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Disclosery

TNDM TANDEM DIABETES CARE INC

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COM NEW (common), issuer CIK 1438133

272 managers (276 13F filers) reported a position in TNDM shares at 2025-03-31, 73,063,415 shares in all. 36 filers opened a position and 76 filers sold out during the quarter.

Managers
272
13F filers
276
New
36
Added
107
Reduced
86
Sold out
76
Shares held by filers
73,063,415

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, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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
BlackRock, Inc.in group BlackRock, Inc.11,028,712$211M<0.01%-669,11213F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC7,292,169$140M<0.01%-147,83613F-HRTimelineGroup
Sessa Capital IM, L.P.4,466,307$85.6M3.53%new13F-HRTimeline
GW&K Investment Management, LLC2,863,987$54.9M0.51%+740,49913F-HRTimeline
ArrowMark Colorado Holdings LLC2,716,332$52M0.84%-7,38313F-HRTimeline
STATE STREET CORPin group STATE STREET CORP2,687,739$51.5M<0.01%-77,39813F-HRTimelineGroup
Hood River Capital Management LLC2,312,044$44.3M0.76%+1,033,99713F-HRTimeline
Stephens Investment Management Group LLCgroup of 2 filers holding1,706,915$32.7M+143,216Timeline
Paradice Investment Management LLCin group Paradice Investment Managemen…1,649,907$31.6M7.06%+693,50013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,557,210$29.8M<0.01%+23,38213F-HRTimelineGroup
JENNISON ASSOCIATES LLC1,477,108$28.3M0.02%+10,75313F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC1,471,569$28.2M0.11%-189,44413F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC1,454,239$27.9M0.16%-489,11713F-HRTimelineGroup
FMR LLCin group FMR LLC1,437,076$27.5M<0.01%+350,23413F-HRTimelineGroup
Champlain Investment Partners, LLC1,368,888$26.2M0.19%-10,97513F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding1,321,025$25.3M-421,946Timeline
Park West Asset Management LLC1,123,052$21.5M1.76%-476,94813F-HRTimeline
UBS Group AGgroup of 2 filers holding1,029,685$19.7M+225,596Timeline
MORGAN STANLEYin group MORGAN STANLEY930,969$17.8M<0.01%+83,86013F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC925,310$17.7M0.03%+12,22313F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management769,743$14.7M0.04%new13F-HRTimelineGroup
Capital World Investors767,000$14.7M<0.01%013F-HRTimeline
BAILLIE GIFFORD & COin group BAILLIE GIFFORD & CO732,574$14M0.01%-13,53513F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC712,559$13.7M<0.01%+34,06913F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP689,534$13.2M<0.01%-7,92213F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…644,988$12.4M0.05%+129,92613F-HRTimeline
BROWN CAPITAL MANAGEMENT LLC591,014$11.3M0.34%-51,00613F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co570,150$10.9M<0.01%-32,17113F-HR/ATimelineGroup
BARCLAYS PLCin group BARCLAYS PLC514,006$9.85M<0.01%+37,03213F-HR/ATimelineGroup
Soleus Capital Management, L.P.496,039$9.5M0.75%new13F-HRTimeline
KINGDON CAPITAL MANAGEMENT, L.L.C.495,229$9.49M1.97%-295,31813F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/466,730$8.94M<0.01%+149,02413F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS459,798$8.81M0.01%+434,97913F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp407,482$7.81M<0.01%-29,21013F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL405,292$7.77M0.07%+236,24913F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding399,671$7.66M+11,103Timeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC387,887$7.22M<0.01%+42,20613F-HRTimelineGroup
FRONTIER CAPITAL MANAGEMENT CO LLC365,176$7M0.08%+93,08813F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc356,218$6.83M0.01%+107,35413F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC346,095$6.63M0.05%-47013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding318,530$6.1M+57,907Timeline
