MAM
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Mainsail Asset Management’s Blackrock BLK Stock Holding History

Mainsail Asset Management’s Portfolio BLK Stock Details BLK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$280K Sell
261
-1
-0.4% -$1.03K 0.11% 124
2026
Q1 		$252K Buy
262
+68
+35% +$71.5K 0.11% 83
2025
Q4 		$208K Buy
+194
New +$212K 0.09% 98

Other funds holding BLK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Temasek Holdings
Temasek Holdings Singapore $37.3B AUM 12.6% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 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
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Mainsail Asset Management's BLK Position: Q2 2026 in Review

Mainsail Asset Management reduced its Blackrock (BLK) stake by 0.38% in Q2 2026, selling an estimated $1.03K and leaving 261 shares worth $280K. The position accounts for 0.11% of the portfolio, ranked #124.

Mainsail Asset Management first reported a position in BLK in Q4 2025 and has held it in 3 quarters since. 2,329 funds tracked by Wall St. Rank hold BLK as of Q2 2026.

  • Mainsail Asset Management held 261 shares of Blackrock worth $280K as of Q2 2026.
  • Mainsail Asset Management sold 1 Blackrock share in Q2 2026, an estimated $1.03K.
  • Blackrock made up 0.11% of Mainsail Asset Management's portfolio in Q2 2026, its #124 holding.
  • Mainsail Asset Management first reported a position in Blackrock in Q4 2025 and has held it in 3 quarters since.
  • 2,329 funds tracked by Wall St. Rank held Blackrock as of Q2 2026.

Based on Mainsail Asset Management's 13F filing for Q2 2026, filed 12 Aug 2026.