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 |
|---|---|---|---|---|---|
| Chicago Capital, LLC | 970,607 | $35.0M | 0.93% | −32,540−3.2% | Reduced |
| FMR LLC | 1,086,842 | $39.1M | 0.00% | +521,962+92.4% | Added |
| Hood River Capital Management LLC | 1,278,047 | $46.0M | 0.68% | +1,278,047 | New |
| Champlain Investment Partners, LLC | 1,379,863 | $49.7M | 0.31% | −89,298−6.1% | Reduced |
| Jennison Associates LLC | 1,466,355 | $52.8M | 0.03% | −315,648−17.7% | Reduced |
| Geode Capital Management, LLC | 1,533,828 | $55.3M | 0.00% | +8,012+0.5% | Added |
| Stephens Investment Management Group LLC | 1,555,809 | $56.0M | 0.75% | +281,327+22.1% | Added |
| Park West Asset Management LLC | 1,600,000 | $57.6M | 4.80% | +530,000+49.5% | Added |
| Jacobs Levy Equity Management, Inc | 1,661,013 | $59.8M | 0.21% | +1,086,337+189.0% | Added |
| Fred Alger Management, LLC | 1,943,356 | $70.0M | 0.33% | −35,763−1.8% | Reduced |
| GW&K Investment Management, LLC | 2,123,488 | $76.5M | 0.65% | +323,674+18.0% | Added |
| ArrowMark Colorado Holdings LLC | 2,723,715 | $98.1M | 1.32% | +337,026+14.1% | Added |
| State Street Corp | 2,765,137 | $99.6M | 0.00% | +109,401+4.1% | Added |
| Vanguard Group Inc | 7,440,005 | $268.0M | 0.00% | +77,451+1.1% | Added |
| BlackRock, Inc. | 11,697,824 | $421.4M | 0.01% | +587,379+5.3% | Added |
| RiverPark Advisors, LLC | 217 | – | – | −12,685−98.3% | Reduced |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −777,590−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −159,604−100.0% | Sold out |
| Integral Health Asset Management, LLC | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Simplify Asset Management Inc. | 0 | $0 | 0.00% | −114,604−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −76,183−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −60,804−100.0% | Sold out |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −44,776−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −42,193−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −33,824−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −31,743−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −23,723−100.0% | Sold out |
| Pacific Capital Partners Ltd | 0 | $0 | 0.00% | −15,282−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −14,193−100.0% | Sold out |
| Hanseatic Management Services Inc | 0 | $0 | 0.00% | −13,941−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −12,200−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −12,062−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −12,041−100.0% | Sold out |
| Everence Capital Management Inc | 0 | $0 | 0.00% | −11,950−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −10,928−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −7,284−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −7,151−100.0% | Sold out |
| Summit Trail Advisors, LLC | 0 | $0 | 0.00% | −7,054−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −6,641−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −5,770−100.0% | Sold out |
| Pictet & Cie (Europe) SA | 0 | $0 | 0.00% | −5,772−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −5,759−100.0% | Sold out |
| Resources Investment Advisors, LLC. | 0 | $0 | 0.00% | −5,314−100.0% | Sold out |
| JustInvest LLC | 0 | $0 | 0.00% | −5,105−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −4,816−100.0% | Sold out |
| Crossmark Global Holdings, Inc. | 0 | $0 | 0.00% | −4,720−100.0% | Sold out |
| International Assets Investment Management, LLC | 0 | $0 | 0.00% | −6,998−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −3,063−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Waldron Private Wealth LLC | 0 | $0 | 0.00% | −1,182−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −958−100.0% | Sold out |
| ORG Wealth Partners, LLC | 0 | $0 | 0.00% | −704−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −657−100.0% | Sold out |
| NBC Securities, Inc. | 0 | $0 | 0.00% | −563−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −382−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −300−100.0% | Sold out |
| Ronald Blue Trust, Inc. | 0 | $0 | 0.00% | −132−100.0% | Sold out |
| nVerses Capital, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Ashton Thomas Securities, LLC | 0 | $0 | 0.00% | −90−100.0% | Sold out |
| Bokf, NA | 0 | $0 | 0.00% | −66−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Tidemark, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| CVA Family Office, LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Capital Performance Advisors LLP | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Mendota Financial Group, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Raymond James & Associates | – | – | – | – | Not filed |
| Millrace Asset Group, Inc. | – | – | – | – | Not filed |
| ClariVest Asset Management LLC | – | – | – | – | Not filed |
| Raymond James Financial Services Advisors, Inc. | – | – | – | – | Not filed |
| FinTrust Capital Advisors, LLC | – | – | – | – | Not filed |
| Banque Cantonale Vaudoise | – | – | – | – | Not filed |