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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, Q2 2024

Institutional positions in Tandem Diabetes Care Inc as of Jun 30, 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
317
+29 vs. Q1 2024
Shares held
73.6M
−425.3K (−0.6%) vs. Q1 2024
Total value
$2.96B
+$343.5M (+13.1%) vs. Q1 2024
New holders
64
124 more added
Sold out
35
91 more reduced

3 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2024: 317 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 heldQ2 2024: $2.96B
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, Q2 2024

Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q1 2024.

Institutions holding TNDM in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Natixis Advisors, L.P.53,244$2.15M0.00%+3,034+6.0%Added
Cerity Partners LLC51,549$2.08M0.01%−5,843−10.2%Reduced
M&T Bank Corp50,977$2.05M0.01%−4,318−7.8%Reduced
Aquatic Capital Management LLC49,753$2.00M0.07%+49,753New
Oppenheimer Asset Management Inc.49,193$1.98M0.03%+8,813+21.8%Added
Mirae Asset Global ETFs Holdings Ltd.48,936$1.97M0.00%+48,936New
Verition Fund Management LLC48,442$1.95M0.02%+3,474+7.7%Added
Amundi48,369$1.93M0.00%−19,979−29.2%Reduced
Algert Global LLC45,263$1.82M0.06%+6,150+15.7%Added
Price T Rowe Associates Inc44,791$1.80M0.00%+6,059+15.6%Added
LPL Financial LLC43,960$1.77M0.00%+4,688+11.9%Added
Wells Fargo & Company43,376$1.75M0.00%−3,619−7.7%Reduced
Twinbeech Capital LP40,801$1.64M0.03%+40,801New
Pura Vida Investments, LLC40,500$1.63M1.97%−2,000−4.7%Reduced
Mirae Asset Global Investments Co., Ltd.39,366$1.59M0.01%−100,119−71.8%Reduced
Prelude Capital Management, LLC37,921$1.53M0.13%−38,109−50.1%Reduced
State of Alaska, Department of Revenue37,922$1.53M0.02%−1,803−4.5%Reduced
Corebridge Financial, Inc.37,559$1.51M0.01%+37,559New
Brinker Capital Investments, LLC37,376$1.51M0.02%−2,854−7.1%Reduced
Orion Portfolio Solutions, LLC37,376$1.51M0.02%−2,854−7.1%Reduced
Cinctive Capital Management LP37,105$1.49M0.08%+37,105New
US Bancorp36,920$1.49M0.00%+903+2.5%Added
SEI Investments Co36,150$1.46M0.00%+18,801+108.4%Added
Manufacturers Life Insurance Company, The35,980$1.45M0.00%+27,208+310.2%Added
State of New Jersey Common Pension Fund D35,939$1.45M0.01%+35,939New
Two Sigma Securities, LLC34,572$1.39M0.07%+34,572New
Susquehanna International Group, LLP33,974$1.37M0.00%−118,266−77.7%Reduced
Deutsche Bank AG33,649$1.36M0.00%+24,000+248.7%Added
Beacon Investment Advisory Services, Inc.33,580$1.35M0.06%−2,883−7.9%Reduced
State of Tennessee, Treasury Department32,709$1.32M0.00%+2,450+8.1%Added
Louisiana State Employees Retirement System32,500$1.31M0.03%+200+0.6%Added
Stifel Financial Corp31,912$1.29M0.00%+8,224+34.7%Added
JB Capital LLC31,470$1.27M0.08%+2,499+8.6%Added
Janney Montgomery Scott LLC31,038$1.25M0.00%−3,468−10.1%Reduced
Voya Investment Management LLC30,193$1.22M0.00%+11,112+58.2%Added
Cresset Asset Management, LLC29,883$1.20M0.01%+1,697+6.0%Added
Legato Capital Management LLC28,870$1.16M0.16%+10,845+60.2%Added
ClariVest Asset Management LLC28,149$1.13M0.12%+28,149New
Comerica Bank27,902$1.12M0.00%−3,140−10.1%Reduced
HighMark Wealth Management LLC27,170$1.09M0.66%00.0%Unchanged
Yousif Capital Management, LLC26,291$1.06M0.01%−3,384−11.4%Reduced
Ensign Peak Advisors, Inc25,532$1.03M0.00%00.0%Unchanged
Capula Management Ltd23,256$937.0K0.01%+23,256New
Maryland State Retirement & Pension System22,520$907.3K0.02%−5,932−20.8%Reduced
