MAYVILLE ENGR CO INC

Institution	Shares	Value ($000)
EVR Research LP	605,000	$11,326
Worth Venture Partners, LLC	13,735	$257
Portolan Capital Management, LLC	512,762	$9,599
FORMULA GROWTH LTD	40,000	$749
Rothschild Wealth LLC	30,000	$562
KENNEDY CAPITAL MANAGEMENT LLC	104,345	$1,953
SILVERCREST ASSET MANAGEMENT GROUP LLC	179,941	$3,368
JOURNEY STRATEGIC WEALTH LLC	29,185	$546
XTX Topco Ltd	21,334	$399
Johnson Financial Group, Inc.	16,475	$308
SummitTX Capital, L.P.	15,118	$283
MILLENNIUM MANAGEMENT LLC	153,200	$2,868
Quantbot Technologies LP	7,827	$147
CITADEL ADVISORS LLC	103,463	$1,937
BOOTHBAY FUND MANAGEMENT, LLC	12,160	$228
D. E. Shaw & Co., Inc.	19,416	$363
PICTON MAHONEY ASSET MANAGEMENT	5,800	$109
Aquatic Capital Management LLC	4,383	$82
DEUTSCHE BANK AG\	8,249	$154
Quarry LP	659	$12

Increased Positions (32)

22NW, LP

Value ($000) $7,755 (+40.9%) Shares 414,280 (+3.6%)

CenterBook Partners LP

Value ($000) $4,788 (+95.9%) Shares 255,791 (+44.0%)

BLAIR WILLIAM & CO/IL

Value ($000) $10,928 (+110.5%) Shares 583,759 (+54.8%)

ROYCE & ASSOCIATES LP

Value ($000) $11,687 (+49.9%) Shares 624,307 (+10.2%)

ANCHOR CAPITAL ADVISORS LLC

Value ($000) $2,028 (+47.7%) Shares 108,318 (+8.6%)

MORGAN STANLEY

Value ($000) $1,542 (+220.2%) Shares 82,390 (+135.4%)

UBS Group AG

Value ($000) $2,743 (+88.5%) Shares 146,552 (+38.6%)

Nuveen, LLC

Value ($000) $1,640 (+141.5%) Shares 87,587 (+77.5%)

SEI INVESTMENTS CO

Value ($000) $1,564 (+105.5%) Shares 83,569 (+51.1%)

JANE STREET GROUP, LLC

Value ($000) $994 (+285.5%) Shares 53,074 (+183.4%)

Boston Partners

Value ($000) $4,170 (+52.9%) Shares 222,730 (+12.4%)

DIMENSIONAL FUND ADVISORS LP

Value ($000) $16,422 (+40.9%) Shares 877,175 (+3.5%)

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Value ($000) $5,400 (+46.1%) Shares 288,450 (+7.4%)

AlphaQuest LLC

Value ($000) $205 (+78.6%) Shares 10,954 (+31.3%)

RAYMOND JAMES FINANCIAL INC

Value ($000) $724 (+108.9%) Shares 38,672 (+53.5%)

STATE STREET CORP

Value ($000) $5,335 (+41.0%) Shares 285,000 (+3.7%)

BANK OF AMERICA CORP /DE/

Value ($000) $4,098 (+42.5%) Shares 218,888 (+4.7%)

WELLS FARGO & COMPANY/MN

Value ($000) $421 (+83.0%) Shares 22,491 (+34.5%)

STATE OF WISCONSIN INVESTMENT BOARD

Value ($000) $762 (+54.7%) Shares 40,697 (+13.7%)

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Value ($000) $813 (+51.1%) Shares 43,455 (+11.1%)

