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13F holdings

CONGRESS ASSET MANAGEMENT CO portfolio

Managed by . 417 reported positions worth $14.0B as of 2026-03-31, filed with the SEC on 2026-04-14. Parsed from the filing itself, not a reseller.

$14.0B
Book value
417
Positions
19%
Top 10 weight
+60
New this quarter
-24
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 14 days old on 2026-04-14, 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 (60)
TickerIssuerValueShares% of book
HLTHilton Worldwide Holdings Inc$107.2M352,6360.77%
LIVNLivaNova PLC$81.0M1,274,8200.58%
IMAXIMAX Corporation$57.4M1,510,3750.41%
FROGJFrog Ltd$47.5M1,012,8580.34%
QQnity Electronics Inc.$39.3M340,7050.28%
CRSCarpenter Technology Corporation$32.7M82,9380.23%
EXPEExpedia Group Inc$29.1M125,9290.21%
RBRKRubrik Inc.$26.7M545,7250.19%
MIRMirion Technologies Inc$20.7M1,114,0610.15%
CELHCelsius Holdings Inc.$18.8M529,0760.13%
FLSFlowserve Corporation$8.8M119,9570.06%
WLTHWealthfront Corp.$7.9M853,7470.06%
RYNRayonier Inc$6.8M328,9260.05%
FSVFirstService Corp.$6.1M43,7430.04%
CWSTCasella Waste Systems, Inc.$5.2M64,9380.04%
AIRAAR Corp.$5.1M46,6920.04%
LGNLegence Corp.$4.8M85,7940.03%
AORTArtivion Inc$4.7M127,1030.03%
ACADAcadia Pharmaceuticals Inc$3.6M160,7940.03%
CDNLCardinal Infrastructure Group Inc.$3.5M87,3720.02%
LRNStride Inc$3.2M36,1380.02%
STEPStepStone Group Inc$3.0M62,9090.02%
TPCTutor Perini Corporation$2.9M37,7510.02%
PLNTPlanet Fitness Inc.$2.9M38,6380.02%
SMTCSemtech Corporation$2.8M36,9780.02%
Closed out (24)
TickerIssuerWas worthShares% of book
CYBRCyberark Software Ltd.$59.7M133,8510.00%
BROBrown & Brown Inc$46.3M580,6100.00%
PINSPinterest Inc$33.9M1,308,3930.00%
CWANClearwater Analytics Holdings Inc$20.2M839,4990.00%
DUOLDuolingo Inc$10.8M61,7110.00%
TRMBTrimble Inc$10.7M136,4270.00%
HQYHealthequity Inc$9.3M101,8160.00%
WDAYWorkday Inc$8.7M40,6580.00%
PCHPotlatchdeltic Corp.$6.3M157,7000.00%
DVAXDynavax Technologies Corp.$3.6M233,0090.00%
ROKRockwell Automation, Inc.$903,4212,3220.00%
BAHBooz Allen Hamilton Holding Corp.$788,3219,3450.00%
MTDMettler-Toledo International Inc$302,5392170.00%
QLYSQualys Inc$283,2102,1310.00%
HPQHP Inc$269,69912,1050.00%
CRMSalesforce Inc.$248,3769380.00%
SSDSimpson Manufacturing Co Inc.$248,3411,5380.00%
COINCoinbase Global Inc$241,9701,0700.00%
WSMWilliams-Sonoma Inc.$229,1501,2830.00%
WTSWatts Water Technologies Inc.$225,2878160.00%
DHRDanaher Corporation$224,3429800.00%
AAgilent Technologies Inc.$223,5631,6430.00%
XLYSelect Sector Spdr Trust STATE STR$212,0721,7760.00%
VRSKVerisk Analytics, Inc.$206,9139250.00%
Added to (173)
TickerIssuerValueShares% of bookShares Δ
AVGOBroadcom Inc$234.5M757,7311.68%+4%
STRLSterling Infrastructure Inc$202.5M497,0981.45%+6%
GEVGE Vernova Inc.$173.6M198,8251.24%+4%
TKOTKO Group Holdings Inc.$146.8M727,8061.05%+33%
MODModine Manufacturing Co.$141.0M650,6731.01%+14%
MOG/AMoog Inc.$117.8M402,5620.84%+10%
IDCCInterDigital, Inc.$116.6M386,0130.84%+10%
ASMLASML Holding N.V.$109.1M82,6260.78%+539%
NOVTNovanta Inc$107.4M909,7100.77%+49%
BOOTBoot Barn Holdings Inc$105.0M717,5740.75%+15%
UFPTUFP Technologies Inc.$101.3M523,4380.73%+19%
LGNDLigand Pharmaceuticals Incorporate$100.8M504,6370.72%+5%
NPOEnpro Inc$99.9M398,4310.72%+6%
LLYEli Lilly & Co.$95.8M104,1020.69%+653%
ALNYAlnylam Pharmaceuticals Inc.$94.5M285,7390.68%+6%
Trimmed (131)
TickerIssuerValueShares% of bookShares Δ
BOXBox Inc.$303,08812,8210.00%-99%
PANWPalo Alto Networks Inc$891,4845,5610.01%-99%
SFMSprouts Farmers Markets Inc$501,1916,4980.00%-97%
ORCLOracle Corp.$954,2526,4870.01%-93%
IVViShares Trust CORE S&P500 ETF$800,8351,2260.01%-92%
SNPSSynopsys Inc$8.0M20,2790.06%-92%
KNFKnife River Corp.$6.9M84,1700.05%-88%
IWOiShares Trust RUS 2000 GRW ETF$2.9M9,1910.02%-88%
DELLDell Technologies Inc$24.0M146,0710.17%-87%
NFLXNetflix, Inc.$22.6M235,2500.16%-83%
TILEInterface, Inc.$13.6M546,7090.10%-79%
GRMNGarmin Ltd$13.1M56,5280.09%-77%
PEverpure Inc.$12.9M218,5330.09%-76%
HLHecla Mining Company$3.9M206,8920.03%-72%
IJKiShares Trust S&P MC 400GR ETF$2.0M19,6430.01%-70%
The book