Nuveen, LLCin group TIAA308,315$5.91M<0.01%13F-HRTimelineGroup
DAFNA Capital Management LLC294,208$5.64M1.6%+71,00013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC286,127$5.48M0.01%-29,60013F-HRTimeline
EDMOND DE ROTHSCHILD HOLDING S.A.in group EDMOND DE ROTHSCHILD HOLDING …252,600$4.84M0.09%new13F-HRTimelineGroup
First Light Asset Management, LLC245,257$4.7M0.54%-46,86013F-HRTimeline
Quantinno Capital Management LP241,831$4.63M0.03%+190,21913F-HRTimeline
Invesco Ltd.in group Invesco Ltd.237,122$4.54M<0.01%+32,23213F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO233,765$4.48M<0.01%-158,82113F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC232,872$4.46M0.01%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC227,585$4.36M<0.01%+76,24513F-HRTimelineGroup
BEACONLIGHT CAPITAL, LLC219,757$4.21M2.88%-111,45213F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA211,666$4.05M<0.01%+49,40813F-HR/ATimelineGroup
ALGERT GLOBAL LLC209,320$4.01M0.1%+119,78413F-HR/ATimeline
Public Sector Pension Investment Board208,231$3.99M0.02%+44,20913F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC172,064$3.82M0.01%-2,82013F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND197,775$3.79M0.01%-14,39113F-HR/ATimeline
KBC Group NVin group KBC Group NV193,808$3.71M0.01%+1,32913F-HRTimelineGroup
FIL Ltdin group FIL Ltd192,494$3.69M<0.01%-8,88213F-HRTimelineGroup
Engineers Gate Manager LP190,905$3.66M0.06%-31,90013F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC187,143$3.59M0.09%-80,21213F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC186,628$3.58M<0.01%+23,01413F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding182,251$3.49M+100,478Timeline
ALLIANCEBERNSTEIN L.P.180,708$3.46M<0.01%+86,90113F-HRTimeline
SECTOR GAMMA AS180,523$3.46M1.11%new13F-HRTimeline
RHUMBLINE ADVISERS178,274$3.42M<0.01%-43213F-HR/ATimeline
Legal & General Group Plcin group Legal & General Group Plc176,987$3.39M<0.01%-5,66813F-HRTimelineGroup
Divisadero Street Capital Management, LPin group Divisadero Street Capital Man…174,692$3.35M0.38%-185,54013F-HRTimelineGroup
iA Global Asset Management Inc.165,380$3.17M0.05%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD156,212$2.99M0.01%+13,75013F-HRTimeline
Polar Capital Holdings Plcin group Polar Capital Holdings Plc140,536$2.69M0.02%-2,36413F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…139,094$2.67M<0.01%-151,13413F-HRTimelineGroup
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP138,547$2.65M<0.01%+18,98613F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC136,698$2.62M<0.01%+38,51913F-HR/ATimelineGroup
GSA CAPITAL PARTNERS LLP130,595$2.5M0.23%new13F-HRTimeline
Swiss National Bank127,300$2.44M<0.01%-1,40013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO124,356$2.38M<0.01%+54913F-HR/ATimelineGroup
FORMULA GROWTH LTD123,945$2.37M0.96%-2,02013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC123,883$2.37M0.01%+60,56413F-HR/ATimelineGroup
MIZUHO MARKETS AMERICAS LLCin group MIZUHO FINANCIAL GROUP INC115,772$2.22M0.05%+30,68013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC114,034$2.18M<0.01%-17,79213F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding110,473$2.12M-263,458Timeline
RICE HALL JAMES & ASSOCIATES, LLC104,956$2.01M0.12%-52613F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP104,451$2M0.07%+83,45313F-HR/ATimeline
CITIGROUP INCin group CITIGROUP INC101,189$1.94M<0.01%+5,97613F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …87,823$1.68M<0.01%new13F-HRTimelineGroup
JUPITER ASSET MANAGEMENT LTDin group JUPITER ASSET MANAGEMENT LTD87,815$1.68M0.02%new13F-HRTimelineGroup
MANGROVE PARTNERS IM, LLC82,428$1.58M0.18%+33,68713F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC76,005$1.46M<0.01%+18,52913F-HRTimelineGroup
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding72,752$1.39M+4,126Timeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP70,399$1.35M<0.01%-880,54913F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP70,128$1.34M0.06%new13F-HRTimeline
