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Disclosery

TNDM TANDEM DIABETES CARE INC

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COM NEW (common), issuer CIK 1438133

267 managers (274 13F filers) reported a position in TNDM shares at 2026-06-30, 78,719,380 shares in all. 45 filers opened a position and 46 filers sold out during the quarter.

Managers
267
13F filers
274
New
45
Added
95
Reduced
91
Sold out
46
Shares held by filers
78,719,380

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
Allworth Financial LP1,138$17.2K<0.01%+49313F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,130$17.1K<0.01%-19213F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,098$16.6K<0.01%-25013F-HRTimelineGroup
SALEM INVESTMENT COUNSELORS INC1,000$15.1K<0.01%013F-HRTimeline
Aster Capital Management (DIFC) Ltd873$13.2K<0.01%-95713F-HR/ATimeline
Nykredit A/Sin group Nykredit A/S825$12.4K<0.01%13F-HR/ATimelineGroup
HANTZ FINANCIAL SERVICES, INC.828$12K<0.01%+10713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
MassMutual Private Wealth & Trust, FSB707$10.7K<0.01%new13F-HRTimeline
Salomon & Ludwin, LLC595$9.37K<0.01%-18113F-HRTimeline
China Universal Asset Management Co., L…500$7.54K<0.01%-4,50013F-HRTimeline
Smartleaf Asset Management LLC440$6.96K<0.01%013F-HRTimeline
SIGNATUREFD, LLC452$6.82K<0.01%-2513F-HRTimeline
UMB Bank, n.a.437$6.59K<0.01%-713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Optiver Holding B.V.in group Optiver Holding B.V.434$6.55K<0.01%+42613F-HRTimelineGroup
Larson Financial Group LLC426$6.43K<0.01%-37813F-HRTimeline
Covestor Ltd403$6K<0.01%+1813F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC348$5.25K<0.01%013F-HRTimeline
Versant Capital Management, Inc328$4.95K<0.01%-3,00713F-HRTimeline
Quent Capital, LLC309$4.66K<0.01%013F-HRTimeline
Fulcrum Asset Management LLP280$4.43K<0.01%new13F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…290$4.38K<0.01%-1,34413F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC269$4.06K<0.01%+13613F-HRTimeline
Essential Partners LLC265$4K<0.01%-2,62313F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…260$3.92K<0.01%-17313F-HRTimelineGroup
Sterling Capital Management LLC245$3.7K<0.01%-19413F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors215$3.4K<0.01%+9313F-HRTimelineGroup
True Wealth Design, LLC205$3.09K<0.01%-213F-HRTimeline
HARBOUR INVESTMENTS, INC.204$3.08K<0.01%013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/183$2.76K<0.01%new13F-HRTimelineGroup
SJS Investment Consulting Inc.165$2.49K<0.01%-15613F-HRTimeline
IFP Advisors, Inc164$2.48K<0.01%+9513F-HRTimeline
Front Row Advisors LLC100$2.34K<0.01%013F-HRTimeline
TOTH FINANCIAL ADVISORY CORP100$1.51K<0.01%013F-HRTimeline
Continuum Advisory, LLC100$1.51K<0.01%new13F-HRTimeline
Quarry LP96$1.45K<0.01%new13F-HRTimeline
Keating Financial Advisory Services, In…77$1.16K<0.01%013F-HRTimeline
Fortitude Family Office, LLC70$1.06K<0.01%-2713F-HRTimeline
Elequin Capital, LP67$1.01K<0.01%+4313F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC90$1K<0.01%013F-HRTimelineGroup
Parallel Advisors, LLC65$981<0.01%-20013F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC60$906<0.01%+4613F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC60$905<0.01%013F-HRTimeline
Parkside Financial Bank & Trust56$846<0.01%013F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…50$755<0.01%013F-HRTimelineGroup
IFG Advisory, LLC50$755<0.01%new13F-HRTimeline
Ritter Daniher Financial Advisory LLC /…50$755<0.01%new13F-HRTimeline
Archer Investment Corp45$679<0.01%new13F-HR/ATimeline
Cornerstone Planning Group LLC40$676<0.01%013F-HRTimeline
Bare Financial Services, Inc42$634<0.01%013F-HRTimeline
Golden State Wealth Management, LLC41$619<0.01%013F-HRTimeline
Signature Equity Partners, LLC41$619<0.01%new13F-HRTimeline
Clearstead Advisors, LLC35$529<0.01%new13F-HRTimeline
EASTERN BANK32$483<0.01%013F-HRTimeline
SBI Securities Co., Ltd.28$423<0.01%013F-HRTimeline
Silver Grove Financial Group, Inc.27$407<0.01%new13F-HRTimeline
JFS WEALTH ADVISORS, LLC24$363<0.01%+913F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…17$256<0.01%-37213F-HRTimelineGroup
Aventura Private Wealth, LLC16$241<0.01%new13F-HRTimeline
Accordant Advisory Group Inc12$182<0.01%013F-HRTimeline
Cedar Mountain Advisors, LLC12$181<0.01%013F-HRTimeline
Plante Moran Financial Advisors, LLC11$166<0.01%new13F-HRTimeline
Ankerstar Wealth, LLC11$166<0.01%013F-HRTimeline
GILPIN WEALTH MANAGEMENT, LLC9$136<0.01%-313F-HRTimeline
Davis Capital Management4$60<0.01%new13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$15<0.01%013F-HRTimelineGroup
Wealth Enhancement Trust Services, Inc.1$15<0.01%new13F-HR/ATimeline
Evolution Advisers, Inc.5$00%new13F-HRTimelineValue filed as zero, left out of ratios.