The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 06-30-2022
Check here if Amendment   Amendment Number:
This Amendment (Check only one.):   is a restatement.
  adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: Walthausen & Co., LLC
Address: 2691 ROUTE 9, SUITE 102
MALTA , NY12020
Form 13F File Number: 028-13672

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: Mark Hodge
Title: Chief Compliance Officer
Phone: 518-348-7217
Signature, Place, and Date of Signing:
Mark Hodge Malta , NY 08-12-2022
[Signature] [City, State] [Date]
Report Type (Check only one.):
  13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
  13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
X 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 140
Form 13F Information Table Value Total: 223,147
(thousands)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name

List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name


SEC FORM 13F-HR

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
A10 Networks Inc Com 002121101 1,237 85,990 SH SOLE 85,990 0 0
AAON Inc Com 000360206 1,127 20,580 SH SOLE 20,580 0 0
ABM Industries Inc Com 000957100 1,792 41,278 SH SOLE 41,278 0 0
AZZ Inc Com 002474104 1,623 39,766 SH SOLE 39,766 0 0
Addus Homecare Corp Com 006739106 1,552 18,630 SH SOLE 18,630 0 0
Advansix Inc Com 00773T101 1,744 52,150 SH SOLE 52,150 0 0
Aerojet Rocketdyne Holdings In Com 007800105 1,804 44,440 SH SOLE 44,440 0 0
Alamo Group Incorporated Com 011311107 1,713 14,716 SH SOLE 14,716 0 0
Alico Inc Com 016230104 1,308 36,710 SH SOLE 36,710 0 0
Alight Inc Com 01626W101 1,193 176,670 SH SOLE 176,670 0 0
Allied Motion Technologies Inc Com 019330109 2,205 96,543 SH SOLE 96,543 0 0
Arrow Financial Corp Com 042744102 1,283 40,324 SH SOLE 40,324 0 0
Aviat Networks Inc Com 05366Y201 973 38,850 SH SOLE 38,850 0 0
Axcelis Technologies Inc Com 054540208 2,039 37,174 SH SOLE 37,174 0 0
Baycom Corp. Com 07272M107 1,463 70,740 SH SOLE 70,740 0 0
Beacon Roofing Supply Inc Com 073685109 1,811 35,260 SH SOLE 35,260 0 0
Bowlero Corp Com 10258P102 2,823 266,530 SH SOLE 266,530 0 0
COHU Inc Com 192576106 2,023 72,885 SH SOLE 72,885 0 0
Cambridge Bancorp Com 132152109 1,339 16,190 SH SOLE 16,190 0 0
Camden National Corp Com 133034108 3,629 82,378 SH SOLE 82,378 0 0
Cavco Industries Inc Com 149568107 1,357 6,926 SH SOLE 6,926 0 0
Central Valley Community Banco Com 155685100 699 48,220 SH SOLE 48,220 0 0
Chase Corporation Com 16150R104 1,037 13,330 SH SOLE 13,330 0 0
Chesapeake Energy Corp Com 165167735 2,173 26,790 SH SOLE 26,790 0 0
Chesapeake Utilities Corp Com 165303108 1,569 12,110 SH SOLE 12,110 0 0
Citi Trends Inc Com 17306X102 764 32,310 SH SOLE 32,310 0 0
City Holding Company Com 177835105 2,622 32,818 SH SOLE 32,818 0 0
Cleveland-Cliffs Inc Com 185899101 1,047 68,150 SH SOLE 68,150 0 0
Comfort Systems USA Inc Com 199908104 2,172 26,127 SH SOLE 26,127 0 0
Commercial Metals Co Com 201723103 2,662 80,422 SH SOLE 80,422 0 0
Concentrix Corp. Com 20602D101 1,569 11,568 SH SOLE 11,568 0 0
Cyberoptics Corp Com 232517102 835 23,890 SH SOLE 23,890 0 0
DLH Holdings Corp Com 23335Q100 1,335 87,628 SH SOLE 87,628 0 0
EMCOR Group Inc Com 29084Q100 1,420 13,788 SH SOLE 13,788 0 0
EPR Properties Com 26884U109 1,753 37,360 SH SOLE 37,360 0 0
Earthstone Energy Inc Com 27032D304 1,274 93,340 SH SOLE 93,340 0 0
Eastern Bankshares Inc Com 27627N105 1,491 80,760 SH SOLE 80,760 0 0
