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 |
|---|---|---|---|---|---|
| Tocqueville Asset Management L.P. | 4,600 | $448.0K | 0.01% | +100+2.2% | Added |
| Spearhead Capital Advisors, LLC | 4,602 | $448.0K | 0.06% | +567+14.1% | Added |
| HighTower Advisors, LLC | 4,656 | $453.0K | 0.00% | +88+1.9% | Added |
| FORA Capital, LLC | 4,876 | $475.0K | 0.09% | +4,876 | New |
| Maryland State Retirement & Pension System | 4,800 | $482.0K | 0.02% | 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 |
| Legal Advantage Investments, Inc. | 5,000 | $487.0K | 0.33% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 5,095 | $496.0K | 0.00% | +795+18.5% | Added |
| The PNC Financial Services Group, Inc. | 5,162 | $504.0K | 0.00% | −335−6.1% | Reduced |
| Pictet & Cie (Europe) SA | 5,391 | $525.0K | 0.02% | +791+17.2% | Added |
| 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 |
| Occudo Quantitative Strategies LP | 5,619 | $547.0K | 0.08% | −2,394−29.9% | Reduced |
| Columbia Asset Management | 5,785 | $563.0K | 0.13% | −1,030−15.1% | Reduced |
| Paloma Partners Management Co | 5,922 | $577.0K | 0.02% | +1,619+37.6% | 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 |
| Diversified Trust Co | 6,246 | $608.0K | 0.02% | +1,295+26.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 6,310 | $615.0K | 0.00% | 00.0% | Unchanged |
| Sumitomo Mitsui Trust Holdings, Inc. | 6,400 | $623.0K | 0.00% | +6,400 | New |
| APG Asset Management N.V. | 7,700 | $632.0K | 0.00% | +7,700 | New |
| Xponance, Inc. | 6,774 | $660.0K | 0.01% | +1,106+19.5% | Added |
| Bridgefront Capital, LLC | 6,907 | $673.0K | 0.25% | +6,907 | New |
| Cambridge Investment Research Advisors, Inc. | 7,164 | $698.0K | 0.00% | −727−9.2% | Reduced |
| Silvant Capital Management LLC | 7,307 | $712.0K | 0.11% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 7,544 | $735.0K | 0.00% | +1,157+18.1% | Added |
| Greenwood Capital Associates LLC | 7,570 | $737.0K | 0.11% | +87+1.2% | Added |
| Strategic Wealth Partners, Ltd. | 7,982 | $777.0K | 0.25% | +564+7.6% | Added |
| Shelton Capital Management | 8,000 | $779.0K | 0.03% | +8,000 | New |
| Public Employees Retirement Association of Colorado | 8,105 | $789.0K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Services Advisors, Inc. | 8,116 | $790.0K | 0.00% | −637−7.3% | Reduced |
| Engineers Gate Manager LP | 8,224 | $801.0K | 0.05% | −7,618−48.1% | Reduced |
| Oppenheimer & Co Inc | 8,350 | $813.0K | 0.01% | +2,599+45.2% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 8,433 | $821.0K | 0.03% | 00.0% | Unchanged |
| Ausdal Financial Partners, Inc. | 8,510 | $829.0K | 0.13% | +774+10.0% | Added |
| Manchester Capital Management LLC | 8,574 | $835.0K | 0.12% | 00.0% | Unchanged |
| Trexquant Investment LP | 8,688 | $846.0K | 0.07% | −6,851−44.1% | Reduced |
| Roundview Capital LLC | 8,862 | $863.0K | 0.10% | +8,862 | New |
| Edmond de Rothschild Holding S.A. | 8,926 | $870.0K | 0.02% | −1,176−11.6% | Reduced |
| Precept Management LLC | 9,000 | $877.0K | 0.89% | +9,000 | New |
| Capula Management Ltd | 9,226 | $899.0K | 0.16% | +9,226 | New |
| Commonwealth Equity Services, LLC | 9,284 | $904.0K | 0.00% | +2,409+35.0% | Added |
| Weiss Multi-Strategy Advisers LLC | 10,187 | $992.0K | 0.02% | +364+3.7% | Added |
| 1492 Capital Management LLC | 10,663 | $1.04M | 0.54% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 10,851 | $1.06M | 0.04% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 11,100 | $1.08M | 0.01% | −1,600−12.6% | Reduced |
| Cetera Advisor Networks LLC | 11,121 | $1.08M | 0.02% | +11,121 | New |
| Prelude Capital Management, LLC | 11,245 | $1.09M | 0.06% | +11,245 | New |
| Summit Global Investments | 11,300 | $1.10M | 0.07% | +11,300 | New |
| Envestnet Asset Management Inc | 11,324 | $1.10M | 0.00% | +323+2.9% | Added |
| Amalgamated Bank | 11,722 | $1.14M | 0.01% | +874+8.1% | Added |
