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 2022
Institutional positions in Tandem Diabetes Care Inc as of Mar 31, 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
- 379
- −4 vs. Q4 2021
- Shares held
- 59.5M
- −891.8K (−1.5%) vs. Q4 2021
- Total value
- $6.92B
- −$2.17B (−23.8%) vs. Q4 2021
- New holders
- 62
- 153 more added
- Sold out
- 66
- 119 more reduced
5 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2021: 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 2022
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pictet & Cie (Europe) SA | 0 | $0 | 0.00% | −5,528−100.0% | Sold out |
| Range Financial Group LLC | 0 | $0 | 0.00% | −4,448−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −4,345−100.0% | Sold out |
| Synovus Financial Corp | 0 | $0 | 0.00% | −4,291−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −4,060−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −3,955−100.0% | Sold out |
| TKG Advisors, LLC | 0 | $0 | 0.00% | −3,700−100.0% | Sold out |
| G&S Capital LLC | 0 | $0 | 0.00% | −3,227−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −2,926−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −2,735−100.0% | Sold out |
| Aubrey Capital Management Ltd | 0 | $0 | 0.00% | −2,205−100.0% | Sold out |
| Eqis Capital Management, Inc. | 0 | $0 | 0.00% | −2,093−100.0% | Sold out |
| Axiom Investment Management LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −1,851−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −1,838−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −1,683−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −1,603−100.0% | Sold out |
| CIBC World Markets Inc. | 0 | $0 | 0.00% | −1,594−100.0% | Sold out |
| Lido Advisors, LLC | 0 | $0 | 0.00% | −1,515−100.0% | Sold out |
| Merriman Wealth Management, LLC | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −1,465−100.0% | Sold out |
| Cigna Investments Inc | 0 | $0 | 0.00% | −1,438−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −1,432−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −1,395−100.0% | Sold out |
| Meristem Family Wealth, LLC | 0 | $0 | 0.00% | −1,342−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −1,315−100.0% | Sold out |
| PEAK6 Investments LLC | 0 | $0 | 0.00% | −1,069−100.0% | Sold out |
| Maverick Capital LtdSuperinvestorMaverick Capital | 0 | $0 | 0.00% | −721−100.0% | Sold out |
| Harvest Fund Management Co., Ltd | 0 | $0 | 0.00% | −437−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −414−100.0% | Sold out |
| KRS Capital Management, LLC | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Retirement Planning Co of New England, Inc. | 0 | $0 | 0.00% | −325−100.0% | Sold out |
| Investmark Advisory Group LLC | 0 | $0 | 0.00% | −225−100.0% | Sold out |
| Advanced Research Investment Solutions, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Robbins Farley LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Beaird Harris Wealth Management, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Wagner Wealth Management, LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Stonebridge Financial Planning Group, LLC | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| Fieldpoint Private Securities, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Lee Financial Co | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Valley National Advisers Inc | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| AdvisorNet Financial, Inc | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| TD Private Client Wealth LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Snowden Capital Advisors LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Columbia Asset Management | – | – | – | – | Not filed |
| 6 Meridian | – | – | – | – | Not filed |
| Harbour Investments, Inc. | – | – | – | – | Not filed |
| Bell Investment Advisors, Inc | – | – | – | – | Not filed |
| NEXT Financial Group, Inc | – | – | – | – | Not filed |