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 2023
Institutional positions in Tandem Diabetes Care Inc as of Dec 31, 2023. 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
- 268
- +43 vs. Q3 2023
- Shares held
- 70.9M
- +1.30M (+1.9%) vs. Q3 2023
- Total value
- $2.10B
- +$651.3M (+45.1%) vs. Q3 2023
- New holders
- 75
- 84 more added
- Sold out
- 32
- 86 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Balyasny Asset Management LLC | 106,409 | $3.15M | 0.01% | +106,409 | New |
| Prudential Financial Inc | 108,963 | $3.22M | 0.00% | −20,761−16.0% | Reduced |
| Susquehanna International Group, LLP | 113,776 | $3.37M | 0.01% | −232,614−67.2% | Reduced |
| State of Wisconsin Investment Board | 116,008 | $3.43M | 0.01% | +31,393+37.1% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 118,221 | $3.50M | 0.02% | 00.0% | Unchanged |
| Swiss National Bank | 128,200 | $3.79M | 0.00% | −13,800−9.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 130,858 | $3.90M | 0.01% | −23,457−15.2% | Reduced |
| Public Sector Pension Investment Board | 135,050 | $3.99M | 0.03% | +54,614+67.9% | Added |
| Weiss Multi-Strategy Advisers LLC | 142,024 | $4.20M | 0.11% | +111,254+361.6% | Added |
| Alliancebernstein L.P. | 143,718 | $4.25M | 0.00% | −221,414−60.6% | Reduced |
| Nuveen Asset Management, LLC | 145,101 | $4.29M | 0.00% | −11,047−7.1% | Reduced |
| Frontier Capital Management Co LLC | 145,909 | $4.32M | 0.04% | +690.0% | Added |
| Trexquant Investment LP | 161,954 | $4.79M | 0.11% | +99,631+159.9% | Added |
| Rhumbline Advisers | 172,081 | $5.09M | 0.01% | −1,175−0.7% | Reduced |
| Legal & General Group Plc | 181,367 | $5.36M | 0.00% | −1,375−0.8% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 184,322 | $5.45M | 0.03% | +58,981+47.1% | Added |
| Envestnet Asset Management Inc | 185,140 | $5.48M | 0.00% | +166,907+915.4% | Added |
| Jane Street Group, LLC | 190,691 | $5.64M | 0.01% | +143,982+308.3% | Added |
| Kingdon Capital Management, L.L.C. | 194,200 | $5.74M | 1.09% | +194,200 | New |
| Banque Pictet & Cie SA | 198,326 | $5.87M | 0.07% | +87,807+79.4% | Added |
| DAFNA Capital Management LLC | 220,708 | $6.53M | 1.56% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 225,725 | $6.68M | 0.00% | +144,910+179.3% | Added |
| Tudor Investment Corp Et Al | 231,738 | $6.85M | 0.09% | +16,356+7.6% | Added |
| KBC Group NV | 239,944 | $7.10M | 0.03% | +110,630+85.6% | Added |
| Invenomic Capital Management LP | 241,006 | $7.13M | 0.38% | −31,438−11.5% | Reduced |
| Invesco Ltd. | 245,687 | $7.27M | 0.00% | −28,147−10.3% | Reduced |
| Russell Investments Group, Ltd. | 247,325 | $7.32M | 0.01% | +109,505+79.5% | Added |
| Silvercrest Asset Management Group LLC | 255,251 | $7.55M | 0.05% | +179+0.1% | Added |
| Alberta Investment Management Corp | 262,574 | $7.77M | 0.07% | +20,996+8.7% | Added |
| Baillie Gifford & Co | 262,643 | $7.77M | 0.01% | −1130.0% | Reduced |
| Fred Alger Management, LLC | 302,779 | $8.96M | 0.05% | −22,910−7.0% | Reduced |
| New York State Common Retirement Fund | 315,502 | $9.33M | 0.01% | −684−0.2% | Reduced |
| Ameriprise Financial Inc | 313,554 | $9.35M | 0.00% | +40,675+14.9% | Added |
| Principal Financial Group Inc | 344,349 | $10.2M | 0.01% | −10,803−3.0% | Reduced |
| Northern Trust Corp | 350,824 | $10.4M | 0.00% | −26,065−6.9% | Reduced |
| Marshall Wace, LLP | 351,915 | $10.4M | 0.02% | +172,875+96.6% | Added |
| First Light Asset Management, LLC | 360,243 | $10.7M | 0.86% | −1,080,723−75.0% | Reduced |
| Citadel Advisors LLC | 360,713 | $10.7M | 0.01% | −284,651−44.1% | Reduced |
| Coronation Fund Managers Ltd. | 376,355 | $11.1M | 0.31% | +21,451+6.0% | Added |
| Charles Schwab Investment Management Inc | 396,741 | $11.7M | 0.00% | +29,730+8.1% | Added |
| Bank of New York Mellon Corp | 445,558 | $13.2M | 0.00% | −69,099−13.4% | Reduced |
| Squarepoint Ops LLC | 456,520 | $13.5M | 0.06% | +303,313+198.0% | Added |
| Next Century Growth Investors LLC | 461,495 | $13.7M | 1.33% | +461,495 | New |
| Chicago Capital, LLC | 476,937 | $14.1M | 0.51% | −427,473−47.3% | Reduced |
| Millennium Management LLC | 630,843 | $18.7M | 0.02% | +126,974+25.2% | Added |
