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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 2022

Institutional positions in Tandem Diabetes Care Inc as of Jun 30, 2022. 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
331
−41 vs. Q1 2022
Shares held
61.4M
+2.07M (+3.5%) vs. Q1 2022
Total value
$3.64B
−$3.26B (−47.2%) vs. Q1 2022
New holders
37
150 more added
Sold out
78
110 more reduced

7 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2022: 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 2022: 331 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 2022: $3.64B
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 2022

Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q1 2022.

Institutions holding TNDM in Q2 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Credit Suisse AG65,367$3.87M0.00%−99,095−60.3%Reduced
Frontier Capital Management Co LLC64,689$3.83M0.04%−1,857−2.8%Reduced
KBC Group NV61,500$3.64M0.02%−12,647−17.1%Reduced
Voloridge Investment Management, LLC61,253$3.63M0.02%+61,253New
New York State Teachers Retirement System59,320$3.51M0.01%+3,735+6.7%Added
Algert Global LLC58,992$3.49M0.26%+11,261+23.6%Added
Jump Financial, LLC56,500$3.34M0.14%+48,831+636.7%Added
Wells Fargo & Company53,855$3.19M0.00%−17,998−25.0%Reduced
Manufacturers Life Insurance Company, The53,582$3.17M0.00%+30.0%Added
Duality Advisers, LP48,461$2.87M0.28%+44,694+1,186.5%Added
Amalgamated Bank47,388$2.81M0.03%+523+1.1%Added
Nicholas Company, Inc.47,380$2.80M0.06%−109,493−69.8%Reduced
Thrivent Financial for Lutherans47,166$2.79M0.01%+6,475+15.9%Added
Schonfeld Strategic Advisors LLC46,272$2.74M0.03%+35,298+321.7%Added
Texas Permanent School Fund46,231$2.74M0.04%+1,189+2.6%Added
Citadel Advisors LLC45,300$2.68M0.00%−468,688−91.2%Reduced
MetLife Investment Management44,033$2.61M0.02%+375+0.9%Added
Formula Growth Ltd43,753$2.59M0.72%−5,000−10.3%Reduced
Lisanti Capital Growth, LLC43,572$2.58M0.35%−81,082−65.0%Reduced
Quantbot Technologies LP41,197$2.44M0.22%+35,633+640.4%Added
HSBC Holdings PLC41,041$2.43M0.00%+16,140+64.8%Added
Great West Life Assurance Co39,247$2.32M0.01%+4,765+13.8%Added
Schroder Investment Management Group37,242$2.24M0.00%−64,026−63.2%Reduced
State of New Jersey Common Pension Fund D36,979$2.19M0.01%00.0%Unchanged
Yousif Capital Management, LLC36,703$2.17M0.03%+2,490+7.3%Added
Jane Street Group, LLC36,481$2.16M0.00%+18,870+107.1%Added
Healthcare of Ontario Pension Plan Trust Fund36,212$2.14M0.01%−24,805−40.7%Reduced
Public Employees Retirement System of Ohio35,083$2.08M0.01%+748+2.2%Added
Capital International Ltd34,603$2.05M0.15%−15,066−30.3%Reduced
LPL Financial LLC34,127$2.05M0.00%−7,044−17.1%Reduced
Next Century Growth Investors LLC34,352$2.03M0.27%−91−0.3%Reduced
Landscape Capital Management, L.L.C.33,807$2.00M0.27%+33,807New
Citigroup Inc33,713$2.00M0.00%−1,779−5.0%Reduced
Kennedy Capital Management, Inc.32,943$1.95M0.05%+1,565+5.0%Added
Bank Julius Baer & Co. Ltd, Zurich29,184$1.73M0.01%−9,224−24.0%Reduced
Comerica Bank29,239$1.70M0.01%+217+0.7%Added
Chartwell Investment Partners, LLC28,542$1.69M0.07%+11,495+67.4%Added
Baird Financial Group, Inc.28,509$1.69M0.00%+3,119+12.3%Added
D. E. Shaw & Co., Inc.27,289$1.61M0.00%+19,845+266.6%Added
AQR Capital Management LLC27,441$1.60M0.00%+4,171+17.9%Added
Treasurer of the State of North Carolina26,993$1.60M0.01%+4,191+18.4%Added
DekaBank Deutsche Girozentrale26,000$1.56M0.00%+26,000New
Spouting Rock Asset Management, LLC25,417$1.50M0.98%+1,760+7.4%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys25,322$1.50M0.02%+2,038+8.8%Added
