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Disclosery

TNDM TANDEM DIABETES CARE INC

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COM NEW (common), issuer CIK 1438133

266 managers (269 13F filers) reported a position in TNDM shares at 2025-12-31, 74,868,823 shares in all. 47 filers opened a position and 32 filers sold out during the quarter.

Managers
266
13F filers
269
New
47
Added
85
Reduced
99
Sold out
32
Shares held by filers
74,868,823

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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
NISA INVESTMENT ADVISORS, LLC1,335$29.3K<0.01%+44013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,051$23.1K<0.01%+47213F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…1,039$22.8K<0.01%+14513F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …979$22K<0.01%+27113F-HRTimelineGroup
WELLINGTON-ALTUS USA INC.808$17.8K0.01%13F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.735$16K<0.01%+69713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…686$15.1K<0.01%+36913F-HR/ATimelineGroup
Covestor Ltd696$15K0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…627$13.8K<0.01%+22513F-HR/ATimelineGroup
Salomon & Ludwin, LLC595$13.8K<0.01%-913F-HRTimeline
Global Retirement Partners, LLC600$13.2K<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC568$12.5K<0.01%-56413F-HRTimeline
Allworth Financial LP542$11.9K<0.01%+25513F-HRTimeline
Arax Advisory Partners498$10.9K<0.01%-6,65313F-HRTimeline
Quent Capital, LLC457$10K<0.01%-6013F-HRTimeline
Sterling Capital Management LLC444$9.76K<0.01%+28213F-HRTimeline
SUMMIT SECURITIES GROUP LLC432$9.49K<0.01%new13F-HRTimeline
Caitong International Asset Management …431$9.47K<0.01%-1,77413F-HR/ATimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…389$8.55K<0.01%013F-HRTimelineGroup
Torren Management, LLC379$8.33K<0.01%13F-HRTimeline
UMB Bank, n.a.377$8.29K<0.01%+35313F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Versant Capital Management, Inc377$8.29K<0.01%+4913F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC360$7.91K<0.01%new13F-HRTimelineGroup
SIGNATUREFD, LLC347$7.63K<0.01%+11513F-HRTimeline
Larson Financial Group LLC292$6.42K<0.01%+19213F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC348$5.08K<0.01%new13F-HRTimeline
HARBOUR INVESTMENTS, INC.204$4.48K<0.01%013F-HRTimeline
MAI Capital Management141$3.1K<0.01%+2713F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors128$2.88K<0.01%new13F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC123$2.7K<0.01%+9813F-HRTimeline
NFSG Corp120$2.64K<0.01%-20013F-HRTimeline
TOTH FINANCIAL ADVISORY CORP100$2.2K<0.01%013F-HRTimeline
NewEdge Advisors, LLC100$2.2K<0.01%013F-HRTimeline
Front Row Advisors LLC100$2.2K<0.01%013F-HRTimeline
Fortitude Family Office, LLC97$2.13K<0.01%new13F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC90$2K<0.01%+513F-HRTimelineGroup
Elequin Capital, LP90$1.98K<0.01%new13F-HRTimeline
Golden State Wealth Management, LLC80$1.76K<0.01%+3913F-HRTimeline
Federation des caisses Desjardins du Qu…75$1.65K<0.01%013F-HRTimeline
IFP Advisors, Inc69$1.52K<0.01%+413F-HRTimeline
True Wealth Design, LLC67$1.47K<0.01%+2313F-HRTimeline
Parallel Advisors, LLC65$1.43K<0.01%+4213F-HRTimeline
MassMutual Private Wealth & Trust, FSB64$1.41K<0.01%new13F-HRTimeline
Bare Financial Services, Inc64$1.41K<0.01%+2213F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC60$1.32K<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust56$1.23K<0.01%+3213F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…50$1.1K<0.01%013F-HRTimelineGroup
FLAGSHIP HARBOR ADVISORS, LLC49$1.08K<0.01%new13F-HRTimeline
ORG Partners LLC40$879<0.01%new13F-HRTimeline
Bell Investment Advisors, Inc36$792<0.01%+3213F-HRTimeline
Cornerstone Planning Group LLC40$764<0.01%-8313F-HRTimeline
EASTERN BANK32$703<0.01%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.25$550<0.01%new13F-HRTimelineGroup
Basecamp Wealth Advisors LLC25$550<0.01%13F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.21$462<0.01%+1513F-HRTimelineGroup
Cedar Mountain Advisors, LLC20$440<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.20$440<0.01%-513F-HRTimeline
JFS WEALTH ADVISORS, LLC15$330<0.01%013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…15$330<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.11$242<0.01%new13F-HRTimeline
Ankerstar Wealth, LLC11$242<0.01%13F-HRTimeline
Nemes Rush Group LLC8$176<0.01%new13F-HRTimeline
Abound Wealth Management6$132<0.01%013F-HRTimeline
GILPIN WEALTH MANAGEMENT, LLC5$110<0.01%13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$22<0.01%013F-HRTimelineGroup
Dunhill Financial, LLC1$19<0.01%new13F-HRTimeline