Home / Institutions / THORNBURG INVESTMENT MANAGEMENT INC
13F holdings

THORNBURG INVESTMENT MANAGEMENT INC portfolio

Managed by . 171 reported positions worth $9.6B as of 2026-03-31, filed with the SEC on 2026-05-12. Parsed from the filing itself, not a reseller.

$9.6B
Book value
171
Positions
59%
Top 10 weight
+24
New this quarter
-29
Exited
134 days
Age today
How old this actually is

Every position on this page is a snapshot of 2026-03-31. It was already 42 days old on 2026-05-12, the day it first became public. Today it is 134 days old.

That lag is the law, not a service level — Rule 13f-1 gives managers 45 days after quarter end to file, and no product can shorten it. A fund can have sold every share below before you read this sentence. Treat it as a record of what happened, never as a position you can follow.

What changed

Positions opened and closed

Against its 2025-12-31 filing. This is the part worth reading — the holdings table below is mostly years old.

New positions (24)
TickerIssuerValueShares% of book
TTETOTALENERGIES SE$1.1B11,660,98311.31%
AZNASTRAZENECA PLC$555.7M2,858,6515.77%
VBVANGUARD INDEX FDS$16.9M64,4800.18%
NFLXNETFLIX INC.$12.1M125,9850.13%
PNFPPINNACLE FINL PARTNERS INC$12.0M139,2040.12%
SPGIS&P GLOBAL INC$2.4M5,5470.02%
AAMIACADIAN ASSET MANAGEMENT INC$1.5M27,7860.02%
RPRXROYALTY PHARMA PLC$1.5M31,4090.02%
VSXYVICTORIAS SECRET AND CO$1.5M32,0320.02%
TMETENCENT MUSIC ENTMT GROUP$1.4M151,8340.01%
HEI/AHEICO CORP NEW$1.2M5,5120.01%
RDDTREDDIT INC$1.1M8,4310.01%
PGRPROGRESSIVE CORP$1.1M5,6700.01%
GWREGUIDEWIRE SOFTWARE INC$881,0585,8910.01%
TPRTAPESTRY INC$865,0046,1300.01%
VEEVVEEVA SYS INC$843,6954,8030.01%
WPMWHEATON PRECIOUS METALS CORP$637,7574,8680.01%
RBRKRUBRIK INC.$588,47312,0170.01%
TMUST-MOBILE US INC$575,2722,7390.01%
CDNSCADENCE DESIGN SYSTEM INC$571,8572,0580.01%
LITELUMENTUM HLDGS INC$560,1007970.01%
DDOGDATADOG INC$553,1824,6860.01%
KRMNKARMAN HLDGS INC$483,8226,0440.01%
XYZ 0 05/01/26BLOCK INC$322,694324,0000.00%
Closed out (29)
TickerIssuerWas worthShares% of book
AZNNASTRAZENECA PLC$46.5M505,9850.00%
FLUTFLUTTER ENTMT PLC$14.2M66,2160.00%
PINNACLE FINL PARTNERS IPINNACLE FINL PARTNERS INC$13.2M138,5940.00%
TTANSERVICETITAN INC$13.2M124,1590.00%
