Asset manager

Loomis Sayles & Co L P

13F for the quarter to June 30, 2026, filed August 14, 2026 · SEC CIK 312348

Reported value: $79.8bn
Positions we cover: 596
Copy, a year: +15.7%
Copy Sharpe ratio: 0.79

How copying its 13F would have done

CopyS&P 500 $10,000 copying Loomis Sayles & Co L P's filed holdings in companies we cover from August 16, 2013, buying on the first trading day after each 13F was filed and holding until the next, against the S&P 500 (total return). Marked weekly, log scale. Before costs and taxes; misses trading within each quarter and anything 13F does not show (shorts, cash, bonds, non-US holdings).

Biggest drop −30.8% (S&P 500 −31.8%); beta 1.08; alpha +0.8% a year (t = 0.50); last 12 months +0.2% against +12.1%.

Reported value by quarter

Loomis Sayles & Co L P: 13F reported value Total value of all positions in each quarter's 13F, as filed (values before 2023 were filed in thousands of dollars and are converted).

View chart data

Period	Reported value
2013-06-30	$27.7B
2013-09-30	$30.6B
2013-12-31	$33.3B
2014-03-31	$35.3B
2014-06-30	$35B
2014-09-30	$34.1B
2014-12-31	$36.1B
2015-03-31	$35.8B
2015-06-30	$36.4B
2015-09-30	$33.8B
2015-12-31	$35.5B
2016-03-31	$35.2B
2016-06-30	$36.8B
2016-09-30	$39.5B
2016-12-31	$40.7B
2017-03-31	$40.1B
2017-06-30	$42.4B
2017-09-30	$45.6B
2017-12-31	$47.9B
2018-03-31	$47.1B
2018-06-30	$49.5B
2018-09-30	$51B
2018-12-31	$42.4B
2019-03-31	$50.9B
2019-06-30	$53.6B
2019-09-30	$52B
2019-12-31	$58.8B
2020-03-31	$48.5B
2020-06-30	$62.3B
2020-09-30	$68.7B
2020-12-31	$75.7B
2021-03-31	$77.2B
2021-06-30	$82.5B
2021-09-30	$81.3B
2021-12-31	$82.7B
2022-03-31	$74.8B
2022-06-30	$53.9B
2022-09-30	$49.4B
2022-12-31	$49.9B
2023-03-31	$57.6M
2023-06-30	$62M
2023-09-30	$58.2M
2023-12-31	$65.3M
2024-03-31	$70.3M
2024-06-30	$72.6M
2024-09-30	$76.2M
2024-12-31	$79.2M
2025-03-31	$69.2M
2025-06-30	$79.8B
2025-09-30	$84.1B
2025-12-31	$83B
2026-03-31	$74.3B
2026-06-30	$79.8B

