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 2023
Institutional positions in Tandem Diabetes Care Inc as of Mar 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
- 274
- −18 vs. Q4 2022
- Shares held
- 68.1M
- +3.82M (+5.9%) vs. Q4 2022
- Total value
- $2.77B
- −$120.0M (−4.2%) vs. Q4 2022
- New holders
- 34
- 117 more added
- Sold out
- 52
- 92 more reduced
3 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Oppenheimer Asset Management Inc. | 5,259 | $213.6K | 0.00% | +5,259 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 5,258 | $213.5K | 0.00% | −8,634−62.2% | Reduced |
| MML Investors Services, LLC | 5,180 | $210.0K | 0.00% | +43+0.8% | Added |
| Leonteq Securities AG | 5,000 | $203.1K | 0.02% | +3,000+150.0% | Added |
| American International Group, Inc. | 4,999 | $203.0K | 0.00% | −95,439−95.0% | Reduced |
| AQR Capital Management LLC | 4,945 | $200.8K | 0.00% | +4,945 | New |
| Allspring Global Investments Holdings, LLC | 4,477 | $181.8K | 0.00% | −3,717−45.4% | Reduced |
| Van Eck Associates Corp | 4,084 | $166.0K | 0.00% | −113−2.7% | Reduced |
| MetLife Investment Management | 3,699 | $150.2K | 0.00% | −39,146−91.4% | Reduced |
| Stephens Inc | 2,120 | $86.1K | 0.00% | +317+17.6% | Added |
| Newbridge Financial Services Group, Inc. | 1,910 | $77.6K | 0.04% | +500+35.5% | Added |
| Aquatic Capital Management LLC | 1,900 | $77.0K | 0.00% | −5,400−74.0% | Reduced |
| CWM, LLC | 1,659 | $67.0K | 0.00% | +89+5.7% | Added |
| Northwestern Mutual Wealth Management Co | 1,520 | $61.7K | 0.00% | −300−16.5% | Reduced |
| Quadrant Capital Group LLC | 1,061 | $43.1K | 0.00% | +220+26.2% | Added |
| Salem Investment Counselors Inc | 1,000 | $40.6K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 909 | $36.9K | 0.01% | +88+10.7% | Added |
| Global Retirement Partners, LLC | 884 | $35.3K | 0.00% | −16−1.8% | Reduced |
| Acadian Asset Management LLC | 669 | $27.0K | 0.00% | −2,816−80.8% | Reduced |
| GPS Wealth Strategies Group, LLC | 658 | $26.7K | 0.01% | +658 | New |
| Nisa Investment Advisors, LLC | 605 | $25.0K | 0.00% | −5−0.8% | Reduced |
| Fifth Third Bancorp | 533 | $21.6K | 0.00% | +71+15.4% | Added |
| Versant Capital Management, Inc | 518 | $21.0K | 0.01% | +518 | New |
| Farther Finance Advisors, LLC | 500 | $20.3K | 0.01% | −3−0.6% | Reduced |
| Banque Cantonale Vaudoise | 495 | $20.0K | 0.00% | −147−22.9% | Reduced |
| Ameritas Advisory Services, LLC | 485 | $19.3K | 0.00% | +485 | New |
| Edmond de Rothschild Holding S.A. | 380 | $15.4K | 0.00% | −198−34.3% | Reduced |
| Belpointe Asset Management LLC | 350 | $14.2K | 0.00% | −230−39.7% | Reduced |
| Riverview Trust Co | 338 | $13.7K | 0.01% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 266 | $10.8K | 0.00% | −6−2.2% | Reduced |
| Parkside Financial Bank & Trust | 249 | $10.1K | 0.00% | +185+289.1% | Added |
| Lindbrook Capital, LLC | 245 | $9.95K | 0.00% | +203+483.3% | Added |
| Headlands Technologies LLC | 235 | $9.54K | 0.01% | +235 | New |
| Toth Financial Advisory Corp | 225 | $9.14K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 204 | $8.28K | 0.00% | 00.0% | Unchanged |
| Beacon Capital Management, LLC | 202 | $8.20K | 0.00% | +202 | New |
| Covestor Ltd | 201 | $8.00K | 0.01% | +96+91.4% | Added |
| International Assets Investment Management, LLC | 165 | $6.70K | 0.00% | +165 | New |
| Zions Bancorporation, N.A. | 151 | $6.13K | 0.00% | −88−36.8% | Reduced |
| FinTrust Capital Advisors, LLC | 130 | $5.84K | 0.00% | 00.0% | Unchanged |
| Kistler-Tiffany Companies, LLC | 125 | $5.08K | 0.00% | −120−49.0% | Reduced |
| Signaturefd, LLC | 118 | $4.79K | 0.00% | −448−79.2% | Reduced |
| Quent Capital, LLC | 111 | $4.51K | 0.00% | +16+16.8% | Added |
| Machina Capital S.A.S. | 100 | $4.06K | 0.00% | +100 | New |