Largest 150 of 417 holdings

TickerIssuerValueShares% of bookShares Δ
NVDANVIDIA Corp.$437.7M2,510,0283.14%
AAPLApple Inc.$414.1M1,631,4852.97%
GOOGLAlphabet Inc.$303.2M1,054,5542.17%
MSFTMicrosoft Corp.$236.2M638,1071.69%
AVGOBroadcom Inc$234.5M757,7311.68%
COSTCostco Wholesale Corporation$215.3M216,0241.54%
ANETArista Networks Inc$212.8M1,732,8541.52%
STRLSterling Infrastructure Inc$202.5M497,0981.45%
TJXThe TJX Companies Inc.$192.3M1,203,9881.38%
AMZNAmazon.com, Inc.$188.1M903,1201.35%
HWMHowmet Aerospace Inc$183.5M796,4041.32%
ETNEaton Corporation PLC$180.2M503,7281.29%
METAMeta Platforms Inc$173.9M303,9141.25%
GEVGE Vernova Inc.$173.6M198,8251.24%
VVisa Inc$169.9M562,0931.22%
GSGoldman Sachs Group, Inc.$160.2M189,4151.15%
CWCurtiss-Wright Corp.$155.2M227,8351.11%
WELLWelltower Inc.$148.3M750,2001.06%
TKOTKO Group Holdings Inc.$146.8M727,8061.05%
ISRGIntuitive Surgical Inc.$144.0M312,4101.03%
PHParker-Hannifin Corp.$142.5M159,1761.02%
MODModine Manufacturing Co.$141.0M650,6731.01%
ORLYO'Reilly Automotive Inc.$140.7M1,524,6571.01%
MLMMartin Marietta Materials Inc$140.1M237,9711.00%
NVTNVent Electric PLC$132.7M1,121,7910.95%
WMBWilliams Companies Inc. (The)$132.5M1,819,8710.95%
ECLEcolab Inc.$126.2M474,4380.90%
APHAmphenol Corporation$122.2M967,2920.88%
MOG/AMoog Inc.$117.8M402,5620.84%
PRIMPrimoris Services Corp.$117.0M818,0960.84%
IDCCInterDigital, Inc.$116.6M386,0130.84%
RMBSRambus Inc.$109.8M1,275,9780.79%
ASMLASML Holding N.V.$109.1M82,6260.78%
NOVTNovanta Inc$107.4M909,7100.77%
HLTHilton Worldwide Holdings Inc$107.2M352,6360.77%
BOOTBoot Barn Holdings Inc$105.0M717,5740.75%
PENPenumbra Inc.$104.2M317,3370.75%
NVMINova Ltd$104.1M239,7080.75%
BSXBoston Scientific Corporation$102.3M1,629,4850.73%
UFPTUFP Technologies Inc.$101.3M523,4380.73%
LGNDLigand Pharmaceuticals Incorporate$100.8M504,6370.72%
UBERUber Technologies Inc$100.5M1,396,5390.72%
NPOEnpro Inc$99.9M398,4310.72%
TMOThermo Fisher Scientific Inc$98.4M200,2880.71%
LLYEli Lilly & Co.$95.8M104,1020.69%
ALNYAlnylam Pharmaceuticals Inc.$94.5M285,7390.68%
RGENRepligen Corporation$94.0M797,8670.67%
SHOPShopify Inc$93.9M791,9900.67%
IDXXIDEXX Laboratories Inc.$93.7M166,6860.67%
PWRQuanta Services, Inc.$93.4M170,1920.67%
MCOMoodys Corp.$93.1M213,3310.67%
