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 |
|---|---|---|---|---|---|
| Bridgewater Associates, LP | 59,600 | $2.11M | 0.01% | −8,784−12.8% | Reduced |
| Cerity Partners LLC | 57,392 | $2.03M | 0.01% | +57,392 | New |
| Texas Permanent School Fund | 56,910 | $2.02M | 0.02% | +915+1.6% | Added |
| Thrivent Financial for Lutherans | 56,571 | $2.00M | 0.00% | −1,419−2.4% | Reduced |
| M&T Bank Corp | 55,295 | $1.96M | 0.01% | +5,646+11.4% | Added |
| Nomura Holdings Inc | 53,609 | $1.90M | 0.02% | −6,082−10.2% | Reduced |
| Lecap Asset Management Ltd | 52,653 | $1.86M | 0.39% | +34,897+196.5% | Added |
| Natixis Advisors, L.P. | 50,210 | $1.78M | 0.00% | +15,529+44.8% | Added |
| Barclays PLC | 49,797 | $1.76M | 0.00% | +147+0.3% | Added |
| Wells Fargo & Company | 46,995 | $1.66M | 0.00% | +11,461+32.3% | Added |
| LMR Partners LLP | 45,958 | $1.63M | 0.04% | +10,250+28.7% | Added |
| Verition Fund Management LLC | 44,968 | $1.59M | 0.02% | +44,968 | New |
| Pura Vida Investments, LLC | 42,500 | $1.50M | 1.02% | +42,500 | New |
| Dimensional Fund Advisors LP | 41,536 | $1.47M | 0.00% | −12,296−22.8% | Reduced |
| UBS Group AG | 40,722 | $1.44M | 0.00% | +9,550+30.6% | Added |
| Oppenheimer Asset Management Inc. | 40,380 | $1.43M | 0.02% | +13,277+49.0% | Added |
| Brinker Capital Investments, LLC | 40,230 | $1.42M | 0.02% | +3,463+9.4% | Added |
| Orion Portfolio Solutions, LLC | 40,230 | $1.42M | 0.02% | +3,463+9.4% | Added |
| State of Alaska, Department of Revenue | 39,725 | $1.41M | 0.02% | −283−0.7% | Reduced |
| LPL Financial LLC | 39,272 | $1.39M | 0.00% | +13,931+55.0% | Added |
| Algert Global LLC | 39,113 | $1.38M | 0.05% | +27,970+251.0% | Added |
| Price T Rowe Associates Inc | 38,732 | $1.37M | 0.00% | +1,985+5.4% | Added |
| Susquehanna Fundamental Investments, LLC | 37,705 | $1.34M | 0.06% | +37,705 | New |
| Shell Asset Management Co | 32,841 | $1.32M | 0.06% | +17,571+115.1% | Added |
| Beacon Investment Advisory Services, Inc. | 36,463 | $1.29M | 0.06% | −1,467−3.9% | Reduced |
| US Bancorp | 36,017 | $1.28M | 0.00% | −356−1.0% | Reduced |
| Point72 Asset Management, L.P. | 35,000 | $1.24M | 0.00% | −955,336−96.5% | Reduced |
| Janney Montgomery Scott LLC | 34,506 | $1.22M | 0.00% | +1,493+4.5% | Added |
| Louisiana State Employees Retirement System | 32,300 | $1.14M | 0.02% | −300−0.9% | Reduced |
| Comerica Bank | 31,042 | $1.10M | 0.00% | −3,322−9.7% | Reduced |
| State of Tennessee, Treasury Department | 30,259 | $1.07M | 0.00% | −4,261−12.3% | Reduced |
| Jefferies Financial Group Inc. | 30,000 | $1.06M | 0.02% | +30,000 | New |
| Yousif Capital Management, LLC | 29,675 | $1.05M | 0.01% | −2,843−8.7% | Reduced |
| Allianz Asset Management GmbH | 29,429 | $1.04M | 0.00% | +29,429 | New |
| JB Capital LLC | 28,971 | $1.03M | 0.07% | +4,908+20.4% | Added |
| Susquehanna Portfolio Strategies, LLC | 28,942 | $1.02M | 0.02% | −5,299−15.5% | Reduced |
| Treasurer of the State of North Carolina | 28,773 | $1.02M | 0.00% | +200+0.7% | Added |
| Cresset Asset Management, LLC | 28,186 | $998.1K | 0.00% | +10,586+60.1% | Added |
| Point72 (DIFC) Ltd | 27,551 | $975.6K | 0.08% | +27,551 | New |
| HighMark Wealth Management LLC | 27,170 | $962.1K | 0.60% | 00.0% | Unchanged |
| Duality Advisers, LP | 26,542 | $939.9K | 0.09% | +26,542 | New |
| Maryland State Retirement & Pension System | 28,452 | $915.3K | 0.02% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 25,532 | $904.1K | 0.00% | −1,288−4.8% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 25,028 | $886.2K | 0.07% | +3,661+17.1% | Added |
| Public Employees Retirement System of Ohio | 24,656 | $873.1K | 0.00% | −14,874−37.6% | Reduced |
| Teza Capital Management LLC | 24,278 | $859.7K | 0.11% | +7,279+42.8% | Added |
| Bayesian Capital Management, LP | 24,000 | $849.8K | 0.08% | −3,919−14.0% | Reduced |
| Stifel Financial Corp | 23,688 | $838.8K | 0.00% | +471+2.0% | Added |
| Bokf, NA | 23,817 | $806.2K | 0.01% | +5,345+28.9% | Added |
