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, Q2 2021
Institutional positions in Tandem Diabetes Care Inc as of Jun 30, 2021. 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
- 303
- +15 vs. Q1 2021
- Shares held
- 59.0M
- +2.42M (+4.3%) vs. Q1 2021
- Total value
- $5.75B
- +$753.7M (+15.1%) vs. Q1 2021
- New holders
- 56
- 109 more added
- Sold out
- 41
- 94 more reduced
2 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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, Q2 2021
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Lisanti Capital Growth, LLC | 41,320 | $4.03M | 0.50% | +41,320 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 38,701 | $3.77M | 0.01% | +37,339+2,741.5% | Added |
| Susquehanna International Group, LLP | 38,540 | $3.75M | 0.00% | −33,050−46.2% | Reduced |
| State of New Jersey Common Pension Fund D | 38,375 | $3.74M | 0.01% | +963+2.6% | Added |
| Landscape Capital Management, L.L.C. | 38,336 | $3.73M | 0.46% | +2,012+5.5% | Added |
| Two Sigma Advisers, LP | 37,825 | $3.68M | 0.01% | −121,863−76.3% | Reduced |
| Public Employees Retirement System of Ohio | 37,419 | $3.65M | 0.01% | +3,544+10.5% | Added |
| Capital International Ltd | 36,690 | $3.57M | 0.20% | −400−1.1% | Reduced |
| Royal Bank of Canada | 36,370 | $3.54M | 0.00% | −12,910−26.2% | Reduced |
| Renaissance Technologies LLC | 34,427 | $3.35M | 0.00% | −136,700−79.9% | Reduced |
| Algert Global LLC | 34,080 | $3.32M | 1.12% | +19,866+139.8% | Added |
| Prudential Financial Inc | 33,496 | $3.26M | 0.00% | +5,454+19.4% | Added |
| Sectoral Asset Management Inc | 32,100 | $3.13M | 0.25% | −3,000−8.5% | Reduced |
| Alliancebernstein L.P. | 30,896 | $3.01M | 0.00% | −1,341−4.2% | Reduced |
| Spouting Rock Asset Management, LLC | 28,636 | $2.79M | 0.86% | +2,917+11.3% | Added |
| Crown Advisors Management, Inc. | 25,000 | $2.44M | 1.74% | 00.0% | Unchanged |
| Bridge City Capital, LLC | 24,484 | $2.38M | 0.81% | −810−3.2% | Reduced |
| Essex Investment Management Co LLC | 24,332 | $2.37M | 0.28% | −2,116−8.0% | Reduced |
| HighMark Wealth Management LLC | 23,603 | $2.30M | 1.69% | +34+0.1% | Added |
| Schonfeld Strategic Advisors LLC | 22,889 | $2.23M | 0.02% | +22,889 | New |
| BNP Paribas Arbitrage, SA | 22,726 | $2.21M | 0.00% | −71,465−75.9% | Reduced |
| Stifel Financial Corp | 22,379 | $2.18M | 0.00% | −292−1.3% | Reduced |
| Mirabella Financial Services LLP | 21,853 | $2.13M | 0.41% | +7,489+52.1% | Added |
| Treasurer of the State of North Carolina | 21,240 | $2.07M | 0.01% | −960−4.3% | Reduced |
| Principal Financial Group Inc | 21,207 | $2.07M | 0.00% | +1,133+5.6% | Added |
| Mutual of America Capital Management LLC | 20,637 | $2.01M | 0.02% | −21,403−50.9% | Reduced |
| Squarepoint Ops LLC | 20,091 | $1.96M | 0.01% | −65,930−76.6% | Reduced |
| Jane Street Group, LLC | 19,845 | $1.93M | 0.00% | +5,774+41.0% | Added |
