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Disclosery

TNDM TANDEM DIABETES CARE INC

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COM NEW (common), issuer CIK 1438133

264 managers (272 13F filers) reported a position in TNDM shares at 2025-06-30, 80,979,487 shares in all. 39 filers opened a position and 42 filers sold out during the quarter.

Managers
264
13F filers
272
New
39
Added
117
Reduced
71
Sold out
42
Shares held by filers
80,979,487

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 2025

Filers in the available 13F reports with a share position at 2025-06-30, 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
BlackRock, Inc.in group BlackRock, Inc.10,871,558$203M<0.01%-157,15413F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC7,369,830$137M<0.01%+77,66113F-HRTimelineGroup
Sessa Capital IM, L.P.5,000,000$93.2M2.84%+533,69313F-HRTimeline
GW&K Investment Management, LLC2,890,130$53.9M0.48%+26,14313F-HRTimeline
ArrowMark Colorado Holdings LLC2,699,549$50.3M0.91%-16,78313F-HRTimeline
STATE STREET CORPin group STATE STREET CORP2,645,889$49.3M<0.01%-41,85013F-HRTimelineGroup
Hood River Capital Management LLC2,564,978$47.8M0.67%+252,93413F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding2,120,810$39.5M+799,785Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,886,475$35.2M0.01%+1,173,91613F-HRTimelineGroup
Paradice Investment Management LLCin group Paradice Investment Managemen…1,767,179$32.9M6.69%+117,27213F-HRTimelineGroup
Stephens Investment Management Group LLCin group Stephens Investment Managemen…1,737,769$32.4M0.43%+30,85413F-HRTimelineGroup
JENNISON ASSOCIATES LLC1,658,942$30.9M0.02%+181,83413F-HRTimeline
UBS Group AGgroup of 2 filers holding1,652,847$30.8M+623,162Timeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,606,336$29.9M<0.01%+49,12613F-HRTimelineGroup
Champlain Investment Partners, LLC1,455,123$27.1M0.19%+86,23513F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC1,431,307$26.7M0.1%-40,26213F-HRTimeline
Ophir Asset Management Pty Ltd1,464,956$24.4M3.88%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,265,534$23.6M<0.01%+334,56513F-HRTimelineGroup
BAILLIE GIFFORD & COin group BAILLIE GIFFORD & CO1,125,728$21M0.02%+393,15413F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC1,057,115$19.7M0.03%+131,80513F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC969,073$18.1M0.02%+741,48813F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…784,218$14.6M0.05%+139,23013F-HRTimeline
Capital World Investors767,000$14.3M<0.01%013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP700,381$13.1M<0.01%+10,84713F-HRTimelineGroup
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC667,345$12.4M0.06%-786,89413F-HRTimelineGroup
Nuveen, LLCin group TIAA628,497$11.7M<0.01%+320,18213F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co617,000$11.5M<0.01%+46,85013F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding573,366$10.7MnewTimeline
BARCLAYS PLCin group BARCLAYS PLC567,072$10.6M<0.01%+53,06613F-HR/ATimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO562,254$10.5M<0.01%+328,48913F-HRTimelineGroup
BROWN CAPITAL MANAGEMENT LLC551,207$10.3M0.3%-39,80713F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA549,542$10.2M<0.01%+337,87613F-HR/ATimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/545,504$10.2M<0.01%+78,77413F-HRTimelineGroup
ALGERT GLOBAL LLC530,914$9.9M0.21%+321,59413F-HR/ATimeline
FMR LLCin group FMR LLC524,675$9.78M<0.01%-912,40113F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding504,448$9.4M+322,197Timeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC419,037$7.81M<0.01%+31,15013F-HRTimelineGroup
ExodusPoint Capital Management, LP417,308$7.78M0.09%+401,32213F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC382,804$7.7M0.01%+210,74013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp399,003$7.44M<0.01%-8,47913F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding395,662$7.38M-4,009Timeline