Gotham Asset Management, LLC68,629$1.31M0.01%-47,24713F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…68,200$1.31M<0.01%013F-HRTimeline
HighTower Advisors, LLC67,168$1.29M<0.01%+57,63513F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN66,910$1.28M<0.01%+5,65513F-HRTimelineGroup
NATIXIS ADVISORS, LLCin group Natixis Investment Managers65,573$1.26M<0.01%-10513F-HRTimelineGroup
HUSSMAN STRATEGIC ADVISORS, INC.63,000$1.21M0.29%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…61,237$1.17M<0.01%013F-HRTimeline
Semanteon Capital Management, LP55,413$1.06M0.58%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\54,164$1.04M<0.01%-7,60713F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co53,278$1.02M<0.01%-8,89513F-HRTimelineGroup
LPL Financial LLC53,272$1.02M<0.01%+5,23613F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/52,843$1.01M<0.01%+2,10313F-HRTimeline
JB Capital LLC51,778$992K0.05%+12,56513F-HRTimeline
GROUP ONE TRADING LLC51,460$986K0.04%+49,87113F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC50,479$967K0.01%+21,82113F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…48,241$924K<0.01%-2,52413F-HR/ATimelineGroup
Orion Porfolio Solutions, LLC47,088$902K0.01%+17,01413F-HRTimeline
Orion Portfolio Solutions, LLC47,088$902K0.01%+17,01413F-HR/ATimeline
US BANCORP \DE\in group US BANCORP \DE\42,688$818K<0.01%+3,98013F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP39,876$764K<0.01%-38,02513F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…39,091$749K<0.01%-59713F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.38,857$744K0.01%-161,42013F-HRTimeline
Janney Montgomery Scott LLC38,450$737K<0.01%+8,21013F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC38,159$731K0.07%-59,53113F-HRTimeline
State of Alaska, Department of Revenue36,391$697K0.01%-93513F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…35,942$689K0.06%+16,30713F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP35,295$676K<0.01%+52213F-HRTimelineGroup
Corebridge Financial, Inc.in group Corebridge Financial, Inc.34,290$657K<0.01%-67213F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …32,793$628K<0.01%-2,23813F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS32,465$622K<0.01%+4,89513F-HRTimeline
COMMERCE BANKin group COMMERCE BANK31,767$609K<0.01%+4,87813F-HRTimelineGroup
Louisiana State Employees Retirement Sy…30,900$592K0.01%-90013F-HRTimeline
Versor Investments LP30,500$584K0.1%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson29,811$575K<0.01%013F-HRTimelineGroup
Verition Fund Management LLC29,918$573K<0.01%new13F-HRTimeline
State of Tennessee, Department of Treas…29,836$572K<0.01%013F-HRTimeline
COMERICA BANK29,692$569K<0.01%+1,73913F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al28,400$544K<0.01%13F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources27,671$530K<0.01%+85713F-HRTimelineGroup
Man Group plcin group Man Group plc27,321$523K<0.01%new13F-HRTimelineGroup
Bayforest Capital Ltd26,288$504K0.22%+17,43613F-HR/ATimeline
Ensign Peak Advisors, Inc25,532$489K<0.01%013F-HRTimeline
SHELL ASSET MANAGEMENT CO25,281$484K0.02%-1,00013F-HRTimeline
HighMark Wealth Management LLC25,170$482K0.28%013F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC25,001$479K0.01%-39713F-HRTimeline
&PARTNERS23,142$453K<0.01%+15,94613F-HRTimeline
Scientech Research LLC23,372$448K0.12%new13F-HRTimeline
Amundiin group Amundi25,184$445K<0.01%-44,68713F-HRTimelineGroup
OP Asset Management Ltd23,000$441K0.01%13F-HR/ATimeline
Aquatic Capital Management LLC22,648$434K0.01%+1,40213F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC22,509$431K<0.01%-1513F-HRTimelineGroup
Advisors Asset Management, Inc.22,460$430K0.01%+1,66413F-HR/ATimeline
1492 Capital Management LLC22,446$430K0.23%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC22,145$424K<0.01%+5,26413F-HRTimelineGroup