Holdings and moves

Company	Share of portfolio	Value	Shares	Change in shares
NVDANVIDIA Corporation	9.91%	$7.9bn	39.50M	−3.6% Reduced
GOOGLAlphabet Inc. (Class A)	7.71%	$6.2bn	17.22M	−0.7% Reduced
TSLATesla, Inc.	6.68%	$5.3bn	12.68M	+0.2%
AMZNAmazon	5.46%	$4.4bn	18.29M	−0.2%
METAMeta Platforms	5.30%	$4.2bn	7.50M	+0.7% Added
VVisa Inc.	3.92%	$3.1bn	9.11M	−1.5% Reduced
BABoeing	3.77%	$3.0bn	13.92M	−1.0% Reduced
MSFTMicrosoft Corporation	3.64%	$2.9bn	7.78M	+28.3% Added
NFLXNetflix	3.58%	$2.9bn	40.02M	+5.4% Added
ORCLOracle Corporation	3.07%	$2.4bn	16.70M	−0.8% Reduced
MNSTMonster Beverage	2.99%	$2.4bn	24.85M	−4.1% Reduced
VRTXVertex Pharmaceuticals	2.44%	$1.9bn	3.92M	−2.1% Reduced
SHOPShopify Inc.	2.06%	$1.6bn	14.41M	0.0%
DISThe Walt Disney Company	1.64%	$1.3bn	13.57M	−3.0% Reduced
ADSKAutodesk, Inc.	1.54%	$1.2bn	6.34M	+10.4% Added
REGNRegeneron Pharmaceuticals	1.45%	$1.2bn	1.86M	−2.8% Reduced
CRMSalesforce	1.27%	$1.0bn	6.45M	+6.5% Added
SBUXStarbucks	1.17%	$933.2m	9.13M	−2.6% Reduced
EXPDExpeditors International	1.12%	$895.9m	5.50M	−2.1% Reduced
NVONovo Nordisk A S	1.12%	$891.4m	18.59M	+9.3% Added
DEDeere & Company	1.09%	$867.4m	1.37M	−0.5% Reduced
SEICSEI Investments Co	0.93%	$744.0m	8.48M	−1.7% Reduced
TMOThermo Fisher Scientific	0.83%	$659.4m	1.32M	−3.6% Reduced
ISRGIntuitive Surgical	0.82%	$658.6m	1.66M	−2.6% Reduced
BKNGBooking Holdings	0.76%	$608.5m	3.41M	+2678.4% Added
YUMYum! Brands	0.74%	$587.2m	3.67M	−1.8% Reduced
XYZBlock, Inc.	0.70%	$557.9m	7.34M	−1.1% Reduced
MAMastercard	0.47%	$372.9m	726.1K	+18.0% Added
ILMNIllumina, Inc.	0.43%	$339.7m	1.93M	−34.4% Reduced
SPGIS&P Global	0.41%	$331.4m	813.7K	+20.6% Added
FDSFactset Research Systems Inc	0.41%	$331.1m	1.44M	−2.6% Reduced
AVGOBroadcom	0.41%	$329.0m	871.1K	+1283.8% Added
NKENike, Inc.	0.40%	$320.5m	7.81M	−1.5% Reduced
TTTrane Technologies	0.36%	$290.6m	591.7K	+16.6% Added
WDAYWorkday, Inc.	0.35%	$281.0m	2.30M	+10.4% Added
ARMARM Holdings PLC	0.35%	$278.4m	785.2K	−8.7% Reduced
CMICummins	0.32%	$253.9m	355.9K	+6.1% Added
TSMTaiwan Semiconductor Manufacturing Co LTD	0.29%	$232.2m	486.3K	−25.7% Reduced
KLACKLA Corporation	0.29%	$232.1m	769.3K	+516.5% Added
MELIMercadolibre Inc	0.27%	$211.1m	124.4K	+36.3% Added
PHParker Hannifin	0.26%	$204.1m	208.6K	−14.5% Reduced
HLTHilton Worldwide	0.25%	$200.8m	607.6K	−16.3% Reduced
GSGoldman Sachs	0.24%	$193.6m	191.5K	−10.2% Reduced
BLKBlackRock	0.24%	$190.8m	198.5K	−5.3% Reduced
JPMJPMorgan Chase	0.24%	$190.8m	582.8K	−9.0% Reduced
ORLYO'Reilly Automotive	0.23%	$187.5m	2.04M	−3.4% Reduced
ALNYAlnylam Pharmaceuticals, Inc.	0.22%	$174.7m	580.2K	+13.3% Added
COSTCostco	0.21%	$166.9m	178.4K	−7.4% Reduced
PGRProgressive Corporation	0.20%	$161.2m	737.7K	−3.0% Reduced
ABNBAirbnb	0.16%	$131.0m	915.3K	−18.6% Reduced
HDThe Home Depot	0.15%	$119.9m	339.9K	−25.9% Reduced
AEISAdvanced Energy Industries Inc	0.15%	$118.8m	318.6K	−5.3% Reduced
