<img src="https://ml-eu.globenewswire.com/Resource/Download/45221009-18e0-4fca-9124-e5b9d6f5f533?size=2" nborder="0" align="left" hspace="5" vspace="5" title="LECTRA" alt="LECTRA"/>Share buyback program Aggregated disclosure of transactions in own shares carried out from May 25 to May 29, 2026 Paris, June 1st, 2026, Pursuant to the authorization granted by the Combined Shareholders’ Meeting held on April 29, 2026, to operate on its shares and in accordance with the regulations relating to share buybacks, Lectra SA (LEI: 9695000KWQEBUDT6IO19) announces below the transactions in its own shares (LSS - FR0000065484) carried out from May 25 to May 29, 2026: <table style="border-collapse: collapse; width:459pt; border-collapse:collapse ;"><tr><td style="width:66px;;text-align: center ; vertical-align: middle; text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; text-align: center ; vertical-align: middle; ">Issuer Name</td><td style="width:90px;;text-align: center ; vertical-align: middle; text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; text-align: center ; vertical-align: middle; ">Transaction Date</td><td style="width:120px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; ">Financial Instrument Identifier Code</td><td style="width:120px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; ">Total Daily Volume (number of shares)</td><td style="width:132px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; ">Daily Volume Weighted Average Acquisition Price (€)</td><td style="width:84px;;text-align: center ; vertical-align: middle; text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; text-align: center ; vertical-align: middle; ">Market (MIC Code)</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/25/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">5,445</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.7728</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">XPAR</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/25/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">448</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.7981</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">TQEX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/25/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">1,102</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.7791</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">AQEU</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/25/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">4,293</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.7646</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">CEUX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/26/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">14,988</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.6986</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">XPAR</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/26/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">9,801</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.7086</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">CEUX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/26/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">1,584</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.6849</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">AQEU</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/26/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">1,080</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.6879</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">TQEX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/272026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">14,707</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.8469</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">XPAR</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/272026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">7,761</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.8039</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">CEUX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/272026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">1,553</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.7803</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">AQEU</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/272026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">1,083</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.7980</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">TQEX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/28/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">15,032</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.6497</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">XPAR</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/28/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">9,757</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.6475</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">CEUX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/28/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">1,643</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.6321</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">AQEU</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/28/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">1,030</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">16.6313</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">TQEX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/29/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">6,270</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">17.1716</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">XPAR</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/29/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">3,255</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">17.2056</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">CEUX</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/29/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">697</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">17.2666</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">AQEU</td></tr><tr><td style="width:66px;;text-align: center ; vertical-align: middle; ">LECTRA</td><td style="width:90px;;text-align: center ; vertical-align: middle; ">05/29/2026</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">FR0000065484</td><td style="width:120px;;text-align: center ; vertical-align: middle; ">704</td><td style="width:132px;;text-align: center ; vertical-align: middle; ">17.3118</td><td style="width:84px;;text-align: center ; vertical-align: middle; ">TQEX</td></tr><tr><td style="width:66px;;border-top: solid black 1pt ; border-bottom: solid black 1pt ; "> </td><td style="width:90px;;border-top: solid black 1pt ; border-bottom: solid black 1pt ; "> </td><td style="width:120px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; ">TOTAL</td><td style="width:120px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; ">102,233</td><td style="width:132px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-bottom: solid black 1pt ; ">16.7783</td><td style="width:84px;;border-top: solid black 1pt ; border-bottom: solid black 1pt ; "> </td></tr></table> <table style="border-collapse: collapse; width:470.65pt; border-collapse:collapse ;"><tr><td style="width:627.54px;;text-align: justify ; vertical-align: middle; text-align: justify ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: top ; text-align: justify ; vertical-align: middle; ">About Lectra At the forefront of innovation since its founding in 1973, Lectra provides industrial intelligence technology solutions - combining software in SaaS mode, cutting equipment, data, and associated services - to players in the fashion, automotive and furniture industries. Lectra accelerates the transformation and success of its customers in a world in perpetual motion thanks to the key technologies of Industry 4.0: AI, big data, cloud and the Internet of Things. The Group is present in more than one hundred countries. The production sites for its cutting equipment are located in France, China and the United States. Lectra's 2,800 employees are driven by three core values: being open-minded thinkers, trusted partners and passionate innovators. They all share the same concern for social responsibility, which is one of the pillars of Lectra's strategy to ensure its sustainable growth and that of its customers. Lectra reported revenues of €507 million in 2025, including €89 million in SaaS revenues. The Company is listed on Euronext, and is included in the CAC All Shares, CAC Technology, EN Tech Leaders and ENT PEA-PME 150 indices.  For more information, visit <a href="https://www.globenewswire.com/Tracker?data=9g-LQAkvODbCNZRtjyWttD4y7aAjmgLHxCqRQkf5UVXolLlP9CZjKVtiUOLe8Qm-xp--vATCAT3TLxGHRJaRNA==" rel="nofollow" target="_blank" title="">lectra.com</a>.</td></tr></table> Lectra – World Headquarters: 16–18, rue Chalgrin • 75016 Paris • France Tel. +33 (0)1 53 64 42 00 – lectra.com A French Société Anonyme with share capital of €38,063,263. RCS Paris B 300 702 305 
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LECTRA: Share buyback program - Aggregated disclosure of transactions in own shares carried out from May 25 to May 29, 2026

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