| Bank of Montreal | 19,168 | $1.92M | 0.00% | +256+1.4% | Added |
| Winton Group Ltd | 19,599 | $1.91M | 0.10% | +10,278+110.3% | Added |
| LPL Financial LLC | 19,579 | $1.91M | 0.00% | −231−1.2% | Reduced |
| Raymond James & Associates | 18,747 | $1.83M | 0.00% | +1,366+7.9% | Added |
| Polar Capital Holdings Plc | 18,694 | $1.82M | 0.01% | +2,450+15.1% | Added |
| Granite Point Capital Management, L.P. | 17,708 | $1.73M | 0.51% | 00.0% | Unchanged |
| Sante Capital Fund, LP | 17,083 | $1.66M | 0.69% | +17,083 | New |
| Arizona State Retirement System | 16,991 | $1.66M | 0.01% | −209−1.2% | Reduced |
| Chartwell Investment Partners, LLC | 16,777 | $1.63M | 0.05% | +156+0.9% | Added |
| HRT Financial LP | 16,189 | $1.58M | 0.01% | +16,189 | New |
| D. E. Shaw & Co., Inc. | 15,194 | $1.48M | 0.00% | −3,187−17.3% | Reduced |
| Beacon Investment Advisory Services, Inc. | 14,616 | $1.42M | 0.06% | +1,725+13.4% | Added |
| HSBC Holdings PLC | 14,359 | $1.40M | 0.00% | +10,813+304.9% | Added |
| Mercer Global Advisors Inc | 13,878 | $1.35M | 0.01% | +11+0.1% | Added |
| Virginia Retirement Systems Et Al | 13,600 | $1.32M | 0.01% | +4,500+49.5% | Added |
| Guggenheim Capital LLC | 13,161 | $1.28M | 0.01% | −135−1.0% | Reduced |
| Tudor Investment Corp Et Al | 13,148 | $1.28M | 0.03% | +5,929+82.1% | Added |
| Davy Global Fund Management Ltd | 13,090 | $1.27M | 0.20% | −649−4.7% | Reduced |
| Banque Pictet & Cie SA | 12,984 | $1.26M | 0.01% | +611+4.9% | Added |
| Kensington Investment Counsel, LLC | 12,611 | $1.23M | 0.84% | +315+2.6% | Added |
| AlphaCrest Capital Management LLC | 12,456 | $1.21M | 0.05% | +2,256+22.1% | Added |
| Russell Investments Group, Ltd. | 12,338 | $1.20M | 0.00% | −78,491−86.4% | Reduced |
| Susquehanna Fundamental Investments, LLC | 12,043 | $1.17M | 0.02% | −10,355−46.2% | Reduced |
| Amalgamated Bank | 11,722 | $1.14M | 0.01% | +874+8.1% | Added |
| Envestnet Asset Management Inc | 11,324 | $1.10M | 0.00% | +323+2.9% | Added |
| Summit Global Investments | 11,300 | $1.10M | 0.07% | +11,300 | New |
| Prelude Capital Management, LLC | 11,245 | $1.09M | 0.06% | +11,245 | New |
| Cetera Advisor Networks LLC | 11,121 | $1.08M | 0.02% | +11,121 | New |
| Handelsbanken Fonder AB | 11,100 | $1.08M | 0.01% | −1,600−12.6% | Reduced |
| Illinois Municipal Retirement Fund | 10,851 | $1.06M | 0.04% | 00.0% | Unchanged |
| 1492 Capital Management LLC | 10,663 | $1.04M | 0.54% | 00.0% | Unchanged |
| Weiss Multi-Strategy Advisers LLC | 10,187 | $992.0K | 0.02% | +364+3.7% | Added |
| Commonwealth Equity Services, LLC | 9,284 | $904.0K | 0.00% | +2,409+35.0% | Added |
| Capula Management Ltd | 9,226 | $899.0K | 0.16% | +9,226 | New |
| Precept Management LLC | 9,000 | $877.0K | 0.89% | +9,000 | New |
| Edmond de Rothschild Holding S.A. | 8,926 | $870.0K | 0.02% | −1,176−11.6% | Reduced |
