Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

SOUTHERNSUN ASSET MANAGEMENT, LLC 13F Holdings -- Portfolio & Top Positions (2026-03-31)

SOUTHERNSUN ASSET MANAGEMENT, LLC (CIK 1089755) reported $689.9M across 31 reported positions in its SEC 13F filing for 2026-03-31. Largest positions: DAR ($48.2M, 6.99%), MUSA ($41.9M, 6.07%), BOOT ($39.9M, 5.78%), LPX ($35.3M, 5.12%), EXTR ($34.7M, 5.02%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1DARDarling Ingredients Inc.$48.2M6.99%780,110Trimmed
2MUSAMurphy USA Inc.$41.9M6.07%84,797Trimmed
3BOOTBoot Barn Holdings Inc$39.9M5.78%272,348Added
4LPXLouisiana-Pacific Corp$35.3M5.12%485,869Added
5EXTRExtreme Networks$34.7M5.02%2.3MAdded
6LOBLive Oak Bancshares Inc$34.2M4.95%1.0MAdded
7USPHUS Physical Therapy Inc$33.0M4.78%439,904Trimmed
8BCOThe Brink's Co.$32.8M4.76%316,643Trimmed
9CRCrane NXT$31.8M4.61%783,808Added
10BDCBelden Inc$29.7M4.30%258,377Trimmed
11AGCOAGCO Corp.$28.7M4.15%247,276Trimmed
12MSAMSA Safety Inc$28.0M4.05%170,520Trimmed
13AWIArmstrong World Industries Inc$27.7M4.02%168,278Added
14DORMDorman Products Inc$25.7M3.73%246,521Added
15EPACEnerpac Tool Group$24.2M3.51%664,874Added
16MODModine Manufacturing Co$23.9M3.46%110,286Trimmed
17CSWCSW Industrials$23.0M3.34%88,336Added
18SCLStepan Co$18.9M2.74%378,799Trimmed
19NGVTIngevity Corp$17.9M2.59%251,051Trimmed
20SAMThe Boston Beer Co Inc$17.2M2.50%74,816Trimmed
21AEISAdvanced Energy Industries Inc$15.2M2.20%47,108Trimmed
22KAIKadant Inc$12.6M1.82%43,018Trimmed
23THOThor Industries Inc.$10.5M1.52%131,107Trimmed
24APGAPi Group$10.3M1.50%255,298Added
25GNRCGenerac Holdings Inc$9.5M1.38%48,743Trimmed

Source: SEC Form 13F filings · as of 2026-03-31