Handelsbanken Fonder AB22,000$422K<0.01%013F-HRTimeline
CAPTRUST FINANCIAL ADVISORS21,517$412K<0.01%+3,00413F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…21,449$411K<0.01%+3,50313F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…21,290$408K<0.01%013F-HRTimeline
Chicago Capital, LLC20,726$397K0.01%-949,88113F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…19,235$369K<0.01%-3,00413F-HRTimelineGroup
Maryland State Retirement & Pension Sys…19,137$367K0.01%-2,97013F-HRTimeline
Counterpoint Mutual Funds LLC18,963$363K0.05%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM18,813$360K<0.01%-14813F-HRTimeline
AMALGAMATED BANK18,776$360K<0.01%-44813F-HRTimeline
Cetera Investment Advisers18,700$358K<0.01%+4,51513F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…18,552$355K<0.01%013F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC17,893$343K0.04%new13F-HRTimelineGroup
Bridgefront Capital, LLC17,764$340K0.1%new13F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC17,294$331K<0.01%+6,91913F-HRTimelineGroup
SG Americas Securities, LLC16,353$313K<0.01%+12,84713F-HRTimeline
ExodusPoint Capital Management, LP15,986$306K<0.01%-238,07113F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…15,717$301K<0.01%+1,69613F-HRTimeline
ProShare Advisors LLC15,464$296K<0.01%-4,32513F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND14,971$287K0.01%-50013F-HRTimeline
DIVERSIFIED TRUST CO14,623$280K0.01%013F-HRTimeline
CIBC WORLD MARKETS CORP14,571$279K<0.01%+8,42613F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC14,144$270K<0.01%-13,63513F-HRTimelineGroup
Police & Firemen's Retirement System of…13,900$266K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS13,500$259K<0.01%013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC12,245$235K<0.01%-552,98813F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC12,069$230K<0.01%-1,83613F-HRTimelineGroup
IQ EQ FUND MANAGEMENT (IRELAND) Ltd11,851$227K0.03%013F-HRTimeline
Dynamic Technology Lab Private Ltd11,766$225K0.03%new13F-HRTimeline
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC11,708$224K<0.01%+2,79413F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.11,668$224K<0.01%+2,51013F-HRTimelineGroup
Atria Investments, Inc11,569$222K<0.01%+1,46813F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/11,390$218K<0.01%+1,38613F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP11,269$216K<0.01%+3,42513F-HRTimelineGroup
Apollon Wealth Management, LLCin group Apollon Wealth Management, LLC11,074$212K<0.01%-3,73813F-HRTimelineGroup
WOLVERINE TRADING, LLC10,973$212K0.01%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…10,779$207K0.01%-42,06213F-HRTimelineGroup
Allianz Asset Management GmbHin group Allianz SE10,700$205K<0.01%new13F-HRTimelineGroup
MML INVESTORS SERVICES, LLC10,718$205K<0.01%+2,44213F-HRTimeline
MN Wealth Advisors, LLC10,623$204K0.12%-7,33113F-HRTimeline
AXQ CAPITAL, LP10,098$193K0.08%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.9,134$175K<0.01%+3,40513F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC9,078$174K0.01%+3,27813F-HRTimeline
AlphaQuest LLC8,561$164K0.02%+7,63013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…7,650$147K<0.01%013F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP7,398$142K<0.01%+2,49713F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…6,870$132K<0.01%013F-HRTimelineGroup
Leonteq Securities AG6,848$131K0.01%+4,08213F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC6,651$127K<0.01%+46613F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD5,800$111K<0.01%-11,10013F-HRTimeline
State of Wyoming4,467$85.6K0.01%+1,47113F-HRTimeline
Farther Finance Advisors, LLC4,116$77.1K<0.01%+35013F-HRTimeline
Brooklyn Investment Group3,397$65.1K0.01%+2,74113F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,878$55.1K<0.01%-1,02413F-HRTimelineGroup