Exhibit 4.1

COMMON STOCK COMMON STOCK sessRii^ Ujp°9©£y : ‘ilfAPOG enterprises, inc. : 1 SEE REVERSE SIDE : ;I FOR CERTAIN DEFINITIONS I:. ;B i INCORPORATED UNDER THE LAWS OF THE STATE OF MINNESOTA I 1CUSIP037598109 i. ] ![ THIS CERTIFIES THAT”. PEC1EN v>J% if-; X (/ 3 <8’”if.-* t ; is the owner of : FULLY PAID AND NON-ASSESSABLE COMMON SHARES, $0.33^ PER SHARE PAR VALUE, OF f o | : : APOGEE ENTERPRISES transferable on the books of the Corporation by the holder hereof in person or by duly authorized attorney upon surrender of this VJ -K» : s’i certificate properly endorsed. This certificate is not valid unless countersigned by the Transfer Agent and Registrar: WITNESS the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. SECRSTARY TtaSsS CHIEF EXECUTIVE OFFICER m sh ;AiJ£KTOAN F^NANCJAt FK?X1^NG !NCOEri>BATKi; - .YHTVNSAKJUS

THE BOARD OF THIS CORPORATION HAS THE AUTHORITY TO CREATE AND DETERMINE THE RELATIVE RIGHTS AND PREFERENCES OF CLASSES OR SERIES OF SHARES OF CAPITAL STOCK OTHER THAN COMMON STOCK. THIS CORPORATION WILL FURNISH TO ANY SHAREHOLDER UPON WRITTEN REQUEST SENT TO ITS PRINCIPAL EXECUTIVE OFFICES, AND WITHOUT CHARGE, A FULL STATEMENT OF THE BOARD’S AUTHORITY TO CREATE AND DETERMINE THE RELATIVE RIGHTS AND PREFERENCES OF CLASSES OR SERIES OF SHARES OF CAPITAL STOCK AS WELL AS THE DESIGNATIONS, PREFERENCES, LIMITATIONS AND RELATIVE RIGHTS OF THE SHARES OF EACH CLASS OR SERIES THEN OUTSTANDING OR AUTHORIZED TO BE ISSUED. The following abbreviations, whan used in the inscription on the face of this certificate, sha:l be construed as though they were written out in full according to applicable laws or regulations: TEN COM - as tenants in common UTMA ’odian (Cust) (Minor) TEN ENT - as tenants by entireties under Uniform Transfers to Minors JTTEN - as joint tenants with right of survivorship Act and not as tenants in common (State) Additional abbreviations may also be used though not in ‘above list. &&/’ oa/tte /’cccioed Ae/ie6y-sell, a&u^n-’, andfrwut/e/1-un£o- PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE I 1 TYpEWR|TE NAME AND AODRESs INCLUDINCTZIP CODE OF ASSIGNEE) tj/m/w of fries ca/jf£al stocA- /ia&/te&es?.£ea- ou- me,< uM’mm,- (je.rt(/ica£e, and do-Ae/ie/sy> f/Teooca.6^ ca/i<?f.i£a£e< a/id/afifi-oin£^ ^/u.fo/we// <,_y to- £ra/M/?ji fAe s.atdxfocA o/t< t/te boohs, of/Ae tvit/tin -na/f/ed (..y ^ c.y (JMfioratio/t tvt^^i^’jb&w&^(^&6il>$ti{;u£io-n ifi- /A&fi/iem(xex. 0ated XX_ _ NOTICE: WE SIGNATURE TO THfS ASSGNMUjr MU«T COf^.eSPONO WITH THE KAME AS \W(TTCW Uf-OM THE FAC;e OFTHECERTffTCATC IN EVERY P/WlCUAfi WTFUOl/TftLTERATiON OR ENlARGeMEWOrt Af>;VCH^MG^ WMA7B/ER SIGNATURE GUARANTEED ALL CUARAMTEES MUST BE MADE BY A FINANCIAL INSTmjTiO(4 (SUCH AS A BANK OR BROKER] WHICH iS A PARTICIPANT IN THE SEClJRiTlES TRANSFER AGENTS MEDALLION PROGRAM (‘STAMP’}. THE N£W YORK STOCK EXCf4ANG£. INC. MEDALLION SIGNATURE PROGRAM 1HMSP”). Oft THF STOCK FXCHANGKS MEDALLION PROGRAM (“SEMP”) AND MUST NOT BE DATED. GUARANTEeS BY A (OTARY PUSUC ARE NOT ACCtPTABLE.