SEC Insider Transactions from Webster Roald Graham.

Last updated: 2026-03-14 11:32 UTC | Total transactions: 10

Webster Roald Graham, VP and Chief Accounting Officer at Allegro MicroSystems ($ALGM), sold shares once on the open market in the last 365 days for a total of $271 thousand. His most recent sale occurred on August 22, 2025. These $ALGM insider sales rank 7,784th among 11,678 individual insiders, where the average sale totals $8.6 million across about 6.4 transactions. Graham made no open market purchases during this period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Aug. 22, 2025 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham VP, Chief Accounting Officer S Common Stock 8266 $32.81 17,300.0000 187,707,391 32.33% 0.00%
May 15, 2025 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham VP, Chief Accounting Officer A Common Stock 9765 $0.00 30,514.0000 187,707,391 47.06% 0.01%
May 16, 2025 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham VP, Chief Accounting Officer F Common Stock 4948 $27.51 25,566.0000 187,707,391 16.22% 0.00%
May 13, 2025 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham VP, Chief Accounting Officer A Common Stock 1002 $0.00 20,749.0000 187,707,391 5.07% 0.00%
June 11, 2024 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham SVP, CAO A Common Stock 5520 $0.00 19,747.0000 194,674,352 38.80% 0.00%
May 15, 2024 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham SVP, CAO A Common Stock 5017 $0.00 17,340.0000 194,674,352 40.71% 0.00%
May 15, 2024 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham SVP, CAO A Common Stock 787 $0.00 12,323.0000 194,674,352 6.82% 0.00%
May 16, 2024 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham SVP, CAO F Common Stock 3113 $29.75 14,227.0000 194,674,352 17.95% 0.00%
May 15, 2023 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham VP, Chief Accounting Officer A Common Stock 3626 $0.00 3,626.0000 193,688,102 9999.99% 0.00%
May 15, 2023 ALLEGRO MICROSYSTEMS, INC. $ALGM Webster Roald Graham VP, Chief Accounting Officer A Common Stock 7910 $0.00 11,536.0000 193,688,102 218.15% 0.00%