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 |
|---|---|---|---|---|---|
| Ci Investments Inc. | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Snowden Capital Advisors LLC | 6 | $0 | 0.00% | +6 | New |
| TD Private Client Wealth LLC | 5 | $753 | 0.00% | −61−92.4% | Reduced |
| 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 |
| Sutton Wealth Advisors Inc. | 7 | $1.05K | 0.00% | +7 | 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 |
| 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 |
| Fieldpoint Private Securities, LLC | 25 | $4.00K | 0.00% | +25 | New |
| 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 |
| Focused Wealth Management, Inc | 40 | $6.00K | 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 |
| Parkside Financial Bank & Trust | 74 | $11.0K | 0.00% | 00.0% | Unchanged |
| 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 |
| Quadrant Capital Group LLC | 108 | $16.0K | 0.00% | +5+4.9% | Added |
| First Horizon Advisors, Inc. | 111 | $17.0K | 0.00% | 00.0% | Unchanged |
| Ellis Investment Partners, LLC | 130 | $19.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 175 | $21.0K | 0.00% | +25+16.7% | Added |
| Fortitude Advisory Group L.L.C. | 148 | $22.0K | 0.01% | +148 | New |
| FourThought Financial, LLC | 200 | $30.0K | 0.00% | −800−80.0% | Reduced |
| Investmark Advisory Group LLC | 225 | $33.0K | 0.03% | +225 | New |
| Byrne Asset Management LLC | 225 | $34.0K | 0.02% | +225 | New |
| TCI Wealth Advisors, Inc. | 234 | $35.0K | 0.01% | +51+27.9% | Added |
| Stephens Inc | 241 | $36.0K | 0.00% | 00.0% | Unchanged |
| Kistler-Tiffany Companies, LLC | 245 | $37.0K | 0.01% | 00.0% | Unchanged |
| Patriot Financial Group Insurance Agency, LLC | 284 | $43.0K | 0.01% | +42+17.4% | Added |
| 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 |
| Toth Financial Advisory Corp | 325 | $49.0K | 0.01% | 00.0% | Unchanged |
| IFP Advisors, Inc | 361 | $54.0K | 0.00% | 00.0% | Unchanged |
| KRS Capital Management, LLC | 400 | $60.0K | 0.05% | +400 | New |
| FNY Investment Advisers, LLC | 414 | $62.0K | 0.03% | +414 | New |
| Harvest Fund Management Co., Ltd | 437 | $66.0K | 0.01% | +437 | New |
| CWM, LLC | 455 | $68.0K | 0.00% | +455 | New |
| Quantbot Technologies LP | 485 | $73.0K | 0.01% | +485 | New |
| Neo Ivy Capital Management | 589 | $89.0K | 0.13% | +447+314.8% | Added |
| Banque Cantonale Vaudoise | 642 | $97.0K | 0.00% | 00.0% | Unchanged |
| Nkcfo LLC | 655 | $99.0K | 0.03% | +655 | New |
| Edmond de Rothschild Holding S.A. | 686 | $103.0K | 0.00% | +686 | New |
| Maverick Capital LtdSuperinvestorMaverick Capital | 721 | $109.0K | 0.00% | −6,599−90.2% | Reduced |
| FinTrust Capital Advisors, LLC | 755 | $114.0K | 0.03% | 00.0% | Unchanged |
| Altshuler Shaham Ltd | 838 | $126.0K | 0.00% | +399+90.9% | Added |
| Lazard Asset Management LLC | 953 | $143.0K | 0.00% | +62+7.0% | Added |
| Salem Investment Counselors Inc | 1,000 | $151.0K | 0.01% | 00.0% | Unchanged |
| National Bank of Canada | 1,028 | $155.0K | 0.00% | +1,028 | New |
| PEAK6 Investments LLC | 1,069 | $161.0K | 0.00% | −1,403−56.8% | Reduced |
| GPS Wealth Strategies Group, LLC | 1,098 | $165.0K | 0.04% | 00.0% | Unchanged |
| Covestor Ltd | 1,258 | $189.0K | 0.26% | +1,258 | New |
| Leonteq Securities AG | 1,290 | $194.2K | 0.01% | +1,290 | New |
| Point72 Hong Kong Ltd | 1,315 | $198.0K | 0.02% | +1,315 | New |
| Meristem Family Wealth, LLC | 1,342 | $202.0K | 0.02% | +1,342 | New |
| Derbend Asset Management | 1,347 | $203.0K | 0.20% | +1,347 | New |
| Coldstream Capital Management Inc | 1,395 | $210.0K | 0.01% | +1,395 | New |
| Versor Investments LP | 1,415 | $213.0K | 0.01% | +1,415 | New |
| 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 |
| American Portfolios Advisors | 1,460 | $219.8K | 0.01% | +1,301+818.2% | Added |
| Cetera Investment Advisers | 1,465 | $221.0K | 0.00% | +1,465 | New |
| Merriman Wealth Management, LLC | 1,500 | $226.0K | 0.02% | +1,500 | New |
| 6 Meridian | 1,509 | $227.0K | 0.02% | +1,509 | New |
| Lido Advisors, LLC | 1,515 | $228.0K | 0.00% | +1,515 | New |
| CIBC World Markets Inc. | 1,594 | $240.0K | 0.00% | −145−8.3% | Reduced |
| Two Sigma Securities, LLC | 1,603 | $241.0K | 0.05% | +1,603 | New |
| Flagship Harbor Advisors, LLC | 1,683 | $253.0K | 0.02% | +1,683 | New |
| LVW Advisors, LLC | 1,692 | $255.0K | 0.04% | +1,692 | New |
| Magnetar Financial LLC | 1,838 | $277.0K | 0.00% | −18,008−90.7% | Reduced |
| Caxton Associates LP | 1,851 | $279.0K | 0.04% | +1,851 | New |
| Keebeck Alpha, LP | 1,857 | $280.0K | 0.10% | −680−26.8% | Reduced |
| Level Four Advisory Services, LLC | 1,865 | $281.0K | 0.02% | +1,865 | New |
| Mount Yale Investment Advisors, LLC | 1,957 | $295.0K | 0.03% | −35−1.8% | Reduced |
| Los Angeles Capital Management LLC | 1,980 | $298.0K | 0.00% | −174−8.1% | Reduced |
| Bridgewater Advisors Inc. | 2,000 | $301.0K | 0.07% | −100−4.8% | Reduced |
| Axiom Investment Management LLC | 2,000 | $301.0K | 0.29% | 00.0% | Unchanged |