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Disclosery

TNDM TANDEM DIABETES CARE INC

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COM NEW (common), issuer CIK 1438133

249 managers (255 13F filers) reported a position in TNDM shares at 2025-09-30, 75,082,306 shares in all. 39 filers opened a position and 57 filers sold out during the quarter.

Managers
249
13F filers
255
New
39
Added
76
Reduced
97
Sold out
57
Shares held by filers
75,082,306

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …708$9K<0.01%+5013F-HRTimelineGroup
Salomon & Ludwin, LLC604$8.88K<0.01%new13F-HRTimeline
Smartleaf Asset Management LLC737$8.69K<0.01%-51313F-HRTimeline
Covestor Ltd696$8K<0.01%+40613F-HRTimeline
Clearstead Advisors, LLC658$7.99K<0.01%+59113F-HRTimeline
Global Retirement Partners, LLC600$7.28K<0.01%-4213F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…579$7.03K<0.01%+41013F-HRTimelineGroup
Quent Capital, LLC517$6.28K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.460$5.58K<0.01%new13F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…402$4.88K<0.01%new13F-HRTimelineGroup
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…389$4.72K<0.01%new13F-HRTimelineGroup
Wealthspire Advisors, LLC330$4.01K<0.01%new13F-HRTimeline
Versant Capital Management, Inc328$3.98K<0.01%-1,72813F-HRTimeline
NFSG Corp320$3.88K<0.01%013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…317$3.85K<0.01%+28713F-HRTimelineGroup
Allworth Financial LP287$3.48K<0.01%+26113F-HRTimeline
Banque Cantonale Vaudoisein group Banque Cantonale Vaudoise237$3K<0.01%013F-HRTimelineGroup
SIGNATUREFD, LLC232$2.82K<0.01%-53913F-HRTimeline
HARBOUR INVESTMENTS, INC.204$2.48K<0.01%013F-HRTimeline
MATHER GROUP, LLC.175$2.12K<0.01%new13F-HRTimeline
Sterling Capital Management LLC162$1.97K<0.01%+113F-HRTimeline
MAI Capital Management114$1.38K<0.01%-60713F-HRTimeline
TOTH FINANCIAL ADVISORY CORP100$1.21K<0.01%013F-HRTimeline
NewEdge Advisors, LLC100$1.21K<0.01%-35213F-HRTimeline
Front Row Advisors LLC100$1.21K<0.01%013F-HRTimeline
Larson Financial Group LLC100$1.21K<0.01%+6913F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC85$1K<0.01%-24,96113F-HRTimelineGroup
Federation des caisses Desjardins du Qu…75$911<0.01%013F-HRTimeline
Prestige Wealth Management Group LLC65$790<0.01%013F-HR/ATimeline
IFP Advisors, Inc65$789<0.01%+6513F-HR/ATimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…50$607<0.01%013F-HRTimelineGroup
True Wealth Design, LLC44$535<0.01%-2613F-HRTimeline
Bare Financial Services, Inc42$510<0.01%+1913F-HRTimeline
Golden State Wealth Management, LLC41$498<0.01%013F-HRTimeline
EASTERN BANK32$388<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC25$304<0.01%-10013F-HRTimeline
SBI Securities Co., Ltd.25$304<0.01%+713F-HRTimeline
Parkside Financial Bank & Trust24$292<0.01%+913F-HRTimeline
UMB Bank, n.a.24$291<0.01%-30513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Parallel Advisors, LLC23$279<0.01%-56613F-HRTimeline
JFS WEALTH ADVISORS, LLC15$183<0.01%013F-HRTimeline
Clearstead Trust, LLC13$158<0.01%013F-HRTimeline
EVERMAY WEALTH MANAGEMENT LLC9$110<0.01%013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.6$73<0.01%013F-HRTimelineGroup
Abound Wealth Management6$73<0.01%013F-HRTimeline
Bell Investment Advisors, Inc4$49<0.01%-3213F-HRTimeline
Abich Financial Wealth Management LLC2$24<0.01%13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$12<0.01%-2213F-HRTimelineGroup
HANTZ FINANCIAL SERVICES, INC.38$00%-213F-HRTimelineValue filed as zero, left out of ratios. The filing omitted confidential holdings, a later amendment may add them.