CONGRESS ASSET MANAGEMENT CO

CIK

897378

Location

BOSTON, MA

Portfolio Value

Large $16,076,562,076

Diversification

Diversified

Filing Date

Global Rank

#3 / 295 ▲ 344

Top Industry

Semiconductors 9.7%

3Y Alpha vs SPY

-7.4%

Period ended 9 days ago

Filed Jul 7, 2026 · 2d

26 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+45.3%

SPY

+76.5%

Annualised alpha

-7.6%

Max drawdown

−22.6%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

342 positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

3.3%

+0.1 pts

Top 5

12.1%

+0.2 pts

Top 10

18.8%

−0.5 pts

HHI

Diversified−0

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	31.2%	$5,015,165,014	79
Industrials	20.4%	$3,277,160,306	58
Healthcare	12.1%	$1,943,599,993	44
Consumer Cyclical	11.3%	$1,814,183,698	40
Financial Services	8.8%	$1,408,111,535	42
Communication Services	5.3%	$845,014,966	9
Consumer Defensive	3.6%	$582,490,415	18
Basic Materials	2.7%	$439,046,203	13
Energy	2.3%	$375,071,745	17
Real Estate	1.7%	$280,398,614	10
Utilities	0.6%	$92,890,612	9
Unclassified	0.0%	$3,428,975	3

