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 2024
Institutional positions in Tandem Diabetes Care Inc as of Dec 31, 2024. 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
- 316
- −10 vs. Q3 2024
- Shares held
- 72.1M
- −803.0K (−1.1%) vs. Q3 2024
- Total value
- $2.60B
- −$494.1M (−16.0%) vs. Q3 2024
- New holders
- 42
- 138 more added
- Sold out
- 52
- 90 more reduced
6 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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 2024
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 11,697,824 | $421.4M | 0.01% | +587,379+5.3% | Added |
| Vanguard Group Inc | 7,440,005 | $268.0M | 0.00% | +77,451+1.1% | Added |
| State Street Corp | 2,765,137 | $99.6M | 0.00% | +109,401+4.1% | Added |
| ArrowMark Colorado Holdings LLC | 2,723,715 | $98.1M | 1.32% | +337,026+14.1% | Added |
| GW&K Investment Management, LLC | 2,123,488 | $76.5M | 0.65% | +323,674+18.0% | Added |
| Fred Alger Management, LLC | 1,943,356 | $70.0M | 0.33% | −35,763−1.8% | Reduced |
| Jacobs Levy Equity Management, Inc | 1,661,013 | $59.8M | 0.21% | +1,086,337+189.0% | Added |
| Park West Asset Management LLC | 1,600,000 | $57.6M | 4.80% | +530,000+49.5% | Added |
| Stephens Investment Management Group LLC | 1,555,809 | $56.0M | 0.75% | +281,327+22.1% | Added |
| Geode Capital Management, LLC | 1,533,828 | $55.3M | 0.00% | +8,012+0.5% | Added |
| Jennison Associates LLC | 1,466,355 | $52.8M | 0.03% | −315,648−17.7% | Reduced |
| Champlain Investment Partners, LLC | 1,379,863 | $49.7M | 0.31% | −89,298−6.1% | Reduced |
| Hood River Capital Management LLC | 1,278,047 | $46.0M | 0.68% | +1,278,047 | New |
| FMR LLC | 1,086,842 | $39.1M | 0.00% | +521,962+92.4% | Added |
| Chicago Capital, LLC | 970,607 | $35.0M | 0.93% | −32,540−3.2% | Reduced |
| Paradice Investment Management LLC | 956,407 | $34.4M | 6.83% | +52,966+5.9% | Added |
| Marshall Wace, LLP | 950,948 | $34.3M | 0.04% | +137,354+16.9% | Added |
| Gilder Gagnon Howe & Co LLC | 931,894 | $33.6M | 0.36% | +58,920+6.7% | Added |
| Brown Advisory Inc | 913,087 | $32.9M | 0.04% | +913,087 | New |
| Two Sigma Advisers, LP | 881,783 | $31.8M | 0.07% | −20,100−2.2% | Reduced |
| Two Sigma Investments, LP | 861,188 | $31.0M | 0.07% | +36,475+4.4% | Added |
| Morgan Stanley | 847,109 | $30.5M | 0.00% | −145,602−14.7% | Reduced |
| Kingdon Capital Management, L.L.C. | 790,547 | $28.5M | 4.87% | +260,547+49.2% | Added |
| Bellevue Group AG | 782,456 | $28.2M | 0.54% | −1,068,435−57.7% | Reduced |
| Capital World Investors | 767,000 | $27.6M | 0.00% | −2,498,300−76.5% | Reduced |
| Baillie Gifford & Co | 746,109 | $26.9M | 0.02% | +523,843+235.7% | Added |
| Capital International Investors | 718,038 | $25.9M | 0.00% | +79,810+12.5% | Added |
| Northern Trust Corp | 697,456 | $25.1M | 0.00% | +61,768+9.7% | Added |
| Goldman Sachs Group Inc | 678,490 | $24.4M | 0.00% | +57,944+9.3% | Added |
