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, Q4 2021
Institutional positions in Tandem Diabetes Care Inc as of Dec 31, 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
- 388
- +56 vs. Q3 2021
- Shares held
- 60.4M
- +143.0K (+0.2%) vs. Q3 2021
- Total value
- $9.09B
- +$1.89B (+26.3%) vs. Q3 2021
- New holders
- 87
- 140 more added
- Sold out
- 31
- 116 more reduced
6 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wells Fargo & Company | 87,967 | $13.2M | 0.00% | −87,926−50.0% | Reduced |
| KBC Group NV | 89,852 | $13.5M | 0.04% | +28,695+46.9% | Added |
| UBS Asset Management Americas Inc | 89,898 | $13.5M | 0.01% | −4,889−5.2% | Reduced |
| Silvercrest Asset Management Group LLC | 90,675 | $13.6M | 0.09% | +547+0.6% | Added |
| Banque Pictet & Cie SA | 90,770 | $13.7M | 0.10% | +76,085+518.1% | Added |
| JPMorgan Chase & Co | 94,937 | $14.3M | 0.00% | −53,806−36.2% | Reduced |
| Legal & General Group Plc | 96,110 | $14.5M | 0.00% | −976−1.0% | Reduced |
| WCM Investment Management, LLC | 96,312 | $14.5M | 0.03% | −7,415−7.1% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 96,805 | $14.7M | 0.08% | +732+0.8% | Added |
| Alliancebernstein L.P. | 98,230 | $14.8M | 0.01% | +824+0.8% | Added |
| Osterweis Capital Management Inc | 101,680 | $15.3M | 0.77% | +15,995+18.7% | Added |
| 1832 Asset Management L.P. | 99,800 | $15.3M | 0.03% | +39,800+66.3% | Added |
| Barclays PLC | 102,457 | $15.4M | 0.01% | −23,876−18.9% | Reduced |
| Deutsche Bank AG | 102,679 | $15.5M | 0.01% | −43,651−29.8% | Reduced |
| Amundi | 129,529 | $16.1M | 0.01% | −274,033−67.9% | Reduced |
| American International Group, Inc. | 107,905 | $16.2M | 0.08% | −1,111−1.0% | Reduced |
| Dimensional Fund Advisors LP | 110,050 | $16.6M | 0.01% | +7,980+7.8% | Added |
| Parametric Portfolio Associates LLC | 110,403 | $16.6M | 0.01% | +18,567+20.2% | Added |
| Allspring Global Investments Holdings, LLC | 110,670 | $16.7M | 0.02% | +110,670 | New |
| Squarepoint Ops LLC | 111,363 | $16.8M | 0.08% | +28,957+35.1% | Added |
| Bank of America Corp | 121,765 | $18.3M | 0.00% | +12,003+10.9% | Added |
| Mirae Asset Global Investments Co., Ltd. | 124,821 | $18.8M | 0.04% | −178,990−58.9% | Reduced |
| Intrinsic Edge Capital Management LLC | 126,931 | $19.1M | 1.44% | +58,989+86.8% | Added |
| California Public Employees Retirement System | 130,512 | $19.6M | 0.01% | +6,467+5.2% | Added |
| Point72 Asset Management, L.P. | 134,669 | $20.3M | 0.09% | −221,998−62.2% | Reduced |
| Swiss National Bank | 138,800 | $20.9M | 0.01% | +400+0.3% | Added |
| Fred Alger Management, LLC | 149,340 | $22.5M | 0.06% | −4,894−3.2% | Reduced |
| Kingdon Capital Management, L.L.C. | 150,000 | $22.6M | 3.38% | +39,000+35.1% | Added |
| CIBC Private Wealth Group, LLC | 154,779 | $23.3M | 0.05% | +14,968+10.7% | Added |
| Redwood Investments, LLC | 156,693 | $23.6M | 1.86% | −2,306−1.5% | Reduced |
| Nicholas Company, Inc. | 156,698 | $23.6M | 0.38% | −14,065−8.2% | Reduced |
| Man Group plc | 159,406 | $24.0M | 0.08% | −91,540−36.5% | Reduced |
| Rhumbline Advisers | 162,957 | $24.5M | 0.03% | +2,015+1.3% | Added |
| Nomura Holdings Inc | 168,264 | $25.4M | 0.15% | −19,137−10.2% | Reduced |
| Balyasny Asset Management LLC | 171,478 | $25.8M | 0.11% | +171,478 | New |
| Ameriprise Financial Inc | 191,467 | $29.1M | 0.01% | +20,335+11.9% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 193,161 | $29.1M | 1.86% | −63,695−24.8% | Reduced |
| First Trust Advisors LP | 200,075 | $30.1M | 0.03% | +175,623+718.2% | Added |
| Millennium Management LLC | 213,654 | $32.2M | 0.04% | +44,192+26.1% | Added |
| Victory Capital Management Inc | 257,261 | $38.7M | 0.04% | +93,062+56.7% | Added |
| New York State Common Retirement Fund | 259,309 | $39.0M | 0.04% | +5,355+2.1% | Added |
| Eaton Vance Management | 263,249 | $39.6M | 0.05% | −175,781−40.0% | Reduced |
| American Century Companies Inc | 263,688 | $39.7M | 0.03% | +47,473+22.0% | Added |
| Pictet Asset Management SA | 266,144 | $40.1M | 0.04% | −22,266−7.7% | Reduced |
| Principal Financial Group Inc | 267,416 | $40.3M | 0.02% | +35,586+15.4% | Added |
| Jennison Associates LLC | 277,581 | $41.8M | 0.03% | −283,302−50.5% | Reduced |
