CONGRESS ASSET MANAGEMENT CO

CIK

897378

Location

BOSTON, MA

Portfolio Value

Large $16,070,251,902

Diversification

Diversified

Filing Date

Global Rank

#34 / 3,203 ▲ 314

Top Industry

Semiconductors 9.7%

3Y Alpha vs SPY

-7.6%

Period ended 30 days ago

Filed Jul 7, 2026 · 23d

26 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+38.5%

SPY

+65.3%

Annualised alpha

-6.8%

Max drawdown

−22.4%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

341 tracked 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%	$368,761,571	16
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
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
XOM	ExxonMobil Holdings Corp	47,622	$8,079,548
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
MQ	Marqeta, Inc.	1,260,214	$5,141,673
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
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

341 tracked positions · $16,070,251,902 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 341 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%	1.74%
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%	1.10%
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%	0.89%
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%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.