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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, Q1 2022

Institutional positions in Tandem Diabetes Care Inc as of Mar 31, 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
379
−4 vs. Q4 2021
Shares held
59.5M
−891.8K (−1.5%) vs. Q4 2021
Total value
$6.92B
−$2.17B (−23.8%) vs. Q4 2021
New holders
62
153 more added
Sold out
66
119 more reduced

5 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2021: 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 holdersQ1 2022: 379 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 heldQ1 2022: $6.92B
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, Q1 2022

Shares, value and share of portfolio for each institution holding Tandem Diabetes Care Inc; share changes are against Q4 2021.

Institutions holding TNDM in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Versant Capital Management, Inc4$00.00%00.0%Unchanged
Capital Advisors, Ltd. LLC2$00.00%+2New
USA Financial Portformulas Corp2$00.00%+2New
Sutton Wealth Advisors Inc.2$2330.00%−5−71.4%Reduced
Huntington National Bank11$1.00K0.00%00.0%Unchanged
Evermay Wealth Management LLC9$1.00K0.00%00.0%Unchanged
Massmutual Trust Co FSB6$1.00K0.00%+1+20.0%Added
Sterling Investment Advisors, Ltd.7$1.00K0.00%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC7$1.00K0.00%+7New
Allworth Financial LP7$1.00K0.00%+7New
Lindbrook Capital, LLC8$1.00K0.00%+8New
Sandy Spring Bank15$2.00K0.00%−85−85.0%Reduced
BerganKDV Wealth Management, LLC14$2.00K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC20$2.00K0.00%+10+100.0%Added
CVA Family Office, LLC15$2.00K0.00%00.0%Unchanged
Glassman Wealth Services16$2.00K0.00%+8+100.0%Added
Loomis Sayles & Co L P21$2.00K0.00%+21New
Whittier Trust Co15$2.00K0.00%+15New
Providence Capital Advisors, LLC15$2.00K0.00%+15New
Elequin Capital LP24$3.00K0.00%+7+41.2%Added
TCWP LLC27$3.00K0.00%+27New
Bessemer Group Inc35$4.00K0.00%+5+16.7%Added
Cambridge Trust Co32$4.00K0.00%00.0%Unchanged
Quent Capital, LLC34$4.00K0.00%00.0%Unchanged
Ellevest, Inc.39$5.00K0.00%−16−29.1%Reduced
Focused Wealth Management, Inc40$5.00K0.00%00.0%Unchanged
Money Concepts Capital Corp40$5.00K0.00%+40New
Prospera Financial Services Inc50$6.00K0.00%−14,416−99.7%Reduced
Meeder Asset Management Inc50$6.00K0.00%−6−10.7%Reduced
Montag A & Associates Inc55$6.00K0.00%00.0%Unchanged
Signaturefd, LLC59$7.00K0.00%+45+321.4%Added
Parkside Financial Bank & Trust70$8.00K0.00%−4−5.4%Reduced
Parallel Advisors, LLC69$8.00K0.00%+56+430.8%Added
Umb Bank N A84$10.0K0.00%+84New
Fifth Third Bancorp96$11.0K0.00%−4,096−97.7%Reduced
Rockefeller Capital Management L.P.102$11.0K0.00%−2−1.9%Reduced
Ancora Advisors, LLC94$11.0K0.00%+80+571.4%Added
Front Row Advisors LLC100$12.0K0.00%00.0%Unchanged
Stonebridge Capital Advisors LLC100$12.0K0.00%+100New
Charter Oak Capital Management, LLC100$12.0K0.00%+100New
First Horizon Advisors, Inc.112$13.0K0.00%+1+0.9%Added
Ellis Investment Partners, LLC130$15.0K0.00%00.0%Unchanged
Riverview Trust Co138$16.0K0.01%+138New
