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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.

Q3 2023 vs. Q2 2023

How the institutions holding Tandem Diabetes Care Inc changed between Q2 2023 and Q3 2023.

All holders in Q3 2023All holders in Q2 2023

13F holders of TNDM: Q2 2023 compared with Q3 2023
MeasureQ2 2023Of which not filed for Q3 2023Q3 2023Change
Holders2472226−19
Shares67.2M16869.6M+2.42M (+3.6%)
Value$1.65B$4.12K$1.45B−$204.6M (−12.4%)

2 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (26)

Institutions that held Tandem Diabetes Care Inc at the end of Q3 2023 but not at the end of Q2 2023.

Institutions new to TNDM in Q3 2023
InstitutionSharesValue% of portfolio
ArrowMark Colorado Holdings LLC1,631,544$33.9M0.41%
Integral Health Asset Management, LLC130,000$2.70M0.38%
Banque Pictet & Cie SA110,519$2.30M0.03%
Rice Hall James & Associates, LLC107,376$2.23M0.14%
Trexquant Investment LP62,323$1.29M0.03%
Millrace Asset Group, Inc.54,706$1.14M1.40%
Two Sigma Securities, LLC32,765$680.5K0.03%
Comerica Bank29,844$619.9K0.00%
M&T Bank Corp22,706$471.5K0.00%
Bokf, NA22,414$387.8K0.01%
Waterfront Wealth Inc.16,878$328.6K0.11%
Pacific Capital Partners Ltd15,005$311.7K0.19%
Franklin Resources Inc13,156$273.3K0.00%
Lombard Odier Asset Management (USA) Corp8,225$171.0K0.03%
Counterpoint Mutual Funds LLC6,393$132.8K0.11%
Stonebridge Capital Advisors LLC5,400$112.2K0.01%
Point72 Asset Management, L.P.1,308$27.2K0.00%
NBC Securities, Inc.587$12.0K0.00%
First Horizon Advisors, Inc.199$4.13K0.00%
Creative Planning125$2.60K0.00%
Steward Partners Investment Advisory, LLC70$1.45K0.00%
Central Trust Co20$4160.00%
Whittier Trust Co17$3530.00%
Cary Street Partner Investment Advisory LLC5$1040.00%
Proequities, Inc.1$200.00%
Harel Insurance Investments & Financial Services Ltd.2$00.00%

Sold out (45)

Institutions that held Tandem Diabetes Care Inc at the end of Q2 2023 and filed for Q3 2023 without it.

Institutions that sold out of TNDM in Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
Octagon Capital Advisors LP474,929$11.7M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.427,025$10.5M
Eagle Health Investments LP320,325$7.86M
Walleye Capital LLC215,299$5.28M
Man Group plc191,923$4.71M
Essex Investment Management Co LLC175,688$4.31M
Kennedy Capital Management, Inc.140,704$3.45M
1492 Capital Management LLC95,074$2.33M
HRT Financial LP84,677$2.08M
Amundi73,446$1.81M
Seven Eight Capital, LP51,861$1.27M
Twinbeech Capital LP48,469$1.19M
Schonfeld Strategic Advisors LLC42,514$1.04M
Candriam Luxembourg S.C.A.36,587$897.8K
Voss Capital, LLC35,000$858.9K
Oak Thistle LLC24,643$604.7K
Divisadero Street Capital Management, LP20,000$490.8K
Legato Capital Management LLC14,676$360.1K
Y-Intercept (Hong Kong) Ltd14,265$350.1K
Centiva Capital, LP14,034$344.4K
Bridge City Capital, LLC13,469$330.5K
Dynamic Technology Lab Private Ltd12,640$310.0K
Assenagon Asset Management S.A.12,053$295.8K
NinePointTwo Capital11,023$270.0K
Gabelli Funds LLC11,000$269.9K
Fox Run Management, L.L.C.10,963$269.0K
Duality Advisers, LP10,950$268.7K
Lattice Capital Management, LLC9,200$225.8K
Guggenheim Capital LLC9,190$225.5K
Baird Financial Group, Inc.9,169$225.0K
Aigen Investment Management, LP8,632$211.8K
Engineers Gate Manager LP8,504$208.7K
Allianz Asset Management GmbH8,400$206.1K
Crossmark Global Holdings, Inc.5,754$205.0K
Leonteq Securities AG6,512$159.8K
Aquatic Capital Management LLC3,900$96.0K
Gilder Gagnon Howe & Co LLC2,710$66.5K
Group One Trading, L.P.719$17.6K
Acadian Asset Management LLC669$16.0K
Headlands Technologies LLC549$13.5K
Loomis Sayles & Co L P79$2.00K
NewSquare Capital LLC65$1.59K
Fiduciary Alliance LLC42$1.03K
Baker Avenue Asset Management, LP26$638
Prestige Wealth Management Group LLC24$589

Not filed for Q3 2023 yet (2)

Institutions that held Tandem Diabetes Care Inc at the end of Q2 2023 and haven't filed a 13F for Q3 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding TNDM in Q2 2023 that haven't filed for Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
Kistler-Tiffany Companies, LLC125$3.07K
Coastal Capital Group, Inc.43$1.05K