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 |
|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | 8,772 | $310.6K | 0.00% | +766+9.6% | Added |
| Bank of Montreal | 8,945 | $319.0K | 0.00% | +677+8.2% | Added |
| Everence Capital Management Inc | 9,020 | $319.0K | 0.02% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 9,324 | $330.2K | 0.00% | +78+0.8% | Added |
| Deutsche Bank AG | 9,649 | $341.7K | 0.00% | −37,186−79.4% | Reduced |
| RiverPark Advisors, LLC | 10,153 | $359.5K | 0.30% | +9,237+1,008.4% | Added |
| CI Private Wealth, LLC | 10,306 | $364.9K | 0.00% | +286+2.9% | Added |
| Franklin Resources Inc | 10,493 | $371.6K | 0.00% | −2,064−16.4% | Reduced |
| Aviva PLC | 10,961 | $388.1K | 0.00% | +10,961 | New |
| Mutual of America Capital Management LLC | 11,234 | $397.8K | 0.00% | −156−1.4% | Reduced |
| Quantinno Capital Management LP | 11,915 | $422.0K | 0.01% | +4,804+67.6% | Added |
| Brevan Howard Capital Management LP | 12,087 | $428.0K | 0.04% | +12,087 | New |
| Keybank National Association | 12,565 | $444.9K | 0.00% | +3,887+44.8% | Added |
| Qube Research & Technologies Ltd | 12,722 | $450.5K | 0.00% | +12,722 | New |
| Diversified Trust Co | 13,173 | $466.5K | 0.01% | +2,600+24.6% | Added |
| Cambridge Investment Research Advisors, Inc. | 13,288 | $471.0K | 0.00% | +13,288 | New |
| Capstone Investment Advisors, LLC | 13,585 | $481.0K | 0.01% | +5,288+63.7% | Added |
| Victory Capital Management Inc | 13,738 | $486.5K | 0.00% | +254+1.9% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 14,082 | $498.6K | 0.00% | +39+0.3% | Added |
| MN Wealth Advisors, LLC | 14,283 | $505.8K | 0.31% | −10,850−43.2% | Reduced |
| Cetera Investment Advisers | 14,357 | $508.4K | 0.00% | +14,357 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,368 | $508.8K | 0.00% | −541−3.6% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 15,239 | $539.6K | 0.00% | +15,239 | New |
| Pacific Capital Partners Ltd | 15,282 | $541.1K | 0.35% | 00.0% | Unchanged |
| Commerce Bank | 15,727 | $556.9K | 0.00% | +165+1.1% | Added |
| Apollon Wealth Management, LLC | 15,849 | $561.2K | 0.02% | −1,227−7.2% | Reduced |
| Pictet & Cie (Europe) SA | 15,914 | $563.5K | 0.01% | +104+0.7% | Added |
| Raymond James Financial Services Advisors, Inc. | 16,014 | $567.1K | 0.00% | +169+1.1% | Added |
| Mariner, LLC | 16,542 | $585.7K | 0.00% | +82+0.5% | Added |
| Davy Global Fund Management Ltd | 16,551 | $586.1K | 0.07% | −3,629−18.0% | Reduced |
| Handelsbanken Fonder AB | 17,000 | $602.0K | 0.00% | +2,200+14.9% | Added |
| SEI Investments Co | 17,349 | $614.3K | 0.00% | +9,666+125.8% | Added |
| Oregon Public Employees Retirement Fund | 17,452 | $618.0K | 0.01% | −1,600−8.4% | Reduced |
| Arizona State Retirement System | 17,921 | $634.6K | 0.00% | −272−1.5% | Reduced |
| Legato Capital Management LLC | 18,025 | $638.3K | 0.08% | +7,215+66.7% | Added |
| Quarry LP | 19,065 | $675.1K | 0.28% | +18,548+3,587.6% | Added |
| Voya Investment Management LLC | 19,081 | $675.7K | 0.00% | −478−2.4% | Reduced |
| Quantbot Technologies LP | 20,047 | $709.9K | 0.04% | +20,047 | New |
| Bessemer Group Inc | 20,300 | $719.0K | 0.00% | +150+0.7% | Added |
| Man Group plc | 21,129 | $748.2K | 0.00% | +475+2.3% | Added |
| Teachers Retirement System of the State of Kentucky | 21,290 | $754.0K | 0.01% | 00.0% | Unchanged |
| Amalgamated Bank | 21,869 | $774.0K | 0.01% | −5,898−21.2% | Reduced |
| Bokf, NA | 23,817 | $806.2K | 0.01% | +5,345+28.9% | Added |
| Stifel Financial Corp | 23,688 | $838.8K | 0.00% | +471+2.0% | Added |
| Bayesian Capital Management, LP | 24,000 | $849.8K | 0.08% | −3,919−14.0% | Reduced |
| Teza Capital Management LLC | 24,278 | $859.7K | 0.11% | +7,279+42.8% | Added |
| Public Employees Retirement System of Ohio | 24,656 | $873.1K | 0.00% | −14,874−37.6% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 25,028 | $886.2K | 0.07% | +3,661+17.1% | Added |
| Ensign Peak Advisors, Inc | 25,532 | $904.1K | 0.00% | −1,288−4.8% | Reduced |
