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 |
|---|---|---|---|---|---|
| Public Employees Retirement System of Ohio | 39,530 | $1.17M | 0.00% | +13,287+50.6% | Added |
| Jump Financial, LLC | 39,100 | $1.16M | 0.04% | −165,130−80.9% | Reduced |
| Beacon Investment Advisory Services, Inc. | 37,930 | $1.12M | 0.05% | −4,031−9.6% | Reduced |
| Price T Rowe Associates Inc | 36,747 | $1.09M | 0.00% | +1,931+5.5% | Added |
| US Bancorp | 36,373 | $1.08M | 0.00% | +25,077+222.0% | Added |
| LMR Partners LLP | 35,708 | $1.06M | 0.03% | +35,708 | New |
| Wells Fargo & Company | 35,534 | $1.05M | 0.00% | −21,750−38.0% | Reduced |
| Harbor Capital Advisors, Inc. | 35,303 | $1.04M | 0.20% | +2,329+7.1% | 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 |
| Spouting Rock Asset Management, LLC | 34,926 | $1.03M | 0.38% | +94+0.3% | Added |
| Natixis Advisors, L.P. | 34,681 | $1.02M | 0.00% | +34,681 | New |
| State of Tennessee, Treasury Department | 34,520 | $1.02M | 0.00% | −4,021−10.4% | Reduced |
| Comerica Bank | 34,364 | $1.02M | 0.00% | +4,520+15.1% | Added |
| Susquehanna Portfolio Strategies, LLC | 34,241 | $1.01M | 0.02% | +34,241 | New |
| Janney Montgomery Scott LLC | 33,013 | $977.0K | 0.00% | +11,789+55.5% | Added |
| Louisiana State Employees Retirement System | 32,600 | $964.3K | 0.02% | −500−1.5% | Reduced |
| Yousif Capital Management, LLC | 32,518 | $961.9K | 0.01% | +20+0.1% | Added |
| UBS Group AG | 31,172 | $922.1K | 0.00% | −1,642−5.0% | Reduced |
| Capital International Inc | 29,213 | $864.1K | 0.01% | +2,520+9.4% | Added |
| Treasurer of the State of North Carolina | 28,573 | $845.0K | 0.00% | +280+1.0% | Added |
| Maryland State Retirement & Pension System | 28,452 | $841.6K | 0.02% | −318−1.1% | Reduced |
| Bayesian Capital Management, LP | 27,919 | $825.8K | 0.09% | +27,919 | New |
| Amalgamated Bank | 27,767 | $821.0K | 0.01% | −1,427−4.9% | Reduced |
| HighMark Wealth Management LLC | 27,170 | $803.7K | 0.59% | 00.0% | Unchanged |
| Oppenheimer Asset Management Inc. | 27,103 | $801.7K | 0.01% | +27,103 | New |
| Ensign Peak Advisors, Inc | 26,820 | $793.3K | 0.00% | +4,200+18.6% | Added |
| LPL Financial LLC | 25,341 | $749.6K | 0.00% | +2,433+10.6% | Added |
| MN Wealth Advisors, LLC | 25,133 | $743.4K | 0.51% | +25,133 | New |
| JB Capital LLC | 24,063 | $711.8K | 0.05% | +7,811+48.1% | Added |
| Stifel Financial Corp | 23,217 | $686.8K | 0.00% | +23,217 | New |
| Y-Intercept (Hong Kong) Ltd | 21,367 | $632.0K | 0.06% | +21,367 | New |
| Teachers Retirement System of the State of Kentucky | 21,290 | $630.0K | 0.01% | 00.0% | Unchanged |
| Dark Forest Capital Management LP | 21,232 | $628.0K | 0.09% | −37,478−63.8% | Reduced |
| Man Group plc | 20,654 | $610.9K | 0.00% | +20,654 | New |
| Davy Global Fund Management Ltd | 20,180 | $596.9K | 0.07% | 00.0% | Unchanged |
| Bessemer Group Inc | 20,150 | $596.0K | 0.00% | +5,080+33.7% | Added |
| Simplex Trading, LLC | 19,801 | $585.0K | 0.02% | +19,801 | New |
| Voya Investment Management LLC | 19,559 | $578.6K | 0.00% | −1,703−8.0% | Reduced |
| Advisor Group Holdings, Inc. | 19,055 | $563.6K | 0.00% | −2,485−11.5% | Reduced |
| Oregon Public Employees Retirement Fund | 19,052 | $563.6K | 0.01% | −348−1.8% | Reduced |
| Bokf, NA | 18,472 | $546.4K | 0.01% | −3,942−17.6% | Reduced |
| Oak Thistle LLC | 18,251 | $539.9K | 0.16% | +18,251 | New |
| Renaissance Technologies LLC | 18,227 | $539.0K | 0.00% | +18,227 | New |
| Arizona State Retirement System | 18,193 | $538.1K | 0.00% | −206−1.1% | Reduced |
| Gilder Gagnon Howe & Co LLC | 18,076 | $534.7K | 0.01% | +18,076 | New |
| Lecap Asset Management Ltd | 17,756 | $525.2K | 0.19% | +17,756 | New |
| Cresset Asset Management, LLC | 17,600 | $520.6K | 0.00% | +17,600 | New |
| Caption Management, LLC | 17,584 | $520.1K | 0.06% | +17,584 | New |
| Boothbay Fund Management, LLC | 17,416 | $515.2K | 0.02% | +17,416 | New |
