DOSSIER · 13F Holders · Q2 2026
EROC

EROCK INC

74 institutions still hold EROCK INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 296013105·74 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$309M
visible holders
Holders
74
filers reporting
Concentration
9.86%
BALYASNY ASSET MANAGEMENT L.P. #1
top holder share
AI Holders Summary · Q2 2026

74 institutions reported EROC in Q2 2026. BALYASNY ASSET MANAGEMENT L.P. leads at 9.9% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
BALYASNY ASSET MANAGEMENT L.P.
CIK 0001218710
$30M2.1M0.04%Q2 2026
02
Cinctive Capital Management LP
CIK 0001787258
$28M1.9M1.04%Q2 2026
03
Encompass Capital Advisors LLC
CIK 0001541901
$28M1.9M0.98%Q2 2026
04
AMERIPRISE FINANCIAL INC
CIK 0000820027
$26M1.8M0.01%Q2 2026
05
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$26M1.8M0.01%Q2 2026
06
CITADEL ADVISORS LLC
CIK 0001423053
$22M1.5M0.00%Q2 2026
07
Value Aligned Research Advisors, LLC
CIK 0001963565
$20M1.3M0.05%Q2 2026
08
Alyeska Investment Group, L.P.
CIK 0001453072
$19M1.3M0.05%Q2 2026
09
Vanguard Portfolio Management
CIK 0002100121· Index
$16M1.1M0.00%Q2 2026
10
Pictet Asset Management Holding SA
CIK 0001993888
$15M1.1M0.01%Q2 2026
11
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$15M1.0M0.00%Q2 2026
12
CIBC Bancorp USA Inc.
CIK 0001711924
$15M1.0M0.02%Q2 2026
13
SEVEN GRAND MANAGERS, LLC
CIK 0001909126
$7M500K0.29%Q2 2026
14
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$7M499K0.00%Q2 2026
15
REAVES W H & CO INC
CIK 0000740913
$6M435K0.10%Q2 2026
16
FRANKLIN RESOURCES INC
CIK 0000038777
$6M435K0.00%Q2 2026
17
UBS Group AG
CIK 0001610520
$6M405K0.00%Q2 2026
18
Ghisallo Capital Management LLC
CIK 0001825214
$6M400K0.11%Q2 2026
19
Burkehill Global Management, LP
CIK 0001904549
$5M375K0.20%Q2 2026
20
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$5M369K0.01%Q2 2026
Page 1 of 4
54 more holders available. Log in →
Insiders at EROCK INC
Kobler HansPatterson Mark RSatterthwaite LivingstonAmthor CoreyBlakely Robert IanBoynton Charles DBrouillette DanThuillier Lawrence J.