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Disclosery

MWH SOLV ENERGY INC

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Class A Common Stock (common), issuer CIK 2065636

109 managers (112 13F filers) reported a position in MWH shares at 2026-03-31, 119,484,022 shares in all. 106 filers opened a position and 0 filers sold out during the quarter.

Managers
109
13F filers
112
New
106
Added
0
Reduced
0
Sold out
0
Shares held by filers
119,484,022

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
AMERICAN SECURITIES LLC91,773,571$2.76B70.12%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.1,976,191$59.3M0.1%new13F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding1,939,454$58.2MnewTimeline
Driehaus Capital Management LLC1,270,506$38.2M0.28%new13F-HRTimeline
Handelsbanken Fonder AB1,099,439$33M0.11%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,088,283$32.7M0.02%new13F-HRTimelineGroup
Robeco Schweiz AGin group Robeco Institutional Asset Ma…1,004,904$30.2M0.64%new13F-HRTimelineGroup
Encompass Capital Advisors LLCin group Encompass Capital Advisors LLC1,000,400$30M1.22%new13F-HRTimelineGroup
JENNISON ASSOCIATES LLC864,823$26M0.02%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\756,390$22.7M0.01%new13F-HRTimelineGroup
Yaupon Capital Management LP725,000$21.8M1.07%new13F-HRTimeline
Electron Capital Partners, LLCin group Electron Capital Partners, LLC721,298$21.7M1.02%new13F-HRTimelineGroup
Covalis Capital LLPin group Covalis Capital LLP697,110$20.9M1.29%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC662,451$19.9M<0.01%new13F-HRTimelineGroup
TimesSquare Capital Management, LLC654,015$19.6M0.33%new13F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.646,943$19.4M<0.01%new13F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management597,151$17.9M0.04%new13F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources581,513$17.5M<0.01%new13F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…572,426$17.2M0.02%new13F-HRTimelineGroup
SCOPUS ASSET MANAGEMENT, L.P.539,045$16.2M0.51%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC514,687$15.5M0.01%new13F-HRTimelineGroup
Aventail Capital Group, LP492,980$14.8M0.72%new13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.418,300$12.6M0.02%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP413,086$12.4M0.12%new13F-HRTimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.404,000$12.1M0.02%13F-HRTimelineGroup
REAVES W H & CO INC400,000$12M0.2%new13F-HRTimeline
Schonfeld Strategic Advisors LLC393,792$11.8M0.1%new13F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …379,974$11.4M0.01%new13F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…379,183$11.4M0.02%new13F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP349,097$10.5M0.01%new13F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC324,633$9.75M<0.01%new13F-HRTimelineGroup
Hood River Capital Management LLC312,255$9.38M0.09%new13F-HRTimeline
UBS Group AGin group UBS Group AG284,857$8.55M<0.01%new13F-HRTimelineGroup
Vennlight Capital Management, LP272,818$8.19M8.28%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP254,944$7.66M0.01%new13F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS250,000$7.51M0.03%new13F-HRTimeline
Hill City Capital, LP250,000$7.51M0.27%new13F-HRTimeline
Invesco Ltd.in group Invesco Ltd.226,410$6.8M<0.01%new13F-HRTimelineGroup
Cinctive Capital Management LP203,039$6.1M0.4%new13F-HRTimeline
CUSHING ASSET MANAGEMENT, LP dba NXG IN…200,000$6.01M0.3%new13F-HRTimeline
Ghisallo Capital Management LLC200,000$6.01M0.17%new13F-HRTimeline
LMR Partners LLPin group LMR Partners LLP190,242$5.71M0.05%new13F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC166,307$4.99M0.01%new13F-HRTimelineGroup
Nicholas Investment Partners, LP164,049$4.93M0.36%new13F-HRTimeline
SEVEN GRAND MANAGERS, LLC150,000$4.5M0.3%new13F-HRTimeline
Holocene Advisors, LP147,388$4.43M0.01%new13F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …145,611$4.37M0.01%new13F-HRTimelineGroup
SOROS FUND MANAGEMENT LLCin group SOROS FUND MANAGEMENT LLC140,500$4.22M0.06%new13F-HRTimelineGroup
