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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 2024

Institutional positions in Tandem Diabetes Care Inc as of Dec 31, 2024. 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
316
−10 vs. Q3 2024
Shares held
72.1M
−803.0K (−1.1%) vs. Q3 2024
Total value
$2.60B
−$494.1M (−16.0%) vs. Q3 2024
New holders
42
138 more added
Sold out
52
90 more reduced

6 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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.

Institutional holdersQ4 2024: 316 institutions
Q1 2021: 290 institutionsQ2 2021: 303 institutionsQ3 2021: 338 institutionsQ4 2021: 388 institutionsQ1 2022: 379 institutionsQ2 2022: 331 institutionsQ3 2022: 299 institutionsQ4 2022: 295 institutionsQ1 2023: 274 institutionsQ2 2023: 247 institutionsQ3 2023: 226 institutionsQ4 2023: 268 institutionsQ1 2024: 291 institutionsQ2 2024: 317 institutionsQ3 2024: 332 institutionsQ4 2024: 316 institutionsQ1 2025: 275 institutionsQ2 2025: 271 institutionsQ3 2025: 255 institutionsQ4 2025: 269 institutionsQ1 2026: 274 institutionsQ2 2026: 274 institutions
Value heldQ4 2024: $2.60B
Q1 2021: $5.08BQ2 2021: $5.75BQ3 2021: $7.32BQ4 2021: $9.09BQ1 2022: $6.92BQ2 2022: $3.64BQ3 2022: $3.00BQ4 2022: $2.89BQ1 2023: $2.77BQ2 2023: $1.65BQ3 2023: $1.45BQ4 2023: $2.10BQ1 2024: $2.63BQ2 2024: $2.96BQ3 2024: $3.10BQ4 2024: $2.60BQ1 2025: $1.40BQ2 2025: $1.51BQ3 2025: $911.3MQ4 2025: $1.65BQ1 2026: $1.51BQ2 2026: $1.19B
Institutions holding TNDM and their total value by quarter
QuarterHoldersValue
Q2 2026274$1.19B
Q1 2026274$1.51B
Q4 2025269$1.65B
Q3 2025255$911.3M
Q2 2025271$1.51B
Q1 2025275$1.40B
Q4 2024316$2.60B
Q3 2024332$3.10B
Q2 2024317$2.96B
Q1 2024291$2.63B
Q4 2023268$2.10B
Q3 2023226$1.45B
Q2 2023247$1.65B
Q1 2023274$2.77B
Q4 2022295$2.89B
Q3 2022299$3.00B
Q2 2022331$3.64B
Q1 2022379$6.92B
Q4 2021388$9.09B
Q3 2021338$7.32B
Q2 2021303$5.75B
Q1 2021290$5.08B

Institutions, Q4 2024

Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q3 2024.