MPWRMonolithic Power Systems Inc.$91.1M83,3430.65%
LMATLemaitre Vascular Inc.$91.1M834,5290.65%
EATBrinker International, Inc.$87.9M615,7320.63%
CASYCasey'S General Stores Inc.$86.4M118,6900.62%
ABCBAmeris Bancorp$85.5M1,095,9660.61%
NOWServicenow Inc$85.3M815,8710.61%
PJTPJT Partners Inc.$84.4M604,3520.61%
KEXKirby Corp$83.1M625,5420.60%
HALOHalozyme Therapeutics Inc$82.8M1,280,5920.59%
EMEEmcor Group Inc$81.4M110,2080.58%
LIVNLivaNova PLC$81.0M1,274,8200.58%
CALXCalix Inc.$80.6M1,644,2890.58%
TPRTapestry Inc$80.2M568,5660.57%
AUBAtlantic Union Bankshares Corp$80.1M2,241,8740.57%
OLLIOllies Bargain Outlet Holdings Inc$79.9M868,1900.57%
UTIUniversal Technical Institute, Inc$77.7M2,152,9780.56%
SKYChampion Homes Inc.$77.4M1,040,8880.55%
FIXComfort Systems USA Inc.$76.1M55,1920.55%
BCPCBalchem Corp$75.6M445,8130.54%
ACIWACI Worldwide Inc$75.2M1,833,8080.54%
MDBMongoDB Inc.$73.9M301,8970.53%
SXTSensient Technologies Corp$73.4M848,9600.53%
TGTXTG Therapeutics Inc$72.0M2,168,0810.52%
CARGCargurus Inc$71.9M2,110,5370.52%
AVAVAeroVironment, Inc.$71.8M392,5080.51%
JBTMJBT Marel Corp.$71.3M557,3780.51%
MMSIMerit Medical Systems Inc.$70.9M1,029,2490.51%
PLTRPalantir Technologies Inc$70.9M484,7140.51%
FSSFederal Signal Corp.$69.5M642,3600.50%
RJFRaymond James Financial Inc.$68.3M471,3890.49%
CRCrane Co.$67.1M392,1210.48%
AEISAdvanced Energy Industries, Inc.$66.9M207,3710.48%
DTDynatrace Inc$66.9M1,808,8540.48%
CSWCSW Industrials Inc.$65.8M252,3480.47%
IBKRInteractive Brokers Group Inc$65.2M971,5290.47%
VIKViking Holdings Ltd.$62.3M847,3210.45%
CVLTCommvault Systems Inc.$59.9M768,6460.43%
HEIHeico Corp$57.7M210,3000.41%
IMAXIMAX Corporation$57.4M1,510,3750.41%
KRMNKarman Holdings Inc.$56.6M707,1960.41%
NETCloudflare Inc$56.5M273,7560.40%
CXTCrane NXT Co$55.6M1,370,7980.40%
YETIYeti Holdings Inc$51.3M1,401,4400.37%
FASTFastenal Co.$49.8M1,073,7950.36%
VCELVericel Corporation$48.5M1,506,9180.35%
APGAPI Group Corp$47.9M1,181,5110.34%
FROGJFrog Ltd$47.5M1,012,8580.34%
ROSTRoss Stores Inc$47.4M218,9660.34%
IWFiShares Trust RUS 1000 GRW ETF$47.0M110,3340.34%
VBKVanguard Index Funds SML CP GRW ET$45.9M151,8790.33%
EHCEncompass Health Corporation$40.9M422,3960.29%
TSCOTractor Supply Co$40.3M889,0270.29%
