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 |
|---|---|---|---|---|---|
| Algert Global LLC | 92,626 | $3.76M | 0.18% | +27,380+42.0% | Added |
| 1492 Capital Management LLC | 95,155 | $3.86M | 2.39% | +80,584+553.0% | Added |
| Weiss Multi-Strategy Advisers LLC | 95,953 | $3.90M | 0.10% | −31,073−24.5% | Reduced |
| Banque Pictet & Cie SA | 98,088 | $3.98M | 0.04% | +98,088 | New |
| Barclays PLC | 100,772 | $4.09M | 0.00% | +13,514+15.5% | Added |
| Public Sector Pension Investment Board | 113,088 | $4.59M | 0.03% | +113,088 | New |
| Sessa Capital IM, L.P. | 121,820 | $4.95M | 0.20% | +121,820 | New |
| Skandinaviska Enskilda Banken AB (publ) | 122,394 | $4.97M | 0.03% | −201−0.2% | Reduced |
| ExodusPoint Capital Management, LP | 123,083 | $5.00M | 0.06% | +84,620+220.0% | Added |
| Swiss National Bank | 138,700 | $5.63M | 0.00% | −16,400−10.6% | Reduced |
| JPMorgan Chase & Co | 144,086 | $5.85M | 0.00% | −57,612−28.6% | Reduced |
| Jump Financial, LLC | 144,149 | $5.85M | 0.24% | +122,400+562.8% | Added |
| Atika Capital Management LLC | 145,350 | $5.90M | 0.92% | −56,930−28.1% | Reduced |
| Goldman Sachs Group Inc | 146,478 | $5.95M | 0.00% | −195,216−57.1% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 148,368 | $6.01M | 0.01% | +3,478+2.4% | Added |
| Frontier Capital Management Co LLC | 148,805 | $6.04M | 0.06% | +34,641+30.3% | Added |
| Coronation Fund Managers Ltd. | 150,345 | $6.11M | 0.16% | −34,799−18.8% | Reduced |
| WCM Investment Management, LLC | 151,103 | $6.14M | 0.02% | +456+0.3% | Added |
| Nomura Holdings Inc | 153,520 | $6.23M | 0.06% | −15,029−8.9% | Reduced |
| Cubist Systematic Strategies, LLC | 161,789 | $6.57M | 0.06% | −22,807−12.4% | Reduced |
| Silvercrest Asset Management Group LLC | 163,604 | $6.64M | 0.05% | +22,936+16.3% | Added |
| Rhumbline Advisers | 177,613 | $7.21M | 0.01% | −11,895−6.3% | Reduced |
| Citadel Advisors LLC | 180,055 | $7.31M | 0.01% | −86,564−32.5% | Reduced |
| Amundi | 181,321 | $7.46M | 0.00% | +26,326+17.0% | Added |
| Susquehanna International Group, LLP | 187,322 | $7.61M | 0.01% | +116,858+165.8% | Added |
| Essex Investment Management Co LLC | 187,713 | $7.62M | 1.11% | +8,679+4.8% | Added |
| Peregrine Capital Management LLC | 190,516 | $7.74M | 0.22% | +5,619+3.0% | Added |
| Legal & General Group Plc | 191,405 | $7.77M | 0.00% | +95,808+100.2% | Added |
| Soleus Capital Management, L.P. | 203,300 | $8.26M | 1.02% | −109,200−34.9% | Reduced |
| Capital Fund Management S.A. | 205,694 | $8.35M | 0.16% | −83,889−29.0% | Reduced |
| Fred Alger Management, LLC | 224,408 | $9.11M | 0.05% | +79,241+54.6% | Added |
| AXA S.A. | 241,740 | $9.82M | 0.03% | −337,519−58.3% | Reduced |
| Dimensional Fund Advisors LP | 244,583 | $9.93M | 0.00% | +207,203+554.3% | Added |
| D. E. Shaw & Co., Inc. | 245,567 | $9.97M | 0.02% | +93,572+61.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 247,268 | $10.0M | 0.05% | +6,373+2.6% | Added |
| Adage Capital Partners GP, L.L.C. | 250,000 | $10.2M | 0.02% | +50,000+25.0% | Added |
| Bank of America Corp | 255,435 | $10.4M | 0.00% | +139,463+120.3% | Added |
| Baillie Gifford & Co | 262,943 | $10.7M | 0.01% | −141−0.1% | Reduced |
| Balyasny Asset Management LLC | 280,192 | $11.4M | 0.04% | −300,703−51.8% | Reduced |
| Ameriprise Financial Inc | 287,487 | $11.7M | 0.00% | +71,579+33.2% | Added |
| Price T Rowe Associates Inc | 291,191 | $11.8M | 0.00% | +925+0.3% | Added |
| Jacobs Levy Equity Management, Inc | 293,277 | $11.9M | 0.07% | +278,048+1,825.8% | Added |
| Millennium Management LLC | 294,904 | $12.0M | 0.01% | −318,431−51.9% | Reduced |
| Invesco Ltd. | 297,940 | $12.1M | 0.00% | +197,590+196.9% | Added |
| Chicago Capital, LLC | 302,990 | $12.3M | 0.61% | −25,230−7.7% | Reduced |
| Charles Schwab Investment Management Inc | 348,447 | $14.2M | 0.00% | +5,921+1.7% | Added |
| Northern Trust Corp | 364,138 | $14.8M | 0.00% | −232,280−38.9% | Reduced |
