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 |
|---|---|---|---|---|---|
| Clarkston Capital Partners, LLC | 2,000 | $301.0K | 0.01% | +198+11.0% | Added |
| M&T Bank Corp | 1,995 | $301.0K | 0.00% | +1,995 | New |
| Appleton Partners Inc | 2,080 | $313.0K | 0.02% | −145−6.5% | Reduced |
| Truist Financial Corp | 2,096 | $315.0K | 0.00% | +171+8.9% | Added |
| Eqis Capital Management, Inc. | 2,093 | $315.0K | 0.02% | +2,093 | New |
| Aubrey Capital Management Ltd | 2,205 | $331.9K | 0.13% | 00.0% | Unchanged |
| MML Investors Services, LLC | 2,467 | $371.0K | 0.00% | −96−3.7% | Reduced |
| CIBC Asset Management Inc | 2,536 | $382.0K | 0.00% | +84+3.4% | Added |
| Laurel Wealth Advisors, Inc. | 2,652 | $400.0K | 0.03% | +2,652 | New |
| Quantinno Capital Management LP | 2,735 | $412.0K | 0.07% | +2,735 | New |
| Northwestern Mutual Wealth Management Co | 2,746 | $413.0K | 0.00% | −56−2.0% | Reduced |
| Thoroughbred Financial Services, LLC | 2,758 | $415.0K | 0.09% | +435+18.7% | Added |
| Twin Tree Management, LP | 2,926 | $440.0K | 0.01% | −42,247−93.5% | Reduced |
| Creative Planning | 3,008 | $453.0K | 0.00% | −163−5.1% | Reduced |
| Utah Retirement Systems | 3,200 | $482.0K | 0.01% | 00.0% | Unchanged |
| G&S Capital LLC | 3,227 | $486.0K | 0.24% | +3,227 | New |
| Bluestein R H & Co | 3,513 | $529.0K | 0.02% | 00.0% | Unchanged |
| Sigma Planning Corp | 3,614 | $544.0K | 0.02% | −50−1.4% | Reduced |
| Profund Advisors LLC | 3,688 | $555.0K | 0.02% | −80−2.1% | Reduced |
| TKG Advisors, LLC | 3,700 | $557.0K | 0.44% | +3,700 | New |
| Zions Bancorporation, N.A. | 3,785 | $570.0K | 0.05% | +662+21.2% | Added |
| AQR Capital Management LLC | 3,818 | $575.0K | 0.00% | +2,113+123.9% | Added |
| Prelude Capital Management, LLC | 3,845 | $579.0K | 0.03% | +326+9.3% | Added |
| Captrust Financial Advisors | 3,852 | $580.0K | 0.00% | +84+2.2% | Added |
| Landscape Capital Management, L.L.C. | 3,955 | $595.0K | 0.08% | +3,955 | New |
| First Manhattan Co | 4,000 | $602.0K | 0.00% | 00.0% | Unchanged |
| Connacht Asset Management LP | 4,101 | $617.0K | 0.71% | +1,441+54.2% | Added |
| Aigen Investment Management, LP | 4,060 | $618.0K | 0.04% | +4,060 | New |
| Newbridge Financial Services Group, Inc. | 4,180 | $629.0K | 0.30% | −280−6.3% | Reduced |
| Donoghue Forlines LLC | 4,185 | $630.0K | 0.11% | +4,185 | New |
| Fifth Third Bancorp | 4,192 | $631.0K | 0.00% | +4,136+7,385.7% | Added |
| Synovus Financial Corp | 4,291 | $650.0K | 0.01% | +152+3.7% | Added |
| FORA Capital, LLC | 4,345 | $654.0K | 0.25% | +170+4.1% | Added |
| Range Financial Group LLC | 4,448 | $670.0K | 0.44% | +294+7.1% | Added |
| Tocqueville Asset Management L.P. | 4,600 | $692.0K | 0.01% | 00.0% | Unchanged |
| Spearhead Capital Advisors, LLC | 4,621 | $696.0K | 0.08% | +35+0.8% | Added |
| JB Capital LLC | 4,681 | $704.6K | 0.07% | +919+24.4% | Added |
| Maryland State Retirement & Pension System | 4,800 | $722.0K | 0.02% | 00.0% | Unchanged |
| WealthTrust Axiom LLC | 5,000 | $752.0K | 0.24% | 00.0% | Unchanged |
| Ontario Teachers Pension Plan Board | 4,998 | $752.0K | 0.01% | +4,998 | New |
| Oppenheimer & Co Inc | 5,036 | $758.0K | 0.01% | −1,305−20.6% | Reduced |
| Brinker Capital Investments, LLC | 5,072 | $763.0K | 0.01% | +5,072 | New |
| Partners Group Holding AG | 5,171 | $778.0K | 0.04% | 00.0% | Unchanged |
| JustInvest LLC | 5,210 | $784.0K | 0.05% | +5,210 | New |
| Vontobel Holding Ltd. | 5,287 | $803.0K | 0.01% | +1,370+35.0% | Added |
| Schechter Investment Advisors, LLC | 5,412 | $815.0K | 0.07% | +5,412 | New |
| Canada Pension Plan Investment Board | 5,432 | $818.0K | 0.00% | +1,168+27.4% | Added |
| Ausdal Financial Partners, Inc. | 5,509 | $829.0K | 0.11% | −2,001−26.6% | Reduced |
| Pictet & Cie (Europe) SA | 5,528 | $832.0K | 0.03% | +610+12.4% | Added |
| Brookfield Asset Management Inc. | 5,725 | $862.0K | 0.00% | +5,725 | New |
| Securian Asset Management, Inc | 5,752 | $866.0K | 0.02% | +100+1.8% | Added |