| Roundview Capital LLC | 8,862 | $863.0K | 0.10% | +8,862 | New |
| Trexquant Investment LP | 8,688 | $846.0K | 0.07% | −6,851−44.1% | Reduced |
| Manchester Capital Management LLC | 8,574 | $835.0K | 0.12% | 00.0% | Unchanged |
| Ausdal Financial Partners, Inc. | 8,510 | $829.0K | 0.13% | +774+10.0% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 8,433 | $821.0K | 0.03% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 8,350 | $813.0K | 0.01% | +2,599+45.2% | Added |
| Engineers Gate Manager LP | 8,224 | $801.0K | 0.05% | −7,618−48.1% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 8,116 | $790.0K | 0.00% | −637−7.3% | Reduced |
| Public Employees Retirement Association of Colorado | 8,105 | $789.0K | 0.00% | 00.0% | Unchanged |
| Shelton Capital Management | 8,000 | $779.0K | 0.03% | +8,000 | New |
| Strategic Wealth Partners, Ltd. | 7,982 | $777.0K | 0.25% | +564+7.6% | Added |
| Greenwood Capital Associates LLC | 7,570 | $737.0K | 0.11% | +87+1.2% | Added |
| Teacher Retirement System of Texas | 7,544 | $735.0K | 0.00% | +1,157+18.1% | Added |
| Silvant Capital Management LLC | 7,307 | $712.0K | 0.11% | 00.0% | Unchanged |
| Cambridge Investment Research Advisors, Inc. | 7,164 | $698.0K | 0.00% | −727−9.2% | Reduced |
| Bridgefront Capital, LLC | 6,907 | $673.0K | 0.25% | +6,907 | New |
| Xponance, Inc. | 6,774 | $660.0K | 0.01% | +1,106+19.5% | Added |
| APG Asset Management N.V. | 7,700 | $632.0K | 0.00% | +7,700 | New |
| Sumitomo Mitsui Trust Holdings, Inc. | 6,400 | $623.0K | 0.00% | +6,400 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 6,310 | $615.0K | 0.00% | 00.0% | Unchanged |
| Diversified Trust Co | 6,246 | $608.0K | 0.02% | +1,295+26.2% | Added |
| WealthTrust Axiom LLC | 6,000 | $584.0K | 0.19% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 6,000 | $584.0K | 0.01% | +6,000 | New |
| Paloma Partners Management Co | 5,922 | $577.0K | 0.02% | +1,619+37.6% | Added |
| Columbia Asset Management | 5,785 | $563.0K | 0.13% | −1,030−15.1% | Reduced |
| Occudo Quantitative Strategies LP | 5,619 | $547.0K | 0.08% | −2,394−29.9% | Reduced |
| US Bancorp | 5,427 | $529.0K | 0.00% | +1,178+27.7% | Added |
| Jump Financial, LLC | 5,423 | $529.0K | 0.05% | +5,423 | New |
| Pictet & Cie (Europe) SA | 5,391 | $525.0K | 0.02% | +791+17.2% | Added |
| The PNC Financial Services Group, Inc. | 5,162 | $504.0K | 0.00% | −335−6.1% | Reduced |
| Janney Montgomery Scott LLC | 5,095 | $496.0K | 0.00% | +795+18.5% | Added |
| Legal Advantage Investments, Inc. | 5,000 | $487.0K | 0.33% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 4,987 | $486.0K | 0.00% | −340−6.4% | Reduced |
| Pearl River Capital, LLC | 4,993 | $486.0K | 0.13% | +339+7.3% | Added |
| Maryland State Retirement & Pension System | 4,800 | $482.0K | 0.02% | 00.0% | Unchanged |
| FORA Capital, LLC | 4,876 | $475.0K | 0.09% | +4,876 | New |