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 |
|---|---|---|---|---|---|
| M&G Investment Management Ltd | 12,155 | $1.83M | 0.01% | +12,155 | New |
| Harbor Capital Advisors, Inc. | 12,294 | $1.85M | 0.67% | +12,294 | New |
| New Mexico Educational Retirement Board | 13,000 | $1.96M | 0.07% | 00.0% | Unchanged |
| Davy Global Fund Management Ltd | 13,090 | $1.97M | 0.30% | 00.0% | Unchanged |
| Xponance, Inc. | 13,170 | $1.98M | 0.03% | +400+3.1% | Added |
| Bridge City Capital, LLC | 13,235 | $1.99M | 0.82% | −6,101−31.6% | Reduced |
| Envestnet Asset Management Inc | 13,487 | $2.03M | 0.00% | +636+4.9% | Added |
| Illinois Municipal Retirement Fund | 13,807 | $2.08M | 0.06% | +2,956+27.2% | Added |
| Advisor Group Holdings, Inc. | 13,959 | $2.10M | 0.00% | +8,660+163.4% | Added |
| Cordatus Wealth Management LLC | 13,976 | $2.10M | 0.62% | +13,976 | New |
| Metropolitan Life Insurance Co | 14,046 | $2.11M | 0.03% | −127−0.9% | Reduced |
| Cetera Advisor Networks LLC | 14,103 | $2.12M | 0.03% | −183−1.3% | Reduced |
| Tributary Capital Management, LLC | 14,400 | $2.17M | 0.16% | −1,500−9.4% | Reduced |
| Kensington Investment Counsel, LLC | 14,403 | $2.17M | 1.26% | +14,403 | New |
| Prospera Financial Services Inc | 14,466 | $2.18M | 0.09% | +14,466 | New |
| Winton Group Ltd | 14,813 | $2.23M | 0.14% | −3,786−20.4% | Reduced |
| Ensign Peak Advisors, Inc | 14,980 | $2.25M | 0.00% | +2,080+16.1% | Added |
| Polar Capital Holdings Plc | 15,173 | $2.28M | 0.01% | 00.0% | Unchanged |
| EAM Investors, LLC | 15,321 | $2.31M | 0.38% | −301−1.9% | Reduced |
| Sectoral Asset Management Inc | 15,775 | $2.37M | 0.36% | +2,025+14.7% | Added |
| State of Michigan Retirement System | 16,100 | $2.42M | 0.01% | +300+1.9% | Added |
| Louisiana State Employees Retirement System | 16,300 | $2.45M | 0.05% | +200+1.2% | Added |
| Chartwell Investment Partners, LLC | 16,334 | $2.46M | 0.07% | −443−2.6% | Reduced |
| Thrivent Financial for Lutherans | 16,752 | $2.52M | 0.00% | −2,535−13.1% | Reduced |
| Arizona State Retirement System | 16,964 | $2.55M | 0.02% | −98−0.6% | Reduced |
| Ameritas Investment Partners, Inc. | 16,987 | $2.56M | 0.09% | +291+1.7% | Added |
| Schonfeld Strategic Advisors LLC | 16,995 | $2.56M | 0.02% | −11,375−40.1% | Reduced |
| Stanley-Laman Group, Ltd. | 17,024 | $2.56M | 0.30% | +17,024 | New |
| EAM Global Investors LLC | 17,125 | $2.58M | 0.46% | +17,125 | New |
| D. E. Shaw & Co., Inc. | 18,922 | $2.85M | 0.00% | +4,657+32.6% | Added |
| Trexquant Investment LP | 19,048 | $2.87M | 0.18% | +14,908+360.1% | Added |
| Capital International Sarl | 19,215 | $2.89M | 0.14% | +15,664+441.1% | Added |
| Twin Capital Management Inc | 19,695 | $2.96M | 0.30% | +5,650+40.2% | Added |
| Beacon Investment Advisory Services, Inc. | 19,802 | $2.98M | 0.12% | +1,618+8.9% | Added |
| Oregon Public Employees Retirement Fund | 20,483 | $3.08M | 0.03% | −613−2.9% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 21,064 | $3.17M | 0.03% | +241+1.2% | Added |
| Raymond James & Associates | 21,692 | $3.27M | 0.00% | +4,097+23.3% | Added |
| Voloridge Investment Management, LLC | 21,839 | $3.29M | 0.02% | +21,839 | New |
| Comerica Bank | 28,682 | $3.36M | 0.02% | +125+0.4% | Added |
| Treasurer of the State of North Carolina | 22,439 | $3.38M | 0.02% | +460+2.1% | Added |
| Guggenheim Capital LLC | 23,339 | $3.51M | 0.02% | +9,092+63.8% | Added |
| HighMark Wealth Management LLC | 23,375 | $3.52M | 2.23% | −243−1.0% | Reduced |
| Renaissance Technologies LLC | 24,227 | $3.65M | 0.00% | −215,319−89.9% | Reduced |
| Bank of Montreal | 23,828 | $3.65M | 0.00% | −98−0.4% | Reduced |
| Crown Advisors Management, Inc. | 25,000 | $3.76M | 2.42% | 00.0% | Unchanged |
| Spouting Rock Asset Management, LLC | 25,193 | $3.79M | 2.97% | −5,493−17.9% | Reduced |
| LPL Financial LLC | 25,234 | $3.80M | 0.00% | −3,730−12.9% | Reduced |
| SG Americas Securities, LLC | 25,544 | $3.85M | 0.03% | −4,092−13.8% | Reduced |
| Prudential Financial Inc | 28,495 | $4.19M | 0.01% | −867−3.0% | Reduced |
| PDT Partners, LLC | 28,220 | $4.25M | 0.32% | −22,783−44.7% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 29,000 | $4.37M | 0.01% | +28,291+3,990.3% | Added |
