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 |
|---|---|---|---|---|---|
| State of Alaska, Department of Revenue | 9,200 | $1.38M | 0.01% | −475−4.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,155 | $1.38M | 0.01% | +2,845+45.1% | Added |
| Pacer Advisors, Inc. | 9,034 | $1.36M | 0.01% | +4,493+98.9% | Added |
| 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 |
| Roundview Capital LLC | 8,862 | $1.33M | 0.13% | 00.0% | Unchanged |
| Baird Financial Group, Inc. | 8,619 | $1.30M | 0.00% | −433−4.8% | Reduced |
| Manchester Capital Management LLC | 8,573 | $1.29M | 0.17% | 00.0% | Unchanged |
| Virginia Retirement Systems Et Al | 8,500 | $1.28M | 0.01% | −2,000−19.0% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 8,433 | $1.27M | 0.05% | 00.0% | Unchanged |
| STRS Ohio | 8,397 | $1.26M | 0.00% | +8,397 | New |
| HighTower Advisors, LLC | 8,195 | $1.24M | 0.00% | +1,570+23.7% | Added |
| Public Employees Retirement Association of Colorado | 8,105 | $1.22M | 0.00% | 00.0% | Unchanged |
| Lyon Street Capital, LLC | 8,000 | $1.20M | 1.20% | +8,000 | New |
| Weiss Multi-Strategy Advisers LLC | 7,961 | $1.20M | 0.03% | −2,451−23.5% | Reduced |
| Exchange Traded Concepts, LLC | 7,836 | $1.18M | 0.02% | +7,836 | New |
| Greenwood Capital Associates LLC | 7,688 | $1.16M | 0.16% | +37+0.5% | Added |
| Calamos Advisors LLC | 7,661 | $1.15M | 0.00% | +7,661 | New |
| Avestar Capital, LLC | 7,639 | $1.15M | 0.21% | −1,236−13.9% | Reduced |
| ProShare Advisors LLC | 7,332 | $1.10M | 0.00% | +1,485+25.4% | Added |
| Cresset Asset Management, LLC | 7,239 | $1.09M | 0.01% | +1,239+20.7% | Added |
| AlphaCrest Capital Management LLC | 7,121 | $1.07M | 0.04% | −5,039−41.4% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 7,019 | $1.06M | 0.00% | +55+0.8% | Added |
| Verition Fund Management LLC | 6,964 | $1.05M | 0.01% | +144+2.1% | Added |
| Virtu Financial LLC | 6,877 | $1.03M | 0.11% | +6,877 | New |
| Gotham Asset Management, LLC | 6,773 | $1.02M | 0.03% | +6,773 | New |
| Mercer Global Advisors Inc | 6,696 | $1.01M | 0.01% | −7,154−51.7% | Reduced |
| Tower Research Capital LLC (TRC) | 6,595 | $992.0K | 0.02% | +3,236+96.3% | Added |
| Diversified Trust Co | 6,227 | $937.0K | 0.03% | −265−4.1% | Reduced |
| The PNC Financial Services Group, Inc. | 6,082 | $916.0K | 0.00% | +482+8.6% | Added |
| Silvant Capital Management LLC | 6,011 | $905.0K | 0.15% | −1,296−17.7% | Reduced |
| Walleye Capital LLC | 5,979 | $900.0K | 0.03% | −2,268−27.5% | Reduced |
| Russell Investments Group, Ltd. | 5,966 | $897.0K | 0.00% | −2,193−26.9% | Reduced |
| Crossmark Global Holdings, Inc. | 5,950 | $896.0K | 0.02% | +4,210+242.0% | Added |
| Columbia Asset Management | 5,875 | $884.0K | 0.18% | −1,390−19.1% | Reduced |
| Janney Montgomery Scott LLC | 5,765 | $868.0K | 0.00% | +1,066+22.7% | Added |
| Securian Asset Management, Inc | 5,752 | $866.0K | 0.02% | +100+1.8% | Added |
| Brookfield Asset Management Inc. | 5,725 | $862.0K | 0.00% | +5,725 | New |
| Pictet & Cie (Europe) SA | 5,528 | $832.0K | 0.03% | +610+12.4% | Added |
| Ausdal Financial Partners, Inc. | 5,509 | $829.0K | 0.11% | −2,001−26.6% | Reduced |
| Canada Pension Plan Investment Board | 5,432 | $818.0K | 0.00% | +1,168+27.4% | Added |
| Schechter Investment Advisors, LLC | 5,412 | $815.0K | 0.07% | +5,412 | New |
| Vontobel Holding Ltd. | 5,287 | $803.0K | 0.01% | +1,370+35.0% | Added |
| JustInvest LLC | 5,210 | $784.0K | 0.05% | +5,210 | New |
| Partners Group Holding AG | 5,171 | $778.0K | 0.04% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 5,072 | $763.0K | 0.01% | +5,072 | New |
| Oppenheimer & Co Inc | 5,036 | $758.0K | 0.01% | −1,305−20.6% | Reduced |