| Hood River Capital Management LLC | 279,895 | $42.1M | 1.26% | +279,895 | New |
| Consonance Capital Management LP | 300,664 | $45.3M | 29.52% | −186,663−38.3% | Reduced |
| AXA S.A. | 311,809 | $46.9M | 0.12% | +24,822+8.6% | Added |
| Westfield Capital Management Co LP | 321,990 | $48.5M | 0.29% | −9,037−2.7% | Reduced |
| Nuveen Asset Management, LLC | 331,469 | $49.9M | 0.01% | +5,838+1.8% | Added |
| Wasatch Advisors Inc | 339,422 | $51.1M | 0.21% | −52,879−13.5% | Reduced |
| Baillie Gifford & Co | 356,952 | $53.7M | 0.03% | +9,900+2.9% | Added |
| Voya Investment Management LLC | 359,434 | $54.1M | 0.10% | −90,355−20.1% | Reduced |
| TimesSquare Capital Management, LLC | 369,645 | $55.6M | 0.49% | −60,700−14.1% | Reduced |
| UBS Group AG | 404,914 | $60.9M | 0.02% | +119,854+42.0% | Added |
| First Light Asset Management, LLC | 411,784 | $62.0M | 4.44% | −67,402−14.1% | Reduced |
| Chicago Capital, LLC | 458,614 | $69.0M | 2.57% | +5,341+1.2% | Added |
| Morgan Stanley | 476,296 | $71.7M | 0.01% | +166,438+53.7% | Added |
| Credit Suisse AG | 476,477 | $71.7M | 0.06% | −561,069−54.1% | Reduced |
| Lord, Abbett & Co. LLC | 479,965 | $72.2M | 0.16% | +479,965 | New |
| Charles Schwab Investment Management Inc | 491,262 | $73.9M | 0.02% | +13,799+2.9% | Added |
| Northern Trust Corp | 492,943 | $74.2M | 0.01% | +3,388+0.7% | Added |
| SEI Investments Co | 561,063 | $84.5M | 0.16% | −151,402−21.3% | Reduced |
| Norges Bank | 589,388 | $88.7M | 0.02% | +3,238+0.6% | Added |
| Bank of New York Mellon Corp | 609,911 | $91.8M | 0.02% | +29,216+5.0% | Added |
| Price T Rowe Associates Inc | 623,811 | $93.9M | 0.01% | −26,494−4.1% | Reduced |
| Janus Henderson Group PLC | 649,327 | $97.7M | 0.04% | −197,591−23.3% | Reduced |
| Wellington Management Group LLP | 708,615 | $106.7M | 0.02% | +249,976+54.5% | Added |
| Gilder Gagnon Howe & Co LLC | 768,906 | $115.7M | 0.66% | −12,100−1.5% | Reduced |
| Citadel Advisors LLC | 808,129 | $121.6M | 0.13% | +585,013+262.2% | Added |
| Stephens Investment Management Group LLC | 819,615 | $123.4M | 1.59% | −731−0.1% | Reduced |
| Geode Capital Management, LLC | 823,798 | $124.0M | 0.01% | +22,743+2.8% | Added |
| Goldman Sachs Group Inc | 929,291 | $139.9M | 0.03% | −53,455−5.4% | Reduced |
| Bellevue Group AG | 949,257 | $142.9M | 1.47% | −85,262−8.2% | Reduced |
| Macquarie Group Ltd | 959,029 | $144.4M | 0.12% | +8,649+0.9% | Added |
| RTW Investments, LP | 1,160,734 | $174.7M | 2.55% | 00.0% | Unchanged |
| Brown Capital Management LLC | 1,188,648 | $178.9M | 1.48% | −35,118−2.9% | Reduced |
| Federated Hermes, Inc. | 1,199,704 | $180.6M | 0.34% | +40,966+3.5% | Added |
| Champlain Investment Partners, LLC | 1,486,513 | $223.8M | 1.01% | −7,325−0.5% | Reduced |
| State Street Corp | 1,648,252 | $248.1M | 0.01% | +35,825+2.2% | Added |
| Invesco Ltd. | 1,942,971 | $292.5M | 0.07% | +205,453+11.8% | Added |
| Jackson Square Partners, LLC | 2,504,346 | $377.0M | 3.17% | −1,067,292−29.9% | Reduced |
| Capital World Investors | 3,427,129 | $515.9M | 0.08% | +133,133+4.0% | Added |
| FMR LLC | 5,622,984 | $846.4M | 0.06% | −223,916−3.8% | Reduced |
| Vanguard Group Inc | 6,160,147 | $927.2M | 0.02% | +109,088+1.8% | Added |
| BlackRock Inc. | 6,478,638 | $975.2M | 0.02% | +672,004+11.6% | Added |
| Sofos Investments, Inc. | 3,322 | – | – | +3,322 | New |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −118,993−100.0% | Sold out |
| Pier Capital, LLC | 0 | $0 | 0.00% | −60,422−100.0% | Sold out |
| CastleArk Alternatives, LLC | 0 | $0 | 0.00% | −30,990−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −17,200−100.0% | Sold out |
| Seven Eight Capital, LP | 0 | $0 | 0.00% | −13,514−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −9,543−100.0% | Sold out |
| Summit Global Investments | 0 | $0 | 0.00% | −7,700−100.0% | Sold out |
| Legal Advantage Investments, Inc. | 0 | $0 | 0.00% | −6,000−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −5,041−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −4,900−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −3,980−100.0% | Sold out |
| O'Neil Global Advisors, Inc. | 0 | $0 | 0.00% | −3,825−100.0% | Sold out |