ALLEGRO MICROSYSTEMS INC (ALGM) Stock Ownership

NASDAQ:ALGM • US01749D1054

36.47 USD
-0.3 (-0.82%)
At close: Feb 27, 2026
36.47 USD
0 (0%)
After Hours: 2/27/2026, 8:00:00 PM
Overview Stock Chart Technical Analysis Fundamental Analysis Analyst Ratings Earnings Estimates Financials Ownership News
ALGM Ownership Chart.ALGM Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ALGM Ownership.InsiderInstitutionalPublic



Shares Outstanding185.29M
Float123.64M
Float Short Interest Percentage10%
Owners (insider)0.65%
Owners (institutional)75.11%
Owners (insider) change0.01%
Owners (institutional) change-1.6%
ALGM Institutional Ownership HistoryALGM Institutional Ownership HistoryALGM Institutional Ownership History Dec 2021 Jun 2022 Dec 2022 Jun 2023 Dec 2023 Jun 2024 Dec 2024 Jun 2025 Dec 2025 50M 100M 150M
ALGM Historical Insider Transactions ChartALGM Historical Insider Buy and Sell Transactions ChartALGM Historical Insider Transactions Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 0 100K 200K
Date Name Type Shares Price Amount
Feb 17, 2026 Briansky Sharon Open Market Sale 9258 41.56 $ 384,762.48
Feb 13, 2026 Briansky Sharon Option Excercise 8991 42.38 $ 381,038.58
Feb 13, 2026 D''Antilio Derek Option Excercise 17808 42.38 $ 754,703.04
Dec 10, 2025 Briansky Sharon Open Market Sale 27873 30.00 $ 836,190.00
Nov 11, 2025 Coleman Troy Grant 73530 0.00 $ 0.00
Aug 22, 2025 Webster Roald Graham Open Market Sale 8266 32.81 $ 271,192.58
Aug 12, 2025 Lury Richard R. Open Market Sale 7000 31.81 $ 222,672.80
Aug 7, 2025 MARTIN JOSEPH R Grant 5932 0.00 $ 0.00
Aug 7, 2025 PUMA MARY G Grant 5932 0.00 $ 0.00
Aug 7, 2025 Suzuki Yoshihiro Grant 5932 0.00 $ 0.00
Aug 7, 2025 Palepu Krishna G. Grant 5932 0.00 $ 0.00
Aug 7, 2025 Raubacher Jennie Grant 5932 0.00 $ 0.00
Aug 7, 2025 Lynch Susan D Grant 5932 0.00 $ 0.00
Aug 7, 2025 Lury Richard R. Grant 5932 0.00 $ 0.00
Aug 4, 2025 Hagen Erin Open Market Sale 5043 31.18 $ 157,240.74
Jun 11, 2025 Lury Richard R. Open Market Sale 3100 30.45 $ 94,395.00
Jun 4, 2025 Lury Richard R. Open Market Sale 6849 27.60 $ 189,035.82
May 16, 2025 Doogue Michael Option Excercise 21730 27.51 $ 597,792.30
May 16, 2025 Webster Roald Graham Option Excercise 4948 27.51 $ 136,119.48
May 16, 2025 Briansky Sharon Option Excercise 18712 27.51 $ 514,767.12
May 16, 2025 D''Antilio Derek Option Excercise 29911 27.51 $ 822,851.61
May 16, 2025 Hagen Erin Option Excercise 4899 27.51 $ 134,771.49
May 15, 2025 Madormo Richard Grant 37557 0.00 $ 0.00
May 15, 2025 Hagen Erin Grant 18153 0.00 $ 0.00
May 15, 2025 Doogue Michael Grant 150226 0.00 $ 0.00
May 15, 2025 Webster Roald Graham Grant 9765 0.00 $ 0.00
May 15, 2025 Briansky Sharon Grant 35053 0.00 $ 0.00
May 15, 2025 D''Antilio Derek Grant 65098 0.00 $ 0.00
May 13, 2025 Doogue Michael Grant 18489 0.00 $ 0.00
May 13, 2025 Hagen Erin Grant 1222 0.00 $ 0.00
May 13, 2025 Briansky Sharon Grant 14656 0.00 $ 0.00
May 13, 2025 Webster Roald Graham Grant 1002 0.00 $ 0.00
May 13, 2025 D''Antilio Derek Grant 21295 0.00 $ 0.00