Bessemer Group Inc22,060$888.0K0.00%+1,760+8.7%Added
Quantinno Capital Management LP21,760$876.7K0.02%+9,845+82.6%Added
Teachers Retirement System of the State of Kentucky21,290$857.0K0.01%00.0%Unchanged
Bank of Montreal19,990$837.2K0.00%+11,045+123.5%Added
Boothbay Fund Management, LLC20,250$815.9K0.03%+12,700+168.2%Added
Amalgamated Bank19,749$796.0K0.01%−2,120−9.7%Reduced
Gsa Capital Partners LLP19,260$776.0K0.05%+10,867+129.5%Added
State Board of Administration of Florida Retirement System18,552$747.5K0.00%−49,627−72.8%Reduced
Arizona State Retirement System18,075$728.2K0.00%+154+0.9%Added
Handelsbanken Fonder AB17,600$709.0K0.00%+600+3.5%Added
Mariner, LLC16,970$683.8K0.00%+428+2.6%Added
Raymond James Financial Services Advisors, Inc.16,695$672.6K0.00%+681+4.3%Added
MetLife Investment Management16,336$658.2K0.00%+14,722+912.1%Added
Apollon Wealth Management, LLC15,849$638.6K0.02%00.0%Unchanged
Commerce Bank15,727$633.6K0.00%00.0%Unchanged
Oregon Public Employees Retirement Fund15,694$632.3K0.01%−1,758−10.1%Reduced
Pacific Capital Partners Ltd15,282$615.7K0.41%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)14,960$602.7K0.00%+592+4.1%Added
MN Wealth Advisors, LLC14,723$593.2K0.34%+440+3.1%Added
Diversified Trust Co14,635$589.6K0.02%+1,462+11.1%Added
Dynamic Technology Lab Private Ltd14,443$582.0K0.07%+5,850+68.1%Added
The PNC Financial Services Group, Inc.14,272$575.0K0.00%+8,639+153.4%Added
Susquehanna Portfolio Strategies, LLC14,142$569.8K0.02%−14,800−51.1%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys13,918$560.8K0.00%−164−1.2%Reduced
Franklin Resources Inc13,697$551.9K0.00%+3,204+30.5%Added
Hanseatic Management Services Inc13,231$533.1K0.80%+13,231New
Quantbot Technologies LP13,089$527.4K0.03%−6,958−34.7%Reduced
Cambridge Investment Research Advisors, Inc.12,988$523.0K0.00%−300−2.3%Reduced
Schonfeld Strategic Advisors LLC12,709$512.0K0.00%−53,971−80.9%Reduced
Axq Capital, LP12,372$498.5K0.12%+12,372New
Bridgewater Associates, LP12,336$497.0K0.00%−47,264−79.3%Reduced
Landscape Capital Management, L.L.C.12,241$493.2K0.04%+4,756+63.5%Added
Cetera Investment Advisers11,942$481.1K0.00%−2,415−16.8%Reduced
Creative Planning11,935$480.9K0.00%+3,461+40.8%Added
Davy Global Fund Management Ltd11,851$477.5K0.05%−4,700−28.4%Reduced
RiverPark Advisors, LLC11,130$448.4K0.37%+977+9.6%Added
Aviva PLC10,961$441.6K0.00%00.0%Unchanged
Guggenheim Capital LLC10,900$439.2K0.00%+1,576+16.9%Added
XTX Topco Ltd10,767$433.8K0.04%+3,072+39.9%Added
Atria Investments LLC10,676$430.1K0.01%+10,676New
Mutual of America Capital Management LLC10,617$427.8K0.00%−617−5.5%Reduced
Pictet & Cie (Europe) SA10,416$419.7K0.01%−5,498−34.5%Reduced
CI Private Wealth, LLC10,310$415.4K0.00%+40.0%Added
LMR Partners LLP10,081$406.2K0.01%−35,877−78.1%Reduced
Edgestream Partners, L.P.10,052$405.0K0.02%+10,052New
Ground Swell Capital, LLC9,698$390.7K0.38%+9,698New
GTS Securities LLC9,576$385.8K0.01%+9,576New
Keybank National Association9,432$380.0K0.00%−3,133−24.9%Reduced
Nomura Holdings Inc9,114$367.2K0.00%−44,495−83.0%Reduced
Jump Financial, LLC8,887$358.1K0.01%−71,180−88.9%Reduced
Advisors Asset Management, Inc.8,675$349.5K0.01%+8,675New
Balyasny Asset Management LLC8,629$347.7K0.00%−225,891−96.3%Reduced
Park Avenue Securities LLC8,579$346.0K0.00%−71−0.8%Reduced
Neuberger Berman Group LLC8,573$345.4K0.00%+216+2.6%Added
Captrust Financial Advisors8,523$343.4K0.00%+686+8.8%Added
Lawson Kroeker Investment Management Inc8,500$342.5K0.07%+8,500New