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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
Glassman Wealth Services2$00.00%−187−98.9%Reduced
Ci Investments Inc.4$00.00%−94−95.9%Reduced
Parkside Financial Bank & Trust9$00.00%−38−80.9%Reduced
Money Concepts Capital Corp10$00.00%00.0%Unchanged
Huntington National Bank16$00.00%+5+45.5%Added
USA Financial Portformulas Corp2$00.00%00.0%Unchanged
Cullen/Frost Bankers, Inc.5$00.00%+5New
Sutton Wealth Advisors Inc.3$1440.00%+3New
First Horizon Advisors, Inc.49$1.00K0.00%−39−44.3%Reduced
Loomis Sayles & Co L P18$1.00K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC20$1.00K0.00%00.0%Unchanged
Crewe Advisors LLC18$1.00K0.00%00.0%Unchanged
Prestige Wealth Management Group LLC11$1.00K0.00%−12−52.2%Reduced
Capital Advisors, Ltd. LLC13$1.00K0.00%+10+333.3%Added
Farmers & Merchants Investments Inc25$1.00K0.00%+25New
AlphaMark Advisors, LLC30$1.00K0.00%+30New
Bogart Wealth, LLC25$1.00K0.00%+25New
Heritage Wealth Management, LLC13$1.00K0.00%+13New
Ronald Blue Trust, Inc.11$1.00K0.00%+11New
Spire Wealth Management13$1.00K0.00%+13New
Meeder Asset Management Inc32$2.00K0.00%−51−61.4%Reduced
Cambridge Trust Co32$2.00K0.00%00.0%Unchanged
Focused Wealth Management, Inc40$2.00K0.00%00.0%Unchanged
Wagner Wealth Management, LLC35$2.00K0.00%00.0%Unchanged
Quent Capital, LLC34$2.00K0.00%00.0%Unchanged
Sandy Spring Bank40$2.00K0.00%+25+166.7%Added
Bell Investment Advisors, Inc34$2.00K0.00%+13+61.9%Added
Coastal Capital Group, Inc.43$2.00K0.00%+43New
Byrne Asset Management LLC60$3.00K0.00%−65−52.0%Reduced
Lindbrook Capital, LLC56$3.00K0.00%+7+14.3%Added
Bessemer Group Inc53$3.00K0.00%+18+51.4%Added
Allworth Financial LP57$3.00K0.00%+45+375.0%Added
Umb Bank N A84$4.00K0.00%−31−27.0%Reduced
Ancora Advisors, LLC94$4.00K0.00%00.0%Unchanged
Ellevest, Inc.84$4.00K0.00%−5−5.6%Reduced
Covestor Ltd105$5.00K0.00%−848−89.0%Reduced
Steward Partners Investment Advisory, LLC99$5.00K0.00%−220−69.0%Reduced
FourThought Financial, LLC104$5.00K0.00%−100−49.0%Reduced
Nisa Investment Advisors, LLC98$5.00K0.00%−52−34.7%Reduced
Stonebridge Capital Advisors LLC100$5.00K0.00%00.0%Unchanged
Front Row Advisors LLC100$5.00K0.00%00.0%Unchanged
Massmutual Trust Co FSB113$5.00K0.00%+55+94.8%Added
American Portfolios Advisors118$5.65K0.00%−109−48.0%Reduced
Ellis Investment Partners, LLC130$6.00K0.00%00.0%Unchanged
FinTrust Capital Advisors, LLC130$7.00K0.00%00.0%Unchanged
Toth Financial Advisory Corp225$11.0K0.00%00.0%Unchanged
IFP Advisors, Inc373$11.0K0.00%−25−6.3%Reduced
GHP Investment Advisors, Inc.224$11.0K0.00%+224New
Kistler-Tiffany Companies, LLC245$12.0K0.00%00.0%Unchanged
Proequities, Inc.299$14.0K0.00%+35+13.3%Added
Parallel Advisors, LLC327$16.0K0.00%+99+43.4%Added
Fifth Third Bancorp392$19.0K0.00%−48−10.9%Reduced
