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 |
|---|---|---|---|---|---|
| True Wealth Design, LLC | 1 | $20 | 0.00% | +1 | New |
| Bryn Mawr Trust Co | 5 | $96 | 0.00% | 00.0% | Unchanged |
| WealthTrak Capital Management LLC | 5 | $96 | 0.00% | +5 | New |
| Abound Wealth Management | 6 | $115 | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 7 | $134 | 0.00% | 00.0% | Unchanged |
| Evermay Wealth Management LLC | 9 | $173 | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 15 | $288 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 18 | $345 | 0.00% | −1−5.3% | Reduced |
| Caitong International Asset Management Co., Ltd | 19 | $364 | 0.00% | +19 | New |
| Central Trust Co | 20 | $384 | 0.00% | 00.0% | Unchanged |
| Stephens Consulting, LLC | 20 | $384 | 0.00% | +20 | New |
| MV Capital Management, Inc. | 23 | $441 | 0.00% | +22+2,200.0% | Added |
| 1620 Investment Advisors, Inc. | 25 | $479 | 0.00% | +25 | New |
| Bare Financial Services, Inc | 29 | $556 | 0.00% | +29 | New |
| Rothschild Investment LLC | 30 | $575 | 0.00% | −40−57.1% | Reduced |
| Aventura Private Wealth, LLC | 30 | $575 | 0.00% | 00.0% | Unchanged |
| Eastern Bank | 32 | $613 | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 33 | $633 | 0.00% | +4+13.8% | Added |
| Northwestern Mutual Wealth Management Co | 35 | $671 | 0.00% | −276−88.7% | Reduced |
| Sachetta, LLC | 35 | $671 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 38 | $672 | 0.00% | −44−53.7% | Reduced |
| Bell Investment Advisors, Inc | 36 | $690 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 39 | $747 | 0.00% | −229−85.4% | Reduced |
| Golden State Wealth Management, LLC | 41 | $786 | 0.00% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 50 | $958 | 0.00% | 00.0% | Unchanged |
| Hantz Financial Services, Inc. | 35 | $1.00K | 0.00% | +35 | New |
| Quent Capital, LLC | 60 | $1.15K | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. Wealth Management LLC | 62 | $1.19K | 0.00% | 00.0% | Unchanged |
| Prestige Wealth Management Group LLC | 63 | $1.21K | 0.00% | +35+125.0% | Added |
| Sterling Capital Management LLC | 67 | $1.28K | 0.00% | 00.0% | Unchanged |
| 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 |
| MAI Capital Management | 78 | $1.50K | 0.00% | −11−12.4% | Reduced |
| IFP Advisors, Inc | 96 | $1.84K | 0.00% | +1+1.1% | Added |
| 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 |
| Steward Partners Investment Advisory, LLC | 130 | $2.49K | 0.00% | 00.0% | Unchanged |
| Sierra Ocean, LLC | 155 | $2.97K | 0.00% | +155 | New |
| Private Trust Co NA | 185 | $3.54K | 0.00% | +50+37.0% | Added |
| Lindbrook Capital, LLC | 190 | $3.64K | 0.00% | −90−32.1% | Reduced |
| Harbour Investments, Inc. | 204 | $3.91K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 207 | $3.97K | 0.00% | +171+475.0% | Added |
| Banque Cantonale Vaudoise | 237 | $5.00K | 0.00% | +237 | New |
| Massmutual Trust Co FSB | 271 | $5.19K | 0.00% | +203+298.5% | Added |
| Covestor Ltd | 291 | $6.00K | 0.00% | +1+0.3% | Added |
| Newbridge Financial Services Group, Inc. | 320 | $6.13K | 0.00% | −240−42.9% | Reduced |
| Mather Group, LLC. | 345 | $6.61K | 0.00% | +175+102.9% | Added |
| Principal Securities, Inc. | 221 | $7.96K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 417 | $7.99K | 0.00% | +400+2,352.9% | Added |
| Fifth Third Bancorp | 431 | $8.26K | 0.00% | +4+0.9% | Added |
| GWM Advisors LLC | 452 | $8.66K | 0.00% | +294+186.1% | Added |
| CIBC Private Wealth Group, LLC | 646 | $10.6K | 0.00% | +464+254.9% | Added |
