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, Q1 2025
Institutional positions in Tandem Diabetes Care Inc as of Mar 31, 2025. 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
- 275
- −38 vs. Q4 2024
- Shares held
- 73.1M
- +1.50M (+2.1%) vs. Q4 2024
- Total value
- $1.40B
- −$1.18B (−45.7%) vs. Q4 2024
- New holders
- 40
- 107 more added
- Sold out
- 78
- 85 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Farther Finance Advisors, LLC | 4,116 | $77.1K | 0.00% | +350+9.3% | Added |
| Skopos Labs, Inc. | 3,397 | $65.1K | 0.01% | +2,741+417.8% | Added |
| Tower Research Capital LLC (TRC) | 2,878 | $55.1K | 0.00% | −1,024−26.2% | Reduced |
| Lazard Asset Management LLC | 2,651 | $50.0K | 0.00% | +2,651 | New |
| Stonehage Fleming Financial Services Holdings Ltd | 2,551 | $48.9K | 0.00% | 00.0% | Unchanged |
| Creative Financial Designs Inc | 2,522 | $48.3K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 2,202 | $42.2K | 0.00% | −2,685−54.9% | Reduced |
| NBC Securities, Inc. | 1,945 | $37.0K | 0.00% | +1,945 | New |
| Assetmark, Inc | 1,750 | $33.5K | 0.00% | +525+42.9% | Added |
| AdvisorNet Financial, Inc | 1,719 | $32.9K | 0.00% | +180+11.7% | Added |
| Signaturefd, LLC | 1,698 | $32.5K | 0.00% | −567−25.0% | Reduced |
| Simplex Trading, LLC | 1,503 | $28.0K | 0.00% | +1,503 | New |
| Nisa Investment Advisors, LLC | 1,454 | $27.9K | 0.00% | +163+12.6% | Added |
| CoreCap Advisors, LLC | 1,283 | $24.6K | 0.00% | 00.0% | Unchanged |
| McIlrath & Eck, LLC | 1,215 | $23.3K | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 1,071 | $20.5K | 0.00% | +96+9.8% | Added |
| Parallel Advisors, LLC | 1,019 | $19.5K | 0.00% | −171−14.4% | Reduced |
| Smartleaf Asset Management LLC | 1,008 | $19.4K | 0.00% | −767−43.2% | Reduced |
| Salem Investment Counselors Inc | 1,000 | $19.2K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 853 | $16.4K | 0.00% | −277−24.5% | Reduced |
| CWM, LLC | 771 | $15.0K | 0.00% | −163−17.5% | Reduced |
| Versant Capital Management, Inc | 772 | $14.8K | 0.00% | +188+32.2% | Added |
| CIBC Private Wealth Group, LLC | 646 | $10.6K | 0.00% | +464+254.9% | Added |
| GWM Advisors LLC | 452 | $8.66K | 0.00% | +294+186.1% | Added |
| Fifth Third Bancorp | 431 | $8.26K | 0.00% | +4+0.9% | Added |
| SRS Capital Advisors, Inc. | 417 | $7.99K | 0.00% | +400+2,352.9% | Added |
| Principal Securities, Inc. | 221 | $7.96K | 0.00% | 00.0% | Unchanged |
| Mather Group, LLC. | 345 | $6.61K | 0.00% | +175+102.9% | Added |
| Newbridge Financial Services Group, Inc. | 320 | $6.13K | 0.00% | −240−42.9% | Reduced |
| Covestor Ltd | 291 | $6.00K | 0.00% | +1+0.3% | Added |
| Massmutual Trust Co FSB | 271 | $5.19K | 0.00% | +203+298.5% | Added |
| Banque Cantonale Vaudoise | 237 | $5.00K | 0.00% | +237 | New |
| Parkside Financial Bank & Trust | 207 | $3.97K | 0.00% | +171+475.0% | Added |
| Harbour Investments, Inc. | 204 | $3.91K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 190 | $3.64K | 0.00% | −90−32.1% | Reduced |
| Private Trust Co NA | 185 | $3.54K | 0.00% | +50+37.0% | Added |
| Sierra Ocean, LLC | 155 | $2.97K | 0.00% | +155 | New |
| Steward Partners Investment Advisory, LLC | 130 | $2.49K | 0.00% | 00.0% | Unchanged |
| Toth Financial Advisory Corp | 100 | $1.92K | 0.00% | −225−69.2% | Reduced |
| Front Row Advisors LLC | 100 | $1.92K | 0.00% | 00.0% | Unchanged |
| Continuum Advisory, LLC | 100 | $1.92K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 96 | $1.84K | 0.00% | +1+1.1% | Added |
| MAI Capital Management | 78 | $1.50K | 0.00% | −11−12.4% | Reduced |
| CarsonAllaria Wealth Management, Ltd. | 75 | $1.44K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 75 | $1.44K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 67 | $1.28K | 0.00% | 00.0% | Unchanged |
