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 2021
Institutional positions in Tandem Diabetes Care Inc as of Dec 31, 2021. 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
- 388
- +56 vs. Q3 2021
- Shares held
- 60.4M
- +143.0K (+0.2%) vs. Q3 2021
- Total value
- $9.09B
- +$1.89B (+26.3%) vs. Q3 2021
- New holders
- 87
- 140 more added
- Sold out
- 31
- 116 more reduced
6 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| 6 Meridian | 1,509 | $227.0K | 0.02% | +1,509 | New |
| Merriman Wealth Management, LLC | 1,500 | $226.0K | 0.02% | +1,500 | New |
| Cetera Investment Advisers | 1,465 | $221.0K | 0.00% | +1,465 | New |
| American Portfolios Advisors | 1,460 | $219.8K | 0.01% | +1,301+818.2% | Added |
| Cigna Investments Inc | 1,438 | $216.0K | 0.02% | −540−27.3% | Reduced |
| CoreCap Advisors, LLC | 1,432 | $216.0K | 0.01% | +1,432 | New |
| Versor Investments LP | 1,415 | $213.0K | 0.01% | +1,415 | New |
| Coldstream Capital Management Inc | 1,395 | $210.0K | 0.01% | +1,395 | New |
| Derbend Asset Management | 1,347 | $203.0K | 0.20% | +1,347 | New |
| Meristem Family Wealth, LLC | 1,342 | $202.0K | 0.02% | +1,342 | New |
| Point72 Hong Kong Ltd | 1,315 | $198.0K | 0.02% | +1,315 | New |
| Leonteq Securities AG | 1,290 | $194.2K | 0.01% | +1,290 | New |
| Covestor Ltd | 1,258 | $189.0K | 0.26% | +1,258 | New |
| GPS Wealth Strategies Group, LLC | 1,098 | $165.0K | 0.04% | 00.0% | Unchanged |
| PEAK6 Investments LLC | 1,069 | $161.0K | 0.00% | −1,403−56.8% | Reduced |
| National Bank of Canada | 1,028 | $155.0K | 0.00% | +1,028 | New |
| Salem Investment Counselors Inc | 1,000 | $151.0K | 0.01% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 953 | $143.0K | 0.00% | +62+7.0% | Added |
| Altshuler Shaham Ltd | 838 | $126.0K | 0.00% | +399+90.9% | Added |
| FinTrust Capital Advisors, LLC | 755 | $114.0K | 0.03% | 00.0% | Unchanged |
| Maverick Capital LtdSuperinvestorMaverick Capital | 721 | $109.0K | 0.00% | −6,599−90.2% | Reduced |
| Edmond de Rothschild Holding S.A. | 686 | $103.0K | 0.00% | +686 | New |
| Nkcfo LLC | 655 | $99.0K | 0.03% | +655 | New |
| Banque Cantonale Vaudoise | 642 | $97.0K | 0.00% | 00.0% | Unchanged |
| Neo Ivy Capital Management | 589 | $89.0K | 0.13% | +447+314.8% | Added |
| Quantbot Technologies LP | 485 | $73.0K | 0.01% | +485 | New |
| CWM, LLC | 455 | $68.0K | 0.00% | +455 | New |
| Harvest Fund Management Co., Ltd | 437 | $66.0K | 0.01% | +437 | New |
| FNY Investment Advisers, LLC | 414 | $62.0K | 0.03% | +414 | New |
| KRS Capital Management, LLC | 400 | $60.0K | 0.05% | +400 | New |
| IFP Advisors, Inc | 361 | $54.0K | 0.00% | 00.0% | Unchanged |
| Toth Financial Advisory Corp | 325 | $49.0K | 0.01% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 316 | $48.0K | 0.00% | −452−58.9% | Reduced |
| Steward Partners Investment Advisory, LLC | 320 | $48.0K | 0.00% | 00.0% | Unchanged |
| Retirement Planning Co of New England, Inc. | 325 | $48.0K | 0.02% | +325 | New |
| Patriot Financial Group Insurance Agency, LLC | 284 | $43.0K | 0.01% | +42+17.4% | Added |
| Kistler-Tiffany Companies, LLC | 245 | $37.0K | 0.01% | 00.0% | Unchanged |
| Stephens Inc | 241 | $36.0K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 234 | $35.0K | 0.01% | +51+27.9% | Added |
| Byrne Asset Management LLC | 225 | $34.0K | 0.02% | +225 | New |
| Investmark Advisory Group LLC | 225 | $33.0K | 0.03% | +225 | New |
| FourThought Financial, LLC | 200 | $30.0K | 0.00% | −800−80.0% | Reduced |
| Fortitude Advisory Group L.L.C. | 148 | $22.0K | 0.01% | +148 | New |
| Nisa Investment Advisors, LLC | 175 | $21.0K | 0.00% | +25+16.7% | Added |
