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Rossby Financial’s Blackrock BLK Stock Holding History

Rossby Financial’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 		$100K Buy
104
+9
+9% +$9.31K 0.02% 537
2026
Q1 		$91.1K Buy
95
+25
+36% +$26.3K 0.02% 562
2025
Q4 		$74.9K Buy
70
+18
+35% +$19.7K 0.02% 465
2025
Q3 		$59.3K Buy
52
+15
+41% +$16.8K 0.02% 507
2025
Q2 		$38.8K Buy
37
+11
+42% +$10.4K 0.01% 539
2025
Q1 		$23.6K Buy
+26
New +$25.5K 0.01% 589

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

Rossby Financial's BLK Position: Q2 2026 in Review

Rossby Financial increased its Blackrock (BLK) stake by 9.5% in Q2 2026, buying an estimated $9.31K and bringing the position to 104 shares worth $100K. The position accounts for 0.02% of the portfolio, ranked #537.

Rossby Financial first reported a position in BLK in Q1 2025 and has held it in 6 quarters since. 2,328 funds tracked by Wall St. Rank hold BLK as of Q2 2026.

  • Rossby Financial held 104 shares of Blackrock worth $100K as of Q2 2026.
  • Rossby Financial bought 9 Blackrock shares in Q2 2026, an estimated $9.31K.
  • Blackrock made up 0.02% of Rossby Financial's portfolio in Q2 2026, its #537 holding.
  • Rossby Financial first reported a position in Blackrock in Q1 2025 and has held it in 6 quarters since.
  • 2,328 funds tracked by Wall St. Rank held Blackrock as of Q2 2026.

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