CVSAADTALEM GLOBAL ED INC$12.8M123,2390.00%
TCOMTRIP COM GROUP LTD$12.7M176,7580.00%
WDWALKER & DUNLOP INC$9.6M160,1030.00%
VRRMVERRA MOBILITY CORP$8.0M356,5910.00%
STKLSUNOPTA INC$7.9M2,074,4890.00%
CASYCASEYS GEN STORES INC$7.7M14,0200.00%
CXTCRANE NXT CO$6.7M142,9600.00%
NTNXNUTANIX INC$6.7M129,5970.00%
AVTRAVANTOR INC$6.6M576,9590.00%
MNDYMONDAY COM LTD$6.2M41,7140.00%
NTSKNETSKOPE INC$5.3M302,2880.00%
BROSDUTCH BROS INC$5.3M85,7920.00%
ENTGENTEGRIS INC$4.3M51,2670.00%
FRPTFRESHPET INC$3.9M64,6670.00%
FOURSHIFT4 PMTS INC$3.6M56,8790.00%
CHDNCHURCHILL DOWNS INC$3.2M28,3420.00%
INSPINSPIRE MED SYS INC$2.3M25,1970.00%
CCBCOASTAL FINL CORP WA$2.2M19,2520.00%
ASAMER SPORTS INC$1.5M40,2530.00%
ABNB 0 03/15/26AIRBNB INC$1.3M1,350,0000.00%
WCNWASTE CONNECTIONS INC$760,5364,3370.00%
Added to (48)
TickerIssuerValueShares% of bookShares Δ
TAT&T INC$900.0M31,045,2449.34%+7%
AVGOBROADCOM INC$644.9M2,083,6466.69%+1%
TRPTC ENERGY CORP$295.0M4,720,7223.06%+17%
TSMTAIWAN SEMICONDUCTOR MFG LTD$237.0M701,3522.46%+9%
CSCOCISCO SYS INC$226.1M2,914,3332.35%+2%
ENBENBRIDGE INC$197.2M3,641,0342.05%+1%
EQHEQUITABLE HLDGS INC$185.3M4,994,2051.92%+2%
MDTMEDTRONIC PLC$174.8M2,017,0771.81%+5%
RFREGIONS FINANCIAL CORP NEW$170.2M6,515,2721.77%+5%
FCXFREEPORT-MCMORAN INC$166.7M2,836,2341.73%+1%
SOBOSOUTH BOW CORP$120.7M3,632,8751.25%+28%
ABBVABBVIE INC$109.4M502,8321.14%+25%
BZKANZHUN LIMITED$83.5M6,232,8460.87%+2%
BABAALIBABA GROUP HLDG LTD$76.6M610,1840.79%+4%
SCHWSCHWAB CHARLES CORP$76.1M809,5600.79%+7%
Trimmed (64)
TickerIssuerValueShares% of bookShares Δ
ICLRICON PLC$665,0676,0100.01%-89%
BMRNBIOMARIN PHARMACEUTICAL INC$599,24610,6080.01%-88%
VEUVANGUARD INTL EQUITY INDEX F$269,9093,5940.00%-85%
STEPSTEPSTONE GROUP INC$774,25716,2250.01%-77%
MIRMIRION TECHNOLOGIES INC$959,18851,5970.01%-77%
GKOSGLAUKOS CORP$1.2M10,8860.01%-77%
ONONON HLDG AG$521,66315,3340.01%-77%
PODDINSULET CORP$681,7703,2490.01%-77%
AVAVAEROVIRONMENT INC$586,8583,2060.01%-77%
MAREX GROUP PLCMAREX GROUP PLC$18.2M408,8770.19%-63%
IOTSAMSARA INC$1.1M35,8730.01%-61%
BJBJS WHSL CLUB HLDGS INC$5.2M52,5790.05%-57%
CCCCCC INTELLIGENT SOLUTIONS HL$2.7M447,7440.03%-52%
TDGTRANSDIGM GROUP INC$34.4M29,6620.36%-38%
CLHCLEAN HARBORS INC$10.8M37,7620.11%-38%
The book

