870 | $12.1M | 0.01% | +342,870 | New |
| Principal Financial Group Inc | 356,393 | $12.6M | 0.01% | +12,044+3.5% | Added |
| Squarepoint Ops LLC | 413,959 | $14.7M | 0.06% | −42,561−9.3% | Reduced |
| Charles Schwab Investment Management Inc | 417,543 | $14.8M | 0.00% | +20,802+5.2% | Added |
| Bank of New York Mellon Corp | 420,916 | $14.9M | 0.00% | −24,642−5.5% | Reduced |
| First Light Asset Management, LLC | 475,077 | $16.8M | 1.29% | +114,834+31.9% | Added |
| Kingdon Capital Management, L.L.C. | 493,080 | $17.5M | 2.31% | +298,880+153.9% | Added |
| Voloridge Investment Management, LLC | 521,632 | $18.5M | 0.07% | −430,930−45.2% | Reduced |
| Bank of America Corp | 536,171 | $19.0M | 0.00% | +453,299+547.0% | Added |
| Citadel Advisors LLC | 567,068 | $20.1M | 0.02% | +206,355+57.2% | Added |
| Renaissance Technologies LLC | 594,327 | $21.0M | 0.03% | +576,100+3,160.7% | Added |
| Chicago Capital, LLC | 671,305 | $23.8M | 0.72% | +194,368+40.8% | Added |
| Ameriprise Financial Inc | 792,028 | $28.1M | 0.01% | +478,474+152.6% | Added |
| Paradice Investment Management LLC | 821,993 | $29.1M | 5.05% | −259,893−24.0% | Reduced |
| Next Century Growth Investors LLC | 852,879 | $30.2M | 2.62% | +391,384+84.8% | Added |
| Gilder Gagnon Howe & Co LLC | 897,388 | $31.8M | 0.40% | +879,312+4,864.5% | Added |
| Brown Capital Management LLC | 954,567 | $33.8M | 0.60% | +219,940+29.9% | Added |
| Stephens Investment Management Group LLC | 962,559 | $34.1M | 0.45% | +2870.0% | Added |
| Capital International Investors | 1,017,195 | $36.0M | 0.01% | −66,366−6.1% | Reduced |
| Two Sigma Investments, LP | 1,021,993 | $36.2M | 0.09% | +320,639+45.7% | Added |
| Millennium Management LLC | 1,024,954 | $36.3M | 0.03% | +394,111+62.5% | Added |
| FMR LLC | 1,050,345 | $37.2M | 0.00% | −1,926,929−64.7% | Reduced |
| Geode Capital Management, LLC | 1,076,097 | $38.1M | 0.00% | +36,410+3.5% | Added |
| Two Sigma Advisers, LP | 1,076,883 | $38.1M | 0.09% | +75,300+7.5% | Added |
| Jacobs Levy Equity Management, Inc | 1,219,194 | $43.2M | 0.19% | −71,773−5.6% | Reduced |
| GW&K Investment Management, LLC | 1,305,909 | $46.2M | 0.41% | +79,151+6.5% | Added |
| Driehaus Capital Management LLC | 1,317,437 | $46.7M | 0.46% | +1,317,437 | New |
| Park West Asset Management LLC | 1,397,280 | $49.5M | 3.71% | +1,397,280 | New |
| Morgan Stanley | 1,398,145 | $49.5M | 0.00% | +525,980+60.3% | Added |
| Fred Alger Management, LLC | 1,497,071 | $53.0M | 0.26% | +1,194,292+394.4% | Added |
| Champlain Investment Partners, LLC | 1,513,557 | $53.6M | 0.31% | −16,275−1.1% | Reduced |
| Bellevue Group AG | 2,031,888 | $71.9M | 1.10% | +39,571+2.0% | Added |
| Janus Henderson Group PLC | 2,200,797 | $77.9M | 0.04% | −376,945−14.6% | Reduced |
| State Street Corp | 2,240,978 | $79.4M | 0.00% | −33,588−1.5% | Reduced |
| Jennison Associates LLC | 2,556,124 | $90.5M | 0.06% | +1,265,534+98.1% | Added |
| ArrowMark Colorado Holdings LLC | 2,934,179 | $103.9M | 1.18% | −8240.0% | Reduced |
| Marshall Wace, LLP | 3,120,374 | $110.5M | 0.18% | +2,768,459+786.7% | Added |
| Capital World Investors | 3,665,300 | $129.8M | 0.02% | −2,718,811−42.6% | Reduced |
| Vanguard Group Inc | 7,052,570 | $249.7M | 0.00% | +30,664+0.4% | Added |
| BlackRock Inc. | 9,232,481 | $326.9M | 0.01% | −13,172−0.1% | Reduced |
| Eminence Capital, LP | 0 | $0 | 0.00% | −5,170,451−100.0% | Sold out |
| Coronation Fund Managers Ltd. | 0 | $0 | 0.00% | −376,355−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −262,574−100.0% | Sold out |
| Invenomic Capital Management LP | 0 | $0 | 0.00% | −241,006−100.0% | Sold out |
| Weiss Multi-Strategy Advisers LLC | 0 | $0 | 0.00% | −142,024−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −91,206−100.0% | Sold out |
| Capital International Sarl | 0 | $0 | 0.00% | −56,242−100.0% | Sold out |
| Capital International Ltd | 0 | $0 | 0.00% | −55,912−100.0% | Sold out |
| Harbor Capital Advisors, Inc. | 0 | $0 | 0.00% | −35,303−100.0% | Sold out |