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 |
|---|---|---|---|---|---|
| Cinctive Capital Management LP | 67,741 | $10.2M | 0.48% | +36,968+120.1% | Added |
| Next Century Growth Investors LLC | 67,572 | $10.2M | 0.92% | −3,255−4.6% | Reduced |
| Frontier Capital Management Co LLC | 66,788 | $10.1M | 0.08% | −938−1.4% | Reduced |
| State of Wisconsin Investment Board | 64,238 | $9.67M | 0.02% | −97−0.2% | Reduced |
| Assenagon Asset Management S.A. | 60,776 | $9.15M | 0.03% | +16,140+36.2% | Added |
| Schroder Investment Management Group | 60,253 | $9.07M | 0.01% | +3,346+5.9% | Added |
| Susquehanna Fundamental Investments, LLC | 57,306 | $8.63M | 0.23% | +3,225+6.0% | Added |
| Mirabella Financial Services LLP | 54,110 | $8.14M | 0.83% | +25,249+87.5% | Added |
| New York State Teachers Retirement System | 53,271 | $8.02M | 0.02% | +49,684+1,385.1% | Added |
| Formula Growth Ltd | 52,429 | $7.89M | 1.40% | −3,556−6.4% | Reduced |
| Capital Fund Management S.A. | 50,662 | $7.63M | 0.20% | +35,568+235.6% | Added |
| State of Tennessee, Treasury Department | 50,000 | $7.53M | 0.03% | +20,000+66.7% | Added |
| Capital International Ltd | 49,298 | $7.42M | 0.38% | +12,969+35.7% | Added |
| Capital International Inc | 47,861 | $7.20M | 0.07% | +3,293+7.4% | Added |
| Amalgamated Bank | 47,007 | $7.08M | 0.05% | +2,437+5.5% | Added |
| Susquehanna International Group, LLP | 46,781 | $7.04M | 0.01% | +28,134+150.9% | Added |
| Penserra Capital Management LLC | 46,731 | $7.03M | 0.15% | +46,731 | New |
| Texas Permanent School Fund | 45,807 | $6.89M | 0.08% | −818−1.8% | Reduced |
| Citigroup Inc | 44,490 | $6.70M | 0.01% | −9,907−18.2% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 44,158 | $6.65M | 0.04% | +39,758+903.6% | Added |
| First Republic Investment Management, Inc. | 43,019 | $6.47M | 0.01% | −2,289−5.1% | Reduced |
| Driehaus Capital Management LLC | 42,164 | $6.35M | 0.06% | +42,164 | New |
| ExodusPoint Capital Management, LP | 40,308 | $6.07M | 0.07% | −2,650−6.2% | Reduced |
| Stifel Financial Corp | 40,287 | $6.06M | 0.01% | +16,081+66.4% | Added |
| State of New Jersey Common Pension Fund D | 36,979 | $5.57M | 0.02% | −797−2.1% | Reduced |
| Royal Bank of Canada | 36,127 | $5.44M | 0.00% | +3,929+12.2% | Added |
| Candriam Luxembourg S.C.A. | 35,688 | $5.37M | 0.03% | +101+0.3% | Added |
| Public Employees Retirement System of Ohio | 35,478 | $5.34M | 0.02% | −1,172−3.2% | Reduced |
| Algert Global LLC | 34,319 | $5.17M | 0.65% | −2,099−5.8% | Reduced |
| Yousif Capital Management, LLC | 33,777 | $5.08M | 0.05% | +33,777 | New |
| Great West Life Assurance Co | 32,080 | $4.83M | 0.01% | +2,475+8.4% | Added |
| Granite Point Capital Management, L.P. | 31,708 | $4.77M | 1.86% | +14,000+79.1% | Added |
| Kennedy Capital Management, Inc. | 31,004 | $4.67M | 0.10% | −1,075−3.4% | Reduced |
| MetLife Investment Management | 30,789 | $4.63M | 0.04% | +509+1.7% | Added |
| Raymond James Financial Services Advisors, Inc. | 30,692 | $4.62M | 0.01% | +8,224+36.6% | Added |
| Tudor Investment Corp Et Al | 29,551 | $4.45M | 0.09% | +29,551 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 29,000 | $4.37M | 0.01% | +28,291+3,990.3% | Added |
| PDT Partners, LLC | 28,220 | $4.25M | 0.32% | −22,783−44.7% | Reduced |
| Prudential Financial Inc | 28,495 | $4.19M | 0.01% | −867−3.0% | Reduced |
| SG Americas Securities, LLC | 25,544 | $3.85M | 0.03% | −4,092−13.8% | Reduced |
| LPL Financial LLC | 25,234 | $3.80M | 0.00% | −3,730−12.9% | Reduced |
| Spouting Rock Asset Management, LLC | 25,193 | $3.79M | 2.97% | −5,493−17.9% | Reduced |
| Crown Advisors Management, Inc. | 25,000 | $3.76M | 2.42% | 00.0% | Unchanged |
| Bank of Montreal | 23,828 | $3.65M | 0.00% | −98−0.4% | Reduced |
| Renaissance Technologies LLC | 24,227 | $3.65M | 0.00% | −215,319−89.9% | Reduced |
| HighMark Wealth Management LLC | 23,375 | $3.52M | 2.23% | −243−1.0% | Reduced |
| Guggenheim Capital LLC | 23,339 | $3.51M | 0.02% | +9,092+63.8% | Added |
| Treasurer of the State of North Carolina | 22,439 | $3.38M | 0.02% | +460+2.1% | Added |
| Comerica Bank | 28,682 | $3.36M | 0.02% | +125+0.4% | Added |