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
MIR	Mirion Technologies, Inc.	+5,571,373	6,685,434	$119,869,831
VCEL	Vericel Corp	+1,409,377	2,916,295	$129,745,964
IMAX	Imax Corp	+1,026,915	2,537,290	$101,136,379
IRT	Independence Realty Trust, Inc.	+857,281	1,002,178	$16,726,350
UTI	Universal Technical Institute Inc	+847,617	3,000,595	$128,335,448
NOMD	Nomad Foods Ltd	+837,217	1,258,575	$13,781,396
LUMN	Lumen Technologies, Inc.	+557,398	982,011	$7,541,844
IBKR	Interactive Brokers Group, Inc.	+556,210	1,527,739	$132,974,402
FLS	Flowserve Corp	+469,872	589,829	$43,741,718
TGTX	Tg Therapeutics, Inc.	+432,042	2,600,123	$142,850,757
BROS	Dutch Bros Inc.	+431,342	648,457	$46,565,697
AFRM	Affirm Holdings, Inc.	+417,470	426,470	$34,778,628
SEI	Solaris Energy Infrastructure, Inc.	+340,788	344,935	$27,753,470
TXN	Texas Instruments Inc	+260,742	265,222	$79,054,721
AUB	Atlantic Union Bankshares Corp	+259,290	2,501,164	$105,824,248
APH	Amphenol Corp /De/	+253,529	1,220,821	$215,255,158
UMBF	Umb Financial Corp	+245,296	396,647	$56,625,325
FROG	JFrog Ltd	+229,133	1,241,991	$112,872,142
LIVN	LivaNova PLC	+227,424	1,502,244	$123,529,524
RGEN	Repligen Corp	+214,359	1,012,226	$138,108,115
MDB	MongoDB, Inc.	+209,330	511,227	$171,721,149
COHR	Coherent Corp.	+189,582	190,782	$75,257,775
AVA	Avista Corp	+181,272	273,449	$11,186,798
MSFT	Microsoft Corp	+177,216	815,323	$304,131,785
GTY	Getty Realty Corp /Md/	+174,868	453,158	$15,117,350
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
CALX	Calix, Inc	−1,635,391	8,898	$332,073
BSX	Boston Scientific Corp	−1,619,238	10,247	$437,341
YETI	YETI Holdings, Inc.	−1,394,970	6,470	$320,653
TSCO	Tractor Supply Co /De/	−882,121	6,906	$218,298
PRIM	Primoris Services Corp	−812,154	5,942	$588,971
NOW	ServiceNow, Inc.	−796,557	19,314	$1,917,493
ANET	Arista Networks, Inc.	−556,248	1,176,606	$199,881,827
TILE	Interface Inc	−536,278	10,431	$373,847
RMBS	Rambus Inc	−497,985	777,993	$103,270,790
PEN	Penumbra Inc	−305,146	12,191	$3,849,308
TJX	Tjx Companies Inc /De/	−279,525	924,463	$140,056,144
STRL	Sterling Infrastructure, Inc.	−266,686	230,412	$193,398,616
ACIW	Aci Worldwide, Inc.	−241,502	1,592,306	$80,077,068
COO	Cooper Companies, Inc.	−238,407	3,688	$264,466
OLLI	Ollie's Bargain Outlet Holdings, Inc.	−234,799	633,391	$48,695,100
P	Everpure, Inc.	−214,923	3,610	$284,431
CXT	Crane NXT, Co.	−204,537	1,166,261	$59,665,912
TMO	Thermo Fisher Scientific Inc.	−191,813	8,475	$4,249,026
TXRH	Texas Roadhouse, Inc.	−190,962	1,631	$315,158
MLM	Martin Marietta Materials Inc	−177,021	60,950	$35,149,865
HWM	Howmet Aerospace Inc.	−173,961	622,443	$167,350,024
