MarketPeel
Insider Trading Intelligence
SB

Sharon Briansky

ALGM
SVP, GC AND SECRETARY · ALLEGRO MICROSYSTEMS, INC. · CIK 0001897651
FILING MIX · LIFETIME48%/52%
BUYS
13
SELLS
14
TOTAL VALUE
$6.15M
COMPANIES
1
ACTIVE SINCE
Feb 2022
HOLDINGS NOW
79,753
AVG SELL PX
$35.81
TRADE KIND
SHOWING 27 / 27
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 13 pending
Forward-return performance of every backtestable P/S trade by Sharon Briansky, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d4+100.00%-11.02%-0.62%-10.40%-9.79%
14d4+100.00%-10.98%-0.83%-12.13%-11.71%
30d4+75.00%-7.90%-1.82%-6.08%-3.89%
60d4(1 pending)+33.33%+24.42%+3.31%+21.12%+28.87%
90d4(1 pending)+33.33%+14.43%+3.60%+2.63%+2.63%
180d4(3 pending)+0.00%+58.49%+7.25%+51.24%+51.24%
1y4(4 pending)
2y4(4 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ALGM · 79,753 shares · as of May 16, 2026
041,96283,924125,886167,8482023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 13 buys / 14 sellsCOVERAGE · 18 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
13,942$43.10$600.9K79,753May 16, 2026May 19, 2026View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
15,85291,084May 13, 2026May 15, 2026View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
2,61193,695May 13, 2026May 15, 2026View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
8,948$47.54$425.4K75,232May 11, 2026May 13, 2026View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
9,727$35.00$340.4K84,180Mar 2, 2026Mar 3, 2026View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
9,107$36.47$332.1K93,907Feb 27, 2026Mar 3, 2026View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
9,258$41.56$384.8K103,014Feb 17, 2026Feb 18, 2026View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
8,991$42.38$381.0K112,272Feb 13, 2026Feb 18, 2026View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
27,873$30.00$836.2K121,263Dec 10, 2025Dec 12, 2025View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
18,712$27.51$514.8K149,136May 16, 2025May 19, 2025View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
35,053167,848May 15, 2025May 19, 2025View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
14,656132,795May 13, 2025May 14, 2025View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
18,834118,139Feb 27, 2025Mar 3, 2025View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
17,24899,305Jun 11, 2024Jun 13, 2024View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
1,929$29.27$56.5K82,057Jun 3, 2024Jun 4, 2024View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
7,773$29.75$231.2K83,986May 16, 2024May 17, 2024View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
8,03491,759May 15, 2024May 17, 2024View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
5,469$30.34$165.9K83,725Feb 13, 2024Feb 15, 2024View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
5,784$39.48$228.4K89,194Jun 3, 2023Jun 6, 2023View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
4,723$38.14$180.1K94,978May 16, 2023May 17, 2023View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
11,60199,701May 15, 2023May 17, 2023View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
17,03688,100May 12, 2023May 16, 2023View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
SALE
SVP, GC and Secretary
7,374$43.68$322.1K71,064Feb 13, 2023Feb 14, 2023View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
18,249$41.10$750.0K78,438Feb 2, 2023Feb 6, 2023View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
15,949$25.08$400.0K60,189Jun 3, 2022Jun 6, 2022View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
17,03644,240May 16, 2022May 18, 2022View →
ALGM
ALLEGRO MICROSYSTEMS, INC.
PURCHASEGRANT
Stock grant
27,20427,204Feb 3, 2022Feb 7, 2022View →
Other insiders · ALGM
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About this filer
CIK 0001897651
ROLE
SVP, GC and Secretary
PRIMARY
ALGM
COMPANIES
1
ACTIVE SINCE
Feb 2022
MARKETPEEL · /INSIDER/0001897651DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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