| Amalgamated Bank | 21,869 | $774.0K | 0.01% | −5,898−21.2% | Reduced |
| Teachers Retirement System of the State of Kentucky | 21,290 | $754.0K | 0.01% | 00.0% | Unchanged |
| Man Group plc | 21,129 | $748.2K | 0.00% | +475+2.3% | Added |
| Bessemer Group Inc | 20,300 | $719.0K | 0.00% | +150+0.7% | Added |
| Quantbot Technologies LP | 20,047 | $709.9K | 0.04% | +20,047 | New |
| Voya Investment Management LLC | 19,081 | $675.7K | 0.00% | −478−2.4% | Reduced |
| Quarry LP | 19,065 | $675.1K | 0.28% | +18,548+3,587.6% | Added |
| Legato Capital Management LLC | 18,025 | $638.3K | 0.08% | +7,215+66.7% | Added |
| Arizona State Retirement System | 17,921 | $634.6K | 0.00% | −272−1.5% | Reduced |
| Oregon Public Employees Retirement Fund | 17,452 | $618.0K | 0.01% | −1,600−8.4% | Reduced |
| SEI Investments Co | 17,349 | $614.3K | 0.00% | +9,666+125.8% | Added |
| Handelsbanken Fonder AB | 17,000 | $602.0K | 0.00% | +2,200+14.9% | Added |
| Davy Global Fund Management Ltd | 16,551 | $586.1K | 0.07% | −3,629−18.0% | Reduced |
| Mariner, LLC | 16,542 | $585.7K | 0.00% | +82+0.5% | Added |
| Raymond James Financial Services Advisors, Inc. | 16,014 | $567.1K | 0.00% | +169+1.1% | Added |
| Pictet & Cie (Europe) SA | 15,914 | $563.5K | 0.01% | +104+0.7% | Added |
| Apollon Wealth Management, LLC | 15,849 | $561.2K | 0.02% | −1,227−7.2% | Reduced |
| Commerce Bank | 15,727 | $556.9K | 0.00% | +165+1.1% | Added |
| Pacific Capital Partners Ltd | 15,282 | $541.1K | 0.35% | 00.0% | Unchanged |
| Healthcare of Ontario Pension Plan Trust Fund | 15,239 | $539.6K | 0.00% | +15,239 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,368 | $508.8K | 0.00% | −541−3.6% | Reduced |
| Cetera Investment Advisers | 14,357 | $508.4K | 0.00% | +14,357 | New |
| MN Wealth Advisors, LLC | 14,283 | $505.8K | 0.31% | −10,850−43.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 14,082 | $498.6K | 0.00% | +39+0.3% | Added |
| Victory Capital Management Inc | 13,738 | $486.5K | 0.00% | +254+1.9% | Added |
| Capstone Investment Advisors, LLC | 13,585 | $481.0K | 0.01% | +5,288+63.7% | Added |
| Cambridge Investment Research Advisors, Inc. | 13,288 | $471.0K | 0.00% | +13,288 | New |
| Diversified Trust Co | 13,173 | $466.5K | 0.01% | +2,600+24.6% | Added |
| Qube Research & Technologies Ltd | 12,722 | $450.5K | 0.00% | +12,722 | New |
| Keybank National Association | 12,565 | $444.9K | 0.00% | +3,887+44.8% | Added |
| Brevan Howard Capital Management LP | 12,087 | $428.0K | 0.04% | +12,087 | New |
| Quantinno Capital Management LP | 11,915 | $422.0K | 0.01% | +4,804+67.6% | Added |
| Mutual of America Capital Management LLC | 11,234 | $397.8K | 0.00% | −156−1.4% | Reduced |
| Aviva PLC | 10,961 | $388.1K | 0.00% | +10,961 | New |
| Franklin Resources Inc | 10,493 | $371.6K | 0.00% | −2,064−16.4% | Reduced |
| CI Private Wealth, LLC | 10,306 | $364.9K | 0.00% | +286+2.9% | Added |
| RiverPark Advisors, LLC | 10,153 | $359.5K | 0.30% | +9,237+1,008.4% | Added |
| Deutsche Bank AG | 9,649 | $341.7K | 0.00% | −37,186−79.4% | Reduced |
| Guggenheim Capital LLC | 9,324 | $330.2K | 0.00% | +78+0.8% | Added |
| Everence Capital Management Inc | 9,020 | $319.0K | 0.02% | 00.0% | Unchanged |
| Bank of Montreal | 8,945 | $319.0K | 0.00% | +677+8.2% | Added |
| Manufacturers Life Insurance Company, The | 8,772 | $310.6K | 0.00% | +766+9.6% | Added |
| Park Avenue Securities LLC | 8,650 | $306.0K | 0.00% | +1,459+20.3% | Added |
| Dynamic Technology Lab Private Ltd | 8,593 | $304.0K | 0.03% | +8,593 | New |
| Advisor Group Holdings, Inc. | 8,574 | $303.6K | 0.00% | −10,481−55.0% | Reduced |
| Oak Thistle LLC | 8,557 | $303.0K | 0.27% | −9,694−53.1% | Reduced |
| Creative Planning | 8,474 | $300.1K | 0.00% | +670+8.6% | Added |
| Oppenheimer & Co Inc | 8,399 | $297.4K | 0.00% | −1,400−14.3% | Reduced |
| Gsa Capital Partners LLP | 8,393 | $297.0K | 0.02% | +8,393 | New |
| Neuberger Berman Group LLC | 8,357 | $295.9K | 0.00% | +227+2.8% | Added |
| Stephens Inc | 8,356 | $295.9K | 0.00% | +8,028+2,447.6% | Added |