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, Q4 2023
Institutional positions in Tandem Diabetes Care Inc as of Dec 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
- 268
- +43 vs. Q3 2023
- Shares held
- 70.9M
- +1.30M (+1.9%) vs. Q3 2023
- Total value
- $2.10B
- +$651.3M (+45.1%) vs. Q3 2023
- New holders
- 75
- 84 more added
- Sold out
- 32
- 86 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mutual of America Capital Management LLC | 11,390 | $336.9K | 0.00% | −16−0.1% | Reduced |
| Campbell & CO Investment Adviser LLC | 12,254 | $362.5K | 0.03% | +12,254 | New |
| Franklin Resources Inc | 12,557 | $371.4K | 0.00% | −599−4.6% | Reduced |
| Victory Capital Management Inc | 13,484 | $398.9K | 0.00% | −85,256−86.3% | Reduced |
| HSBC Holdings PLC | 13,575 | $404.5K | 0.00% | −5,724−29.7% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 14,043 | $415.4K | 0.00% | −29,465−67.7% | Reduced |
| Handelsbanken Fonder AB | 14,800 | $438.0K | 0.00% | +4,100+38.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,909 | $441.0K | 0.00% | +1,403+10.4% | Added |
| Shell Asset Management Co | 15,270 | $452.0K | 0.02% | −4,579−23.1% | Reduced |
| Pacific Capital Partners Ltd | 15,282 | $452.0K | 0.34% | +277+1.8% | Added |
| Commerce Bank | 15,562 | $460.3K | 0.00% | +15,562 | New |
| Pictet & Cie (Europe) SA | 15,810 | $467.7K | 0.01% | +15,810 | New |
| Raymond James Financial Services Advisors, Inc. | 15,845 | $468.7K | 0.00% | −1,950−11.0% | Reduced |
| B. Riley Asset Management, LLC | 21,395 | $469.8K | 0.17% | +21,395 | New |
| Mariner, LLC | 16,460 | $487.3K | 0.00% | +16,460 | New |
| NinePointTwo Capital | 16,771 | $496.0K | 0.20% | +16,771 | New |
| Teza Capital Management LLC | 16,999 | $502.8K | 0.08% | +16,999 | New |
| Apollon Wealth Management, LLC | 17,076 | $505.1K | 0.02% | −74−0.4% | Reduced |
| Boothbay Fund Management, LLC | 17,416 | $515.2K | 0.02% | +17,416 | New |
| Caption Management, LLC | 17,584 | $520.1K | 0.06% | +17,584 | New |
| Cresset Asset Management, LLC | 17,600 | $520.6K | 0.00% | +17,600 | New |
| Lecap Asset Management Ltd | 17,756 | $525.2K | 0.19% | +17,756 | New |
| Gilder Gagnon Howe & Co LLC | 18,076 | $534.7K | 0.01% | +18,076 | New |
| Arizona State Retirement System | 18,193 | $538.1K | 0.00% | −206−1.1% | Reduced |
| Renaissance Technologies LLC | 18,227 | $539.0K | 0.00% | +18,227 | New |
| Oak Thistle LLC | 18,251 | $539.9K | 0.16% | +18,251 | New |
| Bokf, NA | 18,472 | $546.4K | 0.01% | −3,942−17.6% | Reduced |
| Oregon Public Employees Retirement Fund | 19,052 | $563.6K | 0.01% | −348−1.8% | Reduced |
| Advisor Group Holdings, Inc. | 19,055 | $563.6K | 0.00% | −2,485−11.5% | Reduced |
| Voya Investment Management LLC | 19,559 | $578.6K | 0.00% | −1,703−8.0% | Reduced |
| Simplex Trading, LLC | 19,801 | $585.0K | 0.02% | +19,801 | New |
| Bessemer Group Inc | 20,150 | $596.0K | 0.00% | +5,080+33.7% | Added |
| Davy Global Fund Management Ltd | 20,180 | $596.9K | 0.07% | 00.0% | Unchanged |
| Man Group plc | 20,654 | $610.9K | 0.00% | +20,654 | New |
| Dark Forest Capital Management LP | 21,232 | $628.0K | 0.09% | −37,478−63.8% | Reduced |
| Teachers Retirement System of the State of Kentucky | 21,290 | $630.0K | 0.01% | 00.0% | Unchanged |
| Y-Intercept (Hong Kong) Ltd | 21,367 | $632.0K | 0.06% | +21,367 | New |
| Stifel Financial Corp | 23,217 | $686.8K | 0.00% | +23,217 | New |
| JB Capital LLC | 24,063 | $711.8K | 0.05% | +7,811+48.1% | Added |
| MN Wealth Advisors, LLC | 25,133 | $743.4K | 0.51% | +25,133 | New |
| LPL Financial LLC | 25,341 | $749.6K | 0.00% | +2,433+10.6% | Added |
| Ensign Peak Advisors, Inc | 26,820 | $793.3K | 0.00% | +4,200+18.6% | Added |
| Oppenheimer Asset Management Inc. | 27,103 | $801.7K | 0.01% | +27,103 | New |
| HighMark Wealth Management LLC | 27,170 | $803.7K | 0.59% | 00.0% | Unchanged |
| Amalgamated Bank | 27,767 | $821.0K | 0.01% | −1,427−4.9% | Reduced |
| Bayesian Capital Management, LP | 27,919 | $825.8K | 0.09% | +27,919 | New |
| Maryland State Retirement & Pension System | 28,452 | $841.6K | 0.02% | −318−1.1% | Reduced |
| Treasurer of the State of North Carolina | 28,573 | $845.0K | 0.00% | +280+1.0% | Added |
