Tandem Diabetes CareTNDM
13F holders, Q2 2024 (June 30)316holders +25
61new positions
34sold out
7famous investors
$40.29avg. 13F price*
At the end of Q2 2024, 316 institutions reported holding Tandem Diabetes Care Inc. (TNDM) in their 13F filings, up 25 from Q1 2024. 61 opened new positions and 34 sold out. The largest holders were BlackRock Inc. ($448.1M), Vanguard Group Inc. ($297.3M) and Capital World Investors ($147.7M). 7 famous investors held it, including Ken Griffin (0.1% of Citadel Advisors's portfolio), Joel Greenblatt (0.1% of Gotham Asset Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Tandem Diabetes Care Inc.
- CUSIP
- 875372203
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024 → Q2 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 61 | $53.6M |
| Exits | 34 | $59.1M |
All 13F filers, Q1 2024 → Q2 2024: 10,797,125 shares bought and 11,290,877 shares sold, net −493,752 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 316 holders
| BlackRock Inc. | 0.01% | Add +20.5% | 11,122,903 | $448.1M |
| Vanguard Group Inc. | 0.01% | Add +4.6% | 7,378,002 | $297.3M |
| Capital World Investors | 0.02% | No change | 3,665,300 | $147.7M |
| State Street Corp. | 0.00% | Add +14.8% | 2,572,564 | $103.6M |
| ArrowMark Colorado Holdings LLC | 1.20% | Reduce -14.6% | 2,504,851 | $100.9M |
| Fred Alger Management, LLC | 0.43% | Add +45.2% | 2,174,107 | $87.6M |
| Jennison Associates LLC | 0.05% | Reduce -22.9% | 1,969,626 | $79.4M |
| Citadel Advisors | 0.07% | Add +219.0% | 1,808,741 | $72.9M |
| Champlain Investment Partners, LLC | 0.40% | Add +7.7% | 1,629,527 | $65.7M |
| Bellevue Group AG | 1.01% | Reduce -24.1% | 1,543,267 | $62.2M |
| Geode Capital Management, LLC | 0.01% | Add +40.1% | 1,507,629 | $60.8M |
| Ameriprise Financial Inc. | 0.02% | Add +87.0% | 1,480,774 | $59.6M |
| Janus Henderson Group PLC | 0.03% | Reduce -34.1% | 1,450,175 | $58.4M |
| GW&K Investment Management, LLC | 0.49% | Add +2.9% | 1,343,111 | $54.1M |
| Jacobs Levy Equity Management, Inc. | 0.21% | Add +2.0% | 1,244,140 | $50.1M |
| Stephens Investment Management Group LLC | 0.64% | Add +18.0% | 1,136,219 | $45.8M |
| Two Sigma Investments, LP | 0.11% | Add +11.1% | 1,135,180 | $45.7M |
| Two Sigma Advisers, LP | 0.10% | Add +5.1% | 1,131,583 | $45.6M |
| Millennium Management | 0.04% | Add +2.8% | 1,053,953 | $42.5M |
| Gilder Gagnon Howe & Co. LLC | 0.52% | Add +14.6% | 1,028,633 | $41.4M |
| Morgan Stanley | 0.00% | Reduce -27.1% | 1,019,411 | $41.1M |
| Driehaus Capital Management LLC | 0.37% | Reduce -27.5% | 955,244 | $38.5M |
| Brown Capital Management LLC | 0.74% | Reduce -4.2% | 914,455 | $36.8M |
| Next Century Growth Investors LLC | 3.06% | Add +7.2% | 914,370 | $36.8M |
| FMR LLC | 0.00% | Reduce -15.0% | 893,086 | $36.0M |
| Paradice Investment Management LLC | 5.86% | No change | 821,993 | $33.1M |
| Chicago Capital, LLC | 0.98% | Add +22.3% | 821,062 | $33.1M |
| First Light Asset Management, LLC | 2.50% | Add +49.1% | 708,482 | $28.5M |
| Park West Asset Management LLC | 2.11% | Reduce -52.0% | 670,721 | $27.0M |
| Bank of America Corp. | 0.00% | Add +18.0% | 632,871 | $25.5M |
| Capital International Investors | 0.01% | Reduce -40.4% | 606,469 | $24.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +35.8% | 567,189 | $22.9M |
| Marshall Wace, LLP | 0.03% | Reduce -83.2% | 524,393 | $21.1M |
| Bank of New York Mellon Corp | 0.00% | Add +17.4% | 494,313 | $19.9M |
| Principal Financial Group Inc. | 0.01% | Add +25.7% | 448,093 | $18.1M |
| Barclays PLC | 0.01% | Add +714.7% | 405,712 | $16.3M |
| Victory Capital Management Inc. | 0.02% | Add +2836.2% | 403,370 | $16.3M |
| New York State Common Retirement Fund | 0.02% | Add +24.1% | 384,507 | $15.5M |
| First Trust Advisors LP | 0.02% | Add +10.5% | 378,897 | $15.3M |
| Kingdon Capital Management, L.L.C. | 2.30% | Reduce -25.2% | 369,000 | $14.9M |
| Northern Trust Corp. | 0.00% | Add +6.4% | 364,544 | $14.7M |
| Assenagon Asset Management S.A. | 0.03% | Add +37.5% | 311,427 | $12.5M |
| Renaissance Technologies | 0.02% | Reduce -50.2% | 295,823 | $11.9M |