| 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 |
| Maryland State Retirement & Pension System | 4,800 | $722.0K | 0.02% | 00.0% | Unchanged |
| JB Capital LLC | 4,681 | $704.6K | 0.07% | +919+24.4% | Added |
| Spearhead Capital Advisors, LLC | 4,621 | $696.0K | 0.08% | +35+0.8% | Added |
| Tocqueville Asset Management L.P. | 4,600 | $692.0K | 0.01% | 00.0% | Unchanged |
| Range Financial Group LLC | 4,448 | $670.0K | 0.44% | +294+7.1% | Added |
| FORA Capital, LLC | 4,345 | $654.0K | 0.25% | +170+4.1% | Added |
| Synovus Financial Corp | 4,291 | $650.0K | 0.01% | +152+3.7% | Added |
| Fifth Third Bancorp | 4,192 | $631.0K | 0.00% | +4,136+7,385.7% | Added |
| Donoghue Forlines LLC | 4,185 | $630.0K | 0.11% | +4,185 | New |
| Newbridge Financial Services Group, Inc. | 4,180 | $629.0K | 0.30% | −280−6.3% | Reduced |
| Aigen Investment Management, LP | 4,060 | $618.0K | 0.04% | +4,060 | New |
| Connacht Asset Management LP | 4,101 | $617.0K | 0.71% | +1,441+54.2% | Added |
| First Manhattan Co | 4,000 | $602.0K | 0.00% | 00.0% | Unchanged |
| Landscape Capital Management, L.L.C. | 3,955 | $595.0K | 0.08% | +3,955 | New |
| Captrust Financial Advisors | 3,852 | $580.0K | 0.00% | +84+2.2% | Added |
| Prelude Capital Management, LLC | 3,845 | $579.0K | 0.03% | +326+9.3% | Added |
| AQR Capital Management LLC | 3,818 | $575.0K | 0.00% | +2,113+123.9% | Added |
| Zions Bancorporation, N.A. | 3,785 | $570.0K | 0.05% | +662+21.2% | Added |
| TKG Advisors, LLC | 3,700 | $557.0K | 0.44% | +3,700 | New |
| Profund Advisors LLC | 3,688 | $555.0K | 0.02% | −80−2.1% | Reduced |
| Sigma Planning Corp | 3,614 | $544.0K | 0.02% | −50−1.4% | Reduced |
| Bluestein R H & Co | 3,513 | $529.0K | 0.02% | 00.0% | Unchanged |
| G&S Capital LLC | 3,227 | $486.0K | 0.24% | +3,227 | New |
| Utah Retirement Systems | 3,200 | $482.0K | 0.01% | 00.0% | Unchanged |
| Creative Planning | 3,008 | $453.0K | 0.00% | −163−5.1% | Reduced |
| Twin Tree Management, LP | 2,926 | $440.0K | 0.01% | −42,247−93.5% | Reduced |
| Thoroughbred Financial Services, LLC | 2,758 | $415.0K | 0.09% | +435+18.7% | Added |
| Northwestern Mutual Wealth Management Co | 2,746 | $413.0K | 0.00% | −56−2.0% | Reduced |
| Quantinno Capital Management LP | 2,735 | $412.0K | 0.07% | +2,735 | New |
| Laurel Wealth Advisors, Inc. | 2,652 | $400.0K | 0.03% | +2,652 | New |
| CIBC Asset Management Inc | 2,536 | $382.0K | 0.00% | +84+3.4% | Added |
| MML Investors Services, LLC | 2,467 | $371.0K | 0.00% | −96−3.7% | Reduced |
| Aubrey Capital Management Ltd | 2,205 | $331.9K | 0.13% | 00.0% | Unchanged |
| 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 |
| Appleton Partners Inc | 2,080 | $313.0K | 0.02% | −145−6.5% | 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 |
| 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 |
| Los Angeles Capital Management LLC | 1,980 | $298.0K | 0.00% | −174−8.1% | Reduced |
| Mount Yale Investment Advisors, LLC | 1,957 | $295.0K | 0.03% | −35−1.8% | Reduced |
| Level Four Advisory Services, LLC | 1,865 | $281.0K | 0.02% | +1,865 | New |
| Keebeck Alpha, LP | 1,857 | $280.0K | 0.10% | −680−26.8% | Reduced |
| Caxton Associates LP | 1,851 | $279.0K | 0.04% | +1,851 | New |
| Magnetar Financial LLC | 1,838 | $277.0K | 0.00% | −18,008−90.7% | Reduced |
| LVW Advisors, LLC | 1,692 | $255.0K | 0.04% | +1,692 | New |
| Flagship Harbor Advisors, LLC | 1,683 | $253.0K | 0.02% | +1,683 | New |
| Two Sigma Securities, LLC | 1,603 | $241.0K | 0.05% | +1,603 | New |
| CIBC World Markets Inc. | 1,594 | $240.0K | 0.00% | −145−8.3% | Reduced |
| Lido Advisors, LLC | 1,515 | $228.0K | 0.00% | +1,515 | New |