LINLinde plc	0.14%	$115.7m	223.0K	−27.8% Reduced
ATIATI Inc	0.14%	$114.6m	581.3K	−11.0% Reduced
ALGMAllegro Microsystems, Inc.	0.14%	$112.8m	1.62M	−3.2% Reduced
LTHLife Time Group Holdings, Inc.	0.13%	$100.0m	2.45M	−5.2% Reduced
ROPRoper Technologies	0.13%	$99.7m	294.6K	−31.8% Reduced
DHRDanaher Corporation	0.12%	$98.5m	516.9K	−7.2% Reduced
MTDMettler Toledo	0.12%	$95.2m	74.5K	−30.6% Reduced
LGNDLigand Pharmaceuticals Inc	0.12%	$92.2m	291.8K	−17.4% Reduced
UNHUnitedHealth Group	0.11%	$90.7m	218.2K	+31.0% Added
ESEEsco Technologies Inc	0.11%	$89.9m	256.8K	−14.6% Reduced
TWSTTwist Bioscience Corp	0.11%	$88.6m	861.3K	+75.0% Added
ABEVAmbev S.a.	0.11%	$84.8m	27.00M	+31.8% Added
MRCYMercury Systems Inc	0.10%	$83.3m	681.1K	+5.5% Added
AIRAAR Corp	0.10%	$83.3m	582.6K	−8.8% Reduced
ALKSAlkermes plc.	0.10%	$83.1m	1.59M	−11.2% Reduced
EXTRExtreme Networks Inc	0.10%	$82.1m	2.54M	−6.6% Reduced
HXLHexcel Corp	0.10%	$82.1m	820.2K	+1.8% Added
HQYHealthequity, Inc.	0.10%	$82.1m	908.6K	−2.5% Reduced
MTSIMacom Technology Solutions Holdings, Inc.	0.10%	$78.6m	206.6K	−35.9% Reduced
SNXTD Synnex Corp	0.09%	$70.5m	263.8K	−6.4% Reduced
MYRGMYR Group Inc.	0.09%	$70.4m	140.6K	−17.3% Reduced
YUMCYum China Holdings, Inc.	0.09%	$70.0m	1.71M	−60.1% Reduced
SUPNSupernus Pharmaceuticals, Inc.	0.09%	$68.6m	1.48M	+3.5% Added
APPApplovin Corp	0.08%	$67.3m	130.5K	+5031.1% Added
ITTITT Inc.	0.08%	$66.8m	338.0K	−2.8% Reduced
ECGEverus Construction Group, Inc.	0.08%	$66.7m	401.9K	−6.7% Reduced
STRLSterling Infrastructure, Inc.	0.08%	$66.6m	79.4K	−50.9% Reduced
COCOVita Coco Company, Inc.	0.08%	$66.2m	1.00M	−6.7% Reduced
GKOSGlaukos Corp	0.08%	$65.6m	469.4K	+11.4% Added
OIIOceaneering International Inc	0.08%	$65.1m	1.61M	−5.5% Reduced
YETIYeti Holdings, Inc.	0.08%	$64.4m	1.30M	−1.3% Reduced
TCOMTrip.com Group Ltd	0.08%	$63.2m	1.59M	+62.5% Added
RMBSRambus Inc	0.08%	$62.5m	470.9K	−28.6% Reduced
LGNLegence Corp.	0.08%	$62.4m	732.2K	−18.7% Reduced
BOOTBoot Barn Holdings, Inc.	0.08%	$60.8m	370.4K	−3.5% Reduced
ROADConstruction Partners, Inc.	0.07%	$60.1m	505.7K	−6.7% Reduced
NXPINXP Semiconductors	0.07%	$59.1m	210.2K	+17.7% Added
AXSMAxsome Therapeutics, Inc.	0.07%	$58.6m	239.5K	−6.7% Reduced
DCODucommun Inc	0.07%	$57.3m	309.5K	+22.5% Added
CWSTCasella Waste Systems Inc	0.07%	$55.6m	573.9K	−5.7% Reduced
TXRHTexas Roadhouse, Inc.	0.07%	$54.3m	280.9K	−4.7% Reduced
SIMOSilicon Motion Technology Corp	0.07%	$53.8m	161.4K	−14.4% Reduced
TYLTyler Technologies Inc	0.07%	$53.6m	183.4K	−3.4% Reduced
VCELVericel Corp	0.07%	$53.4m	1.20M	+23.0% Added
MGYMagnolia Oil & Gas Corp	0.07%	$52.8m	2.07M	−5.3% Reduced
MIRMMirum Pharmaceuticals, Inc.	0.07%	$51.9m	443.6K	−6.7% Reduced
ALHCAlignment Healthcare, Inc.	0.06%	$51.2m	2.15M	+2.0% Added
OSWOnespaworld Holdings Ltd	0.06%	$51.0m	1.81M	−6.7% Reduced
CRLCharles River Laboratories	0.06%	$50.7m	223.7K	+30.8% Added