Burkehill Global Management, LP140,000$4.2M0.21%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co126,149$3.79M<0.01%new13F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.120,000$3.6M0.01%new13F-HRTimelineGroup
KR Capital LP103,573$3.11M0.62%13F-HRTimeline
Bridgewater Associates, LP102,045$3.06M0.01%new13F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…100,000$3M<0.01%new13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP96,300$2.89M<0.01%new13F-HRTimelineGroup
Asset Management One Co., Ltd.93,589$2.81M0.01%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.92,514$2.78M<0.01%new13F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL87,843$2.64M0.01%new13F-HRTimeline
Atom Investors LP83,780$2.52M0.18%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO81,701$2.45M<0.01%new13F-HRTimelineGroup
BENJAMIN EDWARDS INCin group BENJAMIN EDWARDS INC74,383$2.23M0.02%new13F-HRTimelineGroup
OCCUDO QUANTITATIVE STRATEGIES LP54,889$2.19M0.12%new13F-HRTimeline
Arosa Capital Management LP65,686$1.97M1.28%new13F-HRTimeline
Qube Research & Technologies Ltd57,226$1.72M<0.01%new13F-HRTimeline
Weiss Asset Management LPin group Weiss Asset Management LP51,185$1.54M0.03%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
BW Gestao de Investimentos Ltda.50,000$1.5M0.07%new13F-HRTimeline
Limestone Investment Advisors LP47,500$1.43M0.7%new13F-HRTimeline
KAYNE ANDERSON CAPITAL ADVISORS LP45,674$1.37M0.03%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP44,701$1.34M<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY44,038$1.32M<0.01%new13F-HRTimelineGroup
Davidson Kempner Capital Management LP40,000$1.2M0.02%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC37,022$1.11M<0.01%new13F-HR/ATimelineGroup
SIR Capital Management, L.P.35,600$1.07M0.1%new13F-HRTimeline
ELEMENT CAPITAL MANAGEMENT LLC32,561$978K0.38%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/31,683$951K<0.01%new13F-HRTimelineGroup
Shay Capital LLC25,100$754K0.11%new13F-HRTimeline
TEXAS PERMANENT SCHOOL FUND CORP25,000$751K0.03%new13F-HRTimeline
Longaeva Partners L.P.23,317$700K0.03%new13F-HRTimeline
Legato Capital Management LLC22,266$669K0.06%new13F-HRTimeline
ROYCE & ASSOCIATES LP20,005$601K0.01%new13F-HRTimeline
READYSTATE ASSET MANAGEMENT LP20,000$601K0.04%new13F-HRTimeline
Polymer Capital Management (US) LLC19,000$571K0.08%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND18,436$554K<0.01%new13F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC17,955$539K<0.01%new13F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC17,808$535K0.08%new13F-HRTimeline
Quantbot Technologies LP16,731$502K0.02%new13F-HRTimeline
OXFORD ASSET MANAGEMENT LLP16,482$495K0.2%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
PRAXIS INVESTMENT MANAGEMENT INC15,796$474K0.03%new13F-HRTimeline
Renaissance Capital LLC10,061$401K0.29%new13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp12,370$371K<0.01%new13F-HRTimelineGroup
U S GLOBAL INVESTORS INC12,000$360K0.04%new13F-HRTimeline
Woodline Partners LP10,000$300K<0.01%new13F-HR/ATimeline
West Tower Group, LLC9,000$270K0.84%new13F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC7,844$236K<0.01%new13F-HR/ATimelineGroup
Diametric Capital, LP7,348$221K0.06%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC7,259$218K<0.01%new13F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc5,000$150K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1,900$57.1K<0.01%new13F-HR/ATimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,592$47.8K<0.01%new13F-HRTimelineGroup
Caitong International Asset Management …734$22K<0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC637$19.1K<0.01%new13F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…490$14.7K<0.01%new13F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP413$11.6K<0.01%new13F-HRTimelineGroup
HHM Wealth Advisors, LLC330$9.91K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.325$9.76K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA65$2K<0.01%new13F-HRTimelineGroup
SBI Securities Co., Ltd.20$601<0.01%new13F-HRTimeline
Rialto Wealth Management, LLC20$601<0.01%new13F-HRTimeline
GAMMA Investing LLC11$330<0.01%new13F-HRTimeline