Allegro MicroSystems
ALGM
293 hedge funds and large institutions have $3.6B invested in Allegro MicroSystems in 2025 Q4 according to their latest regulatory filings, with 56 funds opening new positions, 79 increasing their positions, 122 reducing their positions, and 52 closing their positions.
8% more first-time investments, than exits
New positions opened: 56 | Existing positions closed: 52
0.3% more ownership
Funds ownership: 73.44% → 73.75% (+0.3%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
1% less funds holding
Funds holding: 296 → 293 (-3)
9% less capital invested
Capital invested by funds: $3.97B → $3.6B (-$365M)
35% less repeat investments, than reductions
Existing positions increased: 79 | Existing positions reduced: 122
65% less call options, than puts
Call options by funds: $11.9M | Put options by funds: $34.3M
Top Buyers
| 1 |
Invesco
Atlanta,
Georgia
|
+$64.4M |
| 2 |
Citadel Advisors
Miami,
Florida
|
+$61.3M |
| 3 |
Adage Capital Partners
Boston,
Massachusetts
|
+$33.8M |
| 4 |
BlackRock
New York
|
+$22.7M |
| 5 |
ACM
Analog Century Management
New York
|
+$19.7M |
Top Sellers
ALGM Hedge Fund Activity: Q4 2025 in Review
293 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Allegro MicroSystems (ALGM) for Q4 2025, worth a combined $3.6B — down 9.2% from $3.97B a quarter earlier.
Buyers outnumbered sellers: 56 funds opened new ALGM positions and 52 closed out — a net gain of 4 holders — while 79 added to existing stakes and 122 trimmed.
The largest buyer was Invesco, adding an estimated $64.4M. The largest seller was Fidelity Investments, cutting an estimated $105M.
- 293 institutional investors held Allegro MicroSystems (ALGM) as of Q4 2025, down from 296 in Q3 2025.
- Funds reported $3.6B of Allegro MicroSystems stock for Q4 2025, down 9.2% quarter-over-quarter.
- 56 funds opened new Allegro MicroSystems positions in Q4 2025 and 52 closed out, a net change of +4 holders.
- The largest Allegro MicroSystems buyer in Q4 2025 was Invesco, an estimated $64.4M added.
- The largest Allegro MicroSystems seller in Q4 2025 was Fidelity Investments, an estimated $105M sold.
Based on aggregated 13F filings for Q4 2025.