Institutions holding TNDM in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Squarepoint Ops LLC63,319$2.28M0.01%+27,389+76.2%Added
Great West Life Assurance Co62,173$2.24M0.00%00.0%Unchanged
Deutsche Bank AG61,771$2.22M0.00%+19,308+45.5%Added
Oppenheimer Asset Management Inc.61,704$2.22M0.03%+2,612+4.4%Added
Wells Fargo & Company61,255$2.21M0.00%+16,163+35.8%Added
California State Teachers Retirement System61,237$2.21M0.00%+127+0.2%Added
M&T Bank Corp58,170$2.10M0.01%+6,335+12.2%Added
Brevan Howard Capital Management LP52,841$1.90M0.05%+30,909+140.9%Added
Susquehanna Fundamental Investments, LLC51,703$1.86M0.03%+51,703New
Quantinno Capital Management LP51,612$1.86M0.02%+20,467+65.7%Added
Thrivent Financial for Lutherans50,765$1.83M0.00%−644−1.3%Reduced
Price T Rowe Associates Inc50,740$1.83M0.00%+5,540+12.3%Added
Mangrove Partners48,741$1.76M0.21%+28,042+135.5%Added
LPL Financial LLC48,036$1.73M0.00%+12,099+33.7%Added
MetLife Investment Management39,688$1.43M0.01%+2,266+6.1%Added
JB Capital LLC39,213$1.41M0.08%+5,484+16.3%Added
US Bancorp38,708$1.39M0.00%+5,108+15.2%Added
Jump Financial, LLC37,710$1.36M0.03%+37,710New
State of Alaska, Department of Revenue37,326$1.34M0.02%−32−0.1%Reduced
Manufacturers Life Insurance Company, The35,031$1.26M0.00%−318−0.9%Reduced
Corebridge Financial, Inc.34,962$1.26M0.01%−2,238−6.0%Reduced
Stifel Financial Corp34,773$1.25M0.00%+701+2.1%Added
Integrated Quantitative Investments LLC31,900$1.15M0.57%+31,900New
Louisiana State Employees Retirement System31,800$1.15M0.02%+200+0.6%Added
Jane Street Group, LLC31,251$1.13M0.00%−84,136−72.9%Reduced
Janney Montgomery Scott LLC30,240$1.09M0.00%+4,412+17.1%Added
Brinker Capital Investments, LLC30,074$1.08M0.01%−3,589−10.7%Reduced
Orion Portfolio Solutions, LLC30,074$1.08M0.01%−3,589−10.7%Reduced
Susquehanna International Group, LLP30,070$1.08M0.00%−9,437−23.9%Reduced
State of Tennessee, Treasury Department29,836$1.07M0.00%+1,270+4.4%Added
Janus Henderson Group PLC29,811$1.07M0.00%−883,730−96.7%Reduced
Intech Investment Management LLC28,658$1.03M0.01%+10,322+56.3%Added
HSBC Holdings PLC27,779$1.02M0.00%+14,501+109.2%Added
Comerica Bank27,953$1.01M0.00%+167+0.6%Added
Teacher Retirement System of Texas27,570$993.0K0.00%+27,570New
Commerce Bank26,889$968.5K0.01%+4,725+21.3%Added
Franklin Resources Inc26,814$965.8K0.00%+29+0.1%Added
Shell Asset Management Co26,281$947.0K0.04%+3,803+16.9%Added
Ensign Peak Advisors, Inc25,532$919.7K0.00%00.0%Unchanged
Yousif Capital Management, LLC25,398$914.8K0.01%−387−1.5%Reduced
HighMark Wealth Management LLC25,170$906.6K0.52%−2,000−7.4%Reduced
BNP Paribas Arbitrage, SA24,819$894.0K0.00%−268,768−91.5%Reduced
Cambridge Investment Research Advisors, Inc.23,953$863.0K0.00%+10,286+75.3%Added
Bessemer Group Inc22,524$811.0K0.00%+297+1.3%Added
The PNC Financial Services Group, Inc.22,239$801.0K0.00%+2,720+13.9%Added
Maryland State Retirement & Pension System22,107$796.3K0.02%00.0%Unchanged
Handelsbanken Fonder AB22,000$792.0K0.00%00.0%Unchanged
B. Metzler seel. Sohn & Co. AG21,870$787.8K0.01%+21,870New
Teachers Retirement System of the State of Kentucky21,290$767.0K0.01%00.0%Unchanged