| Apollon Wealth Management, LLC | 17,076 | $505.1K | 0.02% | −74−0.4% | Reduced |
| Teza Capital Management LLC | 16,999 | $502.8K | 0.08% | +16,999 | New |
| NinePointTwo Capital | 16,771 | $496.0K | 0.20% | +16,771 | New |
| Mariner, LLC | 16,460 | $487.3K | 0.00% | +16,460 | New |
| B. Riley Asset Management, LLC | 21,395 | $469.8K | 0.17% | +21,395 | New |
| Raymond James Financial Services Advisors, Inc. | 15,845 | $468.7K | 0.00% | −1,950−11.0% | Reduced |
| Pictet & Cie (Europe) SA | 15,810 | $467.7K | 0.01% | +15,810 | New |
| Commerce Bank | 15,562 | $460.3K | 0.00% | +15,562 | New |
| Pacific Capital Partners Ltd | 15,282 | $452.0K | 0.34% | +277+1.8% | Added |
| Shell Asset Management Co | 15,270 | $452.0K | 0.02% | −4,579−23.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,909 | $441.0K | 0.00% | +1,403+10.4% | Added |
| Handelsbanken Fonder AB | 14,800 | $438.0K | 0.00% | +4,100+38.3% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 14,043 | $415.4K | 0.00% | −29,465−67.7% | Reduced |
| HSBC Holdings PLC | 13,575 | $404.5K | 0.00% | −5,724−29.7% | Reduced |
| Victory Capital Management Inc | 13,484 | $398.9K | 0.00% | −85,256−86.3% | Reduced |
| Franklin Resources Inc | 12,557 | $371.4K | 0.00% | −599−4.6% | Reduced |
| Campbell & CO Investment Adviser LLC | 12,254 | $362.5K | 0.03% | +12,254 | New |
| Mutual of America Capital Management LLC | 11,390 | $336.9K | 0.00% | −16−0.1% | Reduced |
| Capital Group Investment Management Pte. Ltd. | 11,300 | $334.3K | 0.04% | 00.0% | Unchanged |
| Algert Global LLC | 11,143 | $329.6K | 0.01% | −31,500−73.9% | Reduced |
| Legato Capital Management LLC | 10,810 | $319.8K | 0.04% | +10,810 | New |
| Diversified Trust Co | 10,573 | $312.7K | 0.01% | +564+5.6% | Added |
| CI Private Wealth, LLC | 10,020 | $296.4K | 0.00% | +10,020 | New |
| Oppenheimer & Co Inc | 9,799 | $289.9K | 0.01% | +9,799 | New |
| Guggenheim Capital LLC | 9,246 | $273.5K | 0.00% | +9,246 | New |
| BNP Paribas Arbitrage, SA | 9,220 | $272.7K | 0.00% | −13,808−60.0% | Reduced |
| Everence Capital Management Inc | 9,020 | $267.0K | 0.02% | +9,020 | New |
| Keybank National Association | 8,678 | $256.7K | 0.00% | +8,678 | New |
| Bank of Montreal | 8,268 | $255.2K | 0.00% | +8,268 | New |
| Capstone Investment Advisors, LLC | 8,297 | $245.4K | 0.00% | +8,297 | New |
| Neuberger Berman Group LLC | 8,130 | $240.5K | 0.00% | +8,130 | New |
| Public Employees Retirement Association of Colorado | 8,105 | $240.0K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 8,006 | $236.8K | 0.00% | +8,006 | New |
| Prelude Capital Management, LLC | 7,925 | $234.4K | 0.02% | +7,925 | New |
| Creative Planning | 7,804 | $230.8K | 0.00% | +7,679+6,143.2% | Added |
| Landscape Capital Management, L.L.C. | 7,726 | $228.5K | 0.02% | +7,726 | New |
| Commonwealth Equity Services, LLC | 7,707 | $228.0K | 0.00% | −2,163−21.9% | Reduced |
| 180 Wealth Advisors, LLC | 8,037 | $227.7K | 0.05% | +8,037 | New |
| SEI Investments Co | 7,683 | $227.3K | 0.00% | −33,221−81.2% | Reduced |
| Park Avenue Securities LLC | 7,191 | $213.0K | 0.00% | +7,191 | New |
| Quantinno Capital Management LP | 7,111 | $210.0K | 0.01% | +7,111 | New |
| Pictet Asset Management Holding SA | 7,082 | $209.5K | 0.00% | +7,082 | New |
| Captrust Financial Advisors | 7,014 | $207.5K | 0.00% | +7,014 | New |
| CenterBook Partners LP | 6,929 | $205.0K | 0.03% | +6,929 | New |
| Advisory Services Network, LLC | 6,928 | $204.9K | 0.01% | +6,928 | New |
| Tower Research Capital LLC (TRC) | 6,408 | $189.5K | 0.00% | −285−4.3% | Reduced |
| Van Eck Associates Corp | 5,900 | $175.0K | 0.00% | +467+8.6% | Added |
| The PNC Financial Services Group, Inc. | 5,788 | $171.2K | 0.00% | +2,562+79.4% | Added |
| Newbridge Financial Services Group, Inc. | 4,470 | $132.2K | 0.06% | −1,555−25.8% | Reduced |
| Nisa Investment Advisors, LLC | 4,450 | $131.6K | 0.00% | −1,600−26.4% | Reduced |