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Custom Index Systems’s 3M MMM Stock Holding History

Custom Index Systems’s Portfolio MMM Stock Details MMM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$150K Buy
+914
New +$156K 0.05% 288
2025
Q4 		– Sell
-1,357
Closed -$211K – 269
2025
Q3 		$211K Buy
+1,357
New +$209K 0.06% 255

Other funds holding MMM

JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Capital World Investors
Capital World Investors Los Angeles, California $824B AUM 37.44% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
State Farm Mutual Automobile Insurance
State Farm Mutual Automobile Insurance Bloomington, Illinois $142B AUM 43.93% 1-Year Est. Return
Newport Trust Company
Newport Trust Company Washington, District of Columbia $37.2B AUM 2.85% 1-Year Est. Return

Custom Index Systems's MMM Position: Q3 2026 in Review

Custom Index Systems opened a new position in 3M (MMM) in Q3 2026: 914 shares worth $150K. The stake represents 0.05% of the portfolio and ranks #288 among its holdings. This is a return to the name: Custom Index Systems previously reported a position in MMM as recently as Q3 2025.

Custom Index Systems first reported a position in MMM in Q3 2025 and has held it in 2 quarters since. The position peaked at $211K in Q3 2025. 1,981 funds tracked by Wall St. Rank hold MMM as of Q3 2026.

  • Custom Index Systems held 914 shares of 3M worth $150K as of Q3 2026.
  • 3M was a new Custom Index Systems position in Q3 2026.
  • 3M made up 0.05% of Custom Index Systems's portfolio in Q3 2026, its #288 holding.
  • Custom Index Systems first reported a position in 3M in Q3 2025 and has held it in 2 quarters since.
  • Custom Index Systems's 3M position peaked at $211K in Q3 2025.
  • 1,981 funds tracked by Wall St. Rank held 3M as of Q3 2026.

Based on Custom Index Systems's 13F filing for Q3 2026, filed 12 Nov 2026.