Harbour Investments, Inc.316$19.0K0.00%00.0%Unchanged
CWM, LLC530$25.0K0.00%−511−49.1%Reduced
Quadrant Capital Group LLC548$26.0K0.00%+31+6.0%Added
State of Wyoming563$27.0K0.01%+147+35.3%Added
Edmond de Rothschild Holding S.A.578$28.0K0.00%00.0%Unchanged
Signaturefd, LLC620$30.0K0.00%+319+106.0%Added
Banque Cantonale Vaudoise642$31.0K0.00%−221−25.6%Reduced
Russell Investments Group, Ltd.706$32.0K0.00%−7,151−91.0%Reduced
Newbridge Financial Services Group, Inc.710$34.0K0.02%−41−5.5%Reduced
National Bank of Canada760$36.0K0.00%−145−16.0%Reduced
Van Eck Associates Corp831$40.0K0.00%+831New
GPS Wealth Strategies Group, LLC855$41.0K0.01%−190−18.2%Reduced
Advent Capital Management990$47.0K0.00%+990New
Salem Investment Counselors Inc1,000$48.0K0.00%00.0%Unchanged
Exchange Traded Concepts, LLC1,042$50.0K0.00%−4,096−79.7%Reduced
Global Retirement Partners, LLC1,070$60.0K0.00%+171+19.0%Added
Rockefeller Capital Management L.P.1,273$60.0K0.00%+1,142+871.8%Added
Lazard Asset Management LLC1,310$62.0K0.00%−1,083−45.3%Reduced
Wipfli Financial Advisors LLC,1,291$62.0K0.00%+1,291New
Northwestern Mutual Wealth Management Co1,788$86.0K0.00%−21−1.2%Reduced
Leonteq Securities AG2,028$97.0K0.01%−441−17.9%Reduced
Stephens Inc2,053$98.0K0.00%+772+60.3%Added
Shell Asset Management Co2,479$119.0K0.00%−327−11.7%Reduced
Allspring Global Investments Holdings, LLC2,583$123.0K0.00%−114,125−97.8%Reduced
HighTower Advisors, LLC4,209$202.0K0.00%−99−2.3%Reduced
Prudential Financial Inc4,229$211.0K0.00%−194−4.4%Reduced
Tocqueville Asset Management L.P.4,500$215.0K0.00%00.0%Unchanged
SG Americas Securities, LLC4,505$216.0K0.00%+1,882+71.7%Added
Oppenheimer & Co Inc4,536$217.0K0.01%−5,552−55.0%Reduced
ProShare Advisors LLC4,532$217.0K0.00%−28−0.6%Reduced
Truist Financial Corp4,625$221.0K0.00%+4,625New
Partners Group Holding AG4,647$222.0K0.02%00.0%Unchanged
MML Investors Services, LLC4,831$231.0K0.00%+887+22.5%Added
Two Sigma Securities, LLC5,168$247.0K0.04%+5,168New
Schonfeld Strategic Advisors LLC5,309$254.0K0.00%−40,963−88.5%Reduced
Creative Planning5,482$262.0K0.00%+1,297+31.0%Added
Jupiter Asset Management Ltd5,564$266.0K0.00%+5,564New
JB Capital LLC5,754$275.0K0.03%+129+2.3%Added
Crossmark Global Holdings, Inc.5,833$279.0K0.01%−67−1.1%Reduced
Securian Asset Management, Inc5,831$279.0K0.01%00.0%Unchanged
Silvant Capital Management LLC6,011$288.0K0.02%00.0%Unchanged
Cambridge Investment Research Advisors, Inc.6,179$296.0K0.00%+300+5.1%Added
Ausdal Financial Partners, Inc.6,619$317.0K0.05%00.0%Unchanged
Jefferies Group LLC6,630$317.2K0.01%+6,630New
Zions Bancorporation, N.A.6,754$323.0K0.03%+12+0.2%Added
The PNC Financial Services Group, Inc.6,828$327.0K0.00%−314−4.4%Reduced
AlphaCrest Capital Management LLC6,989$334.0K0.02%−5,351−43.4%Reduced
Pacer Advisors, Inc.7,266$348.0K0.00%+7,266New