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 2023
Institutional positions in Tandem Diabetes Care Inc as of Mar 31, 2023. 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
- 274
- −18 vs. Q4 2022
- Shares held
- 68.1M
- +3.82M (+5.9%) vs. Q4 2022
- Total value
- $2.77B
- −$120.0M (−4.2%) vs. Q4 2022
- New holders
- 34
- 117 more added
- Sold out
- 52
- 92 more reduced
3 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 9,207,560 | $373.9M | 0.01% | +2,861,120+45.1% | Added |
| FMR LLC | 8,239,730 | $334.6M | 0.03% | −1,402,277−14.5% | Reduced |
| Vanguard Group Inc | 7,047,477 | $286.2M | 0.01% | +920,248+15.0% | Added |
| Capital World Investors | 5,956,530 | $241.9M | 0.05% | +1,106,346+22.8% | Added |
| Champlain Investment Partners, LLC | 3,273,113 | $132.9M | 0.84% | +204,250+6.7% | Added |
| Eminence Capital, LP | 2,469,657 | $100.3M | 1.69% | −313,816−11.3% | Reduced |
| Brown Capital Management LLC | 2,170,773 | $88.2M | 1.32% | +155,374+7.7% | Added |
| State Street Corp | 2,066,929 | $83.9M | 0.00% | +239,659+13.1% | Added |
| Bellevue Group AG | 1,793,763 | $72.8M | 1.06% | +2,313+0.1% | Added |
| Janus Henderson Group PLC | 1,294,244 | $52.6M | 0.03% | +828,534+177.9% | Added |
| Capital International Investors | 1,259,967 | $51.2M | 0.01% | +24,723+2.0% | Added |
| Stephens Investment Management Group LLC | 1,029,997 | $41.8M | 0.70% | +46,846+4.8% | Added |
| Two Sigma Advisers, LP | 1,023,393 | $41.6M | 0.11% | +62,310+6.5% | Added |
| Geode Capital Management, LLC | 936,677 | $38.0M | 0.00% | +22,309+2.4% | Added |
| Morgan Stanley | 931,772 | $37.8M | 0.00% | +456,222+95.9% | Added |
| Two Sigma Investments, LP | 922,483 | $37.5M | 0.11% | +42,778+4.9% | Added |
| Bank of New York Mellon Corp | 590,580 | $24.0M | 0.01% | −49,148−7.7% | Reduced |
| First Light Asset Management, LLC | 589,185 | $23.9M | 2.15% | +3,035+0.5% | Added |
| Norges Bank | 557,912 | $22.7M | 0.00% | −75,036−11.9% | Reduced |
| Voloridge Investment Management, LLC | 484,624 | $19.7M | 0.10% | +434,770+872.1% | Added |
| Nuveen Asset Management, LLC | 483,341 | $19.6M | 0.01% | −53,631−10.0% | Reduced |
| Octagon Capital Advisors LP | 474,929 | $19.3M | 2.78% | 00.0% | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 454,550 | $18.5M | 0.06% | +87,002+23.7% | Added |
| Eagle Health Investments LP | 425,525 | $17.3M | 3.36% | −164,975−27.9% | Reduced |
| Tri Locum Partners LP | 417,448 | $17.0M | 5.16% | +417,448 | New |
| New York State Common Retirement Fund | 398,865 | $16.2M | 0.02% | +22,760+6.1% | Added |
| Principal Financial Group Inc | 387,613 | $15.7M | 0.01% | +133,479+52.5% | Added |
| Northern Trust Corp | 364,138 | $14.8M | 0.00% | −232,280−38.9% | Reduced |
| Charles Schwab Investment Management Inc | 348,447 | $14.2M | 0.00% | +5,921+1.7% | Added |
| Chicago Capital, LLC | 302,990 | $12.3M | 0.61% | −25,230−7.7% | Reduced |