| UBS Group AG | 0.00% | Add +626.4% | 295,787 | $11.9M |
| Oberweis Asset Management Inc./ | 0.70% | New | 282,000 | $11.4M |
| Silvercrest Asset Management Group LLC | 0.07% | Add +1.4% | 269,765 | $10.9M |
| Envestnet Asset Management Inc. | 0.00% | Add +8.2% | 251,014 | $10.1M |
| Nuveen Asset Management, LLC | 0.00% | Add +69.9% | 244,592 | $9.9M |
| KBC Group NV | 0.03% | Reduce -0.2% | 239,414 | $9.6M |
| Russell Investments Group, Ltd. | 0.02% | Reduce -4.4% | 232,853 | $9.4M |
| Voloridge Investment Management, LLC | 0.03% | Reduce -55.8% | 230,410 | $9.3M |
| Baillie Gifford & Co. | 0.01% | Reduce -14.4% | 222,386 | $9.0M |
| Trexquant Investment LP | 0.13% | Reduce -10.6% | 208,389 | $8.4M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | Add +19.9% | 205,410 | $8.3M |
| DAFNA Capital Management LLC | 1.99% | Reduce -20.9% | 204,208 | $8.2M |
| Invesco Ltd. | 0.00% | Reduce -19.5% | 203,501 | $8.2M |
| BNP Paribas Financial Markets | 0.01% | Add +32.8% | 193,697 | $7.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +61.3% | 191,724 | $7.7M |
| Royal Bank of Canada | 0.00% | Add +128.9% | 190,708 | $7.7M |
| Rhumbline Advisers | 0.01% | Add +15.7% | 186,779 | $7.5M |
| Legal & General Group Plc | 0.00% | Add +1.3% | 182,943 | $7.4M |
| Frontier Capital Management Co. LLC | 0.07% | Reduce -1.1% | 182,224 | $7.3M |
| Banque Pictet & Cie SA | 0.07% | Reduce -22.3% | 162,272 | $6.5M |
| Lisanti Capital Growth, LLC | 1.53% | Reduce -9.5% | 158,260 | $6.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +47.6% | 153,152 | $6.2M |
| Alliancebernstein L.P. | 0.00% | Add +69.3% | 148,885 | $6.0M |
| Public Sector Pension Investment Board | 0.04% | Add +6.3% | 142,086 | $5.7M |
| FIL Ltd | 0.01% | New | 135,622 | $5.5M |
| Gotham Asset Management | 0.07% | Add +6.1% | 130,721 | $5.3M |
| State of Wisconsin Investment Board | 0.01% | Add +23.6% | 127,611 | $5.1M |
| Swiss National Bank | 0.00% | Reduce -0.9% | 127,000 | $5.1M |
| Formula Growth Ltd. | 1.82% | Add +0.7% | 124,646 | $5.0M |
| Prudential Financial Inc. | 0.01% | Reduce -14.9% | 121,335 | $4.9M |
| Beaconlight Capital, LLC | 2.48% | Reduce -50.9% | 121,298 | $4.9M |
| Man Group plc | 0.01% | Add +473.8% | 121,245 | $4.9M |
| Squarepoint Ops LLC | 0.02% | Reduce -70.7% | 121,170 | $4.9M |
| ExodusPoint Capital Management, LP | 0.05% | New | 118,553 | $4.8M |
| Skandinaviska Enskilda Banken AB (publ) | 0.02% | No change | 118,221 | $4.8M |
| Citigroup Inc. | 0.00% | Add +42.7% | 109,674 | $4.4M |
| Truist Financial Corp. | 0.01% | Reduce -3.8% | 109,227 | $4.4M |
| Nicholas Investment Partners, LP | 0.46% | New | 98,063 | $4.0M |
| Raymond James & Associates | 0.00% | Reduce -0.2% | 96,671 | $3.9M |
| Engineers Gate Manager LP | 0.09% | Add +13.1% | 96,088 | $3.9M |
| Rice Hall James & Associates, LLC | 0.23% | Reduce -0.9% | 93,293 | $3.8M |
| Jefferies Financial Group Inc. | 0.07% | Add +182.5% | 84,756 | $3.4M |
| JPMorgan Chase & Co. | 0.00% | Reduce -10.1% | 84,228 | $3.4M |
| Macquarie Group Ltd. | 0.00% | New | 83,756 | $3.4M |
| Informed Momentum Co LLC | 0.52% | New | 79,633 | $3.2M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -1.1% | 78,787 | $3.2M |
| Susquehanna Fundamental Investments, LLC | 0.07% | Add +106.4% | 77,833 | $3.1M |
| SG Americas Securities, LLC | 0.02% | Reduce -47.4% | 77,647 | $3.1M |
| Mizuho Markets Americas LLC | 0.08% | New | 72,256 | $2.9M |
| New York State Teachers Retirement System | 0.01% | Reduce -1.6% | 68,900 | $2.8M |
| Jane Street Group, LLC | 0.00% | Reduce -78.0% | 67,695 | $2.7M |
| Tudor Investment Corporation | 0.03% | Reduce -15.7% | 65,226 | $2.6M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | Reduce -45.2% | 65,000 | $2.6M |
| California State Teachers Retirement System | 0.00% | Reduce -3.3% | 63,023 | $2.5M |
| Dimensional Fund Advisors LP | 0.00% | Add +35.3% | 56,200 | $2.3M |
| Walleye Capital LLC | 0.03% | Add +1012.0% | 55,834 | $2.2M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -5.2% | 53,619 | $2.2M |
"% of holder's portfolio" is TNDM's weight in each manager's 13F, not the share of Tandem Diabetes Care Inc. the manager owns.