Largest 150 of 171 holdings

TickerIssuerValueShares% of bookShares Δ
TTETOTALENERGIES SE$1.1B11,660,98311.31%
CCITIGROUP INC$905.9M7,988,2109.40%
TAT&T INC$900.0M31,045,2449.34%
AVGOBROADCOM INC$644.9M2,083,6466.69%
AZNASTRAZENECA PLC$555.7M2,858,6515.77%
MRKMERCK & CO INC$448.5M3,728,6734.66%
CMECME GROUP INC$338.3M1,145,4423.51%
TRPTC ENERGY CORP$295.0M4,720,7223.06%
TSMTAIWAN SEMICONDUCTOR MFG LTD$237.0M701,3522.46%
CSCOCISCO SYS INC$226.1M2,914,3332.35%
ENBENBRIDGE INC$197.2M3,641,0342.05%
EQHEQUITABLE HLDGS INC$185.3M4,994,2051.92%
MDTMEDTRONIC PLC$174.8M2,017,0771.81%
HDHOME DEPOT INC$171.4M521,0091.78%
RFREGIONS FINANCIAL CORP NEW$170.2M6,515,2721.77%
FCXFREEPORT-MCMORAN INC$166.7M2,836,2341.73%
CPCANADIAN PACIFIC KANSAS CITY$159.6M2,028,7131.66%
LINLINDE PLC$135.4M274,3721.41%
ALCALCON AG$128.4M1,708,6771.33%
GOOGLALPHABET INC$122.2M424,9421.27%
SOBOSOUTH BOW CORP$120.7M3,632,8751.25%
FERROVIAL SEFERROVIAL SE$111.6M1,739,3411.16%
ABBVABBVIE INC$109.4M502,8321.14%
BZKANZHUN LIMITED$83.5M6,232,8460.87%
LYBLYONDELLBASELL INDUSTRIES NV$78.7M977,0810.82%
BABAALIBABA GROUP HLDG LTD$76.6M610,1840.79%
SCHWSCHWAB CHARLES CORP$76.1M809,5600.79%
METAMETA PLATFORMS INC$72.2M126,2160.75%
CIMCHIMERA INVT CORP$68.7M5,476,3020.71%
SLRCSLR INVESTMENT CORP$66.3M4,633,4310.69%
PFEPFIZER INC$63.0M2,242,1860.65%
LLYELI LILLY & CO$55.3M60,1780.57%
MELIMERCADOLIBRE INC$53.6M31,0220.56%
MAMASTERCARD INCORPORATED$48.9M97,9130.51%
BKNGBOOKING HOLDINGS INC$47.2M11,2110.49%
CACICACI INTL INC$46.0M84,5680.48%
LHXL3HARRIS TECHNOLOGIES INC$43.7M126,6980.45%
ADBEADOBE INC$42.2M173,5150.44%
TJXTJX COS INC NEW$42.1M263,6630.44%
MFICMIDCAP FINANCIAL INVSTMNT CO$36.4M3,237,7830.38%
TDGTRANSDIGM GROUP INC$34.4M29,6620.36%
RACEFERRARI N V$32.5M96,0420.34%
SESEA LTD$30.6M369,8730.32%
VRTVERTIV HOLDINGS CO$28.8M115,0160.30%
SHOPSHOPIFY INC$27.7M233,6010.29%
ASMLASML HLDG NV$25.8M19,5130.27%
COFCAPITAL ONE FINL CORP$25.5M139,6700.26%
AMDADVANCED MICRO DEVICES INC$24.9M122,5680.26%
FTITECHNIPFMC PLC$23.0M333,1740.24%
ANETARISTA NETWORKS INC$20.7M168,3480.21%
MUFGMITSUBISHI UFJ FINANCIAL GRO$18.3M1,077,2310.19%
MAREX GROUP PLCMAREX GROUP PLC$18.2M408,8770.19%
ACWXISHARES TR$18.0M263,1690.19%
SNSHARKNINJA INC$18.0M169,8210.19%
COHRCOHERENT CORP$17.8M74,7710.18%
SAPSAP SE$17.4M101,5070.18%
INGING GROEP N.V.$17.4M666,2390.18%
CMCSA 2 10/15/29COMCAST HOLDINGS CORP$17.2M281,0100.18%
VBVANGUARD INDEX FDS$16.9M64,4800.18%
MTSIMACOM TECH SOLUTIONS HLDGS I$16.6M74,6130.17%
CWSTCASELLA WASTE SYS INC$16.1M203,1670.17%
DCODUCOMMUN INC DEL$15.9M130,4310.17%
AERAERCAP HOLDINGS NV$15.8M115,3480.16%
AITAPPLIED INDL TECHNOLOGIES IN$15.0M56,4140.16%
ITTITT INC$14.9M77,9580.15%
BLDRBUILDERS FIRSTSOURCE INC$14.7M179,1040.15%
SONYSONY GROUP CORP$13.9M669,1340.14%
BAPCREDICORP LTD$13.8M40,5840.14%
AGXARGAN INC$13.5M24,8480.14%
CIGICOLLIERS INTL GROUP INC$13.2M123,8340.14%
TLNTALEN ENERGY CORP$13.0M40,6110.13%
EFAISHARES TR$12.5M128,2490.13%
