ERock

EROC · NYSE

$8.65−$0.24 (−2.70%)TodayMarket closed ·
Prev close $8.89

Who owns EROC

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 18.0% of EROC’s shares.

  • Energy Impact Partners LLC8.9%
  • Carrington (John Eugene)1.5%
  • Froutan (Paul)1.4%
  • T. Rowe Price Associates, Inc.1.0%
  • Next 6 largest institutions5.2%
  • All other shareholders82.0%
Top institutional holders of EROC
HolderShares% of shares
Energy Impact Partners LLC19.46M8.87%
Carrington (John Eugene)3.29M1.50%
Froutan (Paul)3.13M1.42%
T. Rowe Price Associates, Inc.2.27M1.03%
Balyasny Asset Management LP2.10M0.96%
Cinctive Capital Management LP1.95M0.89%
Encompass Capital Advisors, LLC1.90M0.87%
Zimmer Partners, LP1.89M0.86%
MFS Investment Management1.78M0.81%
Columbia Threadneedle Investments (US)1.71M0.78%

Largest mutual fund holders

Top mutual fund holders of EROC
HolderShares% of shares
Columbia Small Cap Growth Fund1.57M0.72%
Vanguard Total Stock Market Index Fund919.59K0.42%
Franklin Small Cap Growth Fund824.84K0.38%
AB Small Cap Growth Portfolio819.21K0.37%
MFS New Discovery Fund668.98K0.30%

Insider trades

Form 4 filings by officers, directors and large holders

Insiders made no open-market buys or sales of EROC in the last 6 months.

Latest EROC insider transactions
InsiderTypeSharesValue
McAndrew Walter Thomas Jr.Sale93.02K—
McAndrew Walter Thomas Jr.Sale372.09K—
McAndrew Walter Thomas Jr.Other93.02K—
McAndrew Walter Thomas Jr.Other372.09K—
McAndrew Walter Thomas Jr.Other50.55K—

Short interest

Settled Sep 30, 2026

Shares short
12.00M
Days to cover
4.34
% of shares outstanding
5.47%
Average daily volume
2.76M
Change since last report
+29.7%

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