Institution	Prev Shares	Curr Shares	Change
22NW, LP	399,890	414,280	+14,390 (+3.6%)
CenterBook Partners LP	177,659	255,791	+78,132 (+44.0%)
BLAIR WILLIAM & CO/IL	377,210	583,759	+206,549 (+54.8%)
ROYCE & ASSOCIATES LP	566,717	624,307	+57,590 (+10.2%)
ANCHOR CAPITAL ADVISORS LLC	99,775	108,318	+8,543 (+8.6%)
MORGAN STANLEY	35,001	82,390	+47,389 (+135.4%)
UBS Group AG	105,754	146,552	+40,798 (+38.6%)
Nuveen, LLC	49,337	87,587	+38,250 (+77.5%)
SEI INVESTMENTS CO	55,314	83,569	+28,255 (+51.1%)
JANE STREET GROUP, LLC	18,730	53,074	+34,344 (+183.4%)
Boston Partners	198,160	222,730	+24,570 (+12.4%)
DIMENSIONAL FUND ADVISORS LP	847,123	877,175	+30,052 (+3.5%)
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	268,635	288,450	+19,815 (+7.4%)
AlphaQuest LLC	8,342	10,954	+2,612 (+31.3%)
RAYMOND JAMES FINANCIAL INC	25,187	38,672	+13,485 (+53.5%)
STATE STREET CORP	274,936	285,000	+10,064 (+3.7%)
BANK OF AMERICA CORP /DE/	208,975	218,888	+9,913 (+4.7%)
WELLS FARGO & COMPANY/MN	16,723	22,491	+5,768 (+34.5%)
STATE OF WISCONSIN INVESTMENT BOARD	35,797	40,697	+4,900 (+13.7%)
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	39,131	43,455	+4,324 (+11.1%)

Decreased Positions (41)

Roubaix Capital, LLC

Value ($000) $2,739 (-6.4%) Shares 146,297 (-31.2%)

TOCQUEVILLE ASSET MANAGEMENT L.P.

Value ($000) $1,331 (-81.4%) Shares 71,100 (-86.4%)

Granahan Investment Management, LLC

Value ($000) $5,013 (+4.3%) Shares 267,762 (-23.3%)

Ancora Advisors LLC

Value ($000) $2,359 (-24.9%) Shares 126,030 (-44.8%)

Allspring Global Investments Holdings, LLC

Value ($000) $38,897 (+18.3%) Shares 2,052,613 (-14.9%)

JACOBS LEVY EQUITY MANAGEMENT, INC

Value ($000) $597 (-74.5%) Shares 31,868 (-81.3%)

RENAISSANCE TECHNOLOGIES LLC

Value ($000) $1,333 (-37.5%) Shares 71,200 (-54.1%)

VANGUARD GROUP INC

Value ($000) $11,750 (-2.0%) Shares 627,655 (-28.0%)

BRIDGEWAY CAPITAL MANAGEMENT, LLC

Value ($000) $4,248 (+30.5%) Shares 226,926 (-4.1%)

AMERICAN CENTURY COMPANIES INC

Value ($000) $5,257 (+4.7%) Shares 280,840 (-23.0%)

Avior Wealth Management, LLC

Value ($000) $279 (-11.4%) Shares 14,919 (-34.9%)

ExodusPoint Capital Management, LP

Value ($000) $212 (-40.9%) Shares 11,316 (-56.5%)

BlackRock, Inc.

Value ($000) $16,204 (+28.7%) Shares 865,619 (-5.4%)

AMERIPRISE FINANCIAL INC

Value ($000) $6,568 (+21.1%) Shares 350,844 (-11.0%)

AQR CAPITAL MANAGEMENT LLC

Value ($000) $597 (-27.1%) Shares 31,908 (-46.4%)

PANAGORA ASSET MANAGEMENT INC

Value ($000) $1,022 (+8.6%) Shares 54,594 (-20.2%)

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO

Value ($000) $41 (-82.2%) Shares 2,189 (-86.9%)

NORTHERN TRUST CORP

Value ($000) $1,767 (+17.5%) Shares 94,368 (-13.6%)

FRANKLIN RESOURCES INC

Value ($000) $252 (-34.1%) Shares 13,458 (-51.6%)