Trexquant Investment LP368,530$6.87M0.08%new13F-HRTimeline
FRONTIER CAPITAL MANAGEMENT CO LLC364,098$6.79M0.06%-1,07813F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS361,878$6.75M0.01%-97,92013F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC358,516$6.68M0.01%+125,64413F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc356,218$6.64M0.01%013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC352,959$6.58M0.01%+238,92513F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC346,160$6.45M0.04%+6513F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC342,327$6.38M0.01%+56,20013F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.338,668$6.31M0.01%new13F-HRTimelineGroup
Quantinno Capital Management LP319,659$5.96M0.03%+77,82813F-HRTimeline
TUDOR INVESTMENT CORP ET AL311,517$5.81M0.04%-93,77513F-HRTimeline
DAFNA Capital Management LLC294,208$5.48M1.51%013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC278,010$5.18M<0.01%-40,52013F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.270,339$5.04M<0.01%+89,63113F-HRTimeline
EDMOND DE ROTHSCHILD HOLDING S.A.in group EDMOND DE ROTHSCHILD HOLDING …262,600$4.89M0.08%+10,00013F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.262,431$4.89M0.05%+223,57413F-HRTimeline
Lisanti Capital Growth, LLC253,840$4.73M1.31%new13F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…250,000$4.66M0.01%new13F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management230,934$4.3M0.01%-538,80913F-HRTimelineGroup
Public Sector Pension Investment Board227,104$4.23M0.02%+18,87313F-HRTimeline
Invesco Ltd.in group Invesco Ltd.226,789$4.23M<0.01%-10,33313F-HRTimelineGroup
Verition Fund Management LLC218,586$4.07M0.02%+188,66813F-HRTimeline
SECTOR GAMMA AS210,523$3.92M1.28%+30,00013F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/210,332$3.92M<0.01%+198,94213F-HRTimelineGroup
Soleus Capital Management, L.P.200,000$3.73M0.26%-296,03913F-HRTimeline
Schonfeld Strategic Advisors LLC199,756$3.72M0.03%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…198,713$3.7M<0.01%+59,61913F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND197,775$3.69M<0.01%013F-HR/ATimeline
RHUMBLINE ADVISERS193,219$3.6M<0.01%+14,94513F-HRTimeline
KBC Group NVin group KBC Group NV191,837$3.58M0.01%-1,97113F-HRTimelineGroup
FIL Ltdin group FIL Ltd191,417$3.57M<0.01%-1,07713F-HRTimelineGroup
1492 Capital Management LLC188,754$3.52M1.62%+166,30813F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO186,731$3.48M<0.01%+62,37513F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc184,853$3.45M<0.01%+7,86613F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC180,660$3.37M0.01%+56,77713F-HR/ATimelineGroup
Divisadero Street Capital Management, LPin group Divisadero Street Capital Man…174,692$3.26M0.22%013F-HRTimelineGroup
Engineers Gate Manager LP170,488$3.18M0.04%-20,41713F-HRTimeline
PDT Partners, LLC170,420$3.18M0.18%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC162,950$3.04M0.04%new13F-HR/ATimelineGroup
Aquatic Capital Management LLC162,030$3.02M0.06%+139,38213F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD160,619$2.99M0.01%+4,40713F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC143,274$2.67M<0.01%-43,35413F-HRTimelineGroup
MIZUHO MARKETS AMERICAS LLCin group MIZUHO FINANCIAL GROUP INC138,742$2.59M0.09%+22,97013F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC137,749$2.57M<0.01%+1,05113F-HRTimelineGroup
Swiss National Bank127,300$2.37M<0.01%013F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP123,531$2.3M<0.01%-15,01613F-HRTimelineGroup
FORMULA GROWTH LTD122,096$2.28M0.86%-1,84913F-HRTimeline
HighTower Advisors, LLC121,460$2.26M<0.01%+54,29213F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC117,702$2.19M0.05%-69,44113F-HRTimeline
