Walthausen & Co., LLC

13F filer, CIK 1483339, MALTA, NY

Walthausen & Co., LLC reported $453,028,000 across 145 holdings for the quarter ended 2021-06-30, in a 13F-HR/A filed 2021-08-13. Its ten largest share positions make up 13.91% of the portfolio.

Filed 2021-08-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:38:33 UTC13F-HR/A 0001483339-21-000005

A NEW HOLDINGS amendment repeated most of the original and was read as a restatement (H3).

Period: 2021-06-30
Reported value: $453M
Holdings: 145
Top 10 weight: 13.91%
New: 18
Sold out: 14

Largest buys vs the previous quarter

Security	Shares change	Approx. value
GDOTnew	+89,990	$4.22M
LYTSnew	+440,595	$3.53M
GVAnew	+82,720	$3.44M
UFPTnew	+59,430	$3.41M
VPGnew	+97,930	$3.33M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

Security	Shares change	Approx. value
BIGGQexited	-75,240	-$5.14M
TEXTAINER GROUP HOLDINGS LTDreduced	-128,470	-$4.34M
MGRCreduced	-52,590	-$4.29M
MHOreduced	-68,020	-$3.99M
SOUTHWESTERN ENERGY COexited	-817,270	-$3.8M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q2 2021

Share positions as resolved from 13F-HR/A 0001483339-21-000005, largest first. % of portfolio is the value over $453,021,000, the sum of the share positions whose value is usable for ratios (method).