| Versant Capital Management, Inc | 772 | $14.8K | 0.00% | +188+32.2% | Added |
| CWM, LLC | 771 | $15.0K | 0.00% | −163−17.5% | Reduced |
| Jones Financial Companies LLLP | 853 | $16.4K | 0.00% | −277−24.5% | Reduced |
| Salem Investment Counselors Inc | 1,000 | $19.2K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 1,008 | $19.4K | 0.00% | −767−43.2% | Reduced |
| Parallel Advisors, LLC | 1,019 | $19.5K | 0.00% | −171−14.4% | Reduced |
| First Horizon Advisors, Inc. | 1,071 | $20.5K | 0.00% | +96+9.8% | Added |
| McIlrath & Eck, LLC | 1,215 | $23.3K | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 1,283 | $24.6K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,454 | $27.9K | 0.00% | +163+12.6% | Added |
| Simplex Trading, LLC | 1,503 | $28.0K | 0.00% | +1,503 | New |
| Signaturefd, LLC | 1,698 | $32.5K | 0.00% | −567−25.0% | Reduced |
| AdvisorNet Financial, Inc | 1,719 | $32.9K | 0.00% | +180+11.7% | Added |
| Assetmark, Inc | 1,750 | $33.5K | 0.00% | +525+42.9% | Added |
| NBC Securities, Inc. | 1,945 | $37.0K | 0.00% | +1,945 | New |
| GAMMA Investing LLC | 2,202 | $42.2K | 0.00% | −2,685−54.9% | Reduced |
| Creative Financial Designs Inc | 2,522 | $48.3K | 0.00% | 00.0% | Unchanged |
| Stonehage Fleming Financial Services Holdings Ltd | 2,551 | $48.9K | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 2,651 | $50.0K | 0.00% | +2,651 | New |
| Tower Research Capital LLC (TRC) | 2,878 | $55.1K | 0.00% | −1,024−26.2% | Reduced |
| Skopos Labs, Inc. | 3,397 | $65.1K | 0.01% | +2,741+417.8% | Added |
| Farther Finance Advisors, LLC | 4,116 | $77.1K | 0.00% | +350+9.3% | Added |
| State of Wyoming | 4,467 | $85.6K | 0.01% | +1,471+49.1% | Added |
| Canada Pension Plan Investment Board | 5,800 | $111.1K | 0.00% | −11,100−65.7% | Reduced |
| Coldstream Capital Management Inc | 6,651 | $127.4K | 0.00% | +466+7.5% | Added |
| Leonteq Securities AG | 6,848 | $131.1K | 0.01% | +4,082+147.6% | Added |
| Ameritas Investment Partners, Inc. | 6,870 | $131.6K | 0.00% | 00.0% | Unchanged |
| Van Eck Associates Corp | 7,398 | $142.0K | 0.00% | +2,497+50.9% | Added |
| Public Employees Retirement Association of Colorado | 7,650 | $147.0K | 0.00% | 00.0% | Unchanged |
| Quest Partners LLC | 8,561 | $164.0K | 0.02% | +7,630+819.5% | Added |
| Quadrant Capital Group LLC | 9,078 | $173.9K | 0.01% | +3,278+56.5% | Added |
| Advisor Group Holdings, Inc. | 9,134 | $175.0K | 0.00% | +3,405+59.4% | Added |
| Axq Capital, LP | 10,098 | $193.5K | 0.08% | +10,098 | New |
| MN Wealth Advisors, LLC | 10,623 | $203.5K | 0.12% | −7,331−40.8% | Reduced |
| MML Investors Services, LLC | 10,718 | $205.0K | 0.00% | +2,442+29.5% | Added |
| Allianz Asset Management GmbH | 10,700 | $205.0K | 0.00% | +10,700 | New |
| Brevan Howard Capital Management LP | 10,779 | $206.5K | 0.01% | −42,062−79.6% | Reduced |
| Wolverine Trading, LLC | 10,973 | $211.6K | 0.01% | +10,973 | New |
| Apollon Wealth Management, LLC | 11,074 | $212.2K | 0.00% | −3,738−25.2% | Reduced |
| CI Private Wealth, LLC | 11,269 | $215.9K | 0.00% | +3,425+43.7% | Added |
| Bank of Montreal | 11,390 | $218.2K | 0.00% | +1,386+13.9% | Added |
| Atria Investments LLC | 11,569 | $221.7K | 0.00% | +1,468+14.5% | Added |
| Jefferies Financial Group Inc. | 11,668 | $223.6K | 0.00% | +2,510+27.4% | Added |
| Park Avenue Securities LLC | 11,708 | $224.0K | 0.00% | +2,794+31.3% | Added |
| Dynamic Technology Lab Private Ltd | 11,766 | $225.0K | 0.03% | +11,766 | New |
| Davy Global Fund Management Ltd | 11,851 | $227.1K | 0.03% | 00.0% | Unchanged |
| AQR Capital Management LLC | 12,069 | $230.0K | 0.00% | −1,836−13.2% | Reduced |