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 2023
Institutional positions in Tandem Diabetes Care Inc as of Dec 31, 2023. 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
- 268
- +43 vs. Q3 2023
- Shares held
- 70.9M
- +1.30M (+1.9%) vs. Q3 2023
- Total value
- $2.10B
- +$651.3M (+45.1%) vs. Q3 2023
- New holders
- 75
- 84 more added
- Sold out
- 32
- 86 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital Advisors, Ltd. LLC | 13 | $0 | 0.00% | +13 | New |
| Smartleaf Asset Management LLC | 4 | $0 | 0.00% | +4 | New |
| Proequities, Inc. | 1 | $29 | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 3 | $85 | 0.00% | −40−93.0% | Reduced |
| Crewe Advisors LLC | 6 | $178 | 0.00% | +6 | New |
| Bruce G. Allen Investments, LLC | 8 | $237 | 0.00% | +8 | New |
| Abound Wealth Management | 10 | $296 | 0.00% | +3+42.9% | Added |
| Central Trust Co | 20 | $592 | 0.00% | 00.0% | Unchanged |
| Tidemark, LLC | 20 | $592 | 0.00% | +20 | New |
| Huntington National Bank | 21 | $622 | 0.00% | +2+10.5% | Added |
| Security National Bank | 26 | $769 | 0.00% | +26 | New |
| Able Wealth Management LLC | 31 | $917 | 0.00% | +31 | New |
| Cambridge Trust Co | 32 | $947 | 0.00% | 00.0% | Unchanged |
| AlphaMark Advisors, LLC | 30 | $1.00K | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 35 | $1.04K | 0.00% | +35 | New |
| Bell Investment Advisors, Inc | 36 | $1.06K | 0.00% | +32+800.0% | Added |
| Focused Wealth Management, Inc | 40 | $1.18K | 0.00% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 50 | $1.48K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 60 | $1.77K | 0.00% | −123−67.2% | Reduced |
| Quent Capital, LLC | 60 | $1.77K | 0.00% | −34−36.2% | Reduced |
| Walleye Trading LLC | 67 | $1.98K | 0.00% | +67 | New |
| Steward Partners Investment Advisory, LLC | 70 | $2.07K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 74 | $2.19K | 0.00% | +68+1,133.3% | Added |
| CarsonAllaria Wealth Management, Ltd. | 75 | $2.22K | 0.00% | 00.0% | Unchanged |
| Umb Bank N A | 84 | $2.48K | 0.00% | −50−37.3% | Reduced |
| Allworth Financial LP | 84 | $2.48K | 0.00% | +4+5.0% | Added |
| Zions Bancorporation, N.A. | 87 | $2.57K | 0.00% | −51−37.0% | Reduced |
| IFP Advisors, Inc | 96 | $2.84K | 0.00% | −145−60.2% | Reduced |
| Front Row Advisors LLC | 100 | $2.96K | 0.00% | 00.0% | Unchanged |
| Private Trust Co NA | 120 | $3.55K | 0.00% | +120 | New |
| Beacon Capital Management, LLC | 202 | $4.20K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 150 | $4.44K | 0.00% | +150 | New |
| Lindbrook Capital, LLC | 190 | $5.62K | 0.00% | +116+156.8% | Added |
| Harbour Investments, Inc. | 200 | $5.92K | 0.00% | −66−24.8% | Reduced |
| EverSource Wealth Advisors, LLC | 253 | $7.48K | 0.00% | +243+2,430.0% | Added |
| Covestor Ltd | 291 | $9.00K | 0.01% | +2+0.7% | Added |
| Principal Securities, Inc. | 317 | $9.38K | 0.00% | +317 | New |
| Toth Financial Advisory Corp | 325 | $9.61K | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 326 | $9.64K | 0.00% | +92+39.3% | Added |
| Stephens Inc | 328 | $9.70K | 0.00% | −1,746−84.2% | Reduced |
| Banque Cantonale Vaudoise | 346 | $10.0K | 0.00% | −25−6.7% | Reduced |
| GPS Wealth Strategies Group, LLC | 369 | $10.9K | 0.00% | −131−26.2% | Reduced |
| Versant Capital Management, Inc | 377 | $11.2K | 0.00% | +370+5,285.7% | Added |
| Lee Financial Co | 385 | $11.4K | 0.00% | +385 | New |
| Allspring Global Investments Holdings, LLC | 398 | $11.8K | 0.00% | +90+29.2% | Added |
| Loomis Sayles & Co L P | 400 | $12.0K | 0.00% | +400 | New |
| First Horizon Advisors, Inc. | 513 | $15.2K | 0.00% | +314+157.8% | Added |
| Quarry LP | 517 | $15.3K | 0.01% | +517 | New |
| Parallel Advisors, LLC | 534 | $15.8K | 0.00% | +472+761.3% | Added |
| MCF Advisors LLC | 561 | $16.6K | 0.00% | +461+461.0% | Added |