Bank of Montreal23,068$1.46M0.00%−79,361−77.5%Reduced
Envestnet Asset Management Inc23,783$1.41M0.00%+6,722+39.4%Added
Illinois Municipal Retirement Fund23,406$1.39M0.03%+9,599+69.5%Added
HighMark Wealth Management LLC23,375$1.38M1.11%00.0%Unchanged
Capital International Inc23,298$1.38M0.02%−290−1.2%Reduced
Beacon Investment Advisory Services, Inc.22,550$1.33M0.07%+1,126+5.3%Added
Weiss Multi-Strategy Advisers LLC21,981$1.30M0.04%+11,981+119.8%Added
UBS Oconnor LLC21,530$1.27M0.01%+21,530New
Tudor Investment Corp Et Al21,169$1.25M0.04%+21,169New
Apollon Wealth Management, LLC20,666$1.22M0.10%−605−2.8%Reduced
Walleye Capital LLC20,616$1.22M0.03%+8,071+64.3%Added
Dynamic Technology Lab Private Ltd20,260$1.20M0.14%+13,680+207.9%Added
Natixis20,219$1.20M0.00%+20,219New
Royal Bank of Canada19,644$1.16M0.00%−20,758−51.4%Reduced
Raymond James Financial Services Advisors, Inc.19,618$1.16M0.00%−594−2.9%Reduced
Stanley-Laman Group, Ltd.19,191$1.14M0.20%−266−1.4%Reduced
Capital International Sarl19,040$1.13M0.09%+2,667+16.3%Added
Polar Capital Holdings Plc18,673$1.10M0.01%+3,500+23.1%Added
First Republic Investment Management, Inc.18,545$1.10M0.00%−25,001−57.4%Reduced
Oregon Public Employees Retirement Fund18,297$1.08M0.02%−2,000−9.9%Reduced
Raymond James & Associates18,178$1.08M0.00%+1,879+11.5%Added
Mercer Global Advisors Inc17,970$1.06M0.01%+10,062+127.2%Added
Campbell & CO Investment Adviser LLC17,638$1.04M0.28%+14,027+388.5%Added
Arizona State Retirement System17,309$1.02M0.01%+135+0.8%Added
Versor Investments LP17,063$1.01M0.04%+13,363+361.2%Added
Ameritas Investment Partners, Inc.16,987$1.00M0.04%00.0%Unchanged
B. Metzler seel. Sohn & Co. AG16,869$998.0K0.02%+5,703+51.1%Added
Ensign Peak Advisors, Inc16,670$987.0K0.00%+1,690+11.3%Added
Louisiana State Employees Retirement System16,800$976.0K0.03%+200+1.2%Added
Advisor Group Holdings, Inc.16,278$970.0K0.00%+2,334+16.7%Added
State of Michigan Retirement System16,245$962.0K0.01%+100+0.6%Added
Davy Global Fund Management Ltd16,045$950.0K0.19%00.0%Unchanged
1492 Capital Management LLC15,053$891.0K0.59%+4,681+45.1%Added
AtonRa Partners14,258$844.0K0.78%+14,258New
Alpha Paradigm Partners, LLC14,157$838.0K0.35%+13,991+8,428.3%Added
Gotham Asset Management, LLC14,005$829.0K0.03%+588+4.4%Added
Cetera Advisor Networks LLC13,771$815.0K0.01%+353+2.6%Added
Diversified Trust Co13,725$812.0K0.03%+6,673+94.6%Added
Xponance, Inc.13,546$802.0K0.02%+616+4.8%Added
Bridge City Capital, LLC13,148$778.0K0.41%−23−0.2%Reduced
M&G Investment Management Ltd12,822$756.0K0.01%+667+5.5%Added
AlphaCrest Capital Management LLC12,340$730.0K0.04%−1,811−12.8%Reduced
BNP Paribas Arbitrage, SA12,041$712.7K0.00%−36,450−75.2%Reduced
Ontario Teachers Pension Plan Board11,888$704.0K0.01%+3,098+35.2%Added
Canada Pension Plan Investment Board11,800$698.0K0.00%+6,184+110.1%Added
Ergoteles LLC11,555$684.0K0.02%+11,555New
Cna Financial Corp11,530$682.0K0.24%+11,530New
Commonwealth Equity Services, LLC11,146$659.0K0.00%+1,312+13.3%Added
Group One Trading, L.P.11,106$657.0K0.02%−339−3.0%Reduced
Northwestern Mutual Investment Management Company, LLC10,706$634.0K0.01%+154+1.5%Added
Handelsbanken Fonder AB10,700$633.0K0.00%−300−2.7%Reduced
Tower Research Capital LLC (TRC)10,660$631.0K0.01%+453+4.4%Added
Aigen Investment Management, LP10,608$628.0K0.11%+10,608New
Winton Group Ltd10,521$623.0K0.03%−2,756−20.8%Reduced
Teacher Retirement System of Texas10,210$604.0K0.00%−2,931−22.3%Reduced
Guggenheim Capital LLC10,096$598.0K0.00%−3,893−27.8%Reduced