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CenterBook Partners’s Alaska Air ALK Stock Holding History

CenterBook Partners’s Portfolio ALK Stock Details ALK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.04M Sell
19,897
-238,289
-92% -$10.2M 0.05% 347
2026
Q1 		$9.5M Buy
258,186
+195,976
+315% +$9.45M 0.51% 39
2025
Q4 		$3.13M Buy
+62,210
New +$2.88M 0.15% 184

Other funds holding ALK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
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
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $10.7B AUM 67.78% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
CCM
Causeway Capital Management Los Angeles, California $9.24B AUM 21.27% 1-Year Est. Return

CenterBook Partners's ALK Position: Q2 2026 in Review

CenterBook Partners reduced its Alaska Air (ALK) stake by 92% in Q2 2026, selling an estimated $10.2M and leaving 19,897 shares worth $1.04M. The position accounts for 0.05% of the portfolio, ranked #347.

CenterBook Partners first reported a position in ALK in Q4 2025 and has held it in 3 quarters since. The position peaked at $9.5M in Q1 2026. 490 funds tracked by Wall St. Rank hold ALK as of Q2 2026.

  • CenterBook Partners held 19,897 shares of Alaska Air worth $1.04M as of Q2 2026.
  • CenterBook Partners sold 238,289 Alaska Air shares in Q2 2026, an estimated $10.2M.
  • Alaska Air made up 0.05% of CenterBook Partners's portfolio in Q2 2026, its #347 holding.
  • CenterBook Partners first reported a position in Alaska Air in Q4 2025 and has held it in 3 quarters since.
  • CenterBook Partners's Alaska Air position peaked at $9.5M in Q1 2026.
  • 490 funds tracked by Wall St. Rank held Alaska Air as of Q2 2026.

Based on CenterBook Partners's 13F filing for Q2 2026, filed 11 Aug 2026.