GEODE CAPITAL MANAGEMENT, LLC

Value ($000) $6,159 (+33.6%) Shares 328,921 (-1.8%)

Institution	Prev Shares	Curr Shares	Change
Roubaix Capital, LLC	212,688	146,297	-66,391 (-31.2%)
TOCQUEVILLE ASSET MANAGEMENT L.P.	521,100	71,100	-450,000 (-86.4%)
Granahan Investment Management, LLC	349,267	267,762	-81,505 (-23.3%)
Ancora Advisors LLC	228,300	126,030	-102,270 (-44.8%)
Allspring Global Investments Holdings, LLC	2,411,103	2,052,613	-358,490 (-14.9%)
JACOBS LEVY EQUITY MANAGEMENT, INC	170,335	31,868	-138,467 (-81.3%)
RENAISSANCE TECHNOLOGIES LLC	155,000	71,200	-83,800 (-54.1%)
VANGUARD GROUP INC	871,659	627,655	-244,004 (-28.0%)
BRIDGEWAY CAPITAL MANAGEMENT, LLC	236,548	226,926	-9,622 (-4.1%)
AMERICAN CENTURY COMPANIES INC	364,794	280,840	-83,954 (-23.0%)
Avior Wealth Management, LLC	22,919	14,919	-8,000 (-34.9%)
ExodusPoint Capital Management, LP	26,039	11,316	-14,723 (-56.5%)
BlackRock, Inc.	914,839	865,619	-49,220 (-5.4%)
AMERIPRISE FINANCIAL INC	394,161	350,844	-43,317 (-11.0%)
AQR CAPITAL MANAGEMENT LLC	59,540	31,908	-27,632 (-46.4%)
PANAGORA ASSET MANAGEMENT INC	68,372	54,594	-13,778 (-20.2%)
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	16,689	2,189	-14,500 (-86.9%)
NORTHERN TRUST CORP	109,230	94,368	-14,862 (-13.6%)
FRANKLIN RESOURCES INC	27,778	13,458	-14,320 (-51.6%)
GEODE CAPITAL MANAGEMENT, LLC	334,873	328,921	-5,952 (-1.8%)

Exited Positions (12)

GLOBEFLEX CAPITAL L P

Value ($000) $1,603 Shares 116,468

EntryPoint Capital, LLC

Value ($000) $332 Shares 24,098

Empowered Funds, LLC

Value ($000) $1,677 Shares 121,880

State of Wyoming

Value ($000) $169 Shares 12,315

MARTINGALE ASSET MANAGEMENT L P

Value ($000) $490 Shares 35,610

nVerses Capital, LLC

Value ($000) $15 Shares 700

STRS OHIO

Value ($000) $307 Shares 22,300

VICTORY CAPITAL MANAGEMENT INC

Value ($000) $368 Shares 26,731

PRUDENTIAL FINANCIAL INC

Value ($000) $262 Shares 19,025

Advisory Services Network, LLC

Value ($000) $3 Shares 210

CIBC Private Wealth Group, LLC

Value ($000) $1 Shares 80

NEW YORK STATE TEACHERS RETIREMENT SYSTEM

Value ($000) $0 Shares 1,287

Institution	Prev Shares	Prev Value ($000)
GLOBEFLEX CAPITAL L P	116,468	$1,603
EntryPoint Capital, LLC	24,098	$332
Empowered Funds, LLC	121,880	$1,677
State of Wyoming	12,315	$169
MARTINGALE ASSET MANAGEMENT L P	35,610	$490
nVerses Capital, LLC	700	$15
STRS OHIO	22,300	$307
VICTORY CAPITAL MANAGEMENT INC	26,731	$368
PRUDENTIAL FINANCIAL INC	19,025	$262
Advisory Services Network, LLC	210	$3
CIBC Private Wealth Group, LLC	80	$1
NEW YORK STATE TEACHERS RETIREMENT SYSTEM	1,287	$0