MJPC
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Michael J. Porro & Co’s Arm ARM Stock Holding History

Michael J. Porro & Co’s Portfolio ARM Stock Details ARM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$3.13M Sell
10,804
-10
-0.1% -$2.72K 1.89% 12
2026
Q2 		$3.83M Sell
10,814
-35
-0.3% -$9.31K 2.18% 9
2026
Q1 		$1.64M Buy
+10,849
New +$1.32M 1.29% 19

Other funds holding ARM

Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $704B AUM 26.74% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $483B AUM 27.72% 1-Year Est. Return
Alphabet Inc
Alphabet Inc Mountain View, California $88.3B AUM 46.07% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $106B AUM 2.29% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $824B AUM 37.44% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $474B AUM 32.39% 1-Year Est. Return

Michael J. Porro & Co's ARM Position: Q3 2026 in Review

Michael J. Porro & Co reduced its Arm (ARM) stake by 0.09% in Q3 2026, selling an estimated $2.72K and leaving 10,804 shares worth $3.13M. The position accounts for 1.89% of the portfolio, ranked #12.

Michael J. Porro & Co first reported a position in ARM in Q1 2026 and has held it in 3 quarters since. The position peaked at $3.83M in Q2 2026. 664 funds tracked by Wall St. Rank hold ARM as of Q3 2026.

  • Michael J. Porro & Co held 10,804 shares of Arm worth $3.13M as of Q3 2026.
  • Michael J. Porro & Co sold 10 Arm shares in Q3 2026, an estimated $2.72K.
  • Arm made up 1.89% of Michael J. Porro & Co's portfolio in Q3 2026, its #12 holding.
  • Michael J. Porro & Co first reported a position in Arm in Q1 2026 and has held it in 3 quarters since.
  • Michael J. Porro & Co's Arm position peaked at $3.83M in Q2 2026.
  • 664 funds tracked by Wall St. Rank held Arm as of Q3 2026.

Based on Michael J. Porro & Co's 13F filing for Q3 2026, filed 16 Oct 2026.