| Front Row Advisors LLC | 100 | $4.00K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 267 | $3.85K | 0.00% | −98−26.8% | Reduced |
| Umb Bank N A | 84 | $3.41K | 0.00% | −22−20.8% | Reduced |
| Sound Income Strategies, LLC | 75 | $3.05K | 0.00% | +75 | New |
| CarsonAllaria Wealth Management, Ltd. | 75 | $3.05K | 0.00% | +75 | New |
| Tower Research Capital LLC (TRC) | 78 | $3.00K | 0.00% | −1,334−94.5% | Reduced |
| NewSquare Capital LLC | 65 | $2.64K | 0.00% | 00.0% | Unchanged |
| Ellevest, Inc. | 64 | $2.60K | 0.00% | −125−66.1% | Reduced |
| Glassman Wealth Services | 60 | $2.44K | 0.00% | −33−35.5% | Reduced |
| Massmutual Trust Co FSB | 52 | $2.11K | 0.00% | −266−83.6% | Reduced |
| Parallel Advisors, LLC | 52 | $2.11K | 0.00% | −173−76.9% | Reduced |
| Coastal Capital Group, Inc. | 43 | $1.75K | 0.00% | 00.0% | Unchanged |
| Bell Investment Advisors, Inc | 42 | $1.71K | 0.00% | −11−20.8% | Reduced |
| Sandy Spring Bank | 40 | $1.62K | 0.00% | 00.0% | Unchanged |
| Focused Wealth Management, Inc | 40 | $1.62K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 37 | $1.50K | 0.00% | +2+5.7% | Added |
| Bogart Wealth, LLC | 35 | $1.42K | 0.00% | +35 | New |
| Cambridge Trust Co | 32 | $1.30K | 0.00% | 00.0% | Unchanged |
| Prestige Wealth Management Group LLC | 25 | $1.02K | 0.00% | +25 | New |
| Farmers & Merchants Investments Inc | 25 | $1.01K | 0.00% | 00.0% | Unchanged |
| Sutton Wealth Advisors Inc. | 25 | $1.01K | 0.00% | 00.0% | Unchanged |
| AlphaMark Advisors, LLC | 30 | $1.00K | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 16 | $1.00K | 0.00% | −134−89.3% | Reduced |
| Huntington National Bank | 23 | $934 | 0.00% | +9+64.3% | Added |
| GWM Advisors LLC | 22 | $894 | 0.00% | −504−95.8% | Reduced |
| Crewe Advisors LLC | 18 | $731 | 0.00% | 00.0% | Unchanged |
| Baker Avenue Asset Management, LP | 16 | $650 | 0.00% | +1+6.7% | Added |
| EverSource Wealth Advisors, LLC | 10 | $406 | 0.00% | 00.0% | Unchanged |
| USA Financial Portformulas Corp | 2 | $81 | 0.00% | +2 | New |
| Toronto Dominion Bank | 7 | $0 | 0.00% | +7 | New |
| Proequities, Inc. | 0 | $0 | 0.00% | −398−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −881,307−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −359,605−100.0% | Sold out |
| Granite Investment Partners, LLC | 0 | $0 | 0.00% | −319,524−100.0% | Sold out |
| Osterweis Capital Management Inc | 0 | $0 | 0.00% | −96,120−100.0% | Sold out |
| Altium Capital Management LP | 0 | $0 | 0.00% | −90,000−100.0% | Sold out |
| Retirement Systems of Alabama | 0 | $0 | 0.00% | −84,748−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −68,321−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −66,837−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −51,798−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −45,636−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −36,977−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −33,667−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −30,368−100.0% | Sold out |
| Illinois Municipal Retirement Fund | 0 | $0 | 0.00% | −23,406−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −18,131−100.0% | Sold out |
| State of Michigan Retirement System | 0 | $0 | 0.00% | −16,345−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −16,714−100.0% | Sold out |
| Kent Lake Capital LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −12,328−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −10,265−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −10,236−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −10,225−100.0% | Sold out |
| New Mexico Educational Retirement Board | 0 | $0 | 0.00% | −10,100−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −9,624−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −8,503−100.0% | Sold out |