RICE HALL JAMES & ASSOCIATES, LLC103,954$1.94M0.1%-1,00213F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …101,346$1.89M<0.01%+13,52313F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding99,698$1.86M-10,775Timeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…94,734$1.77M0.02%+83,95513F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC90,108$1.68M<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC87,125$1.62M<0.01%-14,06413F-HRTimelineGroup
BANQUE PICTET & CIE SA84,028$1.57M0.02%new13F-HRTimeline
Gotham Asset Management, LLC82,432$1.54M0.01%+13,80313F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC82,262$1.53M<0.01%+6,25713F-HRTimelineGroup
Man Group plcin group Man Group plc74,886$1.4M<0.01%+47,56513F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…68,300$1.27M<0.01%+10013F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP61,002$1.14M0.05%-9,12613F-HRTimeline
Centiva Capital, LP61,001$1.14M0.08%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…60,598$1.13M<0.01%-63913F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP59,726$1.11M0.02%-44,72513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/59,203$1.1M<0.01%+6,36013F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co56,332$1.05M<0.01%+3,05413F-HRTimelineGroup
GROUP ONE TRADING LLC55,940$1.04M0.03%+4,48013F-HRTimeline
Natixis Investment Managersgroup of 2 filers holding54,612$1.02M-10,961Timeline
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …54,041$1.01M0.01%-18,71113F-HRTimelineGroup
BEACONLIGHT CAPITAL, LLC53,455$996K0.58%-166,30213F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN50,281$937K<0.01%-16,62913F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…48,977$913K<0.01%+73613F-HR/ATimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\48,373$902K<0.01%-5,79113F-HRTimelineGroup
Legato Capital Management LLC48,185$898K0.11%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC47,343$882K0.01%-3,13613F-HRTimeline
COMMERCE BANKin group COMMERCE BANK45,102$841K<0.01%+13,33513F-HRTimelineGroup
Orion Porfolio Solutions, LLC44,611$832K0.01%-2,47713F-HR/ATimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC41,004$764K<0.01%+28,93513F-HRTimelineGroup
State of Alaska, Department of Revenue39,660$739K0.01%+3,26913F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…39,091$729K<0.01%013F-HRTimelineGroup
LPL Financial LLC37,460$698K<0.01%-15,81213F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al36,900$688K<0.01%+8,50013F-HRTimeline
State of Tennessee, Department of Treas…36,189$675K<0.01%+6,35313F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP35,529$662K<0.01%+23413F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\35,360$659K<0.01%-7,32813F-HRTimelineGroup
Quantbot Technologies LP33,445$623K0.02%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …33,201$619K<0.01%+40813F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS31,576$589K<0.01%-88913F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.31,516$587K0.1%new13F-HRTimeline
Assenagon Asset Management S.A.31,403$585K<0.01%new13F-HRTimeline
Louisiana State Employees Retirement Sy…31,100$580K0.01%+20013F-HRTimeline
Campbell & CO Investment Adviser LLC30,108$561K0.04%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson29,811$556K<0.01%013F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC29,742$554K<0.01%+15,59813F-HRTimelineGroup
COMERICA BANK29,554$551K<0.01%-13813F-HRTimeline
Bayesian Capital Management, LP28,400$529K0.08%new13F-HRTimeline
SG Americas Securities, LLC27,760$517K<0.01%+11,40713F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources26,950$502K<0.01%-72113F-HRTimelineGroup
Dynamic Technology Lab Private Ltd26,143$488K0.07%+14,37713F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC25,145$469K0.01%+14413F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC25,046$467K<0.01%+2,53713F-HRTimelineGroup
Advisors Asset Management, Inc.25,001$466K0.01%+2,54113F-HR/ATimeline
Ensign Peak Advisors, Inc24,982$466K<0.01%-55013F-HRTimeline
