ALGM — ALLEGRO MICROSYSTEMS INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying ALGM?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 4 tracked investors who changed their ALGM position last quarter, 3 bought and 1 sold (75% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 52/100 in a Squeeze regime).
- +3 tracked investors added or increased positions last quarter (Paul Tudor Jones, Izzy Englander, Ray Dalio)
- +5 tracked investors reported holding ALGM at their latest filing
- −1 tracked investor reduced or exited last quarter (1 reduced, 0 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 8/4/2026.
About ALLEGRO MICROSYSTEMS INC (ALGM)
ALLEGRO MICROSYSTEMS INC (ALGM) appears in the most recent 13F filings of 5 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $72M. Across recent filings, tracked investors recorded 7 new positions, 1 increased, 1 reduced, and 0 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in ALGM
How many top investors track ALGM
A small number of top investors own this.
ALGM Ownership Composition
How ALLEGRO MICROSYSTEMS INC is held across tracked investor types, based on reported 13F positions.
- Hedge Funds63.7%
- Other36.3%
Tracked investors reporting ALGM
- Ken GriffinMar 31, 2026Citadel AdvisorsShares466.9KValue$14.7M% Portfolio0.00%
- Izzy EnglanderMar 31, 2026Millennium ManagementShares28.1KValue$886.8K% Portfolio0.00%
- Steve CohenDec 31, 2025Point72 Asset ManagementShares1.1MValue$30.3M% Portfolio0.03%
- Paul Tudor JonesMar 31, 2026Tudor Investment CorpShares37.1KValue$1.2M% Portfolio0.00%
- Ray DalioMar 31, 2026Bridgewater AssociatesShares16.6KValue$524.8K% Portfolio0.00%
Recent activity
- $677KFeb 17, 2026
- $1.2MMay 15, 2026
- $37.3MFeb 17, 2026
- $886.8KMay 15, 2026
- New$30.3MFeb 17, 2026
- Reduced$14.7M(-82.81%)May 15, 2026
- New$524.8KMay 15, 2026
- Increased$71.6M(445.16%)Feb 17, 2026
- New$14.5MNov 14, 2025
Frequently asked questions
- How many institutional investors hold ALGM?
- 5 tracked institutional investors disclosed a position in ALGM (ALLEGRO MICROSYSTEMS INC) in their most recent 13F filing.
- Who is the largest institutional holder of ALGM?
- Ken Griffin, Citadel Advisors, holds the largest disclosed position in ALGM, valued at $72M.
- Did institutional ownership of ALGM increase or decrease?
- Across recent 13F filings, tracked investors recorded 7 new positions, 1 increased, 1 reduced, and 0 fully exited ALGM.
- Where does this ALGM ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.