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 |
|---|---|---|---|---|---|
| Occudo Quantitative Strategies LP | 2,684 | $312.0K | 0.03% | +2,684 | New |
| Roundview Capital LLC | 2,746 | $319.0K | 0.03% | −6,116−69.0% | Reduced |
| Shell Asset Management Co | 2,802 | $326.0K | 0.01% | +2,802 | New |
| Canal Capital Management, LLC | 3,000 | $349.0K | 0.09% | +3,000 | New |
| Northwestern Mutual Wealth Management Co | 3,202 | $373.0K | 0.00% | +456+16.6% | Added |
| Profund Advisors LLC | 3,220 | $374.0K | 0.02% | −468−12.7% | Reduced |
| Utah Retirement Systems | 3,300 | $384.0K | 0.01% | +100+3.1% | Added |
| Sigma Planning Corp | 3,313 | $385.0K | 0.01% | −301−8.3% | Reduced |
| Shelton Capital Management | 3,340 | $388.0K | 0.01% | −6,848−67.2% | Reduced |
| Walleye Trading LLC | 3,409 | $396.0K | 0.01% | +3,409 | New |
| Creative Planning | 3,413 | $397.0K | 0.00% | +405+13.5% | Added |
| Bluestein R H & Co | 3,513 | $409.0K | 0.02% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 3,611 | $420.0K | 0.11% | +3,611 | New |
| Versor Investments LP | 3,700 | $430.0K | 0.02% | +2,285+161.5% | Added |
| Lyon Street Capital, LLC | 3,750 | $436.0K | 0.65% | −4,250−53.1% | Reduced |
| Duality Advisers, LP | 3,767 | $438.0K | 0.05% | +3,767 | New |
| Paloma Partners Management Co | 3,993 | $464.0K | 0.04% | +3,993 | New |
| WealthTrust Axiom LLC | 4,000 | $465.0K | 0.15% | −1,000−20.0% | Reduced |
| First Manhattan Co | 4,000 | $465.0K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 4,017 | $467.0K | 0.06% | +4,017 | New |
| Vontobel Holding Ltd. | 4,287 | $500.0K | 0.00% | −1,000−18.9% | Reduced |
| Prudential Financial Inc | 4,572 | $532.0K | 0.00% | −23,923−84.0% | Reduced |
| Tocqueville Asset Management L.P. | 4,600 | $535.0K | 0.01% | 00.0% | Unchanged |
| Maryland State Retirement & Pension System | 4,800 | $558.0K | 0.02% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 4,973 | $578.0K | 0.01% | −99−2.0% | Reduced |
| Glaxis Capital Management, LLC | 5,000 | $581.0K | 0.82% | +5,000 | New |
| Exchange Traded Concepts, LLC | 5,022 | $584.0K | 0.01% | −2,814−35.9% | Reduced |
| Schechter Investment Advisors, LLC | 5,057 | $589.0K | 0.05% | −355−6.6% | Reduced |
| JB Capital LLC | 5,158 | $600.0K | 0.06% | +477+10.2% | Added |
| Zions Bancorporation, N.A. | 5,330 | $620.0K | 0.06% | +1,545+40.8% | Added |
| Connacht Asset Management LP | 5,460 | $635.0K | 0.94% | +1,359+33.1% | Added |
| Captrust Financial Advisors | 5,484 | $638.0K | 0.00% | +1,632+42.4% | Added |
| Quantbot Technologies LP | 5,564 | $647.0K | 0.06% | +5,079+1,047.2% | Added |
| JustInvest LLC | 5,574 | $648.0K | 0.03% | +364+7.0% | Added |
| Canada Pension Plan Investment Board | 5,616 | $654.0K | 0.00% | +184+3.4% | Added |
| Securian Asset Management, Inc | 5,652 | $657.0K | 0.01% | −100−1.7% | Reduced |
| Janney Montgomery Scott LLC | 5,665 | $659.0K | 0.00% | −100−1.7% | Reduced |
| Thoroughbred Financial Services, LLC | 5,968 | $694.0K | 0.11% | +3,210+116.4% | Added |
| Silvant Capital Management LLC | 6,011 | $699.0K | 0.13% | 00.0% | Unchanged |
| Crossmark Global Holdings, Inc. | 6,030 | $701.0K | 0.02% | +80+1.3% | Added |
| Ausdal Financial Partners, Inc. | 6,119 | $712.0K | 0.10% | +610+11.1% | Added |
| Donoghue Forlines LLC | 6,126 | $712.0K | 0.15% | +1,941+46.4% | Added |
| TrimTabs Asset Management, LLC | 6,126 | $712.0K | 0.24% | +6,126 | New |
| The PNC Financial Services Group, Inc. | 6,246 | $726.0K | 0.00% | +164+2.7% | Added |
| ProShare Advisors LLC | 6,325 | $735.0K | 0.00% | −1,007−13.7% | Reduced |
| Tributary Capital Management, LLC | 6,400 | $744.0K | 0.06% | −8,000−55.6% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 6,519 | $758.0K | 0.00% | −500−7.1% | Reduced |
| Dynamic Technology Lab Private Ltd | 6,580 | $766.0K | 0.09% | +6,580 | New |
| Verition Fund Management LLC | 6,663 | $775.0K | 0.01% | −301−4.3% | Reduced |
| Cresset Asset Management, LLC | 6,829 | $794.0K | 0.01% | −410−5.7% | Reduced |
