Stocks/Funds/CIK 1089755

SOUTHERNSUN ASSET MANAGEMENT, LLC

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1089755
Assets
$690M
-0.1% YoY
Holdings
31
Lifetime alpha vs market
-2.02% annual
Average hold time
4.9 yr
median 3.8 yr

Quarterly history

Cum return +40% vs S&P +52% · α -12% lifetimeAUM $690M · peak $4.1BFlow $-76M (-11%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+11.43%
adds when stocks drop
when a holding falls −10%+
Middle response
-1.53%
baseline attrition
Rally response
-10.66%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
DARDarling Ingredients Inc.$48M7.0%+98.0%10.5 yr
MUSAMurphy USA Inc.$42M6.1%+5.8%10.5 yr
BOOTBoot Barn Holdings, Inc.$40M5.8%+36.2%3.5 yr
LPXLouisiana-Pacific Corpor$35M5.1%-19.9%3.3 yr
EXTRExtreme Networks, Inc.$35M5.0%+14.0%1.3 yr
LOBLive Oak Bancshares, Inc$34M5.0%+24.5%3.5 yr
USPHU.S. Physical Therapy, I$33M4.8%+6.1%3.8 yr
BCOThe Brink's Company$33M4.8%+21.5%10.5 yr
CXTCrane NXT, Co.$32M4.6%-20.0%1.8 yr
BDCBelden Inc.$30M4.3%+14.7%8.0 yr
AGCOAGCO Corporation$29M4.2%+26.5%10.5 yr
MSAMSA Safety Incorporated$28M4.1%+13.2%1.0 yr
AWIArmstrong World Industri$28M4.0%+17.8%5.5 yr
DORMDorman Products, Inc.$26M3.7%-13.4%6.3 yr
EPACEnerpac Tool Group Corp.$24M3.5%-18.6%6.3 yr

Portfolio composition (YoY)

Industry mix
Industrial - Machinery15.3%+9.9pp$106M
Communication Equipment9.3%+1.8pp$64M
Security & Protection Services8.8%+1.7pp$61M
Auto - Parts7.2%+0.7pp$50M
Packaged Foods7.0%+0.5pp$48M
Specialty Retail6.1%+1.6pp$42M
Apparel - Retail5.8%+0.4pp$40M
Chemicals - Specialty5.3%-1.2pp$37M
Paper, Lumber & Forest Products5.1%-1.0pp$35M
Banks - Regional5.0%+1.6pp$34M
Country
US100.0%+0.0pp
Top 5: 29.0% · Top 10: 52.4% · Top 25: 94.9%

Winners

TickerPrev $PnLYoY %
DAR$45M+0.04B98.0%
AEIS$14M+0.03B239.4%
MOD$18M+0.03B182.4%
NGVT$24M+0.02B79.9%
BOOT$37M+0.01B36.2%

Losers

TickerPrev $PnLYoY %
LPX$42M-0.01B-19.9%
EPAC$31M-0.01B-18.6%
DORM$27M-0.00B-13.4%
BR$12M-0.00B-31.8%
WSO$7M-0.00B-26.4%

Top buys this quarter · 15

BOOT Boot Barn Holdings, Inc.+$12M
DORM Dorman Products, Inc.+$6M
EXTR Extreme Networks, Inc.+$5M
CXT Crane NXT, Co.+$5M
EPAC Enerpac Tool Group Corp.+$2M
LPX Louisiana-Pacific Corporation+$35M
OSK Oshkosh Corporation+$2M
FND Floor & Decor Holdings, Inc.+$4M
AWI Armstrong World Industries, In+$28M
LOB Live Oak Bancshares, Inc.+$34M

Top sells this quarter · 15

MOD Modine Manufacturing Company$30M
AEIS Advanced Energy Industries, In$25M
DAR Darling Ingredients Inc.$41M
BCO The Brink's Company$10M
MUSA Murphy USA Inc.$37M
USPH U.S. Physical Therapy, Inc.$3M
AGCO AGCO Corporation$28M
BDC Belden Inc.$3M
MSA MSA Safety Incorporated$2M
NGVT Ingevity Corporation$16M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$690M31+27.97%+17.59%+10.38%-0.08B
2025-12-31$716M32+6.50%+17.72%-11.22%-0.03B
2025-09-30$772M31+2.36%+17.52%-15.15%-0.02B
2025-06-30$712M31+2.77%+14.94%-12.17%-0.06B
2025-03-31$691M30-10.62%+8.30%-18.92%-0.02B
2024-12-31$803M30+8.04%+24.89%-16.85%+0.02B
2024-09-30$844M29+26.43%+36.04%-9.61%-0.08B
2024-06-30$829M27+5.39%+24.49%-19.10%-0.04B
2024-03-31$898M27+16.65%+29.62%-12.97%-0.03B
2023-12-31$867M29+12.88%+26.18%-13.30%-0.06B
2023-09-30$854M27+12.83%+21.57%-8.74%-0.02B
2023-06-30$948M26+21.92%+19.42%+2.50%+0.01B
2023-03-31$876M28+5.09%-7.82%+12.91%-0.04B
2022-12-31$878M29+9.19%+7.56%+1.63%-0.01B
2022-09-30$810M28+0.02%-4.93%+4.95%+0.00B
2022-06-30$807M27-7.51%-16.11%+8.60%-0.05B