Aquatic Capital Management LLC21,246$765.3K0.02%−46,254−68.5%Reduced
Moore Capital Management, LP20,998$756.3K0.01%+20,998New
Advisors Asset Management, Inc.20,796$749.1K0.01%+10,596+103.9%Added
Legato Capital Management LLC20,335$732.5K0.10%+6,530+47.3%Added
ProShare Advisors LLC19,789$712.8K0.00%+5,903+42.5%Added
Landscape Capital Management, L.L.C.19,635$707.3K0.08%+6,081+44.9%Added
Amalgamated Bank19,224$692.0K0.01%−68−0.4%Reduced
Arizona State Retirement System18,961$683.0K0.00%+362+1.9%Added
Beacon Investment Advisory Services, Inc.18,905$681.0K0.03%−13,705−42.0%Reduced
State Board of Administration of Florida Retirement System18,552$668.2K0.00%00.0%Unchanged
Captrust Financial Advisors18,513$666.8K0.00%+8,343+82.0%Added
MN Wealth Advisors, LLC17,954$646.7K0.36%+1,106+6.6%Added
Zurcher Kantonalbank (Zurich Cantonalbank)17,946$646.4K0.00%+2,282+14.6%Added
Connective Capital Management, LLC16,960$610.9K0.71%+16,960New
Canada Pension Plan Investment Board16,900$608.7K0.00%+15,100+838.9%Added
Mariner, LLC16,881$608.1K0.00%−324−1.9%Reduced
Guggenheim Capital LLC16,107$580.2K0.00%+4,608+40.1%Added
Oregon Public Employees Retirement Fund15,471$557.3K0.01%+61+0.4%Added
Apollon Wealth Management, LLC14,812$533.5K0.01%−719−4.6%Reduced
Diversified Trust Co14,623$526.7K0.01%−12−0.1%Reduced
Cetera Investment Advisers14,185$510.9K0.00%+981+7.4%Added
Y-Intercept (Hong Kong) Ltd14,147$509.6K0.03%+14,147New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys14,021$505.0K0.00%+28+0.2%Added
AQR Capital Management LLC13,905$500.9K0.00%+5,416+63.8%Added
Police & Firemen's Retirement System of New Jersey13,900$500.7K0.00%+13,900New
KLP Kapitalforvaltning AS13,500$486.3K0.00%+13,500New
Edgestream Partners, L.P.12,796$460.9K0.02%+7,791+155.7%Added
Davy Global Fund Management Ltd11,851$426.9K0.05%00.0%Unchanged
Neuberger Berman Group LLC10,375$373.7K0.00%−18−0.2%Reduced
Atria Investments LLC10,101$363.8K0.00%−855−7.8%Reduced
Bank of Montreal10,004$360.3K0.00%+409+4.3%Added
Mutual of America Capital Management LLC9,949$358.4K0.00%+102+1.0%Added
HighTower Advisors, LLC9,533$343.4K0.00%+9,533New
Sherbrooke Park Advisers LLC9,225$332.3K0.11%+9,225New
Jefferies Financial Group Inc.9,158$329.9K0.00%−369,178−97.6%Reduced
Park Avenue Securities LLC8,914$321.0K0.00%+2,286+34.5%Added
Bayforest Capital Ltd8,852$318.8K0.40%+8,852New
Lawson Kroeker Investment Management Inc8,500$306.2K0.06%00.0%Unchanged
Aviva PLC8,361$301.2K0.00%00.0%Unchanged
MML Investors Services, LLC8,276$298.0K0.00%+1,077+15.0%Added
Inceptionr LLC8,273$298.0K0.07%+1,478+21.8%Added
EntryPoint Capital, LLC8,167$294.2K0.12%+8,167New
AlphaCentric Advisors LLC8,105$291.9K0.29%+8,105New
Stephens Inc7,890$284.2K0.00%+238+3.1%Added
CI Private Wealth, LLC7,844$282.5K0.00%+962+14.0%Added
LVW Advisors, LLC7,798$280.9K0.03%+944+13.8%Added
Public Employees Retirement Association of Colorado7,650$276.0K0.00%00.0%Unchanged
Cresset Asset Management, LLC7,644$275.3K0.00%−23,808−75.7%Reduced
Creative Planning7,582$273.1K0.00%−2,958−28.1%Reduced
XTX Topco Ltd7,490$269.8K0.02%+2,273+43.6%Added
Pictet Asset Management Holding SA7,465$268.9K0.00%00.0%Unchanged