Fortitude Advisory Group L.L.C.148$17.0K0.01%00.0%Unchanged
Nisa Investment Advisors, LLC150$17.0K0.00%−25−14.3%Reduced
Quadrant Capital Group LLC150$17.0K0.00%+42+38.9%Added
IFP Advisors, Inc801$19.0K0.00%+440+121.9%Added
Patriot Financial Group Insurance Agency, LLC160$19.0K0.00%−124−43.7%Reduced
Alpha Paradigm Partners, LLC166$19.0K0.01%+166New
TCI Wealth Advisors, Inc.180$21.0K0.00%−54−23.1%Reduced
FourThought Financial, LLC204$24.0K0.00%+4+2.0%Added
Byrne Asset Management LLC225$26.0K0.02%00.0%Unchanged
Kistler-Tiffany Companies, LLC245$28.0K0.01%00.0%Unchanged
Exane Derivatives280$32.6K0.01%+280New
American Portfolios Advisors283$32.9K0.00%−1,177−80.6%Reduced
Steward Partners Investment Advisory, LLC320$37.0K0.00%00.0%Unchanged
Ci Investments Inc.320$37.0K0.00%+317+10,566.7%Added
Toth Financial Advisory Corp325$38.0K0.01%00.0%Unchanged
Altshuler Shaham Ltd365$42.0K0.00%−473−56.4%Reduced
Sandy Cove Advisors, LLC392$46.0K0.04%+392New
Global Retirement Partners, LLC888$58.0K0.00%+888New
CWM, LLC553$64.0K0.00%+98+21.5%Added
Nkcfo LLC655$76.0K0.02%00.0%Unchanged
Newbridge Financial Services Group, Inc.751$87.0K0.04%−3,429−82.0%Reduced
FinTrust Capital Advisors, LLC755$88.0K0.02%00.0%Unchanged
Edmond de Rothschild Holding S.A.785$91.0K0.00%+99+14.4%Added
Stephens Inc931$108.0K0.00%+690+286.3%Added
Covestor Ltd951$111.0K0.08%−307−24.4%Reduced
Salem Investment Counselors Inc1,000$116.0K0.00%00.0%Unchanged
GPS Wealth Strategies Group, LLC1,144$133.0K0.03%+46+4.2%Added
National Bank of Canada1,141$133.0K0.00%+113+11.0%Added
Leonteq Securities AG1,290$150.0K0.01%00.0%Unchanged
Cutler Group LP1,451$168.0K0.02%+1,451New
Pacer Advisors, Inc.1,483$172.0K0.00%−7,551−83.6%Reduced
Banque Cantonale Vaudoise1,506$175.0K0.01%+864+134.6%Added
Simplex Trading, LLC1,713$199.0K0.01%+1,713New
Bailard, Inc.1,720$200.0K0.01%+1,720New
Oak Thistle LLC1,738$202.0K0.11%+1,738New
Derbend Asset Management1,347$203.0K0.20%00.0%Unchanged
Hightower 6M Holding, LLC1,769$206.0K0.02%+1,769New
LVW Advisors, LLC1,782$207.0K0.04%+90+5.3%Added
Astrantus Ltd1,911$222.0K0.37%+1,911New
Mount Yale Investment Advisors, LLC1,946$226.0K0.02%−11−0.6%Reduced
M&T Bank Corp1,995$233.0K0.00%00.0%Unchanged
Clarkston Capital Partners, LLC2,000$233.0K0.00%00.0%Unchanged
Bridgewater Advisors Inc.2,000$233.0K0.06%00.0%Unchanged
Western Wealth Management, LLC2,008$234.0K0.01%+2,008New
Appleton Partners Inc2,080$242.0K0.02%00.0%Unchanged
Los Angeles Capital Management LLC2,092$243.0K0.00%+112+5.7%Added
Truist Financial Corp2,096$244.0K0.00%00.0%Unchanged
American Trust2,163$252.0K0.02%+2,163New
Spearhead Capital Advisors, LLC2,198$256.0K0.03%−2,423−52.4%Reduced
Mackenzie Financial Corp2,200$256.0K0.00%+2,200New
Neo Ivy Capital Management2,280$266.0K0.24%+1,691+287.1%Added
Laurel Wealth Advisors, Inc.2,432$282.0K0.02%−220−8.3%Reduced
Keebeck Alpha, LP2,517$293.0K0.09%+660+35.5%Added
CIBC Asset Management Inc2,536$295.0K0.00%00.0%Unchanged
Cetera Advisors LLC2,586$301.0K0.01%+2,586New
Lazard Asset Management LLC2,616$304.0K0.00%+1,663+174.5%Added
MML Investors Services, LLC2,668$310.0K0.00%+201+8.1%Added