ALGM β€” ALLEGRO MICROSYSTEMS INC COM

Ownership history in SEGALL BRYANT & HAMILL, LLC  Β·  10 quarters on record

AI Ownership Summary

SEGALL BRYANT & HAMILL, LLC reported ALLEGRO MICROSYSTEMS INC COM (ALGM) in 10 quarterly 13F filings from 2025 Q1 through 2025 Q4. Peak portfolio weight reached 0.64% in 2025 Q2. The latest visible filing shows ALGM at 0.45% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this ALGM ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was SEGALL BRYANT & HAMILL, LLC's position in ALLEGRO MICROSYSTEMS INC COM, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

ALGM was reported at 0.45% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.64% in 2025 Q2

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q1 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

ALGM stock page SEGALL BRYANT & HAMILL, LLC fund profile SEGALL BRYANT & HAMILL, LLC full holdings
How SEGALL BRYANT & HAMILL, LLC held ALGM β€” position size vs. price
% of Fund (quarterly)    ALGM price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
πŸ“‹ Quarterly Holdings History 4 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 1,248,310 -75,416 -5.7% 0.45% $32.9M 2026-02-14 (Est.) $42.38
2025 Q3 REDUCED 1,323,726 -4,528 -0.3% 0.51% $38.7M 2025-11-12 $26.47
2025 Q2 ADDED 1,328,254 +16,728 +1.3% 0.64% $45.4M 2025-08-12 $31.89
2025 Q1 ADDED 1,311,526 +1,228,629 +1482.1% 0.51% $33.0M 2025-05-02 $19.55
6 older quarters hidden  β€”  Sign in free or upgrade to Premium to see full history

🏒 Other funds also holding ALGM

As of 2026 Q1 β€” sorted by position size

MOODY NATIONAL BANK TRUST DIVISION 3Y 7Y 0.07% GAMMA Investing LLC 0.0% Activest Wealth Management 3Y 0.0% CoreCap Advisors, LLC 3Y 0.0% Global X Japan Co., Ltd. 0.0% Farther Finance Advisors, LLC 0.0% WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 3Y 7Y 0.0% Investors Research Corp 3Y 7Y 0.0% Bell Investment Advisors, Inc 3Y 0.0% Versant Capital Management, Inc 3Y 7Y 0.0%

FAQ About SEGALL BRYANT & HAMILL, LLC and ALGM

These are the practical questions this page is built to answer before you even open the full history table.

How long has SEGALL BRYANT & HAMILL, LLC reported owning ALGM?

SEGALL BRYANT & HAMILL, LLC reported ALGM across 4 quarterly 13F filings, from 2025 Q1 through 2025 Q4.

What was the largest reported ALGM position in SEGALL BRYANT & HAMILL, LLC's portfolio?

The largest reported portfolio weight for ALGM was 0.64% in 2025 Q2.

What is the latest reported ALGM position on this page?

The most recent filing on this page is 2025 Q4, when SEGALL BRYANT & HAMILL, LLC reported 1,248,310 shares, equal to 0.45% of portfolio, with an estimated market value of $32.9M.

What does the chart on this ALGM ownership page compare?

The chart compares SEGALL BRYANT & HAMILL, LLC's quarterly ALGM portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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