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, Q3 2022
Institutional positions in Tandem Diabetes Care Inc as of Sep 30, 2022. 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
- 299
- −31 vs. Q2 2022
- Shares held
- 62.7M
- +1.30M (+2.1%) vs. Q2 2022
- Total value
- $3.00B
- −$637.5M (−17.5%) vs. Q2 2022
- New holders
- 39
- 104 more added
- Sold out
- 70
- 120 more reduced
1 institution that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2022
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q2 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Hood River Capital Management LLC | 0 | $0 | 0.00% | −382,658−100.0% | Sold out |
| Eversept Partners, LP | 0 | $0 | 0.00% | −256,268−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −215,247−100.0% | Sold out |
| Redmile Group, LLC | 0 | $0 | 0.00% | −187,460−100.0% | Sold out |
| Redwood Investments, LLC | 0 | $0 | 0.00% | −180,715−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −138,843−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −133,481−100.0% | Sold out |
| Bamco Inc | 0 | $0 | 0.00% | −121,615−100.0% | Sold out |
| Kingdon Capital Management, L.L.C. | 0 | $0 | 0.00% | −118,500−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −111,899−100.0% | Sold out |
| Sectoral Asset Management Inc | 0 | $0 | 0.00% | −105,763−100.0% | Sold out |
| British Columbia Investment Management Corp | 0 | $0 | 0.00% | −90,000−100.0% | Sold out |
| Duality Advisers, LP | 0 | $0 | 0.00% | −48,461−100.0% | Sold out |
| Nicholas Company, Inc. | 0 | $0 | 0.00% | −47,380−100.0% | Sold out |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −43,572−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −41,197−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −37,242−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −36,212−100.0% | Sold out |
| Next Century Growth Investors LLC | 0 | $0 | 0.00% | −34,352−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −27,441−100.0% | Sold out |
| Stanley-Laman Group, Ltd. | 0 | $0 | 0.00% | −19,191−100.0% | Sold out |
| First Republic Investment Management, Inc. | 0 | $0 | 0.00% | −18,545−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −17,638−100.0% | Sold out |
| Alpha Paradigm Partners, LLC | 0 | $0 | 0.00% | −14,157−100.0% | Sold out |
| M&G Investment Management Ltd | 0 | $0 | 0.00% | −12,822−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −11,555−100.0% | Sold out |
| Cna Financial Corp | 0 | $0 | 0.00% | −11,530−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −11,106−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −10,608−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −10,521−100.0% | Sold out |
| Trellus Management Company, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −8,116−100.0% | Sold out |
| Connacht Asset Management LP | 0 | $0 | 0.00% | −6,856−100.0% | Sold out |
| Schechter Investment Advisors, LLC | 0 | $0 | 0.00% | −6,645−100.0% | Sold out |
| Greenwood Capital Associates LLC | 0 | $0 | 0.00% | −5,863−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −5,848−100.0% | Sold out |
| JustInvest LLC | 0 | $0 | 0.00% | −5,708−100.0% | Sold out |
| Donoghue Forlines LLC | 0 | $0 | 0.00% | −5,587−100.0% | Sold out |
| Tarbox Family Office, Inc. | 0 | $0 | 0.00% | −5,514−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −5,473−100.0% | Sold out |
| CenterBook Partners LP | 0 | $0 | 0.00% | −5,443−100.0% | Sold out |
| Maryland State Retirement & Pension System | 0 | $0 | 0.00% | −4,800−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −4,416−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −4,373−100.0% | Sold out |
| Consonance Capital Management LP | 0 | $0 | 0.00% | −4,294−100.0% | Sold out |
| Level Four Advisory Services, LLC | 0 | $0 | 0.00% | −4,267−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −4,253−100.0% | Sold out |
| Echo Street Capital Management LLC | 0 | $0 | 0.00% | −4,202−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −4,151−100.0% | Sold out |
| First Manhattan Co | 0 | $0 | 0.00% | −4,000−100.0% | Sold out |
| WealthTrust Axiom LLC | 0 | $0 | 0.00% | −4,000−100.0% | Sold out |
| Bluestein R H & Co | 0 | $0 | 0.00% | −3,513−100.0% | Sold out |
| Captrust Financial Advisors | 0 | $0 | 0.00% | −3,251−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| SeaCrest Wealth Management, LLC | 0 | $0 | 0.00% | −1,125−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −1,032−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −373−100.0% | Sold out |
| Riverview Trust Co | 0 | $0 | 0.00% | −216−100.0% | Sold out |
| Patriot Financial Group Insurance Agency, LLC | 0 | $0 | 0.00% | −212−100.0% | Sold out |
| AdvisorNet Financial, Inc | 0 | $0 | 0.00% | −108−100.0% | Sold out |
| Charter Oak Capital Management, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| TCI Wealth Advisors, Inc. | 0 | $0 | 0.00% | −37−100.0% | Sold out |
| Montag A & Associates Inc | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Evermay Wealth Management LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Elequin Capital LP | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Cutler Group LP | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Sterling Investment Advisors, Ltd. | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Steward Financial Group LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Sciencast Management LP | – | – | – | – | Not filed |