AMZN	Amazon Com Inc	−169,277	733,843	$174,904,140
ZTS	Zoetis Inc.	−143,732	23,576	$1,694,171
NVT	nVent Electric plc	−137,916	983,875	$166,875,038
CARG	CarGurus, Inc.	−134,189	1,976,348	$67,373,703
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
ARM	Arm Holdings PLC /Uk	409,049	$145,036,503
KLIC	Kulicke & Soffa Industries Inc	878,002	$117,441,547
AROC	Archrock, Inc.	2,213,208	$90,099,697
COCO	Vita Coco Company, Inc.	1,207,102	$79,837,726
POWI	Power Integrations Inc	930,059	$77,901,741
AXON	Axon Enterprise, Inc.	138,822	$77,825,001
MU	Micron Technology Inc	59,538	$68,724,118
ROKU	Roku, Inc	266,609	$36,829,367
TWLO	Twilio Inc	138,114	$28,497,061
GMED	Globus Medical Inc	338,625	$26,754,761
IOT	Samsara Inc.	816,215	$26,469,852
KLAC	Kla Corp	78,629	$23,723,155
TMDX	TransMedics Group, Inc.	227,834	$15,132,734
KRYS	Krystal Biotech, Inc.	40,134	$14,916,603
NBIX	Neurocrine Biosciences Inc	82,486	$13,902,190
AMRX	Amneal Pharmaceuticals, Inc.	782,778	$13,549,887
AOSL	ALPHA & OMEGA SEMICONDUCTOR Ltd	203,460	$9,629,761
KVYO	Klaviyo, Inc.	636,230	$9,607,073
CPF	Central Pacific Financial Corp	241,153	$9,212,044
DXPE	Dxp Enterprises Inc	52,592	$8,874,374
SNOW	Snowflake Inc.	31,420	$7,996,390
OSBC	Old Second Bancorp Inc	338,650	$7,897,318
IDYA	IDEAYA Biosciences, Inc.	117,713	$4,387,163
PM	Philip Morris International Inc.	3,287	$594,651
MELI	Mercadolibre Inc	275	$466,782
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
DT	Dynatrace, Inc.	1,808,854	$66,891,420
HLI	Houlihan Lokey, Inc.	232,980	$33,460,587
GWRE	Guidewire Software, Inc.	202,874	$30,341,835
PBH	Prestige Consumer Healthcare Inc.	450,200	$26,683,354
PTC	Ptc Inc.	172,771	$24,618,139
AZTA	Azenta, Inc.	1,145,635	$24,207,267
PODD	Insulet Corp	105,228	$22,081,043
IESC	IES Holdings, Inc.	43,513	$20,732,639
MQ	Marqeta, Inc.	1,260,214	$20,566,692
KNSL	Kinsale Capital Group, Inc.	41,883	$14,309,745
MORN	Morningstar, Inc.	77,405	$13,085,315
POOL	Pool Corp	53,196	$10,763,146
SPSC	Sps Commerce Inc	174,758	$9,728,777
PRAX	Praxis Precision Medicines, Inc.	24,839	$8,002,877
FSV	FirstService Corp	43,743	$6,077,652
ACLX	Arcellx, Inc.	47,551	$5,459,805
CWST	Casella Waste Systems Inc	64,938	$5,152,180
AIR	Aar Corp	46,692	$5,110,906
EFOR	Everforth Inc	125,326	$4,851,369
LGN	Legence Corp.	85,794	$4,843,929
AORT	Artivion, Inc.	127,103	$4,654,511
HL	Hecla Mining Co/De/	206,892	$3,854,397
ACAD	Acadia Pharmaceuticals Inc	160,794	$3,579,274
CDNL	Cardinal Infrastructure Group Inc.	87,372	$3,464,736
LRN	Stride, Inc.	36,138	$3,186,287
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