Encompass Health Corporation Com 29261A100 839 14,974 SH SOLE 14,974 0 0
Encore Wire Corp Com 292562105 1,814 17,460 SH SOLE 17,460 0 0
Ethan Allen Interiors Inc Com 297602104 975 48,250 SH SOLE 48,250 0 0
Farmers National Banc Corp Com 309627107 1,191 79,390 SH SOLE 79,390 0 0
Federal Agricultural Mortgage Com 313148306 3,149 32,250 SH SOLE 32,250 0 0
Financial Institutions Inc Com 317585404 1,307 50,240 SH SOLE 50,240 0 0
First Bancorp N.C. Com 318910106 2,105 60,326 SH SOLE 60,326 0 0
First Community Corp. Com 319835104 1,393 72,640 SH SOLE 72,640 0 0
First Financial Corp Com 320218100 2,380 53,494 SH SOLE 53,494 0 0
G-III Apparel Group Limited Com 36237H101 739 36,550 SH SOLE 36,550 0 0
Global Medical REIT Inc Com 37954A204 1,369 121,946 SH SOLE 121,946 0 0
Granite Construction Inc Com 387328107 1,134 38,910 SH SOLE 38,910 0 0
Great Lakes Dredge & Dock Corp Com 390607109 3,607 275,138 SH SOLE 275,138 0 0
Great Southern Bancorp Com 390905107 1,412 24,120 SH SOLE 24,120 0 0
Gulfport Energy Corp Com 402635502 2,392 30,085 SH SOLE 30,085 0 0
Hackett Group Inc Com 404609109 2,162 113,950 SH SOLE 113,950 0 0
Haemonetics Corp Com 405024100 1,992 30,566 SH SOLE 30,566 0 0
Hancock Whitney Corporation Com 410120109 1,577 35,570 SH SOLE 35,570 0 0
Hawkins Inc Com 420261109 1,525 42,330 SH SOLE 42,330 0 0
Heartland Financial USA Inc Com 42234Q102 1,451 34,927 SH SOLE 34,927 0 0
Helix Energy Solutions Group Com 42330P107 756 243,710 SH SOLE 243,710 0 0
Helmerich & Payne Inc Com 423452101 1,662 38,600 SH SOLE 38,600 0 0
Heritage Crystal Clean Inc Com 42726M106 3,333 123,615 SH SOLE 123,615 0 0
Holley Inc Com 43538H103 2,100 200,035 SH SOLE 200,035 0 0
Horizon Bancorp Inc Com 440407104 2,094 120,209 SH SOLE 120,209 0 0
Hub Group Inc Com 443320106 1,726 24,330 SH SOLE 24,330 0 0
Ichor Holdings Com G4740B105 852 32,780 SH SOLE 32,780 0 0
Independent Bank Corp Com 453836108 1,749 22,020 SH SOLE 22,020 0 0
Independent Bank Group Inc Com 45384B106 1,571 23,130 SH SOLE 23,130 0 0
Industrial Logistics Propertie Com 456237106 760 53,993 SH SOLE 53,993 0 0
Inogen Inc Com 45780L104 1,135 46,950 SH SOLE 46,950 0 0
Investors Title Company Com 461804106 1,081 6,892 SH SOLE 6,892 0 0
Kimball Electronics Inc Com 49428J109 1,753 87,199 SH SOLE 87,199 0 0
Kirby Corporation Com 497266106 1,906 31,320 SH SOLE 31,320 0 0
Knowles Corp Com 49926D109 1,212 69,922 SH SOLE 69,922 0 0
Kulicke & Soffa Industries Inc Com 501242101 1,063 24,826 SH SOLE 24,826 0 0
LHC Group Inc Com 50187A107 1,361 8,740 SH SOLE 8,740 0 0
LSB Industries Inc Com 502160104 1,050 75,790 SH SOLE 75,790 0 0
LSI Industries Com 50216C108 1,388 224,966 SH SOLE 224,966 0 0
Lakeland Financial Corp Com 511656100 1,467 22,085 SH SOLE 22,085 0 0
Marinemax Inc Com 567908108 785 21,720 SH SOLE 21,720 0 0
Mastercraft Boat Holdings Inc Com 57637H103 984 46,740 SH SOLE 46,740 0 0
Materion Corp Com 576690101 2,120 28,750 SH SOLE 28,750 0 0
Maximus Inc Com 577933104 1,311 20,966 SH SOLE 20,966 0 0
McGrath Rentcorp Com 580589109 1,588 20,892 SH SOLE 20,892 0 0
Mercer Int'l Inc Com 588056101 3,426 260,568 SH SOLE 260,568 0 0
Mercury System Inc Com 589378108 1,317 20,470 SH SOLE 20,470 0 0
Merit Medical Systems Inc Com 589889104 1,277 23,537 SH SOLE 23,537 0 0
Methode Electronics Inc Com 591520200 2,012 54,330 SH SOLE 54,330 0 0
Monro Muffler Brake Inc Com 610236101 2,156 50,273 SH SOLE 50,273 0 0
Mueller Industries Inc Com 624756102 1,408 26,422 SH SOLE 26,422 0 0
