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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, Q3 2022

Institutional positions in Tandem Diabetes Care Inc as of Sep 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
299
−31 vs. Q2 2022
Shares held
62.7M
+1.30M (+2.1%) vs. Q2 2022
Total value
$3.00B
−$637.5M (−17.5%) vs. Q2 2022
New holders
39
104 more added
Sold out
70
120 more reduced

1 institution that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2022: 299 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 heldQ3 2022: $3.00B
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, Q3 2022

Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q2 2022.

Institutions holding TNDM in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
BNP Paribas Arbitrage, SA55,371$2.65M0.01%+43,330+359.9%Added
Wells Fargo & Company55,029$2.63M0.00%+1,174+2.2%Added
Brookfield Asset Management Inc.54,160$2.59M0.01%+54,160New
Manufacturers Life Insurance Company, The52,084$2.49M0.00%−1,498−2.8%Reduced
State of New Jersey Common Pension Fund D50,348$2.41M0.01%+13,369+36.2%Added
Amalgamated Bank48,525$2.32M0.02%+1,137+2.4%Added
Royal Bank of Canada46,901$2.25M0.00%+27,257+138.8%Added
Great West Life Assurance Co46,558$2.23M0.01%+7,311+18.6%Added
Texas Permanent School Fund46,191$2.21M0.04%−40−0.1%Reduced
Capital International Ltd45,088$2.16M0.15%+10,485+30.3%Added
Jane Street Group, LLC44,292$2.12M0.00%+7,811+21.4%Added
Formula Growth Ltd43,753$2.09M0.60%00.0%Unchanged
MetLife Investment Management43,709$2.09M0.02%−324−0.7%Reduced
Dimensional Fund Advisors LP42,871$2.05M0.00%−65,122−60.3%Reduced
Candriam Luxembourg S.C.A.42,575$2.04M0.01%−81,499−65.7%Reduced
LPL Financial LLC39,510$1.89M0.00%+5,383+15.8%Added
HSBC Holdings PLC38,944$1.86M0.00%−2,097−5.1%Reduced
Canada Pension Plan Investment Board36,000$1.72M0.00%+24,200+205.1%Added
Public Employees Retirement System of Ohio35,957$1.72M0.01%+874+2.5%Added
Chartwell Investment Partners, LLC35,424$1.70M0.07%+6,882+24.1%Added
Yousif Capital Management, LLC33,704$1.61M0.02%−2,999−8.2%Reduced
Comerica Bank28,928$1.59M0.01%−311−1.1%Reduced
DekaBank Deutsche Girozentrale32,000$1.58M0.00%+6,000+23.1%Added
Susquehanna Fundamental Investments, LLC32,935$1.58M0.03%+32,935New
Landscape Capital Management, L.L.C.32,850$1.57M0.21%−957−2.8%Reduced
Allianz Asset Management GmbH30,193$1.45M0.00%−45,970−60.4%Reduced
Envestnet Asset Management Inc29,002$1.39M0.00%+5,219+21.9%Added
Treasurer of the State of North Carolina27,343$1.31M0.01%+350+1.3%Added
Beacon Investment Advisory Services, Inc.26,909$1.29M0.07%+4,359+19.3%Added
UBS Oconnor LLC26,630$1.27M0.01%+5,100+23.7%Added
Capital International Sarl26,460$1.27M0.10%+7,420+39.0%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys25,462$1.22M0.01%+140+0.6%Added
Spouting Rock Asset Management, LLC23,615$1.13M0.87%−1,802−7.1%Reduced
Illinois Municipal Retirement Fund23,406$1.12M0.03%00.0%Unchanged
HighMark Wealth Management LLC23,375$1.12M0.95%00.0%Unchanged
Raymond James & Associates23,113$1.11M0.00%+4,935+27.1%Added
Weiss Multi-Strategy Advisers LLC22,766$1.09M0.03%+785+3.6%Added
D. E. Shaw & Co., Inc.22,403$1.07M0.00%−4,886−17.9%Reduced
Apollon Wealth Management, LLC20,774$994.0K0.08%+108+0.5%Added
Polar Capital Holdings Plc20,506$981.0K0.01%+1,833+9.8%Added
Baird Financial Group, Inc.20,331$973.0K0.00%−8,178−28.7%Reduced
Natixis19,365$968.0K0.00%−854−4.2%Reduced
PEAK6 Investments LLC19,772$946.0K0.04%+19,772New
Capital International Inc19,444$930.0K0.02%−3,854−16.5%Reduced
