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Rossby Financial’s Allegro MicroSystems ALGM Stock Holding History

Rossby Financial’s Portfolio ALGM Stock Details ALGM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$6.2K Buy
89
+51
+134% +$2.39K ﹤0.01% 1352
2026
Q1 		$1.26K Buy
38
+15
+65% +$517 ﹤0.01% 1935
2025
Q4 		$607 Buy
+23
New +$633 ﹤0.01% 1608

Other funds holding ALGM

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return

Rossby Financial's ALGM Position: Q2 2026 in Review

Rossby Financial increased its Allegro MicroSystems (ALGM) stake by 134% in Q2 2026, buying an estimated $2.39K and bringing the position to 89 shares worth $6.2K. The position accounts for ﹤0.01% of the portfolio, ranked #1352.

Rossby Financial first reported a position in ALGM in Q4 2025 and has held it in 3 quarters since. 375 funds tracked by Wall St. Rank hold ALGM as of Q2 2026.

  • Rossby Financial held 89 shares of Allegro MicroSystems worth $6.2K as of Q2 2026.
  • Rossby Financial bought 51 Allegro MicroSystems shares in Q2 2026, an estimated $2.39K.
  • Allegro MicroSystems made up ﹤0.01% of Rossby Financial's portfolio in Q2 2026, its #1352 holding.
  • Rossby Financial first reported a position in Allegro MicroSystems in Q4 2025 and has held it in 3 quarters since.
  • 375 funds tracked by Wall St. Rank held Allegro MicroSystems as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.