| Maryland State Retirement & Pension System | 28,452 | $915.3K | 0.02% | 00.0% | Unchanged |
| Duality Advisers, LP | 26,542 | $939.9K | 0.09% | +26,542 | New |
| HighMark Wealth Management LLC | 27,170 | $962.1K | 0.60% | 00.0% | Unchanged |
| Point72 (DIFC) Ltd | 27,551 | $975.6K | 0.08% | +27,551 | New |
| Cresset Asset Management, LLC | 28,186 | $998.1K | 0.00% | +10,586+60.1% | Added |
| Treasurer of the State of North Carolina | 28,773 | $1.02M | 0.00% | +200+0.7% | Added |
| Susquehanna Portfolio Strategies, LLC | 28,942 | $1.02M | 0.02% | −5,299−15.5% | Reduced |
| JB Capital LLC | 28,971 | $1.03M | 0.07% | +4,908+20.4% | Added |
| Allianz Asset Management GmbH | 29,429 | $1.04M | 0.00% | +29,429 | New |
| Yousif Capital Management, LLC | 29,675 | $1.05M | 0.01% | −2,843−8.7% | Reduced |
| Jefferies Financial Group Inc. | 30,000 | $1.06M | 0.02% | +30,000 | New |
| State of Tennessee, Treasury Department | 30,259 | $1.07M | 0.00% | −4,261−12.3% | Reduced |
| Comerica Bank | 31,042 | $1.10M | 0.00% | −3,322−9.7% | Reduced |
| Louisiana State Employees Retirement System | 32,300 | $1.14M | 0.02% | −300−0.9% | Reduced |
| Janney Montgomery Scott LLC | 34,506 | $1.22M | 0.00% | +1,493+4.5% | Added |
| Point72 Asset Management, L.P. | 35,000 | $1.24M | 0.00% | −955,336−96.5% | Reduced |
| US Bancorp | 36,017 | $1.28M | 0.00% | −356−1.0% | Reduced |
| Beacon Investment Advisory Services, Inc. | 36,463 | $1.29M | 0.06% | −1,467−3.9% | Reduced |
| Shell Asset Management Co | 32,841 | $1.32M | 0.06% | +17,571+115.1% | Added |
| Susquehanna Fundamental Investments, LLC | 37,705 | $1.34M | 0.06% | +37,705 | New |
| Price T Rowe Associates Inc | 38,732 | $1.37M | 0.00% | +1,985+5.4% | Added |
| Algert Global LLC | 39,113 | $1.38M | 0.05% | +27,970+251.0% | Added |
| LPL Financial LLC | 39,272 | $1.39M | 0.00% | +13,931+55.0% | Added |
| State of Alaska, Department of Revenue | 39,725 | $1.41M | 0.02% | −283−0.7% | Reduced |
| 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 |
| Oppenheimer Asset Management Inc. | 40,380 | $1.43M | 0.02% | +13,277+49.0% | Added |
| UBS Group AG | 40,722 | $1.44M | 0.00% | +9,550+30.6% | Added |
| Dimensional Fund Advisors LP | 41,536 | $1.47M | 0.00% | −12,296−22.8% | Reduced |
| Pura Vida Investments, LLC | 42,500 | $1.50M | 1.02% | +42,500 | New |
| Verition Fund Management LLC | 44,968 | $1.59M | 0.02% | +44,968 | New |
| LMR Partners LLP | 45,958 | $1.63M | 0.04% | +10,250+28.7% | Added |
| Wells Fargo & Company | 46,995 | $1.66M | 0.00% | +11,461+32.3% | Added |
| Barclays PLC | 49,797 | $1.76M | 0.00% | +147+0.3% | Added |
| Natixis Advisors, L.P. | 50,210 | $1.78M | 0.00% | +15,529+44.8% | Added |
| Lecap Asset Management Ltd | 52,653 | $1.86M | 0.39% | +34,897+196.5% | Added |
| Nomura Holdings Inc | 53,609 | $1.90M | 0.02% | −6,082−10.2% | Reduced |
| M&T Bank Corp | 55,295 | $1.96M | 0.01% | +5,646+11.4% | Added |
| Thrivent Financial for Lutherans | 56,571 | $2.00M | 0.00% | −1,419−2.4% | Reduced |
| Texas Permanent School Fund | 56,910 | $2.02M | 0.02% | +915+1.6% | Added |
| Cerity Partners LLC | 57,392 | $2.03M | 0.01% | +57,392 | New |
| Bridgewater Associates, LP | 59,600 | $2.11M | 0.01% | −8,784−12.8% | Reduced |
| Amundi | 68,348 | $2.11M | 0.00% | +68,348 | New |
| Capital Fund Management S.A. | 61,870 | $2.19M | 0.03% | +61,870 | New |
| California State Teachers Retirement System | 65,189 | $2.31M | 0.00% | −3,472−5.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 66,680 | $2.36M | 0.02% | +11,962+21.9% | Added |
| New York State Teachers Retirement System | 70,000 | $2.48M | 0.01% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 71,432 | $2.53M | 0.00% | −21,708−23.3% | Reduced |
| Prelude Capital Management, LLC | 76,030 | $2.69M | 0.18% | +68,105+859.4% | Added |
| Citigroup Inc | 76,843 | $2.72M | 0.00% | +33,865+78.8% | Added |
| Tudor Investment Corp Et Al | 77,335 | $2.74M | 0.03% | −154,403−66.6% | Reduced |