| Invesco Ltd. | 297,940 | $12.1M | 0.00% | +197,590+196.9% | Added |
| Millennium Management LLC | 294,904 | $12.0M | 0.01% | −318,431−51.9% | Reduced |
| Jacobs Levy Equity Management, Inc | 293,277 | $11.9M | 0.07% | +278,048+1,825.8% | Added |
| Price T Rowe Associates Inc | 291,191 | $11.8M | 0.00% | +925+0.3% | Added |
| Ameriprise Financial Inc | 287,487 | $11.7M | 0.00% | +71,579+33.2% | Added |
| Balyasny Asset Management LLC | 280,192 | $11.4M | 0.04% | −300,703−51.8% | Reduced |
| Baillie Gifford & Co | 262,943 | $10.7M | 0.01% | −141−0.1% | Reduced |
| Bank of America Corp | 255,435 | $10.4M | 0.00% | +139,463+120.3% | Added |
| Adage Capital Partners GP, L.L.C. | 250,000 | $10.2M | 0.02% | +50,000+25.0% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 247,268 | $10.0M | 0.05% | +6,373+2.6% | Added |
| D. E. Shaw & Co., Inc. | 245,567 | $9.97M | 0.02% | +93,572+61.6% | Added |
| Dimensional Fund Advisors LP | 244,583 | $9.93M | 0.00% | +207,203+554.3% | Added |
| AXA S.A. | 241,740 | $9.82M | 0.03% | −337,519−58.3% | Reduced |
| Fred Alger Management, LLC | 224,408 | $9.11M | 0.05% | +79,241+54.6% | Added |
| Capital Fund Management S.A. | 205,694 | $8.35M | 0.16% | −83,889−29.0% | Reduced |
| Soleus Capital Management, L.P. | 203,300 | $8.26M | 1.02% | −109,200−34.9% | Reduced |
| Legal & General Group Plc | 191,405 | $7.77M | 0.00% | +95,808+100.2% | Added |
| Peregrine Capital Management LLC | 190,516 | $7.74M | 0.22% | +5,619+3.0% | Added |
| Essex Investment Management Co LLC | 187,713 | $7.62M | 1.11% | +8,679+4.8% | Added |
| Susquehanna International Group, LLP | 187,322 | $7.61M | 0.01% | +116,858+165.8% | Added |
| Amundi | 181,321 | $7.46M | 0.00% | +26,326+17.0% | Added |
| Citadel Advisors LLC | 180,055 | $7.31M | 0.01% | −86,564−32.5% | Reduced |
| Rhumbline Advisers | 177,613 | $7.21M | 0.01% | −11,895−6.3% | Reduced |
| Silvercrest Asset Management Group LLC | 163,604 | $6.64M | 0.05% | +22,936+16.3% | Added |
| Cubist Systematic Strategies, LLC | 161,789 | $6.57M | 0.06% | −22,807−12.4% | Reduced |
| Nomura Holdings Inc | 153,520 | $6.23M | 0.06% | −15,029−8.9% | Reduced |
| WCM Investment Management, LLC | 151,103 | $6.14M | 0.02% | +456+0.3% | Added |
| Coronation Fund Managers Ltd. | 150,345 | $6.11M | 0.16% | −34,799−18.8% | Reduced |
| Frontier Capital Management Co LLC | 148,805 | $6.04M | 0.06% | +34,641+30.3% | Added |
| Mirae Asset Global Investments Co., Ltd. | 148,368 | $6.01M | 0.01% | +3,478+2.4% | Added |
| Goldman Sachs Group Inc | 146,478 | $5.95M | 0.00% | −195,216−57.1% | Reduced |
| Atika Capital Management LLC | 145,350 | $5.90M | 0.92% | −56,930−28.1% | Reduced |
| Jump Financial, LLC | 144,149 | $5.85M | 0.24% | +122,400+562.8% | Added |
| JPMorgan Chase & Co | 144,086 | $5.85M | 0.00% | −57,612−28.6% | Reduced |
| Swiss National Bank | 138,700 | $5.63M | 0.00% | −16,400−10.6% | Reduced |
