Vault-13

EROCK INC EROC

CL A COM · Common Stock · CUSIP 296013105

89 institutional holders
34,316,45334.3m shares reported held*
$497.6mreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $14.50.

Biggest buyers

PRICE T ROWE ASSOCIATES INC /MD/ New +2,275,983+2.3m
Balyasny Asset Management L.P. New +2,099,619+2.1m
Cinctive Capital Management LP New +1,947,261+1.9m
Encompass Capital Advisors LLC New +1,900,000+1.9m
Zimmer Partners, LP New +1,891,745+1.9m
AMERIPRISE FINANCIAL INC New +1,825,179+1.8m
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ New +1,776,265+1.8m
ALLIANCEBERNSTEIN L.P. New +1,702,121+1.7m
CITADEL ADVISORS LLC New +1,505,997+1.5m
Value Aligned Research Advisors, LLC New +1,345,920+1.3m

Biggest sellers

None

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Energy Impact Partners LLC 13D · may seek influence new · filed 2026-06-18
Stated purposeThe information set forth in Item 3 of this Statement is incorporated herein by reference. The Reporting Persons hold the securities of the Issuer for general investment purposes. The Reporting Persons may, from time to time, depending on prevailing market, economic and other conditions, acquire additional shares of Class A common stock or other securities of the Issuer, dispose of any such securities, or engage in discussions with the Issuer concerning such acquisitions or dispositions or further investments in the Issuer. The Reporting Persons intend to review their investment in the Issuer on a continuing basis and, depending upon the price and availability of shares of Class A common stock or other securities of the Issuer, subsequent developments affecting the Issuer, the Issuer's bus… Full filing
 78.1% new 102.8m≈ $1.5bn 2026-06-18
McAndrew Walter Thomas Jr. 13G · exempt (held before listing) no change · filed 2026-09-04 31.9% no change 22.6m≈ $327.5m 2026-09-04

