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 |
|---|---|---|---|---|---|
| HighTower Advisors, LLC | 4,656 | $453.0K | 0.00% | +88+1.9% | Added |
| 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 |
| Wolverine Trading, LLC | 4,412 | $442.0K | 0.01% | −3,451−43.9% | Reduced |
| Walleye Trading LLC | 4,524 | $441.0K | 0.01% | +4,524 | New |
| Bank Julius Baer & Co. Ltd, Zurich | 4,405 | $429.0K | 0.00% | +5+0.1% | Added |
| DuPont Capital Management Corp | 4,368 | $425.0K | 0.01% | +2,693+160.8% | Added |
| Newbridge Financial Services Group, Inc. | 4,350 | $424.0K | 0.26% | −6,926−61.4% | Reduced |
| Echo Street Capital Management LLC | 4,217 | $411.0K | 0.00% | +4,217 | New |
| Coe Capital Management, LLC | 4,164 | $406.0K | 0.38% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 4,047 | $394.2K | 0.01% | −5−0.1% | Reduced |
| First Manhattan Co | 4,000 | $389.0K | 0.00% | 00.0% | Unchanged |
| Verition Fund Management LLC | 3,967 | $386.0K | 0.01% | +1,083+37.6% | Added |
| Sigma Planning Corp | 3,907 | $381.0K | 0.01% | −234−5.7% | Reduced |
| Fox Run Management, L.L.C. | 3,901 | $380.0K | 0.35% | +3,901 | New |
| Dynamic Technology Lab Private Ltd | 3,870 | $377.0K | 0.04% | +3,870 | New |
| Captrust Financial Advisors | 3,811 | $371.0K | 0.00% | −413−9.8% | Reduced |
| Capital International Sarl | 3,726 | $363.0K | 0.03% | +185+5.2% | Added |
| Connacht Asset Management LP | 3,708 | $361.0K | 0.32% | +3,708 | New |
| NN Investment Partners Holdings N.V. | 3,700 | $360.0K | 0.00% | −3,612−49.4% | Reduced |
| Bluestein R H & Co | 3,513 | $342.0K | 0.01% | 00.0% | Unchanged |
| Great West Life Assurance Co | 3,454 | $336.0K | 0.00% | −486−12.3% | Reduced |
| Canada Pension Plan Investment Board | 3,307 | $322.0K | 0.00% | −796−19.4% | Reduced |
| Utah Retirement Systems | 3,200 | $312.0K | 0.00% | +100+3.2% | Added |
| Creative Planning | 3,171 | $309.0K | 0.00% | +3,171 | New |
| Harbor Financial Services, LLC | 3,153 | $307.0K | 0.13% | −519−14.1% | Reduced |
| Campbell & CO Investment Adviser LLC | 3,100 | $302.0K | 0.13% | +3,100 | New |
| Weld Capital Management LLC | 2,999 | $292.0K | 0.30% | +2,999 | New |
| XTX Topco Ltd | 2,851 | $278.0K | 0.09% | +2,851 | New |
| First Mercantile Trust Co | 2,829 | $276.0K | 0.03% | −103−3.5% | Reduced |
| Northwestern Mutual Wealth Management Co | 2,800 | $273.0K | 0.00% | +141+5.3% | Added |
| Banque Cantonale Vaudoise | 2,757 | $268.0K | 0.01% | −79−2.8% | Reduced |
| Cornerstone Investment Partners, LLC | 2,645 | $258.0K | 0.01% | +2,645 | New |
| Laurel Wealth Advisors, Inc. | 2,632 | $256.0K | 0.03% | +2,632 | New |
| Gotham Asset Management, LLC | 2,566 | $250.0K | 0.01% | +2,566 | New |
| Boothbay Fund Management, LLC | 2,536 | $247.0K | 0.01% | −1,918−43.1% | Reduced |
| MML Investors Services, LLC | 2,412 | $235.0K | 0.00% | +2,412 | New |
| Mount Yale Investment Advisors, LLC | 2,385 | $232.0K | 0.03% | −29−1.2% | Reduced |
| Thoroughbred Financial Services, LLC | 2,323 | $226.0K | 0.06% | −110−4.5% | Reduced |
| CIBC Asset Management Inc | 2,281 | $222.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 2,265 | $221.0K | 0.00% | +2,265 | New |
| Appleton Partners Inc | 2,225 | $217.0K | 0.02% | +2,225 | New |
| Los Angeles Capital Management LLC | 2,154 | $210.0K | 0.00% | −138−6.0% | Reduced |
| Gsa Capital Partners LLP | 2,092 | $204.0K | 0.02% | +2,092 | New |
| Global Retirement Partners, LLC | 1,684 | $164.0K | 0.02% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,605 | $156.0K | 0.00% | −2,559−61.5% | Reduced |
| Aubrey Capital Management Ltd | 1,600 | $155.8K | 0.05% | +1,600 | New |
| Point72 Hong Kong Ltd | 1,320 | $129.0K | 0.01% | −724−35.4% | Reduced |