| Brown Capital Management LLC | 642,020 | $23.1M | 0.54% | −97,076−13.1% | Reduced |
| UBS Group AG | 626,350 | $22.6M | 0.01% | +400,868+177.8% | Added |
| Charles Schwab Investment Management Inc | 602,321 | $21.7M | 0.00% | +16,258+2.8% | Added |
| Victory Capital Management Inc | 565,233 | $20.4M | 0.02% | −22,014−3.7% | Reduced |
| Nuveen Asset Management, LLC | 519,019 | $18.7M | 0.01% | +46,594+9.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 515,062 | $18.6M | 0.08% | +242,965+89.3% | Added |
| Oberweis Asset Management Inc | 506,600 | $18.2M | 0.86% | +58,550+13.1% | Added |
| Point72 Asset Management, L.P. | 495,311 | $17.8M | 0.05% | +254,605+105.8% | Added |
| Barclays PLC | 476,974 | $17.2M | 0.01% | +245,909+106.4% | Added |
| Bank of New York Mellon Corp | 436,692 | $15.7M | 0.00% | +4,130+1.0% | Added |
| JPMorgan Chase & Co | 392,586 | $14.1M | 0.00% | +195,003+98.7% | Added |
| Principal Financial Group Inc | 388,347 | $14.0M | 0.01% | +18,025+4.9% | Added |
| Divisadero Street Capital Management, LP | 360,232 | $13.0M | 1.62% | −692,374−65.8% | Reduced |
| Silvercrest Asset Management Group LLC | 346,565 | $12.5M | 0.08% | +78,347+29.2% | Added |
| Ameriprise Financial Inc | 345,681 | $12.5M | 0.00% | −525,159−60.3% | Reduced |
| Beaconlight Capital, LLC | 331,209 | $11.9M | 4.77% | +115,594+53.6% | Added |
| Bank of America Corp | 317,706 | $11.4M | 0.00% | −127,904−28.7% | Reduced |
| Renaissance Technologies LLC | 315,727 | $11.4M | 0.02% | +105,300+50.0% | Added |
| Mirae Asset Global Investments Co., Ltd. | 301,614 | $11.1M | 0.05% | +240,966+397.3% | Added |
| First Light Asset Management, LLC | 292,117 | $10.5M | 1.01% | −733,190−71.5% | Reduced |
| Russell Investments Group, Ltd. | 290,228 | $10.5M | 0.01% | +77,594+36.5% | Added |
| Frontier Capital Management Co LLC | 272,088 | $9.80M | 0.09% | +91,227+50.4% | Added |
| Kennedy Capital Management, Inc. | 267,355 | $9.63M | 0.21% | +142,321+113.8% | Added |
| Envestnet Asset Management Inc | 254,063 | $9.15M | 0.00% | −11,606−4.4% | Reduced |
| ExodusPoint Capital Management, LP | 254,057 | $9.15M | 0.10% | +195,194+331.6% | Added |
| Standard Life Aberdeen plc | 248,864 | $8.96M | 0.02% | +104,413+72.3% | Added |
| DAFNA Capital Management LLC | 223,208 | $8.04M | 2.04% | +19,000+9.3% | Added |
| Engineers Gate Manager LP | 222,805 | $8.03M | 0.14% | +143,702+181.7% | Added |
| New York State Common Retirement Fund | 212,166 | $7.64M | 0.01% | −55,291−20.7% | Reduced |
| Trexquant Investment LP | 211,206 | $7.61M | 0.09% | +73,838+53.8% | Added |
| Invesco Ltd. | 204,890 | $7.38M | 0.00% | −112,695−35.5% | Reduced |
| Next Century Growth Investors LLC | 201,839 | $7.27M | 0.54% | −780,843−79.5% | Reduced |
| FIL Ltd | 201,376 | $7.25M | 0.01% | +65,984+48.7% | Added |
| Capital Fund Management S.A. | 200,277 | $7.21M | 0.07% | +107,587+116.1% | Added |
| 4D Advisors, LLC | 200,000 | $7.20M | 5.05% | +200,000 | New |
