Manager × security

FRONTIER CAPITAL MANAGEMENT CO LLC ALK holdings history

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ALASKA AIR GROUP INC · CUSIP 011659109 · CIK 351173

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-06-30, FRONTIER CAPITAL MANAGEMENT CO LLC reported 3.38M ALK (shares), valued at $176.68M, or 1.65% of its reported non-derivative portfolio. Filed 2026-08-14.

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Portfolio weight and quantity history
Reported portfolio weight
1.65%
Shares
3.38M
3,384,643
Reported value
$176.68M
USD

Shares increased 0.33%; reported value increased 42.39%, and weight changed +0.37 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.

Left: % · Right: Shares · Independently scaled axes

Exact data and methodology

Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.

QuarterWeightQuantitySource
Q2 20261.65%3,384,643SEC filing ↗Filed Aug 14, 2026
Q1 20261.28%3,373,587SEC filing ↗Filed May 15, 2026
Q4 20251.22%2,280,772SEC filing ↗Filed Feb 17, 2026
Q3 20250.80%1,789,020SEC filing ↗Filed Nov 14, 2025
Q2 20250.46%1,009,317SEC filing ↗Filed Aug 14, 2025
Q1 20250.30%565,745SEC filing ↗Filed May 15, 2025
Q4 20240.60%978,738SEC filing ↗Filed Feb 14, 2025
Q3 20240.50%1,179,808SEC filing ↗Filed Nov 14, 2024
Q2 20240.58%1,457,309SEC filing ↗Filed Aug 14, 2024
Q1 20240.54%1,337,428SEC filing ↗Filed May 15, 2024
Q4 20230.34%869,045SEC filing ↗Filed Feb 14, 2024
Q3 20230.10%256,470SEC filing ↗Filed Nov 14, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20230.10%256,470$9.51MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing ↗
Filed Nov 14, 2023
Q4 20230.34%869,045$33.95MShares increased 238.85%; reported value increased 257.03%, and weight changed +0.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 14, 2024
Q1 20240.54%1,337,428$57.50MShares increased 53.90%; reported value increased 69.34%, and weight changed +0.20 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2024
Q2 20240.58%1,457,309$58.88MShares increased 8.96%; reported value increased 2.40%, and weight changed +0.04 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2024
Q3 20240.50%1,179,808$53.34MShares decreased 19.04%; reported value decreased 9.40%, and weight changed -0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2024
Q4 20240.60%978,738$63.37MShares decreased 17.04%; reported value increased 18.81%, and weight changed +0.10 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 14, 2025
Q1 20250.30%565,745$27.85MShares decreased 42.20%; reported value decreased 56.06%, and weight changed -0.30 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2025
Q2 20250.46%1,009,317$49.94MShares increased 78.40%; reported value increased 79.35%, and weight changed +0.16 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2025
Q3 20250.80%1,789,020$89.06MShares increased 77.25%; reported value increased 78.33%, and weight changed +0.34 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2025
Q4 20251.22%2,280,772$114.72MShares increased 27.49%; reported value increased 28.82%, and weight changed +0.42 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 17, 2026
Q1 20261.28%3,373,587$124.08MShares increased 47.91%; reported value increased 8.16%, and weight changed +0.06 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2026
Q2 20261.65%3,384,643$176.68MShares increased 0.33%; reported value increased 42.39%, and weight changed +0.37 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2026
FRONTIER CAPITAL MANAGEMENT CO LLC · ALASKA AIR GROUP INC

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.