NFLXNETFLIX INC.$12.1M125,9850.13%
NUNU HLDGS LTD$12.1M840,2030.13%
XPOXPO INC$12.1M62,0180.13%
PNFPPINNACLE FINL PARTNERS INC$12.0M139,2040.12%
MAKEMYTRIP LIMITED MAURIMAKEMYTRIP LIMITED MAURITIUS$11.3M302,5350.12%
WALWESTERN ALLIANCE BANCORP$11.2M158,3570.12%
CLBTCELLEBRITE DI LTD$11.2M811,7480.12%
LPLALPL FINL HLDGS INC$11.1M37,0100.12%
XPXP INC$10.9M570,0570.11%
CLHCLEAN HARBORS INC$10.8M37,7620.11%
SHELSHELL PLC$10.6M113,8740.11%
MYRGMYR GROUP INC$10.5M37,3510.11%
TRUTRANSUNION$10.5M151,6050.11%
DTMDT MIDSTREAM INC$10.4M77,5470.11%
MSFTMICROSOFT CORP$10.2M27,5210.11%
THCTENET HEALTHCARE CORP$9.8M52,1340.10%
AIZASSURANT INC$9.7M44,3160.10%
AGYSAGILYSYS INC$9.0M126,4330.09%
SXTSENSIENT TECHNOLOGIES CORP$8.8M101,4250.09%
PEVERPURE INC$8.7M147,4340.09%
ACAARCOSA INC$8.5M79,7390.09%
MUMICRON TECHNOLOGY INC$8.3M24,6210.09%
PJTPJT PARTNERS INC$7.8M56,0230.08%
WHWYNDHAM HOTELS & RESORTS INC$7.8M96,0560.08%
SITMSITIME CORP$7.3M21,2070.08%
GPIGROUP 1 AUTOMOTIVE INC$7.2M21,8530.07%
PBRPETROLEO BRASILEIRO S A$7.2M345,6930.07%
MTDRMATADOR RES CO$7.2M113,1750.07%
INSMINSMED INC$6.3M38,3370.07%
TBBBBBB FOODS INC$6.0M169,6760.06%
CYTKCYTOKINETICS INC$5.5M83,1900.06%
BJBJS WHSL CLUB HLDGS INC$5.2M52,5790.05%
DECKDECKERS OUTDOOR CORP$5.1M50,8890.05%
CSTMCONSTELLIUM SE$5.1M205,4670.05%
FROGJFROG LTD$5.0M107,4190.05%
IBNICICI BANK LIMITED$5.0M193,5000.05%
RMBSRAMBUS INC DEL$5.0M58,1060.05%
AMZNAMAZON COM INC$4.9M23,6770.05%
AORTARTIVION INC$4.8M130,2760.05%
CRDOCREDO TECHNOLOGY GROUP HOLDI$4.7M49,5840.05%
SAROSTANDARDAERO INC$4.3M167,3590.04%
GLOBGLOBANT S A$4.3M92,2770.04%
OTEXOPEN TEXT CORP$3.8M170,7330.04%
TWTRADEWEB MKTS INC$3.8M32,0660.04%
SAIASAIA INC$3.6M10,1800.04%
RGENREPLIGEN CORP$3.5M29,4010.04%
DEODIAGEO PLC$3.3M44,4420.03%
CELHCELSIUS HLDGS INC$3.1M88,1330.03%
NOWSERVICENOW INC$3.1M29,8350.03%
FWONKLIBERTY MEDIA CORP DEL$3.1M36,3010.03%
CCCCCC INTELLIGENT SOLUTIONS HL$2.7M447,7440.03%
SPGIS&P GLOBAL INC$2.4M5,5470.02%
BMYBRISTOL-MYERS SQUIBB CO$2.3M38,4000.02%
STLASTELLANTIS N.V$2.0M278,2100.02%
NVDANVIDIA CORPORATION$1.8M10,1050.02%
LBRTLIBERTY ENERGY INC$1.7M60,3520.02%
SLBSLB LIMITED$1.7M33,1540.02%
AAMIACADIAN ASSET MANAGEMENT INC$1.5M27,7860.02%
RPRXROYALTY PHARMA PLC$1.5M31,4090.02%
VSXYVICTORIAS SECRET AND CO$1.5M32,0320.02%
TMETENCENT MUSIC ENTMT GROUP$1.4M151,8340.01%
VVISA INC$1.3M4,1660.01%
GKOSGLAUKOS CORP$1.2M10,8860.01%
HEI/AHEICO CORP NEW$1.2M5,5120.01%
IOTSAMSARA INC$1.1M35,8730.01%
RDDTREDDIT INC$1.1M8,4310.01%
PGRPROGRESSIVE CORP$1.1M5,6700.01%
TSTENARIS S A$976,95916,7920.01%
MIRMIRION TECHNOLOGIES INC$959,18851,5970.01%
GWREGUIDEWIRE SOFTWARE INC$881,0585,8910.01%
TPRTAPESTRY INC$865,0046,1300.01%
VEEVVEEVA SYS INC$843,6954,8030.01%
STEPSTEPSTONE GROUP INC$774,25716,2250.01%
ZTSZOETIS INC$687,5095,8160.01%
PODDINSULET CORP$681,7703,2490.01%
ICLRICON PLC$665,0676,0100.01%
WPMWHEATON PRECIOUS METALS CORP$637,7574,8680.01%
NVSNOVARTIS AG$628,4144,1140.01%