Man Group plc19,413$929.0K0.00%––
Raymond James Financial Services Advisors, Inc.19,173$917.0K0.00%−445−2.3%Reduced
Oregon Public Employees Retirement Fund18,665$893.0K0.01%+368+2.0%Added
Advisor Group Holdings, Inc.18,069$864.0K0.00%+1,791+11.0%Added
Davy Global Fund Management Ltd18,025$862.0K0.19%+1,980+12.3%Added
Bank of Montreal16,842$839.0K0.00%−6,226−27.0%Reduced
Citigroup Inc17,417$833.0K0.00%−16,296−48.3%Reduced
Arizona State Retirement System17,382$832.0K0.01%+73+0.4%Added
B. Metzler seel. Sohn & Co. AG17,383$832.0K0.02%+514+3.0%Added
Louisiana State Employees Retirement System17,100$818.0K0.02%+300+1.8%Added
Ameritas Investment Partners, Inc.16,714$799.0K0.04%−273−1.6%Reduced
Diversified Trust Co16,704$799.0K0.04%+2,979+21.7%Added
Ensign Peak Advisors, Inc16,670$798.0K0.00%00.0%Unchanged
State of Michigan Retirement System16,145$773.0K0.01%−100−0.6%Reduced
Mercer Global Advisors Inc16,015$766.0K0.00%−1,955−10.9%Reduced
Prelude Capital Management, LLC15,217$728.0K0.04%+6,081+66.6%Added
1492 Capital Management LLC14,993$717.0K0.52%−60−0.4%Reduced
Connor, Clark & Lunn Investment Management Ltd.14,724$705.0K0.00%+14,724New
Versor Investments LP14,602$699.0K0.04%−2,461−14.4%Reduced
PDT Partners, LLC13,760$658.0K0.10%+13,760New
Xponance, Inc.13,600$651.0K0.01%+54+0.4%Added
Bridge City Capital, LLC13,608$651.0K0.36%+460+3.5%Added
ExodusPoint Capital Management, LP13,409$642.0K0.01%−111,116−89.2%Reduced
US Bancorp13,344$637.0K0.00%+3,295+32.8%Added
Bank Julius Baer & Co. Ltd, Zurich13,089$626.0K0.00%−16,095−55.2%Reduced
Cetera Advisor Networks LLC12,806$613.0K0.01%−965−7.0%Reduced
Commonwealth Equity Services, LLC12,263$586.0K0.00%+1,117+10.0%Added
Ontario Teachers Pension Plan Board12,080$578.0K0.01%+192+1.6%Added
AtonRa Partners11,959$572.0K0.56%−2,299−16.1%Reduced
Point72 Hong Kong Ltd11,734$561.0K0.03%+5,265+81.4%Added
Chimera Capital Management LLC11,645$557.0K0.15%+11,645New
Vontobel Holding Ltd.11,287$540.0K0.01%+11,287New
Handelsbanken Fonder AB10,700$512.0K0.00%00.0%Unchanged
Janney Montgomery Scott LLC10,540$504.0K0.00%+3,748+55.2%Added
Virginia Retirement Systems Et Al10,200$488.1K0.01%+10,200New
Gsa Capital Partners LLP10,138$485.0K0.06%+4,877+92.7%Added
New Mexico Educational Retirement Board10,100$483.0K0.03%00.0%Unchanged
Tower Research Capital LLC (TRC)9,754$467.0K0.01%−906−8.5%Reduced
Teachers Retirement System of the State of Kentucky9,612$460.0K0.01%+9,612New
Engineers Gate Manager LP9,510$455.0K0.03%−103,949−91.6%Reduced
Centiva Capital, LP9,459$453.0K0.03%+9,459New
Northwestern Mutual Investment Management Company, LLC9,275$444.0K0.01%−1,431−13.4%Reduced
Lattice Capital Management, LLC9,200$440.0K0.70%00.0%Unchanged
Teacher Retirement System of Texas9,111$436.0K0.00%−1,099−10.8%Reduced
Gotham Asset Management, LLC8,997$431.0K0.01%−5,008−35.8%Reduced
State of Alaska, Department of Revenue8,910$426.0K0.01%−280−3.0%Reduced
Walleye Capital LLC8,829$422.0K0.01%−11,787−57.2%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)8,644$414.0K0.00%+944+12.3%Added
Dynamic Technology Lab Private Ltd8,520$408.0K0.04%−11,740−57.9%Reduced
Cresset Asset Management, LLC7,460$403.0K0.01%−40−0.5%Reduced
Wolverine Trading, LLC7,975$397.0K0.02%+4,497+129.3%Added
Public Employees Retirement Association of Colorado8,105$388.0K0.00%00.0%Unchanged
Guggenheim Capital LLC7,583$363.0K0.00%−2,513−24.9%Reduced
Jump Financial, LLC7,517$361.0K0.01%−48,983−86.7%Reduced
Tudor Investment Corp Et Al7,408$354.0K0.01%−13,761−65.0%Reduced
Pacer Advisors, Inc.7,266$348.0K0.00%+7,266New