SMTCSemtech Corp	0.06%	$50.6m	312.5K	New
PTRNPattern Group Inc.	0.06%	$49.8m	1.98M	+0.4%
ONTOOnto Innovation Inc.	0.06%	$49.7m	131.4K	+62.1% Added
GTXGarrett Motion Inc.	0.06%	$49.5m	1.37M	−6.5% Reduced
VSECVSE Corp	0.06%	$49.5m	216.6K	−10.6% Reduced
FBKFB Financial Corp	0.06%	$48.2m	871.1K	−4.5% Reduced
RYTMRhythm Pharmaceuticals, Inc.	0.06%	$48.2m	434.1K	−6.7% Reduced
PTCTPTC Therapeutics, Inc.	0.06%	$48.2m	590.4K	+19.6% Added
CXTCrane NXT, Co.	0.06%	$48.0m	937.3K	+37.4% Added
JAZZJazz Pharmaceuticals plc	0.06%	$47.8m	198.2K	−3.8% Reduced
ADEAAdeia Inc.	0.06%	$46.5m	1.41M	+5.7% Added
MGRCMcgrath Rentcorp	0.06%	$45.7m	377.3K	−4.9% Reduced
PDFSPDF Solutions Inc	0.06%	$45.5m	643.3K	−22.2% Reduced
SFStifel Financial Corp	0.06%	$45.5m	651.9K	−3.2% Reduced
DOCSDoximity, Inc.	0.06%	$45.3m	2.19M	+7.3% Added
MIRMirion Technologies, Inc.	0.06%	$45.3m	2.53M	−5.4% Reduced
AGMFederal Agricultural Mortgage Corp	0.06%	$44.9m	225.4K	+3.2% Added
BIDUBaidu, Inc.	0.06%	$44.7m	391.3K	+36.8% Added
DORMDorman Products, Inc.	0.06%	$44.2m	323.9K	+33.9% Added
QQnity Electronics, Inc.	0.06%	$44.0m	269.2K	+27.4% Added
FTREFortrea Holdings Inc.	0.05%	$42.5m	2.44M	+33.9% Added
RACEFerrari N.V.	0.05%	$42.4m	113.8K	+69.0% Added
RDNTRadnet, Inc.	0.05%	$42.0m	681.0K	−0.8% Reduced
MKSIMKS Inc	0.05%	$41.7m	93.8K	−26.2% Reduced
TTMITTM Technologies Inc	0.05%	$41.7m	222.9K	−58.4% Reduced
PJTPJT Partners Inc.	0.05%	$41.6m	275.9K	−6.7% Reduced
IRTCIrhythm Holdings, Inc.	0.05%	$41.4m	348.0K	−5.4% Reduced
BMRNBiomarin Pharmaceutical Inc	0.05%	$40.8m	713.7K	0.0%
VEEVVeeva Systems Inc	0.05%	$40.8m	229.8K	−10.0% Reduced
ENVAEnova International, Inc.	0.05%	$40.4m	167.9K	−2.6% Reduced
WHDCactus, Inc.	0.05%	$40.3m	787.5K	−6.7% Reduced
SSBSouthstate Bank Corp	0.05%	$40.2m	402.7K	−3.2% Reduced
VIAVViavi Solutions Inc.	0.05%	$40.0m	837.3K	−28.9% Reduced
CIGIColliers International Group Inc.	0.05%	$39.9m	425.3K	−15.5% Reduced
RGAReinsurance Group Of America Inc	0.05%	$39.2m	184.2K	+7.4% Added
GNRCGenerac	0.05%	$38.6m	131.8K	−2.4% Reduced
PBProsperity Bancshares Inc	0.05%	$38.4m	525.9K	−2.8% Reduced
AITApplied Industrial Technologies Inc	0.05%	$38.2m	113.1K	−6.8% Reduced
PATKPatrick Industries Inc	0.05%	$37.7m	420.3K	−6.7% Reduced
NTRANatera, Inc.	0.05%	$37.6m	138.4K	−2.6% Reduced
MODModine Manufacturing Co	0.05%	$37.5m	140.6K	−6.7% Reduced
WTWisdomtree, Inc.	0.05%	$37.1m	2.19M	+31.7% Added
NEONeogenomics Inc	0.05%	$37.0m	2.54M	+30.4% Added
HOMBHome Bancshares Inc	0.05%	$36.4m	1.28M	−3.4% Reduced
GRDNGuardian Pharmacy Services, Inc.	0.05%	$36.4m	869.8K	−6.6% Reduced
PIPRPiper Sandler Companies	0.04%	$36.2m	500.6K	−6.7% Reduced
RYANRyan Specialty Holdings, Inc.	0.04%	$36.2m	958.3K	New
BWXTBWX Technologies, Inc.	0.04%	$35.9m	184.5K	−2.5% Reduced
SOLSSolstice Advanced Materials Inc.	0.04%	$35.7m	402.8K	−13.8% Reduced