| Tudor Investment Corp Et Al | 29,551 | $4.45M | 0.09% | +29,551 | New |
| Raymond James Financial Services Advisors, Inc. | 30,692 | $4.62M | 0.01% | +8,224+36.6% | Added |
| MetLife Investment Management | 30,789 | $4.63M | 0.04% | +509+1.7% | Added |
| Kennedy Capital Management, Inc. | 31,004 | $4.67M | 0.10% | −1,075−3.4% | Reduced |
| Granite Point Capital Management, L.P. | 31,708 | $4.77M | 1.86% | +14,000+79.1% | Added |
| Great West Life Assurance Co | 32,080 | $4.83M | 0.01% | +2,475+8.4% | Added |
| Yousif Capital Management, LLC | 33,777 | $5.08M | 0.05% | +33,777 | New |
| Algert Global LLC | 34,319 | $5.17M | 0.65% | −2,099−5.8% | Reduced |
| Public Employees Retirement System of Ohio | 35,478 | $5.34M | 0.02% | −1,172−3.2% | Reduced |
| Candriam Luxembourg S.C.A. | 35,688 | $5.37M | 0.03% | +101+0.3% | Added |
| Royal Bank of Canada | 36,127 | $5.44M | 0.00% | +3,929+12.2% | Added |
| State of New Jersey Common Pension Fund D | 36,979 | $5.57M | 0.02% | −797−2.1% | Reduced |
| Stifel Financial Corp | 40,287 | $6.06M | 0.01% | +16,081+66.4% | Added |
| ExodusPoint Capital Management, LP | 40,308 | $6.07M | 0.07% | −2,650−6.2% | Reduced |
| Driehaus Capital Management LLC | 42,164 | $6.35M | 0.06% | +42,164 | New |
| First Republic Investment Management, Inc. | 43,019 | $6.47M | 0.01% | −2,289−5.1% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 44,158 | $6.65M | 0.04% | +39,758+903.6% | Added |
| Citigroup Inc | 44,490 | $6.70M | 0.01% | −9,907−18.2% | Reduced |
| Texas Permanent School Fund | 45,807 | $6.89M | 0.08% | −818−1.8% | Reduced |
| Penserra Capital Management LLC | 46,731 | $7.03M | 0.15% | +46,731 | New |
| Susquehanna International Group, LLP | 46,781 | $7.04M | 0.01% | +28,134+150.9% | Added |
| Amalgamated Bank | 47,007 | $7.08M | 0.05% | +2,437+5.5% | Added |
| Capital International Inc | 47,861 | $7.20M | 0.07% | +3,293+7.4% | Added |
| Capital International Ltd | 49,298 | $7.42M | 0.38% | +12,969+35.7% | Added |
| State of Tennessee, Treasury Department | 50,000 | $7.53M | 0.03% | +20,000+66.7% | Added |
| Capital Fund Management S.A. | 50,662 | $7.63M | 0.20% | +35,568+235.6% | Added |
| Formula Growth Ltd | 52,429 | $7.89M | 1.40% | −3,556−6.4% | Reduced |
| New York State Teachers Retirement System | 53,271 | $8.02M | 0.02% | +49,684+1,385.1% | Added |
| Mirabella Financial Services LLP | 54,110 | $8.14M | 0.83% | +25,249+87.5% | Added |
| Susquehanna Fundamental Investments, LLC | 57,306 | $8.63M | 0.23% | +3,225+6.0% | Added |
| Schroder Investment Management Group | 60,253 | $9.07M | 0.01% | +3,346+5.9% | Added |
| Assenagon Asset Management S.A. | 60,776 | $9.15M | 0.03% | +16,140+36.2% | Added |
| State of Wisconsin Investment Board | 64,238 | $9.67M | 0.02% | −97−0.2% | Reduced |
| Frontier Capital Management Co LLC | 66,788 | $10.1M | 0.08% | −938−1.4% | Reduced |
| Next Century Growth Investors LLC | 67,572 | $10.2M | 0.92% | −3,255−4.6% | Reduced |
| Cinctive Capital Management LP | 67,741 | $10.2M | 0.48% | +36,968+120.1% | Added |
| Bridgewater Associates, LP | 69,860 | $10.5M | 0.06% | +12,252+21.3% | Added |
| BNP Paribas Arbitrage, SA | 70,326 | $10.6M | 0.03% | +63,873+989.8% | Added |
| Manufacturers Life Insurance Company, The | 71,710 | $10.8M | 0.01% | −819−1.1% | Reduced |
| Castleark Management LLC | 73,800 | $11.1M | 0.41% | +42,810+138.1% | Added |
| State Board of Administration of Florida Retirement System | 74,141 | $11.2M | 0.02% | −54−0.1% | Reduced |
| Lisanti Capital Growth, LLC | 75,500 | $11.4M | 1.64% | +22,600+42.7% | Added |
| British Columbia Investment Management Corp | 76,800 | $11.6M | 0.06% | −23,200−23.2% | Reduced |
| Mutual of America Capital Management LLC | 77,016 | $11.6M | 0.12% | +1,085+1.4% | Added |
| Marshall Wace, LLP | 80,376 | $12.1M | 0.02% | +64,572+408.6% | Added |
| Cubist Systematic Strategies, LLC | 80,523 | $12.1M | 0.12% | −119−0.1% | Reduced |
| Retirement Systems of Alabama | 83,195 | $12.5M | 0.04% | +1,586+1.9% | Added |
| Essex Investment Management Co LLC | 86,697 | $13.1M | 1.49% | +12,109+16.2% | Added |
| California State Teachers Retirement System | 87,279 | $13.1M | 0.02% | −17,253−16.5% | Reduced |