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