| Susquehanna Fundamental Investments, LLC | 12,043 | $1.17M | 0.02% | −10,355−46.2% | Reduced |
| Russell Investments Group, Ltd. | 12,338 | $1.20M | 0.00% | −78,491−86.4% | Reduced |
| AlphaCrest Capital Management LLC | 12,456 | $1.21M | 0.05% | +2,256+22.1% | Added |
| Kensington Investment Counsel, LLC | 12,611 | $1.23M | 0.84% | +315+2.6% | Added |
| Banque Pictet & Cie SA | 12,984 | $1.26M | 0.01% | +611+4.9% | Added |
| Davy Global Fund Management Ltd | 13,090 | $1.27M | 0.20% | −649−4.7% | Reduced |
| Tudor Investment Corp Et Al | 13,148 | $1.28M | 0.03% | +5,929+82.1% | Added |
| Guggenheim Capital LLC | 13,161 | $1.28M | 0.01% | −135−1.0% | Reduced |
| Virginia Retirement Systems Et Al | 13,600 | $1.32M | 0.01% | +4,500+49.5% | Added |
| Mercer Global Advisors Inc | 13,878 | $1.35M | 0.01% | +11+0.1% | Added |
| HSBC Holdings PLC | 14,359 | $1.40M | 0.00% | +10,813+304.9% | Added |
| Beacon Investment Advisory Services, Inc. | 14,616 | $1.42M | 0.06% | +1,725+13.4% | Added |
| D. E. Shaw & Co., Inc. | 15,194 | $1.48M | 0.00% | −3,187−17.3% | Reduced |
| HRT Financial LP | 16,189 | $1.58M | 0.01% | +16,189 | New |
| Chartwell Investment Partners, LLC | 16,777 | $1.63M | 0.05% | +156+0.9% | Added |
| Arizona State Retirement System | 16,991 | $1.66M | 0.01% | −209−1.2% | Reduced |
| Sante Capital Fund, LP | 17,083 | $1.66M | 0.69% | +17,083 | New |
| Granite Point Capital Management, L.P. | 17,708 | $1.73M | 0.51% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 18,694 | $1.82M | 0.01% | +2,450+15.1% | Added |
| Raymond James & Associates | 18,747 | $1.83M | 0.00% | +1,366+7.9% | Added |
| LPL Financial LLC | 19,579 | $1.91M | 0.00% | −231−1.2% | Reduced |
| Winton Group Ltd | 19,599 | $1.91M | 0.10% | +10,278+110.3% | Added |
| Bank of Montreal | 19,168 | $1.92M | 0.00% | +256+1.4% | Added |
| Jane Street Group, LLC | 19,845 | $1.93M | 0.00% | +5,774+41.0% | Added |
| Squarepoint Ops LLC | 20,091 | $1.96M | 0.01% | −65,930−76.6% | Reduced |
| Mutual of America Capital Management LLC | 20,637 | $2.01M | 0.02% | −21,403−50.9% | Reduced |
| Principal Financial Group Inc | 21,207 | $2.07M | 0.00% | +1,133+5.6% | Added |
| Treasurer of the State of North Carolina | 21,240 | $2.07M | 0.01% | −960−4.3% | Reduced |
| Mirabella Financial Services LLP | 21,853 | $2.13M | 0.41% | +7,489+52.1% | Added |
| Stifel Financial Corp | 22,379 | $2.18M | 0.00% | −292−1.3% | Reduced |
| BNP Paribas Arbitrage, SA | 22,726 | $2.21M | 0.00% | −71,465−75.9% | Reduced |
| Schonfeld Strategic Advisors LLC | 22,889 | $2.23M | 0.02% | +22,889 | New |
| HighMark Wealth Management LLC | 23,603 | $2.30M | 1.69% | +34+0.1% | Added |
| Essex Investment Management Co LLC | 24,332 | $2.37M | 0.28% | −2,116−8.0% | Reduced |
| Bridge City Capital, LLC | 24,484 | $2.38M | 0.81% | −810−3.2% | Reduced |
| Crown Advisors Management, Inc. | 25,000 | $2.44M | 1.74% | 00.0% | Unchanged |
| Spouting Rock Asset Management, LLC | 28,636 | $2.79M | 0.86% | +2,917+11.3% | Added |
| Alliancebernstein L.P. | 30,896 | $3.01M | 0.00% | −1,341−4.2% | Reduced |
| Sectoral Asset Management Inc | 32,100 | $3.13M | 0.25% | −3,000−8.5% | Reduced |
| Prudential Financial Inc | 33,496 | $3.26M | 0.00% | +5,454+19.4% | Added |
| Algert Global LLC | 34,080 | $3.32M | 1.12% | +19,866+139.8% | Added |
| Renaissance Technologies LLC | 34,427 | $3.35M | 0.00% | −136,700−79.9% | Reduced |
| Royal Bank of Canada | 36,370 | $3.54M | 0.00% | −12,910−26.2% | Reduced |
| Capital International Ltd | 36,690 | $3.57M | 0.20% | −400−1.1% | Reduced |
| Public Employees Retirement System of Ohio | 37,419 | $3.65M | 0.01% | +3,544+10.5% | Added |
| Two Sigma Advisers, LP | 37,825 | $3.68M | 0.01% | −121,863−76.3% | Reduced |
| Landscape Capital Management, L.L.C. | 38,336 | $3.73M | 0.46% | +2,012+5.5% | Added |
| State of New Jersey Common Pension Fund D | 38,375 | $3.74M | 0.01% | +963+2.6% | Added |