Security	Shares	Value	% of portfolio	Change	Timeline
CACCAMDEN NATL CORP	152,121	$7.26M	1.6%	-6,940	Timeline
MERCMERCER INTL INC	546,280	$6.96M	1.54%	+82,720	Timeline
ARAYACCURAY INC DEL	1,472,550	$6.66M	1.47%	+68,420	Timeline
GLDDGREAT LAKES DREDGE & DOCK CO	442,462	$6.46M	1.43%	-232,125	Timeline
GSBCGREAT SOUTHN BANCORP INC	118,964	$6.41M	1.42%	-750	Timeline
SIGSIGNET JEWELERS LTD	76,200	$6.16M	1.36%	+5,720	Timeline
ALNTALLIENT INC	176,595	$6.1M	1.35%	+46,688	Timeline
KEKIMBALL ELECTRONICS INC	273,386	$5.94M	1.31%	-11,250	Timeline
ORNORION GROUP HLDGS INC	977,780	$5.62M	1.24%	+62,370	Timeline
KELYAKELLY SVCS INC	226,520	$5.43M	1.2%	-13,360	Timeline
PRDOPERDOCEO ED CORP	413,300	$5.07M	1.12%	+43,420	Timeline
TEXTAINER GROUP HOLDINGS LTDTEXTAINER GROUP HOLDINGS LTD	149,478	$5.05M	1.11%	-128,470
UMHUMH PPTYS INC	228,550	$4.99M	1.1%	-107,740	Timeline
MEIMETHODE ELECTRS INC	93,850	$4.62M	1.02%	-16,090	Timeline
DLXDELUXE CORP MEDIUM TERM NTS	96,000	$4.59M	1.01%	-25,820	Timeline
AMRCAMERESCO INC	72,390	$4.54M	1%	-37,560	Timeline
MNROMONRO INC	71,310	$4.53M	1%	-20,900	Timeline
KLICKULICKE & SOFFA INDS INC	73,730	$4.51M	1%	-35,960	Timeline
CMCCOMMERCIAL METALS CO	142,930	$4.39M	0.97%	-23,840	Timeline
LFCRLIFECORE BIOMEDICAL INC	387,467	$4.36M	0.96%	-29,220	Timeline
VSECVSE CORP	87,280	$4.32M	0.95%	-40,010	Timeline
EPREPR PPTYS	81,020	$4.27M	0.94%	+3,140	Timeline
NBTBNBT BANCORP INC	118,490	$4.26M	0.94%	+3,260	Timeline
SKYCHAMPION HOMES INC	79,145	$4.22M	0.93%	+1,040	Timeline
GDOTGREEN DOT CORP	89,990	$4.22M	0.93%	new	Timeline
CLFCLEVELAND-CLIFFS INC NEW	193,830	$4.18M	0.92%	+15,560	Timeline
AZZAZZ INC	80,500	$4.17M	0.92%	+4,900	Timeline
HEARTLAND FINL USA INCHEARTLAND FINL USA INC	87,270	$4.1M	0.91%	-6,870
FBNCFIRST BANCORP N C	100,100	$4.09M	0.9%	-21,190	Timeline
HERITAGE CRYSTAL CLEAN INCHERITAGE CRYSTAL CLEAN INC	136,416	$4.05M	0.89%	-30,880
WASHWASHINGTON TR BANCORP INC	78,280	$4.02M	0.89%	+16,530	Timeline
CHCOCITY HLDG CO	53,377	$4.02M	0.89%	-520	Timeline
STCSTEWART INFORMATION SVCS COR	70,530	$4M	0.88%	-9,850	Timeline
TNCTENNANT CO	49,710	$3.97M	0.88%	+2,490	Timeline
THFFFIRST FINANCIAL CORPORATION	96,860	$3.95M	0.87%	-1,050	Timeline
GLOBAL MED REIT INCGLOBAL MED REIT INC	265,202	$3.91M	0.86%	-2,790
SBCFSEACOAST BKG CORP FLA	113,130	$3.86M	0.85%	-1,110	Timeline
CNXCCONCENTRIX CORP	23,810	$3.83M	0.85%	0	Timeline
GIIIG III APPAREL GROUP LTD	112,480	$3.7M	0.82%	+43,630	Timeline
NUVASIVE INCNUVASIVE INC	52,990	$3.59M	0.79%	+770
LYTSLSI INDS INC OHIO	440,595	$3.53M	0.78%	new	Timeline
GVAGRANITE CONSTR INC	82,720	$3.44M	0.76%	new	Timeline
LKFNLAKELAND FINL CORP	55,606	$3.43M	0.76%	-10,650	Timeline
UFPTUFP TECHNOLOGIES INC	59,430	$3.41M	0.75%	new	Timeline
VPGVISHAY PRECISION GROUP INC	97,930	$3.33M	0.74%	new	Timeline
SANDERSON FARMSSANDERSON FARMS	17,703	$3.33M	0.73%	-3,220
SHOESHOE STA GROUP INC	46,040	$3.3M	0.73%	0	Timeline
WSBCWESBANCO INC	91,380	$3.26M	0.72%	-9,210	Timeline
HCKTHACKETT GROUP INC	180,672	$3.26M	0.72%	-1,570	Timeline
TCBKTRICO BANCSHARES	76,184	$3.24M	0.72%	-20,900	Timeline
HUBGHUB GROUP INC	48,590	$3.21M	0.71%	-6,210	Timeline
PACWEST BANCORP DELPACWEST BANCORP DEL	77,638	$3.2M	0.71%	-6,070
ATENA10 NETWORKS INC	282,890	$3.19M	0.7%	-31,500	Timeline
STRLSTERLING INFRASTRUCTURE INC	131,970	$3.18M	0.7%	0	Timeline
WBSWEBSTER FINL CORP	58,770	$3.13M	0.69%	0	Timeline
ANDEANDERSONS INC	102,050	$3.12M	0.69%	-34,410	Timeline
APRIA INCAPRIA INC	111,250	$3.12M	0.69%	+39,110
HWCHANCOCK WHITNEY CORPORATION	68,580	$3.05M	0.67%	-18,050	Timeline
ILPTINDUSTRIAL LOGISTICS PPTYS T	116,238	$3.04M	0.67%	-75	Timeline
WSFSWSFS FINL CORP	65,033	$3.03M	0.67%	0	Timeline
EHCENCOMPASS HEALTH CORP	38,789	$3.03M	0.67%	+1,080	Timeline
GOODRICH PETE CORP COM PARGOODRICH PETE CORP COM PAR	201,540	$3.01M	0.66%	0
MMSMAXIMUS INC	33,846	$2.98M	0.66%	-45	Timeline
INDBINDEPENDENT BK CORP MASS	39,300	$2.97M	0.65%	+1,980	Timeline
OSISOSI SYSTEMS INC	29,170	$2.96M	0.65%	+2,860	Timeline
ICHRICHOR HOLDINGS	54,700	$2.94M	0.65%	-7,470	Timeline
AGMFEDERAL AGRIC MTG CORP	29,750	$2.94M	0.65%	0	Timeline
AINALBANY INTL CORP	32,950	$2.94M	0.65%	-11,230	Timeline
WLDNWILLDAN GROUP INC	77,561	$2.92M	0.64%	+8,310	Timeline
RRYDER SYS INC	39,020	$2.9M	0.64%	new	Timeline
TRITON INTL LTDTRITON INTL LTD	55,391	$2.9M	0.64%	-5,000
KNKNOWLES CORP	144,820	$2.86M	0.63%	-55,930	Timeline