NBT Bancorp Inc Com 628778102 2,589 68,879 SH SOLE 68,879 0 0
NMI Holdings Inc Com 629209305 843 50,649 SH SOLE 50,649 0 0
Newpark Resources Inc Com 651718504 1,193 386,160 SH SOLE 386,160 0 0
Northern Oil and Gas Inc Com 665531307 602 23,820 SH SOLE 23,820 0 0
Nuvasive Inc Com 670704105 1,969 40,046 SH SOLE 40,046 0 0
OSI Systems Inc Com 671044105 2,106 24,649 SH SOLE 24,649 0 0
Oceaneering International Inc Com 675232102 1,763 165,076 SH SOLE 165,076 0 0
Oceanfirst Financial Corp Com 675234108 2,136 111,642 SH SOLE 111,642 0 0
Onto Innovation Inc Com 683344105 1,346 19,296 SH SOLE 19,296 0 0
Orion Engineered Carbons Com L72967109 1,942 125,052 SH SOLE 125,052 0 0
Pacwest Bancorp Com 695263103 1,037 38,908 SH SOLE 38,908 0 0
Photonics Inc Com 719405102 1,810 92,910 SH SOLE 92,910 0 0
Plumas Bancorp Com 729273102 1,238 43,390 SH SOLE 43,390 0 0
Plymouth Industrial Reit Inc Com 729640102 718 40,920 SH SOLE 40,920 0 0
Preformed Line Products Co Com 740444104 1,359 22,100 SH SOLE 22,100 0 0
Propetro Holding Corp Com 74347M108 2,200 220,040 SH SOLE 220,040 0 0
QCR Holdings Inc Com 74727A104 1,701 31,500 SH SOLE 31,500 0 0
Radiant Logistics Inc Com 75025X100 1,486 200,330 SH SOLE 200,330 0 0
Red River Bancshares Inc Com 75686R202 1,313 24,270 SH SOLE 24,270 0 0
Richardson Electronics Ltd Com 763165107 1,687 115,058 SH SOLE 115,058 0 0
Ryder System Inc Com 783549108 1,706 24,010 SH SOLE 24,010 0 0
Seaboard Corp Com 811543107 1,786 460 SH SOLE 460 0 0
Seacoast Bank Corp of Florida Com 811707801 2,429 73,510 SH SOLE 73,510 0 0
Sharps Compliance Corp Com 820017101 579 198,360 SH SOLE 198,360 0 0
Shoe Carnival Inc Com 824889109 880 40,700 SH SOLE 40,700 0 0
Sierra Bancorp Com 82620P102 1,096 50,460 SH SOLE 50,460 0 0
Signet Jewelers Limited Com G81276100 818 15,305 SH SOLE 15,305 0 0
Skyline Champion Corp Com 830830105 1,845 38,918 SH SOLE 38,918 0 0
Smartfinancial Inc Com 83190L208 1,544 63,895 SH SOLE 63,895 0 0
Sterling Infrastructure Inc Com 859241101 1,225 55,890 SH SOLE 55,890 0 0
Stewart Information Services C Com 860372101 613 12,331 SH SOLE 12,331 0 0
Tennant Company Com 880345103 1,956 33,020 SH SOLE 33,020 0 0
Textainer Group Holdings Ltd Com G8766E109 829 30,245 SH SOLE 30,245 0 0
The Marcus Corp Com 566330106 1,362 92,240 SH SOLE 92,240 0 0
Thermon Group Holdings Inc Com 88362T103 1,927 137,132 SH SOLE 137,132 0 0
Titan International Inc Com 88830M102 1,496 99,070 SH SOLE 99,070 0 0
Titan Machinery Inc Com 88830R101 2,513 112,137 SH SOLE 112,137 0 0
Trico Bancshares Com 896095106 2,501 54,803 SH SOLE 54,803 0 0
Trimas Corp. Com 896215209 1,668 60,250 SH SOLE 60,250 0 0
Triumph Bancorp Inc Com 89679E300 897 14,332 SH SOLE 14,332 0 0
UMH Properties Inc Com 903002103 1,855 105,019 SH SOLE 105,019 0 0
Universal Technical Institute Com 913915104 1,726 242,040 SH SOLE 242,040 0 0
VSE Corp Com 918284100 1,807 48,091 SH SOLE 48,091 0 0
Valvoline Inc Com 92047W101 1,543 53,520 SH SOLE 53,520 0 0
Vectrus Inc Com 92242T101 1,017 30,390 SH SOLE 30,390 0 0
Vishay Precision Group Inc Com 92835K103 2,105 72,279 SH SOLE 72,279 0 0
Vista Outdoor Inc Com 928377100 935 33,520 SH SOLE 33,520 0 0
WSFS Financial Corp Com 929328102 1,410 35,183 SH SOLE 35,183 0 0
Washington Trust Bancorp Inc Com 940610108 2,249 46,495 SH SOLE 46,495 0 0
Webster Financial Corp Com 947890109 1,311 31,110 SH SOLE 31,110 0 0
Wesbanco Inc Com 950810101 1,623 51,170 SH SOLE 51,170 0 0
Willdan Group Inc Com 96924N100 1,481 53,686 SH SOLE 53,686 0 0