8-K - ALLEGRO MICROSYSTEMS, INC. (0000866291) (Filer)
Published . Updated .
8-K - ALLEGRO MICROSYSTEMS filed an 8-K with the SEC on Oct 29 (a notice of a material company event).
Directly affected
- ALGM Allegro Microsystems-3.7% 30d
Named in this report.
Indirectly affected
- XLK Technology Select Sector SPDR+9.1% 16d
Technology Select Sector SPDR holds the technology sector that Allegro MicroSystems belongs to, so it often moves with news about it.
- AVGO Broadcom+1.3% 30d
Broadcom is a peer of Allegro MicroSystems in semiconductors and related devices; rivals often move on the same news.
- MU Micron Technology+0.6% 30d
Micron Technology is a peer of Allegro MicroSystems in semiconductors and related devices; rivals often move on the same news.
- AMD Advanced Micro Devices+6.2% 30d
Advanced Micro Devices is a peer of Allegro MicroSystems in semiconductors and related devices; rivals often move on the same news.
- INTC Intel-12.2% 30d
Intel is a peer of Allegro MicroSystems in semiconductors and related devices; rivals often move on the same news.
- AMAT Applied Materials-8.9% 30d
Applied Materials is a peer of Allegro MicroSystems in semiconductors and related devices; rivals often move on the same news.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| ALGM | -10.43% | -8.65% | base | after close | after close | after close | after close |
| XLKNo price data for this ticker | — | — | — | — | — | — | — |
| AVGONo price data for this ticker | — | — | — | — | — | — | — |
| MUNo price data for this ticker | — | — | — | — | — | — | — |
| AMDNo price data for this ticker | — | — | — | — | — | — | — |
| INTCNo price data for this ticker | — | — | — | — | — | — | — |
| AMATNo price data for this ticker | — | — | — | — | — | — | — |
Closing-price change versus T-1, the last close before the story. T0 to T+3 fill in after each market close. Prices: Alpaca IEX.
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Filed: 2026-10-29 AccNo: 0001193125-26-436963 Size: 1 MB Item 2.02: Results of Operations and Financial Condition Item 9.01: Financial Statements and Exhibits
Source: sec-edgar
Allegro Microsystems (ALGM) since “8-K - ALLEGRO MICROSYSTEMS, INC. (0000866291) (Filer),” compared with the market
| Company | When | Move | Status |
|---|---|---|---|
| Allegro Microsystems (ALGM) | three days earlier | -8.65% | final price |
| Allegro Microsystems (ALGM) | five days earlier | -10.43% | final price |
Trades by members of Congress and officials in the stocks in this story
- Rep. Gilbert Cisneros bought Allegro Microsystems (ALGM), worth $1,001 - $15,000 on 29 Sep 2026. That is 30 days before publication. Filed 12 Oct 2026. View the filing.
- Rep. Rohit Khanna sold Broadcom (AVGO) (held by a spouse), worth $1,001 - $15,000 on 25 Sep 2026. That is 34 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Rohit Khanna sold Broadcom (AVGO) (held by a dependent child), worth $15,001 - $50,000 on 23 Sep 2026. That is 36 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Gilbert Cisneros sold Broadcom (AVGO), worth $1,001 - $15,000 on 16 Sep 2026. That is 43 days before publication. Filed 12 Oct 2026. View the filing.
- Sen. John Boozman sold Micron Technology (MU) (jointly held), worth $1,001 - $15,000 on 24 Sep 2026. That is 35 days before publication. Filed 21 Oct 2026. View the filing.
- Sen. John Boozman sold Micron Technology (MU) (jointly held), worth $1,001 - $15,000 on 9 Sep 2026. That is 50 days before publication. Filed 21 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, sold Micron Technology (MU), worth $250,001 - $500,000 on 21 Aug 2026. That is 69 days before publication. Filed 8 Oct 2026. View the filing.
- Rep. Rohit Khanna bought Advanced Micro Devices (AMD) (held by a spouse), worth $1,001 - $15,000 on 4 Sep 2026. That is 55 days before publication. Filed 7 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, sold Advanced Micro Devices (AMD), worth $1,000,001 - $5,000,000 on 21 Aug 2026. That is 69 days before publication. Filed 8 Oct 2026. View the filing.
- Rep. Gilbert Cisneros sold Advanced Micro Devices (AMD), worth $1,001 - $15,000 on 18 Aug 2026. That is 72 days before publication. Filed 10 Sep 2026. View the filing.
- Rep. Rohit Khanna bought Intel (INTC) (held by a spouse), worth $1,001 - $15,000 on 4 Sep 2026. That is 55 days before publication. Filed 7 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, sold Intel (INTC), worth $100,001 - $250,000 on 21 Aug 2026. That is 69 days before publication. Filed 8 Oct 2026. View the filing.
Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).
Who gains and who loses around Allegro Microsystems (ALGM)
Companies mentioned with this story
- ALGM Allegro Microsystems
Allegro Microsystems (ALGM) is linked, with no stored direction, high confidence in the 29 Oct 2026 story “8-K - ALLEGRO MICROSYSTEMS, INC. (0000866291) (Filer).” Reason on file: SEC 8-K filing -> direct issuer disclosure -> ALGM
How “8-K - ALLEGRO MICROSYSTEMS, INC. (0000866291) (Filer)” reaches Allegro Microsystems (ALGM)
The 29 Oct 2026 story “8-K - ALLEGRO MICROSYSTEMS, INC. (0000866291) (Filer)” names Allegro Microsystems (ALGM) because of this story.
For Allegro Microsystems (ALGM), the reason on file says SEC 8-K filing -> direct issuer disclosure -> ALGM
The price range for Allegro Microsystems (ALGM), and the dates in the story
ALGM traded between 30.55 and 39.28 across 20 sessions. The latest close on file is 34.00.
A simple score for Allegro Microsystems (ALGM)
14 out of 100
“8-K - ALLEGRO MICROSYSTEMS, INC. (0000866291) (Filer)” scores 14 out of 100. The score uses 1 sources, and 1 linked companies.