| Voloridge Investment Management, LLC | 21,839 | $3.29M | 0.02% | +21,839 | New |
| Raymond James & Associates | 21,692 | $3.27M | 0.00% | +4,097+23.3% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 21,064 | $3.17M | 0.03% | +241+1.2% | Added |
| Oregon Public Employees Retirement Fund | 20,483 | $3.08M | 0.03% | −613−2.9% | Reduced |
| Beacon Investment Advisory Services, Inc. | 19,802 | $2.98M | 0.12% | +1,618+8.9% | Added |
| Twin Capital Management Inc | 19,695 | $2.96M | 0.30% | +5,650+40.2% | Added |
| Capital International Sarl | 19,215 | $2.89M | 0.14% | +15,664+441.1% | Added |
| Trexquant Investment LP | 19,048 | $2.87M | 0.18% | +14,908+360.1% | Added |
| D. E. Shaw & Co., Inc. | 18,922 | $2.85M | 0.00% | +4,657+32.6% | Added |
| EAM Global Investors LLC | 17,125 | $2.58M | 0.46% | +17,125 | New |
| Stanley-Laman Group, Ltd. | 17,024 | $2.56M | 0.30% | +17,024 | New |
| Schonfeld Strategic Advisors LLC | 16,995 | $2.56M | 0.02% | −11,375−40.1% | Reduced |
| Ameritas Investment Partners, Inc. | 16,987 | $2.56M | 0.09% | +291+1.7% | Added |
| Arizona State Retirement System | 16,964 | $2.55M | 0.02% | −98−0.6% | Reduced |
| Thrivent Financial for Lutherans | 16,752 | $2.52M | 0.00% | −2,535−13.1% | Reduced |
| Chartwell Investment Partners, LLC | 16,334 | $2.46M | 0.07% | −443−2.6% | Reduced |
| Louisiana State Employees Retirement System | 16,300 | $2.45M | 0.05% | +200+1.2% | Added |
| State of Michigan Retirement System | 16,100 | $2.42M | 0.01% | +300+1.9% | Added |
| Sectoral Asset Management Inc | 15,775 | $2.37M | 0.36% | +2,025+14.7% | Added |
| EAM Investors, LLC | 15,321 | $2.31M | 0.38% | −301−1.9% | Reduced |
| Polar Capital Holdings Plc | 15,173 | $2.28M | 0.01% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 14,980 | $2.25M | 0.00% | +2,080+16.1% | Added |
| Winton Group Ltd | 14,813 | $2.23M | 0.14% | −3,786−20.4% | Reduced |
| Prospera Financial Services Inc | 14,466 | $2.18M | 0.09% | +14,466 | New |
| Kensington Investment Counsel, LLC | 14,403 | $2.17M | 1.26% | +14,403 | New |
| Tributary Capital Management, LLC | 14,400 | $2.17M | 0.16% | −1,500−9.4% | Reduced |
| Cetera Advisor Networks LLC | 14,103 | $2.12M | 0.03% | −183−1.3% | Reduced |
| Metropolitan Life Insurance Co | 14,046 | $2.11M | 0.03% | −127−0.9% | Reduced |
| Cordatus Wealth Management LLC | 13,976 | $2.10M | 0.62% | +13,976 | New |
| Advisor Group Holdings, Inc. | 13,959 | $2.10M | 0.00% | +8,660+163.4% | Added |
| Illinois Municipal Retirement Fund | 13,807 | $2.08M | 0.06% | +2,956+27.2% | Added |
| Envestnet Asset Management Inc | 13,487 | $2.03M | 0.00% | +636+4.9% | Added |
| Bridge City Capital, LLC | 13,235 | $1.99M | 0.82% | −6,101−31.6% | Reduced |
| Xponance, Inc. | 13,170 | $1.98M | 0.03% | +400+3.1% | Added |
| Davy Global Fund Management Ltd | 13,090 | $1.97M | 0.30% | 00.0% | Unchanged |
| New Mexico Educational Retirement Board | 13,000 | $1.96M | 0.07% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 12,294 | $1.85M | 0.67% | +12,294 | New |
| M&G Investment Management Ltd | 12,155 | $1.83M | 0.01% | +12,155 | New |
| Strategic Wealth Partners, Ltd. | 12,182 | $1.83M | 0.35% | +394+3.3% | Added |
| Teacher Retirement System of Texas | 12,133 | $1.83M | 0.01% | +2,056+20.4% | Added |
| Handelsbanken Fonder AB | 11,000 | $1.66M | 0.01% | −100−0.9% | Reduced |
| Jane Street Group, LLC | 10,885 | $1.64M | 0.00% | +10,885 | New |
| Engineers Gate Manager LP | 10,790 | $1.62M | 0.07% | −1,926−15.1% | Reduced |
| ETF Managers Group, LLC | 10,654 | $1.62M | 0.03% | −763−6.7% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 10,532 | $1.58M | 0.03% | +120+1.2% | Added |
| 1492 Capital Management LLC | 10,493 | $1.58M | 0.78% | −50.0% | Reduced |
| Shelton Capital Management | 10,188 | $1.53M | 0.05% | +2,988+41.5% | Added |
| Commonwealth Equity Services, LLC | 9,924 | $1.49M | 0.00% | +137+1.4% | Added |
| US Bancorp | 9,716 | $1.46M | 0.00% | +477+5.2% | Added |
| Quantitative Investment Management, LLC | 9,548 | $1.44M | 0.20% | −10,057−51.3% | Reduced |
| Lattice Capital Management, LLC | 9,200 | $1.39M | 1.43% | +9,200 | New |