IWPiShares Trust RUS MD CP GR ETF$39.9M311,1680.29%
CAVACAVA Group Inc.$39.8M492,0590.29%
QQnity Electronics Inc.$39.3M340,7050.28%
TRNOTerreno Realty Corporation$37.8M615,7660.27%
BJBJ Wholesale Club Holdings Inc$36.3M369,1100.26%
VMIValmont Industries, Inc.$35.9M89,8840.26%
CRDOCredo Technology Group Holding Ltd$33.6M357,8060.24%
HLIHoulihan Lokey Inc.$33.5M232,9800.24%
STESteris PLC$33.3M150,4270.24%
CRSCarpenter Technology Corporation$32.7M82,9380.23%
TERTeradyne Inc.$32.2M108,4470.23%
CTASCintas Corporation$32.1M189,8110.23%
TXRHTexas Roadhouse Inc$31.8M192,5930.23%
JPMJPMorgan Chase & Co.$31.7M107,6010.23%
DDOGDatadog Inc$31.5M266,5060.23%
CATCaterpillar Inc$30.6M43,1880.22%
GWREGuidewire Software Inc$30.3M202,8740.22%
FICOFair Isaac Corporation$30.3M28,4170.22%
RRCRange Resources Corp.$29.5M653,1750.21%
EXPEExpedia Group Inc$29.1M125,9290.21%
TOSTToast Inc$28.9M1,091,2360.21%
MEDPMedpace Holdings Inc.$28.9M60,1870.21%
DHID.R. Horton, Inc.$28.3M205,8910.20%
MYRGMYR Grp Inc$27.5M97,2830.20%
RBRKRubrik Inc.$26.7M545,7250.19%
PBHPrestige Consumer Healthcare Inc$26.7M450,2000.19%
LECOLincoln Electric Holdings Inc.$26.3M105,5260.19%
ADIAnalog Devices Inc.$26.1M82,1590.19%
HWKNHawkins Inc$25.4M165,3800.18%
CMLIXCongress Large Cap Growth Fund - I$25.2M555,3570.18%
ENTGEntegris Inc$25.1M214,4790.18%
PTCPTC Inc$24.6M172,7710.18%
HDHome Depot Inc.$24.6M74,7800.18%
AZTAAzenta Inc$24.2M1,145,6350.17%
DELLDell Technologies Inc$24.0M146,0710.17%
NFLXNetflix, Inc.$22.6M235,2500.16%
PODDInsulet Corporation$22.1M105,2280.16%
GOOGAlphabet Inc.$21.1M73,3910.15%
IESCIES Holdings Inc.$20.7M43,5130.15%
MIRMirion Technologies Inc$20.7M1,114,0610.15%
AMGNAmgen Inc.$20.6M58,6700.15%
FNDFloor And Decor Holding Inc.$20.1M396,2920.14%
ZTSZoetis Inc.$19.8M167,3080.14%
NEENextEra Energy Inc$19.5M210,2180.14%
CMECME Group Inc.$19.3M65,2810.14%
VIRTVirtu Financial Inc$19.2M437,4240.14%
SYKStryker Corporation$19.0M57,8470.14%

This table is the 150 largest positions by value, out of 417 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 CONGRESS ASSET MANAGEMENT CO (CIK 897378, accession 0000897378-26-000005). 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

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