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 |
|---|---|---|---|---|---|
| BlackRock Inc. | 6,478,638 | $975.2M | 0.02% | +672,004+11.6% | Added |
| Vanguard Group Inc | 6,160,147 | $927.2M | 0.02% | +109,088+1.8% | Added |
| FMR LLC | 5,622,984 | $846.4M | 0.06% | −223,916−3.8% | Reduced |
| Capital World Investors | 3,427,129 | $515.9M | 0.08% | +133,133+4.0% | Added |
| Jackson Square Partners, LLC | 2,504,346 | $377.0M | 3.17% | −1,067,292−29.9% | Reduced |
| Invesco Ltd. | 1,942,971 | $292.5M | 0.07% | +205,453+11.8% | Added |
| State Street Corp | 1,648,252 | $248.1M | 0.01% | +35,825+2.2% | Added |
| Champlain Investment Partners, LLC | 1,486,513 | $223.8M | 1.01% | −7,325−0.5% | Reduced |
| Federated Hermes, Inc. | 1,199,704 | $180.6M | 0.34% | +40,966+3.5% | Added |
| Brown Capital Management LLC | 1,188,648 | $178.9M | 1.48% | −35,118−2.9% | Reduced |
| RTW Investments, LP | 1,160,734 | $174.7M | 2.55% | 00.0% | Unchanged |
| Macquarie Group Ltd | 959,029 | $144.4M | 0.12% | +8,649+0.9% | Added |
| Bellevue Group AG | 949,257 | $142.9M | 1.47% | −85,262−8.2% | Reduced |
| Goldman Sachs Group Inc | 929,291 | $139.9M | 0.03% | −53,455−5.4% | Reduced |
| Geode Capital Management, LLC | 823,798 | $124.0M | 0.01% | +22,743+2.8% | Added |
| Stephens Investment Management Group LLC | 819,615 | $123.4M | 1.59% | −731−0.1% | Reduced |
| Citadel Advisors LLC | 808,129 | $121.6M | 0.13% | +585,013+262.2% | Added |
| Gilder Gagnon Howe & Co LLC | 768,906 | $115.7M | 0.66% | −12,100−1.5% | Reduced |
| Wellington Management Group LLP | 708,615 | $106.7M | 0.02% | +249,976+54.5% | Added |
| Janus Henderson Group PLC | 649,327 | $97.7M | 0.04% | −197,591−23.3% | Reduced |
| Price T Rowe Associates Inc | 623,811 | $93.9M | 0.01% | −26,494−4.1% | Reduced |
| Bank of New York Mellon Corp | 609,911 | $91.8M | 0.02% | +29,216+5.0% | Added |
| Norges Bank | 589,388 | $88.7M | 0.02% | +3,238+0.6% | Added |
| SEI Investments Co | 561,063 | $84.5M | 0.16% | −151,402−21.3% | Reduced |
| Northern Trust Corp | 492,943 | $74.2M | 0.01% | +3,388+0.7% | Added |
| Charles Schwab Investment Management Inc | 491,262 | $73.9M | 0.02% | +13,799+2.9% | Added |
| Lord, Abbett & Co. LLC | 479,965 | $72.2M | 0.16% | +479,965 | New |
| Credit Suisse AG | 476,477 | $71.7M | 0.06% | −561,069−54.1% | Reduced |
| Morgan Stanley | 476,296 | $71.7M | 0.01% | +166,438+53.7% | Added |
| Chicago Capital, LLC | 458,614 | $69.0M | 2.57% | +5,341+1.2% | Added |
| First Light Asset Management, LLC | 411,784 | $62.0M | 4.44% | −67,402−14.1% | Reduced |
| UBS Group AG | 404,914 | $60.9M | 0.02% | +119,854+42.0% | Added |
| TimesSquare Capital Management, LLC | 369,645 | $55.6M | 0.49% | −60,700−14.1% | Reduced |
| Voya Investment Management LLC | 359,434 | $54.1M | 0.10% | −90,355−20.1% | Reduced |
| Baillie Gifford & Co | 356,952 | $53.7M | 0.03% | +9,900+2.9% | Added |
| Wasatch Advisors Inc | 339,422 | $51.1M | 0.21% | −52,879−13.5% | Reduced |
| Nuveen Asset Management, LLC | 331,469 | $49.9M | 0.01% | +5,838+1.8% | Added |
| Westfield Capital Management Co LP | 321,990 | $48.5M | 0.29% | −9,037−2.7% | Reduced |
| AXA S.A. | 311,809 | $46.9M | 0.12% | +24,822+8.6% | Added |
| Consonance Capital Management LP | 300,664 | $45.3M | 29.52% | −186,663−38.3% | Reduced |
| Hood River Capital Management LLC | 279,895 | $42.1M | 1.26% | +279,895 | New |
| Jennison Associates LLC | 277,581 | $41.8M | 0.03% | −283,302−50.5% | Reduced |
| Principal Financial Group Inc | 267,416 | $40.3M | 0.02% | +35,586+15.4% | Added |
| Pictet Asset Management SA | 266,144 | $40.1M | 0.04% | −22,266−7.7% | Reduced |
| American Century Companies Inc | 263,688 | $39.7M | 0.03% | +47,473+22.0% | Added |
| Eaton Vance Management | 263,249 | $39.6M | 0.05% | −175,781−40.0% | Reduced |
| New York State Common Retirement Fund | 259,309 | $39.0M | 0.04% | +5,355+2.1% | Added |
| Victory Capital Management Inc | 257,261 | $38.7M | 0.04% | +93,062+56.7% | Added |
| Millennium Management LLC | 213,654 | $32.2M | 0.04% | +44,192+26.1% | Added |
| First Trust Advisors LP | 200,075 | $30.1M | 0.03% | +175,623+718.2% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 193,161 | $29.1M | 1.86% | −63,695−24.8% | Reduced |