| Janney Montgomery Scott LLC | 5,765 | $868.0K | 0.00% | +1,066+22.7% | Added |
| Columbia Asset Management | 5,875 | $884.0K | 0.18% | −1,390−19.1% | Reduced |
| Crossmark Global Holdings, Inc. | 5,950 | $896.0K | 0.02% | +4,210+242.0% | Added |
| Russell Investments Group, Ltd. | 5,966 | $897.0K | 0.00% | −2,193−26.9% | Reduced |
| Walleye Capital LLC | 5,979 | $900.0K | 0.03% | −2,268−27.5% | Reduced |
| Silvant Capital Management LLC | 6,011 | $905.0K | 0.15% | −1,296−17.7% | Reduced |
| The PNC Financial Services Group, Inc. | 6,082 | $916.0K | 0.00% | +482+8.6% | Added |
| Diversified Trust Co | 6,227 | $937.0K | 0.03% | −265−4.1% | Reduced |
| Tower Research Capital LLC (TRC) | 6,595 | $992.0K | 0.02% | +3,236+96.3% | Added |
| Mercer Global Advisors Inc | 6,696 | $1.01M | 0.01% | −7,154−51.7% | Reduced |
| Gotham Asset Management, LLC | 6,773 | $1.02M | 0.03% | +6,773 | New |
| Virtu Financial LLC | 6,877 | $1.03M | 0.11% | +6,877 | New |
| Verition Fund Management LLC | 6,964 | $1.05M | 0.01% | +144+2.1% | Added |
| Cambridge Investment Research Advisors, Inc. | 7,019 | $1.06M | 0.00% | +55+0.8% | Added |
| AlphaCrest Capital Management LLC | 7,121 | $1.07M | 0.04% | −5,039−41.4% | Reduced |
| Cresset Asset Management, LLC | 7,239 | $1.09M | 0.01% | +1,239+20.7% | Added |
| ProShare Advisors LLC | 7,332 | $1.10M | 0.00% | +1,485+25.4% | Added |
| Avestar Capital, LLC | 7,639 | $1.15M | 0.21% | −1,236−13.9% | Reduced |
| Calamos Advisors LLC | 7,661 | $1.15M | 0.00% | +7,661 | New |
| Greenwood Capital Associates LLC | 7,688 | $1.16M | 0.16% | +37+0.5% | Added |
| Exchange Traded Concepts, LLC | 7,836 | $1.18M | 0.02% | +7,836 | New |
| Weiss Multi-Strategy Advisers LLC | 7,961 | $1.20M | 0.03% | −2,451−23.5% | Reduced |
| Lyon Street Capital, LLC | 8,000 | $1.20M | 1.20% | +8,000 | New |
| Public Employees Retirement Association of Colorado | 8,105 | $1.22M | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 8,195 | $1.24M | 0.00% | +1,570+23.7% | Added |
| STRS Ohio | 8,397 | $1.26M | 0.00% | +8,397 | New |
| BI Asset Management Fondsmaeglerselskab A/S | 8,433 | $1.27M | 0.05% | 00.0% | Unchanged |
| Virginia Retirement Systems Et Al | 8,500 | $1.28M | 0.01% | −2,000−19.0% | Reduced |
| Manchester Capital Management LLC | 8,573 | $1.29M | 0.17% | 00.0% | Unchanged |
| Baird Financial Group, Inc. | 8,619 | $1.30M | 0.00% | −433−4.8% | Reduced |
| Roundview Capital LLC | 8,862 | $1.33M | 0.13% | 00.0% | Unchanged |
| Teachers Retirement System of the State of Kentucky | 9,000 | $1.35M | 0.01% | 00.0% | Unchanged |
| Precept Management LLC | 9,000 | $1.35M | 1.41% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 9,034 | $1.36M | 0.01% | +4,493+98.9% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,155 | $1.38M | 0.01% | +2,845+45.1% | Added |
| State of Alaska, Department of Revenue | 9,200 | $1.38M | 0.01% | −475−4.9% | Reduced |
| Lattice Capital Management, LLC | 9,200 | $1.39M | 1.43% | +9,200 | New |
| Quantitative Investment Management, LLC | 9,548 | $1.44M | 0.20% | −10,057−51.3% | Reduced |
| US Bancorp | 9,716 | $1.46M | 0.00% | +477+5.2% | Added |
| Commonwealth Equity Services, LLC | 9,924 | $1.49M | 0.00% | +137+1.4% | Added |
| Shelton Capital Management | 10,188 | $1.53M | 0.05% | +2,988+41.5% | Added |
| 1492 Capital Management LLC | 10,493 | $1.58M | 0.78% | −50.0% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 10,532 | $1.58M | 0.03% | +120+1.2% | Added |
| ETF Managers Group, LLC | 10,654 | $1.62M | 0.03% | −763−6.7% | Reduced |
| Engineers Gate Manager LP | 10,790 | $1.62M | 0.07% | −1,926−15.1% | Reduced |
| Jane Street Group, LLC | 10,885 | $1.64M | 0.00% | +10,885 | New |
| Handelsbanken Fonder AB | 11,000 | $1.66M | 0.01% | −100−0.9% | Reduced |
| Teacher Retirement System of Texas | 12,133 | $1.83M | 0.01% | +2,056+20.4% | Added |
| Strategic Wealth Partners, Ltd. | 12,182 | $1.83M | 0.35% | +394+3.3% | Added |