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 2,275,9832.3m $33.0m $33.0m 0.00% New
2 Balyasny Asset Management L.P. 0.06% of their portfolio Chicago, IL 2,099,6192.1m $30.4m $30.4m 0.06% New
3 Cinctive Capital Management LP 1.13% of their portfolio New York, NY 1,947,2611.9m $28.2m $28.2m 1.13% New
4 Encompass Capital Advisors LLC 1.19% of their portfolio New York, NY 1,900,0001.9m $27.6m $27.6m 1.19% New
5 Zimmer Partners, LP 0.65% of their portfolio NEW YORK, NY 1,891,7451.9m $27.4m $27.4m 0.65% New
6 AMERIPRISE FINANCIAL INC 0.01% of their portfolio MINNEAPOLIS, MN 1,825,1791.8m $26.5m $26.5m 0.01% New
7 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 1,776,2651.8m $25.8m $25.8m 0.01% New
8 ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio NASHVILLE, TN 1,702,1211.7m $24.7m $24.7m 0.01% New
9 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 1,505,9971.5m $21.8m $21.8m 0.01% New
10 Value Aligned Research Advisors, LLC 0.12% of their portfolio PRINCETON, NJ 1,345,9201.3m $19.5m $19.5m 0.12% New
11 Alyeska Investment Group, L.P. 0.05% of their portfolio CHICAGO, IL 1,276,3911.3m $18.5m $18.5m 0.05% New
12 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 1,116,3751.1m $16.2m $16.2m 0.00% New
13 Pictet Asset Management Holding SA 0.01% of their portfolio CAROUGE, V8 1,056,6811.1m $15.3m $15.3m 0.01% New
14 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 1,030,7281.0m $14.9m $14.9m 0.00% New
15 CIBC Bancorp USA Inc. 0.02% of their portfolio CHICAGO, IL 1,000,0001.0m $14.5m $14.5m 0.02% New
16 SEVEN GRAND MANAGERS, LLC 0.29% of their portfolio BRONXVILLE, NY 500,000500.0k $7.2m $7.2m 0.29% New
17 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 498,508498.5k $7.2m $7.2m 0.00% New
18 REAVES W H & CO INC 0.10% of their portfolio JERSEY CITY, NJ 435,000435.0k $6.3m $6.3m 0.10% New
19 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 434,932434.9k $6.3m $6.3m 0.00% New
20 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 416,431416.4k $6.0m $6.0m 0.00% New
21 UBS Group AG 0.00% of their portfolio ZURICH, V8 404,566404.6k $5.9m $5.9m 0.00% New
22 Ghisallo Capital Management LLC 0.11% of their portfolio BOSTON, MA 400,000400.0k $5.8m $5.8m 0.11% New
23 SOROS FUND MANAGEMENT LLC 0.07% of their portfolio NEW YORK, NY 376,206376.2k $5.5m $5.5m 0.07% New
24 Burkehill Global Management, LP 0.20% of their portfolio NEW YORK, NY 375,000375.0k $5.4m $5.4m 0.20% New
25 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.01% of their portfolio Boston, MA 369,484369.5k $5.4m $5.4m 0.01% New
26 EAGLE GLOBAL ADVISORS LLC 0.18% of their portfolio Houston, TX 365,000365.0k $5.3m $5.3m 0.18% New
27 BOOTHBAY FUND MANAGEMENT, LLC 0.09% of their portfolio NEW YORK, NY 339,153339.2k $4.9m $4.9m 0.09% New
28 Aventail Capital Group, LP 0.28% of their portfolio NEW YORK, NY 331,805331.8k $4.8m $4.8m 0.28% New
29 TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio STAMFORD, CT 305,002305.0k $4.4m $4.4m 0.02% New
30 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 281,364281.4k $4.1m $4.1m 0.00% New
31 EMERALD ADVISERS, LLC 0.10% of their portfolio LEOLA, PA 280,734280.7k $4.1m $4.1m 0.10% New
32 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio TORONTO, A6 265,000265.0k $3.9m $3.9m 0.01% New
33 Freestone Grove Partners LP 0.03% of their portfolio San Francisco, CA 264,072264.1k $3.8m $3.8m 0.03% New
34 Yaupon Capital Management LP 0.12% of their portfolio NEW YORK, NY 250,000250.0k $3.6m $3.6m 0.12% New
35 Lighthouse Investment Partners, LLC 0.11% of their portfolio Palm Beach Gardens, FL 247,437247.4k $3.6m $3.6m 0.11% New
36 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 225,000225.0k $3.3m $3.3m 0.00% New
37 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 210,239210.2k $3.0m $3.0m 0.00% New
38 BlueCrest Capital Management Ltd 0.12% of their portfolio ST HELIER, Y9 200,000200.0k $2.9m $2.9m 0.12% New
39 LMR Partners LLP 0.02% of their portfolio LONDON, X0 189,500189.5k $2.7m $2.7m 0.02% New
40 EMERALD MUTUAL FUND ADVISERS TRUST 0.09% of their portfolio LEOLA, PA 182,249182.2k $2.6m $2.6m 0.09% New
41 Woodline Partners LP 0.01% of their portfolio San Francisco, CA 176,721176.7k $2.6m $2.6m 0.01% New
42 SIR Capital Management, L.P. 0.29% of their portfolio NEW YORK, NY 176,100176.1k $2.6m $2.6m 0.29% New
43 Schonfeld Strategic Advisors LLC 0.01% of their portfolio NEW YORK, NY 175,832175.8k $2.5m $2.5m 0.01% New