MCFTMASTERCRAFT BOAT HLDGS INC	108,640	$2.86M	0.63%	+28,160	Timeline
COLBCOLUMBIA BKG SYS INC	74,032	$2.85M	0.63%	0	Timeline
CVCOCAVCO INDS INC DEL	12,726	$2.83M	0.62%	0	Timeline
KEXKIRBY CORP	46,510	$2.82M	0.62%	new	Timeline
MCSMARCUS CORP DEL	132,970	$2.82M	0.62%	0	Timeline
DLHCDLH HLDGS CORP	241,390	$2.82M	0.62%	+56,450	Timeline
EBCEASTERN BANKSHARES INC	136,710	$2.81M	0.62%	new	Timeline
NWPXNWPX INFRASTRUCTURE INC	98,170	$2.77M	0.61%	0	Timeline
SMBKSMARTFINANCIAL INC	115,472	$2.77M	0.61%	+8,740	Timeline
PLPCPREFORMED LINE PRODS CO	37,330	$2.77M	0.61%	+2,970	Timeline
QCRHQCR HLDGS INC	56,930	$2.74M	0.6%	0	Timeline
EMEEMCOR GROUP INC	22,158	$2.73M	0.6%	0	Timeline
FISIFINANCIAL INSTITUTIONS INC	90,800	$2.72M	0.6%	+7,250	Timeline
AXSAXIS CAP HLDGS LTD	55,559	$2.72M	0.6%	0	Timeline
CENTRAL VY CMNTY BANCORPCENTRAL VY CMNTY BANCORP	133,996	$2.7M	0.6%	0
NWENORTHWESTERN ENERGY GROUP IN	44,789	$2.7M	0.6%	0	Timeline
PNFPPINNACLE FINANCIAL PARTNERS	30,475	$2.69M	0.59%	-290	Timeline
PLBCPLUMAS BANCORP	83,550	$2.68M	0.59%	+5,240	Timeline
UTIUNIVERSAL TECHNICAL INST INC	411,140	$2.67M	0.59%	+92,170	Timeline
FCCOFIRST CMNTY CORP S C	131,290	$2.65M	0.59%	+8,950	Timeline
MACKINAC FINL CORPMACKINAC FINL CORP	134,040	$2.65M	0.58%	-19,900
ACLSAXCELIS TECHNOLOGIES INC	64,080	$2.59M	0.57%	-4,050	Timeline
EXEEXPAND ENERGY CORPORATION	49,790	$2.58M	0.57%	new	Timeline
AROWARROW FINL CORP	70,778	$2.54M	0.56%	+8,820	Timeline
CNXCNX RES CORP	185,760	$2.54M	0.56%	-136,380	Timeline
ABMABM INDS INC	56,673	$2.51M	0.55%	-30,090	Timeline
HWKNHAWKINS INC	76,470	$2.5M	0.55%	+19,570	Timeline
BEACON ROOFING SUPPLY INCBEACON ROOFING SUPPLY INC	46,770	$2.49M	0.55%	new
PLABPHOTRONICS INC	183,847	$2.43M	0.54%	+9,420	Timeline
MMSIMERIT MED SYS INC	37,047	$2.4M	0.53%	-2,960	Timeline
BCMLBAYCOM CORP	131,390	$2.36M	0.52%	0	Timeline
CATCHMARK TIMBER TR INC CL ACATCHMARK TIMBER TR INC CL A	201,330	$2.36M	0.52%	0
RLGTRADIANT LOGISTICS INC	335,100	$2.32M	0.51%	0	Timeline
BSRRSIERRA BANCORP	91,206	$2.32M	0.51%	0	Timeline
INDEPENDENT BANK GROUP INCINDEPENDENT BANK GROUP INC	31,290	$2.31M	0.51%	new
WILLIAMS INDUSTRIAL SERVICESWILLIAMS INDUSTRIAL SERVICES	395,425	$2.31M	0.51%	+12,120
OCFCOCEANFIRST FINL CORP	110,350	$2.3M	0.51%	-8,450	Timeline
MGRCMCGRATH RENTCORP	27,982	$2.28M	0.5%	-52,590	Timeline
HBNCHORIZON BANCORP IND	130,470	$2.27M	0.5%	new	Timeline
ITTITT INC	24,714	$2.26M	0.5%	-12,530	Timeline
CAMBRIDGE BANCORPCAMBRIDGE BANCORP	27,170	$2.25M	0.5%	0
VVXV2X INC	47,370	$2.25M	0.5%	+10,070	Timeline
ETDETHAN ALLEN INTERIORS INC	81,480	$2.25M	0.5%	new	Timeline
THRTHERMON GROUP HLDGS INC	131,260	$2.24M	0.49%	new	Timeline
LCIILCI INDS	16,955	$2.23M	0.49%	-1,160	Timeline
FMNBFARMERS NATIONAL BANC CORP	143,530	$2.23M	0.49%	0	Timeline
CHASE CORPCHASE CORP	21,570	$2.21M	0.49%	new
ITICINVESTORS TITLE CO NC	12,462	$2.18M	0.48%	+1,830	Timeline
CASYCASEYS GEN STORES INC	11,147	$2.17M	0.48%	-3,620	Timeline
WKCWORLD KINECT CORPORATION	67,923	$2.15M	0.48%	+175	Timeline
HZOMARINEMAX INC	44,110	$2.15M	0.47%	0	Timeline
MLIMUELLER INDS INC	49,342	$2.14M	0.47%	-23,270	Timeline
MHOM/I HOMES INC	35,774	$2.1M	0.46%	-68,020	Timeline
PRIPRIMERICA INC	13,682	$2.1M	0.46%	0	Timeline
VSHVISHAY INTERTECHNOLOGY INC	89,398	$2.02M	0.45%	-12,380	Timeline
IEC ELECTRS CORP NEWIEC ELECTRS CORP NEW	191,240	$2.01M	0.44%	0
ONTOONTO INNOVATION INC	27,126	$1.98M	0.44%	-19,020	Timeline
NODKNI HLDGS INC	100,740	$1.92M	0.42%	0	Timeline
NMIHNMI HLDGS INC	84,027	$1.89M	0.42%	-59,368	Timeline
SYBTSTOCK YDS BANCORP INC	37,113	$1.89M	0.42%	-370	Timeline
GICGLOBAL INDUSTRIAL COMPANY	51,083	$1.88M	0.41%	new	Timeline
FAFFIRST AMERN FINL CORP	29,337	$1.83M	0.4%	0	Timeline
ROGROGERS CORP	9,080	$1.82M	0.4%	-4,130	Timeline
THE SHYFT GROUPTHE SHYFT GROUP	47,260	$1.77M	0.39%	-65,480
MITKMITEK SYS INC	90,267	$1.74M	0.38%	-43,300	Timeline
FTS INTERNATIONAL INCFTS INTERNATIONAL INC	55,480	$1.57M	0.35%	new
CTRNCITI TRENDS INC	17,670	$1.54M	0.34%	-4,670	Timeline
GPORGULFPORT ENERGY CORP	18,810	$1.22M	0.27%	new	Timeline
MTRNMATERION CORP	15,890	$1.2M	0.26%	0	Timeline
STERLING BANCORP DELSTERLING BANCORP DEL	41,841	$1.04M	0.23%	-113,680
MLRMILLER INDS INC TENN	12,482	$492K	0.11%	-67,421	Timeline
APAMPCO-PITTSBURG CORP	60,639	$368K	0.08%	+7,349	Timeline
DARDARLING INGREDIENTS INC	3,970	$268K	0.06%	0	Timeline