This table is the 150 largest positions by value, out of 171 reported. The search box only searches what is on this page — a name absent from it may still be in the filing further down the book. The full info table is here.

Rows are aggregated by CUSIP — a manager files the same security multiple times when different internal desks hold it. Tickers link to our own backtest of that asset where we cover it.

Read the original

This page was built from one document: the 2026-03-31 Form 13F info table filed by THORNBURG INVESTMENT MANAGEMENT INC (CIK 1145020, accession 0001140361-26-020785). Every other 13F site is reading the same file.

If anything here disagrees with it, the filing wins — and we would want to know. All 13F filings by this manager

What a 13F cannot show you

A 13F is a long-only equity snapshot, and the holes in it are structural. Anyone selling you this data as "what the smart money is doing" is selling you one leg of a position:

  • No short positions. None, ever. A fund shown here as bullish may be net short the same name through a book you cannot see.
  • No cash, bonds, FX, commodities or non-US listings. A macro fund's entire thesis can be invisible.
  • No intra-quarter round trips. Bought and sold inside the same quarter means it never appears at all.
  • Options are notional, not ownership. We keep puts and calls in a separate bucket rather than adding their notional into a fund's book size, which is how a $2B fund gets reported as a $20B one.
  • Confidential treatment. Managers can ask the SEC to withhold a position while they build it. Those holdings are legally absent from the filing, so a "new" position may be months old.

Tested and published by IndicatorEdge · backtest grid generated 2026-06-25 · base rates recomputed 2026-07-31 · how we test

Free · no spam

Get the weekly edge report

The best-performing indicator per asset, what changed this week, and the honest caveats — straight to your inbox.