44 ELEMENT CAPITAL MANAGEMENT LLC 0.11% of their portfolio New York, NY 142,015142.0k $2.1m $2.1m 0.11% New
45 Capricorn Fund Managers Ltd 0.16% of their portfolio LONDON, X0 140,000140.0k $2.0m $2.0m 0.16% New
46 Weiss Asset Management LP 0.02% of their portfolio BOSTON, MA 117,700117.7k $1.7m $1.7m 0.02% Not comparable
47 Hill City Capital, LP 0.04% of their portfolio BOSTON, MA 110,000110.0k $1.6m $1.6m 0.04% New
48 Brooklands Fund Management Ltd 1.11% of their portfolio LONDON, X0 106,313106.3k $1.4m $1.4m 1.11% New
49 XTX Topco Ltd 0.02% of their portfolio LONDON, X0 106,049106.0k $1.5m $1.5m 0.02% New
50 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 102,539102.5k $1.5m $1.5m 0.00% New
51 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 101,213101.2k $1.5m $1.5m 0.00% New
52 STEADFAST CAPITAL MANAGEMENT LP 0.04% of their portfolio NEW YORK, NY 90,00090.0k $1.3m $1.3m 0.04% New
53 Third Point LLC 0.03% of their portfolio NEW YORK, NY 83,03083.0k $1.2m $1.2m 0.03% New
54 Shay Capital LLC 0.13% of their portfolio NEW YORK, NY 80,00080.0k $1.2m $1.2m 0.13% New
55 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 77,93177.9k $1.1m $1.1m 0.00% New
56 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 65,71565.7k $952.9k $952.9k 0.00% New
57 Hudson Bay Capital Management LP 0.00% of their portfolio STAMFORD, CT 62,16062.2k $901.3k $901.3k 0.00% New
58 Pentwater Capital Management LP 0.01% of their portfolio Naples, FL 60,00060.0k $870.0k $870.0k 0.01% New
59 SummitTX Capital, L.P. 0.02% of their portfolio FORT WORTH, TX 55,00055.0k $797.5k $797.5k 0.02% New
60 READYSTATE ASSET MANAGEMENT LP 0.03% of their portfolio CHICAGO, IL 50,00050.0k $725.0k $725.0k 0.03% New
61 KAYNE ANDERSON CAPITAL ADVISORS LP 0.01% of their portfolio LOS ANGELES, CA 49,00049.0k $710.5k $710.5k 0.01% New
62 FEDERATED HERMES, INC. 0.00% of their portfolio PITTSBURGH, PA 35,81235.8k $519.3k $519.3k 0.00% New
63 Engineers Gate Manager LP 0.01% of their portfolio NEW YORK, NY 35,50035.5k $514.8k $514.8k 0.01% New
64 Verition Fund Management LLC 0.00% of their portfolio GREENWICH, CT 25,00025.0k $362.5k $362.5k 0.00% New
65 Murchinson Ltd. 0.18% of their portfolio TORONTO, A6 25,00025.0k $362.5k $362.5k 0.18% New
66 FMR LLC 0.00% of their portfolio BOSTON, MA 24,84924.8k $360.3k $360.3k 0.00% New
67 Gillson Capital LP 0.01% of their portfolio CHICAGO, IL 17,50017.5k $254.0k $254.0k 0.01% New
68 Virtu Financial LLC 0.01% of their portfolio New York, NY 17,10617.1k $248.0k $248.0k 0.01% New
69 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 16,26916.3k $235.0k $235.0k 0.00% New
70 Jefferies Financial Group Inc. 0.00% of their portfolio NEW YORK, NY 15,00015.0k $217.5k $217.5k 0.00% New
71 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 13,26713.3k $192.4k $192.4k 0.00% New
72 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 12,91512.9k $187.3k $187.3k 0.00% New
73 Harbor Advisors LLC 0.02% of their portfolio West Palm Beach, FL 11,60011.6k $168.2k $168.2k 0.02% New
74 Legal & General Group Plc 0.00% of their portfolio London, X0 10,00010.0k $145.0k $145.0k 0.00% New
75 Fulcrum Asset Management LLP 0.01% of their portfolio LONDON, X0 9,2589.3k $128.4k $128.4k 0.01% New
76 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 5,7285.7k $83.1k $83.1k 0.00% New
77 PIN OAK INVESTMENT ADVISORS INC 0.05% of their portfolio HOUSTON, TX 5,0545.1k $73.0k $73.0k 0.05% New
78 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 4,0894.1k $59.0k $59.0k 0.00% New
79 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 2,7342.7k $39.6k $39.6k 0.00% New
80 JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio DES PERES, MO 1,8681.9k $25.7k $25.7k 0.00% New
81 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 1,2261.2k $17.8k $17.8k 0.00% New
82 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 972972 $14.1k $14.1k 0.00% New
83 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 500500 $7.2k $7.2k 0.00% New
84 Your Advocates Ltd., LLP 0.00% of their portfolio HOUSTON, TX 400400 $5.8k $5.8k 0.00% New
85 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 160160 $2.3k $2.3k 0.00% New
86 MRP Capital Investments, LLC 0.00% of their portfolio ALPHARETTA, GA 125125 $1.8k $1.8k 0.00% New
87 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 107107 $1.6k $1.6k 0.00% New
88 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 9999 $1.4k $1.4k 0.00% New
89 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 5050 $725 $725 0.00% New