| Two Sigma Investments, LP | 701,354 | $20.7M | 0.05% | −79,180−10.1% | Reduced |
| Brown Capital Management LLC | 734,627 | $21.7M | 0.33% | −829,915−53.0% | Reduced |
| Morgan Stanley | 872,165 | $25.8M | 0.00% | +97,522+12.6% | Added |
| Voloridge Investment Management, LLC | 952,562 | $28.2M | 0.11% | −95,401−9.1% | Reduced |
| Stephens Investment Management Group LLC | 962,272 | $28.5M | 0.42% | −26,823−2.7% | Reduced |
| Point72 Asset Management, L.P. | 990,336 | $29.3M | 0.09% | +989,028+75,613.8% | Added |
| Two Sigma Advisers, LP | 1,001,583 | $29.6M | 0.07% | −28,800−2.8% | Reduced |
| Geode Capital Management, LLC | 1,039,687 | $30.8M | 0.00% | +40,376+4.0% | Added |
| Paradice Investment Management LLC | 1,081,886 | $32.0M | 4.02% | −438,179−28.8% | Reduced |
| Capital International Investors | 1,083,561 | $32.1M | 0.01% | −710,626−39.6% | Reduced |
| GW&K Investment Management, LLC | 1,226,758 | $36.3M | 0.34% | +1,226,758 | New |
| Jennison Associates LLC | 1,290,590 | $38.2M | 0.03% | +167,675+14.9% | Added |
| Jacobs Levy Equity Management, Inc | 1,290,967 | $38.2M | 0.19% | +497,479+62.7% | Added |
| Champlain Investment Partners, LLC | 1,529,832 | $45.3M | 0.27% | −86,047−5.3% | Reduced |
| Bellevue Group AG | 1,992,317 | $58.9M | 0.90% | −150,452−7.0% | Reduced |
| State Street Corp | 2,274,566 | $67.3M | 0.00% | +104,722+4.8% | Added |
| Janus Henderson Group PLC | 2,577,742 | $76.2M | 0.05% | −93,489−3.5% | Reduced |
| ArrowMark Colorado Holdings LLC | 2,935,003 | $86.8M | 0.96% | +1,303,459+79.9% | Added |
| FMR LLC | 2,977,274 | $88.1M | 0.01% | −14,793−0.5% | Reduced |
| Eminence Capital, LP | 5,170,451 | $152.9M | 2.99% | −319,566−5.8% | Reduced |
| Capital World Investors | 6,384,111 | $188.8M | 0.03% | −161,227−2.5% | Reduced |
| Vanguard Group Inc | 7,021,906 | $207.7M | 0.00% | +18,571+0.3% | Added |
| BlackRock Inc. | 9,245,653 | $273.5M | 0.01% | +389,166+4.4% | Added |
| Peregrine Capital Management LLC | 0 | $0 | 0.00% | −243,355−100.0% | Sold out |
| Norges Bank | 0 | $0 | 0.00% | −163,273−100.0% | Sold out |
| Integral Health Asset Management, LLC | 0 | $0 | 0.00% | −130,000−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −108,056−100.0% | Sold out |
| Granahan Investment Management Inc | 0 | $0 | 0.00% | −98,924−100.0% | Sold out |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −87,632−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −62,133−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −57,969−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −56,156−100.0% | Sold out |
| Millrace Asset Group, Inc. | 0 | $0 | 0.00% | −54,706−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −32,765−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −25,521−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −23,510−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −22,342−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −19,638−100.0% | Sold out |
| Waterfront Wealth Inc. | 0 | $0 | 0.00% | −16,878−100.0% | Sold out |
| Ontario Teachers Pension Plan Board | 0 | $0 | 0.00% | −12,771−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −11,482−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −11,348−100.0% | Sold out |
| Polar Capital Holdings Plc | 0 | $0 | 0.00% | −11,210−100.0% | Sold out |
| Mercer Global Advisors Inc | 0 | $0 | 0.00% | −9,756−100.0% | Sold out |
| Lombard Odier Asset Management (USA) Corp | 0 | $0 | 0.00% | −8,225−100.0% | Sold out |
| Counterpoint Mutual Funds LLC | 0 | $0 | 0.00% | −6,393−100.0% | Sold out |
| Stonebridge Capital Advisors LLC | 0 | $0 | 0.00% | −5,400−100.0% | Sold out |
| FinTrust Capital Advisors, LLC | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Glassman Wealth Services | 0 | $0 | 0.00% | −32−100.0% | Sold out |
| Maryland Capital Advisors Inc. | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Cary Street Partner Investment Advisory LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| USA Financial Portformulas Corp | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Elequin Capital LP | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Harel Insurance Investments & Financial Services Ltd. | 0 | $0 | 0.00% | −2−100.0% | Sold out |