| Diversified Trust Co | 7,052 | $820.0K | 0.03% | +825+13.2% | Added |
| Level Four Advisory Services, LLC | 7,158 | $832.0K | 0.07% | +5,293+283.8% | Added |
| Partners Group Holding AG | 7,331 | $853.0K | 0.04% | +2,160+41.8% | Added |
| Twinbeech Capital LP | 7,350 | $855.0K | 0.04% | +7,350 | New |
| D. E. Shaw & Co., Inc. | 7,444 | $866.0K | 0.00% | −11,478−60.7% | Reduced |
| Wolverine Trading, LLC | 7,437 | $868.0K | 0.03% | +7,437 | New |
| Jump Financial, LLC | 7,669 | $892.0K | 0.04% | +7,669 | New |
| HighTower Advisors, LLC | 7,787 | $900.0K | 0.00% | −408−5.0% | Reduced |
| Graham Capital Management, L.P. | 7,750 | $901.0K | 0.04% | +7,750 | New |
| Oppenheimer & Co Inc | 7,848 | $912.0K | 0.02% | +2,812+55.8% | Added |
| AGF Investments LLC | 7,859 | $914.0K | 0.08% | +7,859 | New |
| Mercer Global Advisors Inc | 7,908 | $920.0K | 0.01% | +1,212+18.1% | Added |
| Greenwood Capital Associates LLC | 8,032 | $934.0K | 0.25% | +344+4.5% | Added |
| Public Employees Retirement Association of Colorado | 8,105 | $943.0K | 0.00% | 00.0% | Unchanged |
| Echo Street Capital Management LLC | 8,153 | $948.0K | 0.01% | +8,153 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,264 | $961.0K | 0.00% | −891−9.7% | Reduced |
| Teachers Retirement System of the State of Kentucky | 8,400 | $977.0K | 0.01% | −600−6.7% | Reduced |
| Manchester Capital Management LLC | 8,573 | $997.0K | 0.14% | 00.0% | Unchanged |
| Ontario Teachers Pension Plan Board | 8,790 | $1.02M | 0.01% | +3,792+75.9% | Added |
| Lattice Capital Management, LLC | 9,200 | $1.06M | 1.54% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 9,128 | $1.06M | 0.04% | −1,662−15.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 9,491 | $1.10M | 0.00% | +9,491 | New |
| Diametric Capital, LP | 9,500 | $1.10M | 0.61% | +9,500 | New |
| Virginia Retirement Systems Et Al | 9,500 | $1.10M | 0.01% | +1,000+11.8% | Added |
| Brookfield Asset Management Inc. | 9,697 | $1.13M | 0.00% | +3,972+69.4% | Added |
| Commonwealth Equity Services, LLC | 9,834 | $1.14M | 0.00% | −90−0.9% | Reduced |
| Weiss Multi-Strategy Advisers LLC | 10,000 | $1.16M | 0.03% | +2,039+25.6% | Added |
| Tower Research Capital LLC (TRC) | 10,207 | $1.19M | 0.01% | +3,612+54.8% | Added |
| STRS Ohio | 10,244 | $1.19M | 0.00% | +1,847+22.0% | Added |
| 1492 Capital Management LLC | 10,372 | $1.21M | 0.64% | −121−1.2% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 10,552 | $1.23M | 0.03% | +20+0.2% | Added |
| US Bancorp | 10,569 | $1.23M | 0.00% | +853+8.8% | Added |
| Russell Investments Group, Ltd. | 10,599 | $1.23M | 0.00% | +4,633+77.7% | Added |
| Harbor Capital Advisors, Inc. | 10,729 | $1.25M | 0.59% | −1,565−12.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 10,974 | $1.28M | 0.01% | −6,021−35.4% | Reduced |
| Handelsbanken Fonder AB | 11,000 | $1.28M | 0.01% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 11,023 | $1.28M | 0.01% | +1,823+19.8% | Added |
| B. Metzler seel. Sohn & Co. AG | 11,166 | $1.30M | 0.02% | +11,166 | New |
| Group One Trading, L.P. | 11,445 | $1.33M | 0.03% | +11,445 | New |
| Strategic Wealth Partners, Ltd. | 11,508 | $1.34M | 0.26% | −674−5.5% | Reduced |
| M&G Investment Management Ltd | 12,155 | $1.41M | 0.00% | 00.0% | Unchanged |
| Walleye Capital LLC | 12,545 | $1.46M | 0.04% | +6,566+109.8% | Added |
| Advisor Group Holdings, Inc. | 13,944 | $1.47M | 0.00% | −15−0.1% | Reduced |
| Xponance, Inc. | 12,930 | $1.50M | 0.03% | −240−1.8% | Reduced |
| New Mexico Educational Retirement Board | 13,000 | $1.51M | 0.06% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 13,141 | $1.53M | 0.01% | +1,008+8.3% | Added |
| Bridge City Capital, LLC | 13,171 | $1.53M | 0.72% | −64−0.5% | Reduced |
| Winton Group Ltd | 13,277 | $1.54M | 0.08% | −1,536−10.4% | Reduced |
| Cetera Advisor Networks LLC | 13,418 | $1.56M | 0.02% | −685−4.9% | Reduced |
| Gotham Asset Management, LLC | 13,417 | $1.56M | 0.05% | +6,644+98.1% | Added |