| KBC Group NV | 192,479 | $6.93M | 0.02% | +56,461+41.5% | Added |
| Legal & General Group Plc | 182,655 | $6.58M | 0.00% | +1,481+0.8% | Added |
| Freestone Grove Partners LP | 181,124 | $6.52M | 0.08% | +181,124 | New |
| Rhumbline Advisers | 178,706 | $6.44M | 0.01% | −4,842−2.6% | Reduced |
| UBS Asset Management Americas Inc | 177,739 | $6.40M | 0.00% | +30,133+20.4% | Added |
| Tudor Investment Corp Et Al | 169,043 | $6.09M | 0.06% | +128,294+314.8% | Added |
| Public Sector Pension Investment Board | 164,022 | $5.91M | 0.02% | +25,136+18.1% | Added |
| Raymond James Financial Inc | 163,614 | $5.89M | 0.00% | +163,614 | New |
| Royal Bank of Canada | 162,258 | $5.84M | 0.00% | −10,594−6.1% | Reduced |
| Prudential Financial Inc | 174,884 | $5.72M | 0.01% | +39,784+29.4% | Added |
| Millennium Management LLC | 151,340 | $5.45M | 0.00% | −1,283,316−89.5% | Reduced |
| Polar Capital Holdings Plc | 142,900 | $5.15M | 0.03% | −11,052−7.2% | Reduced |
| State of Wisconsin Investment Board | 142,462 | $5.13M | 0.01% | +35,875+33.7% | Added |
| Citadel Advisors LLC | 131,826 | $4.75M | 0.00% | −215,997−62.1% | Reduced |
| Swiss National Bank | 128,700 | $4.64M | 0.00% | +2,500+2.0% | Added |
| Formula Growth Ltd | 125,965 | $4.54M | 1.54% | −2,160−1.7% | Reduced |
| SEI Investments Co | 123,807 | $4.46M | 0.01% | +93,256+305.2% | Added |
| Truist Financial Corp | 119,561 | $4.31M | 0.01% | +2,434+2.1% | Added |
| Lisanti Capital Growth, LLC | 118,550 | $4.27M | 1.03% | +3,625+3.2% | Added |
| Gotham Asset Management, LLC | 115,876 | $4.17M | 0.04% | −4,430−3.7% | Reduced |
| Rice Hall James & Associates, LLC | 105,482 | $3.80M | 0.21% | +13,224+14.3% | Added |
| Assenagon Asset Management S.A. | 98,231 | $3.54M | 0.01% | −279,334−74.0% | Reduced |
| Voya Investment Management LLC | 98,179 | $3.54M | 0.00% | +68,599+231.9% | Added |
| Prelude Capital Management, LLC | 97,690 | $3.52M | 0.30% | +29,580+43.4% | Added |
| Citigroup Inc | 95,213 | $3.43M | 0.00% | +13,183+16.1% | Added |
| Cubist Systematic Strategies, LLC | 93,987 | $3.39M | 0.06% | −226,462−70.7% | Reduced |
| Alliancebernstein L.P. | 93,807 | $3.38M | 0.00% | −40,640−30.2% | Reduced |
| Algert Global LLC | 89,536 | $3.23M | 0.08% | +52,423+141.3% | Added |
| Banque Pictet & Cie SA | 87,286 | $3.14M | 0.03% | −8,048−8.4% | Reduced |
| Mizuho Markets Americas LLC | 85,092 | $3.07M | 0.06% | +14,024+19.7% | Added |
| First Trust Advisors LP | 77,901 | $2.81M | 0.00% | −21,204−21.4% | Reduced |
| Amundi | 69,871 | $2.62M | 0.00% | +20,970+42.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 72,317 | $2.60M | 0.01% | −7,554−9.5% | Reduced |
| New York State Teachers Retirement System | 68,200 | $2.46M | 0.01% | −400−0.6% | Reduced |
| Cerity Partners LLC | 57,476 | $2.43M | 0.01% | −5,320−8.5% | Reduced |
| Natixis Advisors, L.P. | 65,678 | $2.37M | 0.00% | +1,972+3.1% | Added |