Allegro MicroSystems
ALGM
322 hedge funds and large institutions have $4.32B invested in Allegro MicroSystems in 2026 Q1 according to their latest regulatory filings, with 70 funds opening new positions, 125 increasing their positions, 86 reducing their positions, and 37 closing their positions.
89% more first-time investments, than exits
New positions opened: 70 | Existing positions closed: 37
45% more repeat investments, than reductions
Existing positions increased: 125 | Existing positions reduced: 86
39% more call options, than puts
Call options by funds: $6.15M | Put options by funds: $4.41M
20% more capital invested
Capital invested by funds: $3.6B → $4.32B (+$721M)
10% more funds holding
Funds holding: 293 → 322 (+29)
0.93% more ownership
Funds ownership: 73.74% → 74.67% (+0.93%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$130M |
| 2 |
JP Morgan Chase
New York
|
+$45M |
| 3 |
Invesco
Atlanta,
Georgia
|
+$37.9M |
| 4 |
KCM
Kennedy Capital Management
St Louis,
Missouri
|
+$29.8M |
| 5 |
Loomis, Sayles & Company
Boston,
Massachusetts
|
+$29.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$74.5M |
| 2 |
ACM
Analog Century Management
New York
|
-$49.9M |
| 3 |
Adage Capital Partners
Boston,
Massachusetts
|
-$46.2M |
| 4 |
Millennium Management
New York
|
-$45.3M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
-$29.5M |
ALGM Hedge Fund Activity: Q1 2026 in Review
322 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Allegro MicroSystems (ALGM) for Q1 2026, worth a combined $4.32B — up 20% from $3.6B a quarter earlier.
Buyers outnumbered sellers: 70 funds opened new ALGM positions and 37 closed out — a net gain of 33 holders — while 125 added to existing stakes and 86 trimmed.
The largest buyer was Fidelity Investments, adding an estimated $130M. The largest seller was Citadel Advisors, cutting an estimated $74.5M.
- 322 institutional investors held Allegro MicroSystems (ALGM) as of Q1 2026, up from 293 in Q4 2025.
- Funds reported $4.32B of Allegro MicroSystems stock for Q1 2026, up 20% quarter-over-quarter.
- 70 funds opened new Allegro MicroSystems positions in Q1 2026 and 37 closed out, a net change of +33 holders.
- The largest Allegro MicroSystems buyer in Q1 2026 was Fidelity Investments, an estimated $130M added.
- The largest Allegro MicroSystems seller in Q1 2026 was Citadel Advisors, an estimated $74.5M sold.
Based on aggregated 13F filings for Q1 2026.