| Prestige Wealth Management Group LLC | 63 | $1.21K | 0.00% | +35+125.0% | Added |
| Bartlett & Co. Wealth Management LLC | 62 | $1.19K | 0.00% | 00.0% | Unchanged |
| Quent Capital, LLC | 60 | $1.15K | 0.00% | 00.0% | Unchanged |
| Hantz Financial Services, Inc. | 35 | $1.00K | 0.00% | +35 | New |
| Farmers & Merchants Investments Inc | 50 | $958 | 0.00% | 00.0% | Unchanged |
| Golden State Wealth Management, LLC | 41 | $786 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 39 | $747 | 0.00% | −229−85.4% | Reduced |
| Bell Investment Advisors, Inc | 36 | $690 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 38 | $672 | 0.00% | −44−53.7% | Reduced |
| Northwestern Mutual Wealth Management Co | 35 | $671 | 0.00% | −276−88.7% | Reduced |
| Sachetta, LLC | 35 | $671 | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 33 | $633 | 0.00% | +4+13.8% | Added |
| Eastern Bank | 32 | $613 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 30 | $575 | 0.00% | −40−57.1% | Reduced |
| Aventura Private Wealth, LLC | 30 | $575 | 0.00% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 29 | $556 | 0.00% | +29 | New |
| 1620 Investment Advisors, Inc. | 25 | $479 | 0.00% | +25 | New |
| MV Capital Management, Inc. | 23 | $441 | 0.00% | +22+2,200.0% | Added |
| Central Trust Co | 20 | $384 | 0.00% | 00.0% | Unchanged |
| Stephens Consulting, LLC | 20 | $384 | 0.00% | +20 | New |
| Caitong International Asset Management Co., Ltd | 19 | $364 | 0.00% | +19 | New |
| SBI Securities Co., Ltd. | 18 | $345 | 0.00% | −1−5.3% | Reduced |
| JFS Wealth Advisors, LLC | 15 | $288 | 0.00% | 00.0% | Unchanged |
| Evermay Wealth Management LLC | 9 | $173 | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 7 | $134 | 0.00% | 00.0% | Unchanged |
| Abound Wealth Management | 6 | $115 | 0.00% | 00.0% | Unchanged |
| Bryn Mawr Trust Co | 5 | $96 | 0.00% | 00.0% | Unchanged |
| WealthTrak Capital Management LLC | 5 | $96 | 0.00% | +5 | New |
| True Wealth Design, LLC | 1 | $20 | 0.00% | +1 | New |
| Proequities, Inc. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Gilder Gagnon Howe & Co LLC | 0 | $0 | 0.00% | −931,894−100.0% | Sold out |
| Bellevue Group AG | 0 | $0 | 0.00% | −782,456−100.0% | Sold out |
| Capital International Investors | 0 | $0 | 0.00% | −718,038−100.0% | Sold out |
| Oberweis Asset Management Inc | 0 | $0 | 0.00% | −506,600−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −495,311−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −211,206−100.0% | Sold out |
| Next Century Growth Investors LLC | 0 | $0 | 0.00% | −201,839−100.0% | Sold out |
| 4D Advisors, LLC | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −181,124−100.0% | Sold out |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −118,550−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −98,231−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −93,987−100.0% | Sold out |
| Banque Pictet & Cie SA | 0 | $0 | 0.00% | −87,286−100.0% | Sold out |
| M&T Bank Corp | 0 | $0 | 0.00% | −58,170−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −51,703−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −37,710−100.0% | Sold out |
| Integrated Quantitative Investments LLC | 0 | $0 | 0.00% | −31,900−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −31,251−100.0% | Sold out |
| Cambridge Investment Research Advisors, Inc. | 0 | $0 | 0.00% | −23,953−100.0% | Sold out |
| B. Metzler seel. Sohn & Co. AG | 0 | $0 | 0.00% | −21,870−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −20,335−100.0% | Sold out |
| Beacon Investment Advisory Services, Inc. | 0 | $0 | 0.00% | −18,905−100.0% | Sold out |
| Connective Capital Management, LLC | 0 | $0 | 0.00% | −16,960−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −16,107−100.0% | Sold out |