Summit Trail Advisors, LLC24,880$464K0.01%new13F-HRTimeline
CAPTRUST FINANCIAL ADVISORS24,766$462K<0.01%+3,24913F-HRTimeline
HighMark Wealth Management LLC23,670$441K0.22%-1,50013F-HRTimeline
SHELL ASSET MANAGEMENT CO22,852$426K0.01%-2,42913F-HRTimeline
Petrus Trust Company, LTA22,669$423K0.04%new13F-HRTimeline
Handelsbanken Fonder AB22,000$410K<0.01%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…21,449$400K<0.01%013F-HRTimeline
State of Wyoming21,436$400K0.05%+16,96913F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…21,290$397K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…20,954$391K<0.01%+1,71913F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC20,843$389K0.04%+2,95013F-HRTimelineGroup
Maryland State Retirement & Pension Sys…19,575$365K0.01%+43813F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM19,408$362K<0.01%+59513F-HRTimeline
AMALGAMATED BANK18,960$353K<0.01%+18413F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd18,793$350K0.01%new13F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…18,552$346K<0.01%013F-HRTimeline
Bridgefront Capital, LLC18,278$341K0.09%+51413F-HRTimeline
Mariner, LLCin group Mariner, LLC17,741$331K<0.01%-4,40413F-HRTimelineGroup
AlphaQuest LLC17,371$324K0.03%+8,81013F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC17,233$321K<0.01%-6113F-HR/ATimelineGroup
OP Asset Management Ltd17,114$319K<0.01%-5,88613F-HR/ATimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…17,101$319K<0.01%+1,38413F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.16,483$307K0.01%+4,81513F-HRTimelineGroup
DIVERSIFIED TRUST CO16,348$305K0.01%+1,72513F-HRTimeline
Police & Firemen's Retirement System of…15,299$285K<0.01%+1,39913F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND15,271$285K0.01%+30013F-HRTimeline
ProShare Advisors LLC14,919$278K<0.01%-54513F-HRTimeline
Cetera Investment Advisers14,723$274K<0.01%-3,97713F-HRTimeline
KLP KAPITALFORVALTNING AS13,500$252K<0.01%013F-HRTimeline
Corton Capital Inc.13,038$243K0.28%new13F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …12,411$231K<0.01%new13F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC12,160$227K<0.01%-8513F-HRTimeline
IQ EQ FUND MANAGEMENT (IRELAND) Ltd11,851$221K0.02%013F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP11,800$220K<0.01%+53113F-HR/ATimelineGroup
Apollon Wealth Management, LLCin group Apollon Wealth Management, LLC11,366$212K<0.01%+29213F-HRTimelineGroup
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC10,938$204K<0.01%-77013F-HRTimelineGroup
SIMPLEX TRADING, LLC10,434$194K0.01%+8,93113F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC10,138$189K0.01%new13F-HRTimelineGroup
Amundiin group Amundi11,022$188K<0.01%-14,16213F-HRTimelineGroup
Advisory Services Network, LLC11,461$179K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.9,279$173K<0.01%+14513F-HR/ATimelineGroup
Bayforest Capital Ltd9,271$173K0.08%-17,01713F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…9,168$171K<0.01%+6,29013F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…7,650$143K<0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.group of 2 filers holding6,920$129K+50Timeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP6,541$122K<0.01%-85713F-HRTimelineGroup
SUMMIT SECURITIES GROUP LLC6,160$115K0.04%new13F-HRTimeline
Leonteq Securities AG5,891$110K0.01%-95713F-HRTimeline
Brooklyn Investment Group4,733$88.2K0.01%+1,33613F-HR/ATimeline
NISA INVESTMENT ADVISORS, LLC4,171$77.7K<0.01%+2,71713F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC2,911$54K<0.01%+26013F-HRTimelineGroup
CWM, LLCin group CWM, LLC2,796$52K<0.01%+2,02513F-HRTimelineGroup
Farther Finance Advisors, LLC2,637$49.2K<0.01%-1,47913F-HRTimeline
Stonehage Fleming Financial Services Ho…in group Stonehage Fleming Financial S…2,551$47.5K<0.01%013F-HRTimelineGroup
CREATIVE FINANCIAL DESIGNS INC /ADV2,522$47K<0.01%013F-HRTimeline
Versant Capital Management, Inc2,056$38.3K0.01%+1,28413F-HRTimeline