| Panagora Asset Management Inc | 1,281 | $125.0K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 1,258 | $123.0K | 0.00% | −30−2.3% | Reduced |
| Harbour Investments, Inc. | 1,253 | $122.0K | 0.00% | 00.0% | Unchanged |
| Arkadios Wealth Advisors | 1,131 | $110.0K | 0.01% | 00.0% | Unchanged |
| GPS Wealth Strategies Group, LLC | 1,107 | $108.0K | 0.03% | +451+68.8% | Added |
| Salem Investment Counselors Inc | 1,000 | $97.0K | 0.01% | 00.0% | Unchanged |
| FourThought Financial, LLC | 1,000 | $97.0K | 0.01% | +1,000 | New |
| Lazard Asset Management LLC | 923 | $89.0K | 0.00% | +48+5.5% | Added |
| Leonteq Securities AG | 800 | $77.9K | 0.01% | 00.0% | Unchanged |
| FinTrust Capital Advisors, LLC | 735 | $72.0K | 0.02% | +210+40.0% | Added |
| Compagnie Lombard Odier SCmA | 670 | $65.0K | 0.00% | −228,331−99.7% | Reduced |
| IFP Advisors, Inc | 561 | $55.0K | 0.00% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 515 | $50.0K | 0.00% | +476+1,220.5% | Added |
| Steward Partners Investment Advisory, LLC | 420 | $41.0K | 0.00% | −300−41.7% | Reduced |
| Acadian Asset Management LLC | 372 | $36.0K | 0.00% | +372 | New |
| Cutler Group LP | 325 | $31.0K | 0.00% | +325 | New |
| Hoover Financial Advisors, Inc. | 262 | $26.0K | 0.00% | 00.0% | Unchanged |
| Kistler-Tiffany Companies, LLC | 245 | $24.0K | 0.01% | −35−12.5% | Reduced |
| Patriot Financial Group Insurance Agency, LLC | 242 | $24.0K | 0.00% | +42+21.0% | Added |
| Toth Financial Advisory Corp | 225 | $22.0K | 0.00% | +225 | New |
| Creative Financial Designs Inc | 193 | $19.0K | 0.00% | 00.0% | Unchanged |
| American Portfolios Advisors | 189 | $18.4K | 0.00% | +36+23.5% | Added |
| TCI Wealth Advisors, Inc. | 179 | $17.0K | 0.00% | +63+54.3% | Added |
| CWM, LLC | 166 | $16.0K | 0.00% | 00.0% | Unchanged |
| Berman Capital Advisors, LLC | 170 | $16.0K | 0.00% | +116+214.8% | Added |
| Nisa Investment Advisors, LLC | 150 | $15.0K | 0.00% | 00.0% | Unchanged |
| Evolution Wealth Advisors, LLC | 130 | $13.0K | 0.00% | +130 | New |
| Ellis Investment Partners, LLC | 130 | $12.0K | 0.00% | 00.0% | Unchanged |
| Front Row Advisors LLC | 100 | $11.0K | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 98 | $10.0K | 0.00% | −50−33.8% | Reduced |
| Rockefeller Capital Management L.P. | 100 | $9.00K | 0.00% | −4−3.8% | Reduced |
| Montag A & Associates Inc | 80 | $8.00K | 0.00% | −105−56.8% | Reduced |
| First Horizon Advisors, Inc. | 82 | $8.00K | 0.00% | +17+26.2% | Added |
| Stephens Inc | 67 | $7.00K | 0.00% | −16−19.3% | Reduced |
| Wolverine Asset Management LLC | 77 | $7.00K | 0.00% | +77 | New |
| Parkside Financial Bank & Trust | 70 | $7.00K | 0.00% | +70 | New |
| TD Private Client Wealth LLC | 66 | $6.43K | 0.00% | +66 | New |
| Stonebridge Financial Planning Group, LLC | 48 | $5.00K | 0.00% | 00.0% | Unchanged |
| AlphaMark Advisors, LLC | 40 | $4.00K | 0.00% | 00.0% | Unchanged |
| Focused Wealth Management, Inc | 40 | $4.00K | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 42 | $4.00K | 0.00% | +42 | New |
| Castleview Partners, LLC | 40 | $4.00K | 0.00% | +40 | New |
| Wagner Wealth Management, LLC | 35 | $3.00K | 0.00% | 00.0% | Unchanged |
| NEXT Financial Group, Inc | 7 | $1.00K | 0.00% | 00.0% | Unchanged |
| BerganKDV Wealth Management, LLC | 14 | $1.00K | 0.00% | 00.0% | Unchanged |
| Sterling Investment Advisors, Ltd. | 7 | $1.00K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 20 | $1.00K | 0.00% | 00.0% | Unchanged |
| Evermay Wealth Management LLC | 9 | $1.00K | 0.00% | +9 | New |
| Eubel Brady & Suttman Asset Management Inc | 10 | $1.00K | 0.00% | +10 | New |
| CVA Family Office, LLC | 15 | $1.00K | 0.00% | +15 | New |
| Bartlett & Co. Wealth Management LLC | 3 | $292 | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. LLC | 3 | $0 | 0.00% | 00.0% | Unchanged |