AI Holders Summary · Q1 2026

320 institutions reported ATKR in Q1 2026. Gates Capital Management, Inc. leads at 12.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(6 on this page)

#HolderValueShares% port.Quarter

Gates Capital Management, Inc.

CIK 0001312908

$158M2.7M4.32%Q1 2026 02

BlackRock, Inc.

CIK 0002012383

$155M2.6M0.00%Q1 2026 03

Vanguard Portfolio Management

CIK 0002100121· Index

$123M2.1M0.01%Q1 2026 04

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$89M1.5M0.00%Q1 2026 05

AMERICAN CENTURY COMPANIES INC

CIK 0000748054

$85M1.4M0.04%Q1 2026 06

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$72M1.2M0.01%Q1 2026 07

FIRST TRUST ADVISORS LP

CIK 0001125816· Index

$72M1.2M0.05%Q1 2026 08

LSV ASSET MANAGEMENT

CIK 0001050470

$62M1.1M0.13%Q1 2026 09

Coliseum Capital Management, LLC

CIK 0001409751

$56M947K4.57%Q1 2026 10

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$50M855K0.00%Q1 2026 11

STATE STREET CORP

CIK 0000093751

$49M835K0.00%Q1 2026 12

EARNEST PARTNERS LLC

CIK 0001102578

$46M778K0.19%Q1 2026 13

Hill City Capital, LP

CIK 0001837343

$43M728K1.53%Q1 2026 14

HARDING LOEVNER LP

CIK 0000928196

$42M705K0.43%Q1 2026 15

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 0001164508

$41M698K0.02%Q1 2026 16

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

CIK 0001705339

$31M533K0.04%Q1 2026 17

BANK OF AMERICA CORP /DE/

CIK 0000070858

$27M462K0.00%Q1 2026 18

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$25M418K0.00%Q1 2026 19

GENDELL JEFFREY L

CIK 0001056581

$24M400K0.32%Q1 2026 20

Swedbank AB

CIK 0000946431

$23M296K0.02%Q2 2026

Page 1 of 16

300 more holders available. Log in →