Company	Bought (value)	Shares
MSFTMicrosoft Corporation	$640.2m	1.72M
BKNGBooking Holdings	$586.6m	3.29M
AVGOBroadcom	$305.3m	808.1K
KLACKLA Corporation	$194.5m	644.5K
NFLXNetflix	$145.9m	2.04M
ADSKAutodesk, Inc.	$115.7m	595.2K
NVONovo Nordisk A S	$75.6m	1.58M
APPApplovin Corp	$65.9m	128.0K
CRMSalesforce	$62.0m	395.7K
MAMastercard	$56.9m	110.8K
SPGIS&P Global	$56.7m	139.3K
MELIMercadolibre Inc	$56.3m	33.2K
SMTCSemtech Corp	$50.6m	312.5K
TTTrane Technologies	$41.4m	84.2K
TWSTTwist Bioscience Corp	$38.0m	369.0K

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

Company	Sold (value)	Shares
QCOMQualcomm	−$742.1m	−4.02M
NVDANVIDIA Corporation	−$295.2m	−1.48M
PYPLPayPal	−$262.3m	−6.08M
ILMNIllumina, Inc.	−$177.8m	−1.01M
YUMCYum China Holdings, Inc.	−$105.5m	−2.58M
MNSTMonster Beverage	−$101.5m	−1.06M
EXPEExpedia Group	−$81.9m	−320.1K
TSMTaiwan Semiconductor Manufacturing Co LTD	−$80.1m	−167.8K
STRLSterling Infrastructure, Inc.	−$69.1m	−82.3K
TTMITTM Technologies Inc	−$58.6m	−313.1K
BABAAlibaba Group Holding Ltd	−$51.2m	−533.1K
VVisa Inc.	−$49.1m	−143.1K
SLABSilicon Laboratories Inc.	−$46.5m	−223.3K
ROPRoper Technologies	−$46.4m	−137.2K
WDCWestern Digital	−$46.4m	−72.6K

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

Company	Value last quarter	Shares
SLABSilicon Laboratories Inc.	$46.5m	223.3K
CRSPCrispr Therapeutics AG	$46.1m	968.1K
AORTArtivion, Inc.	$35.9m	980.4K
INSMInsmed Inc	$31.9m	195.0K
EVTCEvertec, Inc.	$28.9m	1.02M
SITESiteone Landscape Supply, Inc.	$28.4m	213.1K
KTOSKratos Defense & Security Solutions, Inc.	$27.0m	382.5K
ITRIItron, Inc.	$25.8m	287.9K
IBPInstalled Building Products, Inc.	$25.5m	96.2K
CARGCargurus, Inc.	$24.8m	729.0K
CDRECadre Holdings, Inc.	$18.9m	615.5K
VRDNViridian Therapeutics, Inc.\de	$18.1m	927.7K
PLNTPlanet Fitness, Inc.	$16.5m	221.3K
BJBj's Wholesale Club Holdings, Inc.	$16.3m	165.1K
ESABESAB Corp	$15.5m	160.2K
EYENational Vision Holdings, Inc.	$15.1m	584.0K
OLLIOllie's Bargain Outlet Holdings, Inc.	$12.2m	132.4K
STAGStag Industrial, Inc.	$11.7m	325.0K
NCNONcino, Inc.	$7.2m	477.5K
OPTUOptimum Communications, Inc.	$6.6m	5.08M
HAFCHanmi Financial Corp	$4.9m	184.6K
FWRGFirst Watch Restaurant Group, Inc.	$3.3m	311.7K
WOLFWolfspeed, Inc.	$2.6m	156.6K
VIRTVirtu Financial, Inc.	$2.5m	57.3K
INGRIngredion Inc	$2.0m	17.8K
NOWServiceNow	$1.8m	17.5K
ARGXArgenx SE	$1.1m	1.6K
RYAAYRyanair Holdings PLC	$1.0m	17.9K
STVNStevanato Group S.p.a.	$796,180	57.9K
FOURShift4 Payments, Inc.	$673,687	15.4K

Technology27.2%
Communication Services19.3%
Consumer Discretionary18.3%
Health Care10.6%
Industrials10.1%
Financials9.6%
Consumer Staples3.7%
Energy0.5%
Materials0.4%
Utilities0.2%
Real Estate0.1%

Share of the value held in companies we cover, by sector.

Period	Copy, a year	S&P 500	Sharpe	S&P 500	Biggest drop	Beta
Whole backtestAugust 16, 2013 to November 2, 2026	+15.7%	+14.1%	0.79	0.78	−30.8%	1.08
2018 onwardsJanuary 5, 2018 to November 2, 2026	+14.7%	+13.9%	0.64	0.66	−30.8%	1.07
Last three yearsNovember 3, 2023 to November 2, 2026	+19.2%	+21.8%	0.81	1.16	−21.5%	1.23
Last yearNovember 7, 2025 to November 2, 2026	+3.2%	+14.2%	0.04	0.84	−14.9%	1.24

From SEC Form 13F data sets. A 13F lists long positions in US-listed shares at the quarter's end, filed up to 45 days later; it does not show shorts, cash, bonds, non-US holdings or trades within the quarter. Positions in companies outside our coverage are not listed here. Research, not investment advice.