342 positions · $16,076,562,076 total · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 342 positions by value · page 1 of 7

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp Technology	Added	2,627,947	+117,919	$525,825,915	+20.1%	3.27%
AAPL	Apple Inc. Technology	Reduced	1,609,746	-21,739	$465,796,102	+12.5%	2.90%
GOOGL	Alphabet Inc. Communication Services	Reduced	1,020,191	-34,363	$364,585,657	+20.2%	2.27%
MSFT	Microsoft Corp Technology	Added	815,323	+177,216	$304,131,785	+28.8%	1.89%
AVGO	Broadcom Inc. Technology	Reduced	738,306	-19,425	$278,895,091	+18.9%	1.73%
V	Visa Inc. Financial Services	Added	663,519	+101,426	$227,646,733	+34.0%	1.42%
GEV	GE Vernova Inc. Industrials	Reduced	192,672	-6,153	$226,362,625	+30.4%	1.41%
APH	Amphenol Corp /De/ Technology	Added	1,220,821	+253,529	$215,255,158	+76.1%	1.34%
LGND	Ligand Pharmaceuticals Inc Healthcare	Added	659,911	+155,274	$208,591,267	+107.0%	1.30%
ANET	Arista Networks, Inc. Technology	Reduced	1,176,606	-556,248	$199,881,827	−6.1%	1.24%
COST	Costco Wholesale Corp /New Consumer Defensive	Reduced	208,851	-7,173	$195,373,844	−9.2%	1.22%
STRL	Sterling Infrastructure, Inc. Industrials	Reduced	230,412	-266,686	$193,398,616	−4.5%	1.20%
GS	Goldman Sachs Group Inc Financial Services	Reduced	182,093	-7,322	$184,163,397	+14.9%	1.15%
UFPT	Ufp Technologies Inc Healthcare	Reduced	687,439	-252,761	$182,260,702	+0.1%	1.13%
ETN	Eaton Corp plc Industrials	Reduced	413,077	-90,651	$176,020,371	−2.3%	1.09%
ASML	Asml Holding NV Technology	Added	88,265	+5,639	$175,597,912	+60.9%	1.09%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	733,843	-169,277	$174,904,140	−7.0%	1.09%
MOG-A	Moog Inc. Industrials	Added	406,324	+3,762	$172,216,364	+46.2%	1.07%
MDB	MongoDB, Inc. Technology	Added	511,227	+209,330	$171,721,149	+132.4%	1.07%
MOD	Modine Manufacturing Co Consumer Cyclical	Reduced	629,268	-21,405	$168,027,141	+19.2%	1.05%
HWM	Howmet Aerospace Inc. Industrials	Reduced	622,443	-173,961	$167,350,024	−8.8%	1.04%
NVT	nVent Electric plc Industrials	Reduced	983,875	-137,916	$166,875,038	+25.8%	1.04%
META	Meta Platforms, Inc. Communication Services	Reduced	292,203	-11,711	$164,595,027	−5.3%	1.02%
WELL	Welltower Inc. Real Estate	Reduced	721,601	-28,599	$163,781,778	+10.4%	1.02%
NPO	Enpro Inc. Industrials	Added	433,112	+34,681	$163,252,906	+63.5%	1.02%
NOVT	Novanta Inc Technology	Added	973,767	+64,057	$157,983,958	+47.0%	0.98%
CW	Curtiss Wright Corp Industrials	Reduced	198,758	-29,077	$150,610,862	−2.9%	0.94%
PH	Parker-Hannifin Corp Industrials	Reduced	152,862	-6,314	$149,517,379	+4.9%	0.93%
LLY	ELI LILLY & Co Healthcare	Added	123,060	+18,958	$147,601,868	+54.2%	0.92%
ARM	Arm Holdings PLC /Uk Technology	NEW	409,049	NEW	$145,036,503	NEW	0.90%
TGTX	Tg Therapeutics, Inc. Healthcare	Added	2,600,123	+432,042	$142,850,757	+98.3%	0.89%
TKO	TKO Group Holdings, Inc. Communication Services	Reduced	706,691	-21,115	$142,263,965	−3.1%	0.88%
TJX	Tjx Companies Inc /De/ Consumer Cyclical	Reduced	924,463	-279,525	$140,056,144	−27.2%	0.87%
RGEN	Repligen Corp Healthcare	Added	1,012,226	+214,359	$138,108,115	+46.9%	0.86%
ORLY	O Reilly Automotive Inc Consumer Cyclical	Reduced	1,470,148	-54,509	$135,385,929	−3.8%	0.84%
IBKR	Interactive Brokers Group, Inc. Financial Services	Added	1,527,739	+556,210	$132,974,402	+104.1%	0.83%
BOOT	Boot Barn Holdings, Inc. Consumer Cyclical	Added	797,619	+80,045	$131,024,873	+24.8%	0.82%
CVLT	Commvault Systems Inc Technology	Added	923,066	+154,420	$130,826,144	+118.5%	0.81%
WMB	Williams Companies, Inc. Energy	Reduced	1,747,896	-71,975	$129,938,588	−1.9%	0.81%
VCEL	Vericel Corp Healthcare	Added	2,916,295	+1,409,377	$129,745,964	+167.6%	0.81%
UTI	Universal Technical Institute Inc Consumer Defensive	Added	3,000,595	+847,617	$128,335,448	+65.1%	0.80%
ECL	Ecolab Inc. Basic Materials	Reduced	454,964	-19,474	$126,757,520	+0.4%	0.79%
CRDO	Credo Technology Group Holding Ltd Technology	Added	458,375	+100,569	$124,655,081	+271.1%	0.78%
LIVN	LivaNova PLC Healthcare	Added	1,502,244	+227,424	$123,529,524	+52.5%	0.77%
MIR	Mirion Technologies, Inc. Industrials	Added	6,685,434	+5,571,373	$119,869,831	+478.8%	0.75%
ISRG	Intuitive Surgical Inc Healthcare	Reduced	300,950	-11,460	$119,681,796	−16.9%	0.74%
IDCC	InterDigital, Inc. Technology	Added	421,433	+35,420	$119,320,325	+2.4%	0.74%
PWR	Quanta Services, Inc. Industrials	Reduced	163,336	-6,856	$117,608,453	+25.9%	0.73%
KLIC	Kulicke & Soffa Industries Inc Technology	NEW	878,002	NEW	$117,441,547	NEW	0.73%
EAT	Brinker International, Inc Consumer Cyclical	Added	685,348	+69,616	$115,138,464	+31.0%	0.72%