65 institutions reported holding $14.7M of KLX ENERGY SERVICES HOLDINGS (KLXE) in SEC 13F filings for 2026-03-31. Largest institutional holders: GENDELL JEFFREY L ($4.6M), CastleKnight Management LP ($2.4M), VANGUARD CAPITAL MANAGEMENT LLC ($1.4M), MARSHALL WACE, LLP ($969,532), MORGAN STANLEY ($554,163). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GENDELL JEFFREY L | $4.6M | 1.8M | Added |
| 2 | CastleKnight Management LP | $2.4M | 921,045 | Trimmed |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $1.4M | 553,961 | New |
| 4 | MARSHALL WACE, LLP | $969,532 | 372,897 | New |
| 5 | MORGAN STANLEY | $554,163 | 213,139 | Trimmed |
| 6 | BlackRock, Inc. | $499,172 | 191,989 | Added |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $463,292 | 178,151 | Added |
| 8 | MACROVIEW INVESTMENT MANAGEMENT LLC | $454,210 | 174,696 | Added |
| 9 | RENAISSANCE TECHNOLOGIES LLC | $395,460 | 152,100 | Added |
| 10 | CITADEL ADVISORS LLC | $376,818 | 144,930 | Trimmed |
| 11 | Round Rock Advisors, LLC | $362,996 | 139,614 | New |
| 12 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $260,000 | 100,000 | Hold |
| 13 | JANE STREET GROUP, LLC | $246,148 | 94,672 | Added |
| 14 | VANGUARD FIDUCIARY TRUST CO | $197,831 | 76,089 | New |
| 15 | STATE STREET CORP | $186,774 | 71,836 | Added |
| 16 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $162,752 | 62,597 | Added |
| 17 | GSA CAPITAL PARTNERS LLP | $119,000 | 45,709 | New |
| 18 | ACADIAN ASSET MANAGEMENT LLC | $106,000 | 41,547 | New |
| 19 | GAMCO INVESTORS, INC. ET AL | $91,000 | 35,000 | Trimmed |
| 20 | Point72 Asset Management, L.P. | $81,034 | 31,167 | Hold |
| 21 | NORTHERN TRUST CORP | $67,969 | 26,142 | Trimmed |
| 22 | PNC Financial Services Group, Inc. | $61,685 | 23,725 | Added |
| 23 | Bank of New York Mellon Corp | $60,903 | 23,424 | Hold |
| 24 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $59,025 | 22,702 | Hold |
| 25 | RAYMOND JAMES FINANCIAL INC | $57,483 | 22,109 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31