Sold out in Q2 2021

Positions in the previous quarter's report that this quarter's report no longer lists.

Security	Shares before	Value before	Type
BIGGQBIG LOTS INC.	75,240	$5.14M	shares
SOUTHWESTERN ENERGY COSOUTHWESTERN ENERGY CO	817,270	$3.8M	shares
ATLANTIC PWR CORPATLANTIC PWR CORP	1,132,950	$3.27M	shares
CAI INTERNATIONAL INCCAI INTERNATIONAL INC	68,380	$3.11M	shares
BRYN MAWR BANK CORPORATIONBRYN MAWR BANK CORPORATION	57,341	$2.61M	shares
MOG-AMOOG INC	30,889	$2.57M	shares
THGHANOVER INS GROUP INC	17,790	$2.3M	shares
TPRTAPESTRY INC	45,655	$1.88M	shares
ESNTESSENT GROUP LTD	37,420	$1.78M	shares
CBUCOMMUNITY FINANCIAL SYSTEM I	19,558	$1.5M	shares
M.D.C. HOLDINGS INCM.D.C. HOLDINGS INC	20,787	$1.24M	shares
OSKOSHKOSH CORP	9,792	$1.16M	shares
SYSTEMAX INCSYSTEMAX INC	25,033	$1.03M	shares
HNIHNI CORP	18,480	$731K	shares

How Q2 2021 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

Filing	Role	Amendment	Filed	Accepted	Ingested
13F-HR 0001483339-21-000004	superseded		2021-08-13	acceptance time not in the bulk data set	2026-10-07 18:38:33 UTC
13F-HR/A 0001483339-21-000005	base	new holdings	2021-08-13	acceptance time not in the bulk data set	2026-10-07 18:38:33 UTC