| Ameriprise Financial Inc | 191,467 | $29.1M | 0.01% | +20,335+11.9% | Added |
| Balyasny Asset Management LLC | 171,478 | $25.8M | 0.11% | +171,478 | New |
| Nomura Holdings Inc | 168,264 | $25.4M | 0.15% | −19,137−10.2% | Reduced |
| Rhumbline Advisers | 162,957 | $24.5M | 0.03% | +2,015+1.3% | Added |
| Man Group plc | 159,406 | $24.0M | 0.08% | −91,540−36.5% | Reduced |
| Nicholas Company, Inc. | 156,698 | $23.6M | 0.38% | −14,065−8.2% | Reduced |
| Redwood Investments, LLC | 156,693 | $23.6M | 1.86% | −2,306−1.5% | Reduced |
| CIBC Private Wealth Group, LLC | 154,779 | $23.3M | 0.05% | +14,968+10.7% | Added |
| Kingdon Capital Management, L.L.C. | 150,000 | $22.6M | 3.38% | +39,000+35.1% | Added |
| Fred Alger Management, LLC | 149,340 | $22.5M | 0.06% | −4,894−3.2% | Reduced |
| Swiss National Bank | 138,800 | $20.9M | 0.01% | +400+0.3% | Added |
| Point72 Asset Management, L.P. | 134,669 | $20.3M | 0.09% | −221,998−62.2% | Reduced |
| California Public Employees Retirement System | 130,512 | $19.6M | 0.01% | +6,467+5.2% | Added |
| Intrinsic Edge Capital Management LLC | 126,931 | $19.1M | 1.44% | +58,989+86.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 124,821 | $18.8M | 0.04% | −178,990−58.9% | Reduced |
| Bank of America Corp | 121,765 | $18.3M | 0.00% | +12,003+10.9% | Added |
| Squarepoint Ops LLC | 111,363 | $16.8M | 0.08% | +28,957+35.1% | Added |
| Allspring Global Investments Holdings, LLC | 110,670 | $16.7M | 0.02% | +110,670 | New |
| Parametric Portfolio Associates LLC | 110,403 | $16.6M | 0.01% | +18,567+20.2% | Added |
| Dimensional Fund Advisors LP | 110,050 | $16.6M | 0.01% | +7,980+7.8% | Added |
| American International Group, Inc. | 107,905 | $16.2M | 0.08% | −1,111−1.0% | Reduced |
| Amundi | 129,529 | $16.1M | 0.01% | −274,033−67.9% | Reduced |
| Deutsche Bank AG | 102,679 | $15.5M | 0.01% | −43,651−29.8% | Reduced |
| Barclays PLC | 102,457 | $15.4M | 0.01% | −23,876−18.9% | Reduced |
| 1832 Asset Management L.P. | 99,800 | $15.3M | 0.03% | +39,800+66.3% | Added |
| Osterweis Capital Management Inc | 101,680 | $15.3M | 0.77% | +15,995+18.7% | Added |
| Alliancebernstein L.P. | 98,230 | $14.8M | 0.01% | +824+0.8% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 96,805 | $14.7M | 0.08% | +732+0.8% | Added |
| WCM Investment Management, LLC | 96,312 | $14.5M | 0.03% | −7,415−7.1% | Reduced |
| Legal & General Group Plc | 96,110 | $14.5M | 0.00% | −976−1.0% | Reduced |
| JPMorgan Chase & Co | 94,937 | $14.3M | 0.00% | −53,806−36.2% | Reduced |
| Banque Pictet & Cie SA | 90,770 | $13.7M | 0.10% | +76,085+518.1% | Added |
| Silvercrest Asset Management Group LLC | 90,675 | $13.6M | 0.09% | +547+0.6% | Added |
| UBS Asset Management Americas Inc | 89,898 | $13.5M | 0.01% | −4,889−5.2% | Reduced |
| KBC Group NV | 89,852 | $13.5M | 0.04% | +28,695+46.9% | Added |
| Wells Fargo & Company | 87,967 | $13.2M | 0.00% | −87,926−50.0% | Reduced |
| California State Teachers Retirement System | 87,279 | $13.1M | 0.02% | −17,253−16.5% | Reduced |
| Essex Investment Management Co LLC | 86,697 | $13.1M | 1.49% | +12,109+16.2% | Added |
| Retirement Systems of Alabama | 83,195 | $12.5M | 0.04% | +1,586+1.9% | Added |
| Cubist Systematic Strategies, LLC | 80,523 | $12.1M | 0.12% | −119−0.1% | Reduced |
| Marshall Wace, LLP | 80,376 | $12.1M | 0.02% | +64,572+408.6% | Added |
| Mutual of America Capital Management LLC | 77,016 | $11.6M | 0.12% | +1,085+1.4% | Added |
| British Columbia Investment Management Corp | 76,800 | $11.6M | 0.06% | −23,200−23.2% | Reduced |
| Lisanti Capital Growth, LLC | 75,500 | $11.4M | 1.64% | +22,600+42.7% | Added |
| State Board of Administration of Florida Retirement System | 74,141 | $11.2M | 0.02% | −54−0.1% | Reduced |
| Castleark Management LLC | 73,800 | $11.1M | 0.41% | +42,810+138.1% | Added |
| Manufacturers Life Insurance Company, The | 71,710 | $10.8M | 0.01% | −819−1.1% | Reduced |
| BNP Paribas Arbitrage, SA | 70,326 | $10.6M | 0.03% | +63,873+989.8% | Added |
| Bridgewater Associates, LP | 69,860 | $10.5M | 0.06% | +12,252+21.3% | Added |