| Ellis Investment Partners, LLC | 130 | $19.0K | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 111 | $17.0K | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 108 | $16.0K | 0.00% | +5+4.9% | Added |
| Sandy Spring Bank | 100 | $15.0K | 0.00% | 00.0% | Unchanged |
| Front Row Advisors LLC | 100 | $15.0K | 0.01% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 104 | $15.0K | 0.00% | +2+2.0% | Added |
| Advanced Research Investment Solutions, LLC | 100 | $15.0K | 0.01% | +100 | New |
| Robbins Farley LLC | 100 | $15.0K | 0.01% | +100 | New |
| Beaird Harris Wealth Management, LLC | 100 | $15.0K | 0.01% | +100 | New |
| Parkside Financial Bank & Trust | 74 | $11.0K | 0.00% | 00.0% | Unchanged |
| Montag A & Associates Inc | 55 | $8.00K | 0.00% | −25−31.3% | Reduced |
| Ellevest, Inc. | 55 | $8.00K | 0.00% | −6−9.8% | Reduced |
| Meeder Asset Management Inc | 56 | $8.00K | 0.00% | +38+211.1% | Added |
| Focused Wealth Management, Inc | 40 | $6.00K | 0.00% | 00.0% | Unchanged |
| Stonebridge Financial Planning Group, LLC | 48 | $5.00K | 0.00% | 00.0% | Unchanged |
| Wagner Wealth Management, LLC | 35 | $5.00K | 0.00% | 00.0% | Unchanged |
| Bell Investment Advisors, Inc | 36 | $5.00K | 0.00% | −6−14.3% | Reduced |
| Bessemer Group Inc | 30 | $5.00K | 0.00% | +30 | New |
| Cambridge Trust Co | 32 | $5.00K | 0.00% | +32 | New |
| Quent Capital, LLC | 34 | $5.00K | 0.00% | +34 | New |
| Fieldpoint Private Securities, LLC | 25 | $4.00K | 0.00% | +25 | New |
| Geneos Wealth Management Inc. | 20 | $3.00K | 0.00% | 00.0% | Unchanged |
| Lee Financial Co | 18 | $3.00K | 0.00% | +18 | New |
| Elequin Capital LP | 17 | $3.00K | 0.00% | +17 | New |
| BerganKDV Wealth Management, LLC | 14 | $2.00K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 11 | $2.00K | 0.00% | 00.0% | Unchanged |
| Ancora Advisors, LLC | 14 | $2.00K | 0.00% | +14 | New |
| Signaturefd, LLC | 14 | $2.00K | 0.00% | +14 | New |
| Parallel Advisors, LLC | 13 | $2.00K | 0.00% | +13 | New |
| EverSource Wealth Advisors, LLC | 10 | $2.00K | 0.00% | +10 | New |
| CVA Family Office, LLC | 15 | $2.00K | 0.00% | +15 | New |
| Sutton Wealth Advisors Inc. | 7 | $1.05K | 0.00% | +7 | New |
| Evermay Wealth Management LLC | 9 | $1.00K | 0.00% | 00.0% | Unchanged |
| NEXT Financial Group, Inc | 7 | $1.00K | 0.00% | 00.0% | Unchanged |
| Sterling Investment Advisors, Ltd. | 7 | $1.00K | 0.00% | 00.0% | Unchanged |
| Glassman Wealth Services | 8 | $1.00K | 0.00% | +4+100.0% | Added |
| Versant Capital Management, Inc | 4 | $1.00K | 0.00% | 00.0% | Unchanged |
| Valley National Advisers Inc | 6 | $1.00K | 0.00% | +6 | New |
| Massmutual Trust Co FSB | 5 | $1.00K | 0.00% | +5 | New |
| AdvisorNet Financial, Inc | 5 | $1.00K | 0.00% | +5 | New |
| TD Private Client Wealth LLC | 5 | $753 | 0.00% | −61−92.4% | Reduced |
| Ci Investments Inc. | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Snowden Capital Advisors LLC | 6 | $0 | 0.00% | +6 | New |
| Sofos Investments, Inc. | 3,322 | – | – | +3,322 | New |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −118,993−100.0% | Sold out |
| Pier Capital, LLC | 0 | $0 | 0.00% | −60,422−100.0% | Sold out |
| CastleArk Alternatives, LLC | 0 | $0 | 0.00% | −30,990−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −17,200−100.0% | Sold out |
| Seven Eight Capital, LP | 0 | $0 | 0.00% | −13,514−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −9,543−100.0% | Sold out |
| Summit Global Investments | 0 | $0 | 0.00% | −7,700−100.0% | Sold out |
| Legal Advantage Investments, Inc. | 0 | $0 | 0.00% | −6,000−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −5,041−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −4,900−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −3,980−100.0% | Sold out |
| O'Neil Global Advisors, Inc. | 0 | $0 | 0.00% | −3,825−100.0% | Sold out |