| Capital International Inc | 29,213 | $864.1K | 0.01% | +2,520+9.4% | Added |
| UBS Group AG | 31,172 | $922.1K | 0.00% | −1,642−5.0% | Reduced |
| Yousif Capital Management, LLC | 32,518 | $961.9K | 0.01% | +20+0.1% | Added |
| Louisiana State Employees Retirement System | 32,600 | $964.3K | 0.02% | −500−1.5% | Reduced |
| Janney Montgomery Scott LLC | 33,013 | $977.0K | 0.00% | +11,789+55.5% | Added |
| Susquehanna Portfolio Strategies, LLC | 34,241 | $1.01M | 0.02% | +34,241 | New |
| Comerica Bank | 34,364 | $1.02M | 0.00% | +4,520+15.1% | Added |
| State of Tennessee, Treasury Department | 34,520 | $1.02M | 0.00% | −4,021−10.4% | Reduced |
| Natixis Advisors, L.P. | 34,681 | $1.02M | 0.00% | +34,681 | New |
| Spouting Rock Asset Management, LLC | 34,926 | $1.03M | 0.38% | +94+0.3% | Added |
| Brinker Capital Investments, LLC | 36,767 | $1.04M | 0.01% | +36,767 | New |
| Orion Portfolio Solutions, LLC | 36,767 | $1.04M | 0.01% | +36,767 | New |
| Harbor Capital Advisors, Inc. | 35,303 | $1.04M | 0.20% | +2,329+7.1% | Added |
| Wells Fargo & Company | 35,534 | $1.05M | 0.00% | −21,750−38.0% | Reduced |
| LMR Partners LLP | 35,708 | $1.06M | 0.03% | +35,708 | New |
| US Bancorp | 36,373 | $1.08M | 0.00% | +25,077+222.0% | Added |
| Price T Rowe Associates Inc | 36,747 | $1.09M | 0.00% | +1,931+5.5% | Added |
| Beacon Investment Advisory Services, Inc. | 37,930 | $1.12M | 0.05% | −4,031−9.6% | Reduced |
| Jump Financial, LLC | 39,100 | $1.16M | 0.04% | −165,130−80.9% | Reduced |
| Public Employees Retirement System of Ohio | 39,530 | $1.17M | 0.00% | +13,287+50.6% | Added |
| State of Alaska, Department of Revenue | 40,008 | $1.18M | 0.01% | −511−1.3% | Reduced |
| Formula Growth Ltd | 40,746 | $1.21M | 0.39% | 00.0% | Unchanged |
| Citigroup Inc | 42,978 | $1.27M | 0.00% | +13,245+44.5% | Added |
| Deutsche Bank AG | 46,835 | $1.39M | 0.00% | +42,273+926.6% | Added |
| Barclays PLC | 49,650 | $1.47M | 0.00% | −34,490−41.0% | Reduced |
| M&T Bank Corp | 49,649 | $1.47M | 0.01% | +26,943+118.7% | Added |
| Dimensional Fund Advisors LP | 53,832 | $1.59M | 0.00% | −81,177−60.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 54,718 | $1.62M | 0.01% | +54,718 | New |
| Capital International Ltd | 55,912 | $1.65M | 0.08% | −1,077−1.9% | Reduced |
| Texas Permanent School Fund | 55,995 | $1.66M | 0.01% | +961+1.7% | Added |
| Capital International Sarl | 56,242 | $1.66M | 0.06% | +3,106+5.8% | Added |
| Thrivent Financial for Lutherans | 57,990 | $1.72M | 0.00% | −1,543−2.6% | Reduced |
| Nomura Holdings Inc | 59,691 | $1.77M | 0.02% | +22,461+60.3% | Added |
| State Board of Administration of Florida Retirement System | 65,525 | $1.94M | 0.00% | +48+0.1% | Added |
| Beaconlight Capital, LLC | 66,327 | $1.96M | 0.93% | +66,327 | New |
| HRT Financial LP | 67,319 | $1.99M | 0.01% | +67,319 | New |
| Bridgewater Associates, LP | 68,384 | $2.02M | 0.01% | −9,175−11.8% | Reduced |
| Royal Bank of Canada | 68,407 | $2.02M | 0.00% | +37,682+122.6% | Added |
| California State Teachers Retirement System | 68,661 | $2.03M | 0.00% | −2,779−3.9% | Reduced |
| New York State Teachers Retirement System | 70,000 | $2.07M | 0.00% | 00.0% | Unchanged |
| Gotham Asset Management, LLC | 75,273 | $2.23M | 0.04% | +60,555+411.4% | Added |
| Great West Life Assurance Co | 80,880 | $2.38M | 0.01% | +1,473+1.9% | Added |
| Bank of America Corp | 82,872 | $2.45M | 0.00% | −7,312−8.1% | Reduced |
| JPMorgan Chase & Co | 86,425 | $2.56M | 0.00% | −72,993−45.8% | Reduced |
| Truist Financial Corp | 87,484 | $2.59M | 0.00% | +87,484 | New |
| Credit Suisse AG | 89,140 | $2.64M | 0.00% | +3,458+4.0% | Added |
| California Public Employees Retirement System | 91,206 | $2.70M | 0.00% | 00.0% | Unchanged |
| Raymond James & Associates | 91,985 | $2.72M | 0.00% | +51,721+128.5% | Added |
| UBS Asset Management Americas Inc | 92,470 | $2.74M | 0.00% | −2,677−2.8% | Reduced |
| D. E. Shaw & Co., Inc. | 93,140 | $2.76M | 0.00% | −157,804−62.9% | Reduced |
| Rice Hall James & Associates, LLC | 104,430 | $3.09M | 0.18% | −2,946−2.7% | Reduced |
| Lisanti Capital Growth, LLC | 105,895 | $3.13M | 0.74% | +105,895 | New |