| Principal Financial Group Inc | 387,613 | $15.7M | 0.01% | +133,479+52.5% | Added |
| New York State Common Retirement Fund | 398,865 | $16.2M | 0.02% | +22,760+6.1% | Added |
| Tri Locum Partners LP | 417,448 | $17.0M | 5.16% | +417,448 | New |
| Eagle Health Investments LP | 425,525 | $17.3M | 3.36% | −164,975−27.9% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 454,550 | $18.5M | 0.06% | +87,002+23.7% | Added |
| Octagon Capital Advisors LP | 474,929 | $19.3M | 2.78% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 483,341 | $19.6M | 0.01% | −53,631−10.0% | Reduced |
| Voloridge Investment Management, LLC | 484,624 | $19.7M | 0.10% | +434,770+872.1% | Added |
| Norges Bank | 557,912 | $22.7M | 0.00% | −75,036−11.9% | Reduced |
| First Light Asset Management, LLC | 589,185 | $23.9M | 2.15% | +3,035+0.5% | Added |
| Bank of New York Mellon Corp | 590,580 | $24.0M | 0.01% | −49,148−7.7% | Reduced |
| Two Sigma Investments, LP | 922,483 | $37.5M | 0.11% | +42,778+4.9% | Added |
| Morgan Stanley | 931,772 | $37.8M | 0.00% | +456,222+95.9% | Added |
| Geode Capital Management, LLC | 936,677 | $38.0M | 0.00% | +22,309+2.4% | Added |
| Two Sigma Advisers, LP | 1,023,393 | $41.6M | 0.11% | +62,310+6.5% | Added |
| Stephens Investment Management Group LLC | 1,029,997 | $41.8M | 0.70% | +46,846+4.8% | Added |
| Capital International Investors | 1,259,967 | $51.2M | 0.01% | +24,723+2.0% | Added |
| Janus Henderson Group PLC | 1,294,244 | $52.6M | 0.03% | +828,534+177.9% | Added |
| Bellevue Group AG | 1,793,763 | $72.8M | 1.06% | +2,313+0.1% | Added |
| State Street Corp | 2,066,929 | $83.9M | 0.00% | +239,659+13.1% | Added |
| Brown Capital Management LLC | 2,170,773 | $88.2M | 1.32% | +155,374+7.7% | Added |
| Eminence Capital, LP | 2,469,657 | $100.3M | 1.69% | −313,816−11.3% | Reduced |
| Champlain Investment Partners, LLC | 3,273,113 | $132.9M | 0.84% | +204,250+6.7% | Added |
| Capital World Investors | 5,956,530 | $241.9M | 0.05% | +1,106,346+22.8% | Added |
| Vanguard Group Inc | 7,047,477 | $286.2M | 0.01% | +920,248+15.0% | Added |
| FMR LLC | 8,239,730 | $334.6M | 0.03% | −1,402,277−14.5% | Reduced |
| BlackRock Inc. | 9,207,560 | $373.9M | 0.01% | +2,861,120+45.1% | Added |
| Proequities, Inc. | 0 | $0 | 0.00% | −398−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −881,307−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −359,605−100.0% | Sold out |
| Granite Investment Partners, LLC | 0 | $0 | 0.00% | −319,524−100.0% | Sold out |
| Osterweis Capital Management Inc | 0 | $0 | 0.00% | −96,120−100.0% | Sold out |
| Altium Capital Management LP | 0 | $0 | 0.00% | −90,000−100.0% | Sold out |
| Retirement Systems of Alabama | 0 | $0 | 0.00% | −84,748−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −68,321−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −66,837−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −51,798−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −45,636−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −36,977−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −33,667−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −30,368−100.0% | Sold out |
| Illinois Municipal Retirement Fund | 0 | $0 | 0.00% | −23,406−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −18,131−100.0% | Sold out |
| State of Michigan Retirement System | 0 | $0 | 0.00% | −16,345−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −16,714−100.0% | Sold out |
| Kent Lake Capital LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −12,328−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −10,265−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −10,236−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −10,225−100.0% | Sold out |
| New Mexico Educational Retirement Board | 0 | $0 | 0.00% | −10,100−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −9,624−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −8,503−100.0% | Sold out |