Stocks/Funds/CIK 1406484

Harvey Partners, LLC

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1406484
Assets
$1.23B
+46.0% YoY
Holdings
45
Lifetime alpha vs market
+1.16% annual
Average hold time
2.9 yr
median 2.5 yr

Quarterly history

Cum return +59% vs S&P +52% · α +7% lifetimeAUM $1.2B · peak $1.2BFlow $-20M (-2%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+7.27%
adds when stocks drop
when a holding falls −10%+
Middle response
+0.23%
steady accumulation
Rally response
-0.22%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
ADEAAdeia Inc.$66M5.4%+84.3%3.5 yr
NPOEnPro Industries, Inc.$64M5.2%+55.8%5.8 yr
MKSIMKS Inc.$56M4.5%+188.8%3.0 yr
NGVTIngevity Corporation$53M4.3%+79.9%1.8 yr
BWXTBWX Technologies, Inc.$52M4.2%+108.6%6.3 yr
AZZAZZ Inc.$44M3.6%+50.8%5.5 yr
MTRNMaterion Corporation$42M3.4%+78.2%0.8 yr
WCNWaste Connections, Inc.$42M3.4%-16.2%3.5 yr
LFUSLittelfuse, Inc.$41M3.3%+74.5%2.3 yr
NOVTNovanta Inc.$38M3.1%-7.6%0.5 yr
MLMMartin Marietta Material$38M3.1%+23.8%4.0 yr
ASTEAstec Industries, Inc.$36M2.9%+58.1%4.3 yr
BVBrightView Holdings, Inc$35M2.8%-8.2%2.3 yr
$34M2.8%2.5 yr
THRMGentherm Incorporated$34M2.8%+3.9%1.5 yr

Portfolio composition (YoY)

Industry mix
Hardware, Equipment & Parts14.7%+3.5pp$181M
Software - Application8.7%-1.6pp$108M
Industrial - Machinery7.8%+1.1pp$96M
Specialty Business Services7.7%-3.2pp$95M
Chemicals - Specialty6.6%+1.7pp$81M
Waste Management5.2%-1.4pp$64M
Aerospace & Defense4.2%+0.4pp$52M
Semiconductors3.7%+0.1pp$45M
Unknown3.6%+0.4pp$45M
Manufacturing - Metal Fabrication3.6%-2.8pp$44M
Country
US83.8%+11.7pp
GB4.2%-1.8pp
Unknown3.6%+0.4pp
CA3.4%-3.2pp
IL2.4%-3.9pp
FI1.9%-0.7pp
LU0.7%-2.5pp
Top 5: 23.6% · Top 10: 40.5% · Top 25: 78.6%

Winners

TickerPrev $PnLYoY %
LASR$16M+0.10B633.8%
MKSI$21M+0.04B188.8%
BWXT$32M+0.04B108.6%
ADEA$42M+0.03B84.3%
AZZ$54M+0.03B50.8%

Losers

TickerPrev $PnLYoY %
WCN$56M-0.01B-16.2%
BV$33M-0.00B-8.2%

Top buys this quarter · 15

POOL Pool Corporationnew+$27M
PANW Palo Alto Networks, Inc.new+$15M
SMG The Scotts Miracle-Gro Company+$13M
WH Wyndham Hotels & Resorts, Inc.new+$10M
SPY State Street SPDR S&P 500 ETF new+$8M
NGVT Ingevity Corporation+$8M
MLM Martin Marietta Materials, Inc+$8M
CWST Casella Waste Systems, Inc.+$7M
WCN Waste Connections, Inc.+$6M
THRM Gentherm Incorporated+$34M

Top sells this quarter · 15

GLDD Great Lakes Dredge & Dock Corp$53M
LASR nLIGHT, Inc.$45M
DNOW Dnow Inc.$14M
MKSI MKS Inc.$46M
OEC Orion Engineered Carbons S.A.$7M
THR Thermon Group Holdings, Inc.$29M
VRNS Varonis Systems, Inc.$6M
MTRN Materion Corporation$40M
NOK Nokia Oyj$22M
APLD Applied Digital Corporation$2M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$1.23B45+46.80%+17.59%+29.21%-0.02B
2025-12-31$1.11B43+21.15%+17.72%+3.43%-0.01B
2025-09-30$1.10B44+17.03%+17.52%-0.48%+0.01B
2025-06-30$1.00B41+10.55%+14.94%-4.39%+0.02B
2025-03-31$843M41-9.81%+8.30%-18.11%+0.02B
2024-12-31$887M41+4.31%+24.89%-20.57%+0.03B
2024-09-30$869M42+17.16%+36.04%-18.88%+0.04B
2024-06-30$809M39+12.01%+24.49%-12.48%-0.07B
2024-03-31$922M40+23.89%+29.62%-5.73%+0.00B
2023-12-31$857M42+22.79%+26.18%-3.39%-0.01B
2023-09-30$779M40+27.06%+21.57%+5.49%-0.02B
2023-06-30$809M40+24.86%+19.42%+5.43%-0.03B
2023-03-31$791M38-2.85%-7.82%+4.97%-0.03B
2022-12-31$771M37+15.13%+7.56%+7.57%-0.00B
2022-09-30$671M33-3.31%-4.93%+1.62%+0.23B
2022-06-30$453M32-17.90%-16.11%-1.79%+0.12B