| Global Retirement Partners, LLC | 690 | $17.6K | 0.00% | +48+7.5% | Added |
| NBC Securities, Inc. | 618 | $18.0K | 0.00% | +31+5.3% | Added |
| Farther Finance Advisors, LLC | 673 | $19.9K | 0.00% | +173+34.6% | Added |
| Arcadia Investment Management Corp | 766 | $22.7K | 0.00% | +766 | New |
| CWM, LLC | 781 | $23.0K | 0.00% | +331+73.6% | Added |
| RiverPark Advisors, LLC | 916 | $27.1K | 0.02% | +916 | New |
| Salem Investment Counselors Inc | 1,000 | $29.6K | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 1,417 | $41.9K | 0.00% | −370−20.7% | Reduced |
| State of Wyoming | 1,486 | $44.0K | 0.01% | +153+11.5% | Added |
| AdvisorNet Financial, Inc | 1,500 | $44.4K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 1,611 | $47.7K | 0.00% | −28−1.7% | Reduced |
| Signaturefd, LLC | 1,691 | $50.0K | 0.00% | +1,517+871.8% | Added |
| GAMMA Investing LLC | 2,470 | $56.3K | 0.02% | +2,470 | New |
| Creative Financial Designs Inc | 3,531 | $104.4K | 0.01% | +3,531 | New |
| Group One Trading, L.P. | 3,631 | $107.4K | 0.00% | +3,631 | New |
| American International Group, Inc. | 3,661 | $108.3K | 0.00% | −182−4.7% | Reduced |
| Acadian Asset Management LLC | 3,759 | $111.0K | 0.00% | +3,759 | New |
| Quadrant Capital Group LLC | 3,976 | $117.6K | 0.01% | +3,161+387.9% | Added |
| Nisa Investment Advisors, LLC | 4,450 | $131.6K | 0.00% | −1,600−26.4% | Reduced |
| Newbridge Financial Services Group, Inc. | 4,470 | $132.2K | 0.06% | −1,555−25.8% | Reduced |
| The PNC Financial Services Group, Inc. | 5,788 | $171.2K | 0.00% | +2,562+79.4% | Added |
| Van Eck Associates Corp | 5,900 | $175.0K | 0.00% | +467+8.6% | Added |
| Tower Research Capital LLC (TRC) | 6,408 | $189.5K | 0.00% | −285−4.3% | Reduced |
| Advisory Services Network, LLC | 6,928 | $204.9K | 0.01% | +6,928 | New |
| CenterBook Partners LP | 6,929 | $205.0K | 0.03% | +6,929 | New |
| Captrust Financial Advisors | 7,014 | $207.5K | 0.00% | +7,014 | New |
| Pictet Asset Management Holding SA | 7,082 | $209.5K | 0.00% | +7,082 | New |
| Quantinno Capital Management LP | 7,111 | $210.0K | 0.01% | +7,111 | New |
| Park Avenue Securities LLC | 7,191 | $213.0K | 0.00% | +7,191 | New |
| SEI Investments Co | 7,683 | $227.3K | 0.00% | −33,221−81.2% | Reduced |
| 180 Wealth Advisors, LLC | 8,037 | $227.7K | 0.05% | +8,037 | New |
| Commonwealth Equity Services, LLC | 7,707 | $228.0K | 0.00% | −2,163−21.9% | Reduced |
| Landscape Capital Management, L.L.C. | 7,726 | $228.5K | 0.02% | +7,726 | New |
| Creative Planning | 7,804 | $230.8K | 0.00% | +7,679+6,143.2% | Added |
| Prelude Capital Management, LLC | 7,925 | $234.4K | 0.02% | +7,925 | New |
| Manufacturers Life Insurance Company, The | 8,006 | $236.8K | 0.00% | +8,006 | New |
| Public Employees Retirement Association of Colorado | 8,105 | $240.0K | 0.00% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 8,130 | $240.5K | 0.00% | +8,130 | New |
| Capstone Investment Advisors, LLC | 8,297 | $245.4K | 0.00% | +8,297 | New |
| Bank of Montreal | 8,268 | $255.2K | 0.00% | +8,268 | New |
| Keybank National Association | 8,678 | $256.7K | 0.00% | +8,678 | New |
| Everence Capital Management Inc | 9,020 | $267.0K | 0.02% | +9,020 | New |
| BNP Paribas Arbitrage, SA | 9,220 | $272.7K | 0.00% | −13,808−60.0% | Reduced |
| Guggenheim Capital LLC | 9,246 | $273.5K | 0.00% | +9,246 | New |
| Oppenheimer & Co Inc | 9,799 | $289.9K | 0.01% | +9,799 | New |
| CI Private Wealth, LLC | 10,020 | $296.4K | 0.00% | +10,020 | New |
| Diversified Trust Co | 10,573 | $312.7K | 0.01% | +564+5.6% | Added |
| Legato Capital Management LLC | 10,810 | $319.8K | 0.04% | +10,810 | New |
| Algert Global LLC | 11,143 | $329.6K | 0.01% | −31,500−73.9% | Reduced |
| Capital Group Investment Management Pte. Ltd. | 11,300 | $334.3K | 0.04% | 00.0% | Unchanged |