| ExodusPoint Capital Management, LP | 123,083 | $5.00M | 0.06% | +84,620+220.0% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 122,394 | $4.97M | 0.03% | −201−0.2% | Reduced |
| Sessa Capital IM, L.P. | 121,820 | $4.95M | 0.20% | +121,820 | New |
| Public Sector Pension Investment Board | 113,088 | $4.59M | 0.03% | +113,088 | New |
| Barclays PLC | 100,772 | $4.09M | 0.00% | +13,514+15.5% | Added |
| Banque Pictet & Cie SA | 98,088 | $3.98M | 0.04% | +98,088 | New |
| Weiss Multi-Strategy Advisers LLC | 95,953 | $3.90M | 0.10% | −31,073−24.5% | Reduced |
| 1492 Capital Management LLC | 95,155 | $3.86M | 2.39% | +80,584+553.0% | Added |
| Algert Global LLC | 92,626 | $3.76M | 0.18% | +27,380+42.0% | Added |
| UBS Asset Management Americas Inc | 91,953 | $3.73M | 0.00% | +3,585+4.1% | Added |
| State of Wisconsin Investment Board | 91,388 | $3.71M | 0.01% | −8,018−8.1% | Reduced |
| California Public Employees Retirement System | 91,206 | $3.70M | 0.00% | −27,152−22.9% | Reduced |
| Victory Capital Management Inc | 91,203 | $3.70M | 0.00% | +16,150+21.5% | Added |
| Canada Pension Plan Investment Board | 88,700 | $3.60M | 0.01% | +31,400+54.8% | Added |
| SEI Investments Co | 82,965 | $3.37M | 0.01% | +2,512+3.1% | Added |
| Credit Suisse AG | 81,509 | $3.31M | 0.00% | −1,674−2.0% | Reduced |
| California State Teachers Retirement System | 80,370 | $3.26M | 0.00% | −1,137−1.4% | Reduced |
| Great West Life Assurance Co | 79,659 | $3.23M | 0.01% | +19,491+32.4% | Added |
| Bridgewater Associates, LP | 78,984 | $3.21M | 0.02% | +3,137+4.1% | Added |
| New York State Teachers Retirement System | 73,624 | $2.99M | 0.01% | +9,529+14.9% | Added |
| Quantbot Technologies LP | 71,384 | $2.90M | 0.21% | −919−1.3% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 70,881 | $2.88M | 0.25% | −2,208−3.0% | Reduced |
| Tudor Investment Corp Et Al | 70,176 | $2.85M | 0.05% | +70,176 | New |
| State of Tennessee, Treasury Department | 68,706 | $2.79M | 0.01% | +18,706+37.4% | Added |
| UBS Group AG | 68,392 | $2.78M | 0.00% | +30,731+81.6% | Added |
| State Board of Administration of Florida Retirement System | 68,179 | $2.77M | 0.01% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 68,081 | $2.76M | 0.02% | +39,156+135.4% | Added |
| KBC Group NV | 67,925 | $2.76M | 0.01% | +5,276+8.4% | Added |
| Gotham Asset Management, LLC | 64,566 | $2.62M | 0.06% | +20,806+47.5% | Added |
| Thrivent Financial for Lutherans | 63,721 | $2.59M | 0.01% | +46,594+272.0% | Added |
| BNP Paribas Arbitrage, SA | 63,322 | $2.57M | 0.01% | +17,773+39.0% | Added |
| Prudential Financial Inc | 59,675 | $2.42M | 0.00% | +59,675 | New |
| Kennedy Capital Management, Inc. | 59,558 | $2.42M | 0.07% | +76+0.1% | Added |
| Voya Investment Management LLC | 59,254 | $2.41M | 0.00% | −14,121−19.2% | Reduced |
| State of New Jersey Common Pension Fund D | 58,895 | $2.39M | 0.01% | 00.0% | Unchanged |