StockData
EROCNYSEElectrical Industrial ApparatusFiscal year ends December 31

ERock, Inc.

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 12, 2026
$8.89−0.40 (-4.31%)

Close on Oct 19, 2026

Market cap
$428.27M
P/E (TTM)
–
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
15.6%
34M of 219M shares
Institutional holders
89
89 new, 0 sold out
Net institutional buying
34M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
McAndrew Walter Thomas Jr.22,587,11831.90%13G (passive) amendmentJun 11, 2026
Energy Impact Partners LLC102,813,84678.10%13D (active)Jun 11, 2026

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of EROCValueChange% of portfolio
Price T Rowe Associates Inc /Md/2,275,9831.04%$33.00KNew0.00%
Balyasny Asset Management L.P.2,099,6190.96%$30.44MNew0.04%
Cinctive Capital Management LP1,947,2610.89%$28.24MNew1.04%
Encompass Capital Advisors LLC1,900,0000.87%$27.55MNew0.98%
Zimmer Partners, LP1,891,7450.86%$27.43MNew0.63%
Ameriprise Financial Inc1,825,1790.83%$26.47MNew0.01%
Massachusetts Financial Services Co /Ma/1,776,2650.81%$25.76MNew0.01%
Alliancebernstein L.P.1,702,1210.78%$24.68MNew0.01%
Citadel Advisors LLC1,505,9970.69%$21.84MNew0.00%
Value Aligned Research Advisors, LLC1,345,9200.61%$19.52MNew0.05%
Alyeska Investment Group, L.P.1,276,3910.58%$18.51MNew0.05%
Vanguard Portfolio Management LLC1,116,3750.51%$16.19MNew0.00%
Pictet Asset Management Holding SA1,056,6810.48%$15.32MNew0.01%
Vanguard Capital Management LLC1,030,7280.47%$14.95MNew0.00%
CIBC Bancorp USA Inc.1,000,0000.46%$14.50MNew0.02%
Seven Grand Managers, LLC500,0000.23%$7.25MNew0.29%
Wellington Management Group Llp498,5080.23%$7.23MNew0.00%
Reaves W H & Co Inc435,0000.20%$6.31MNew0.10%
Franklin Resources Inc434,9320.20%$6.31MNew0.00%
Jane Street Group, LLC416,4310.19%$6.04MNew0.00%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 20268934M15.6%89 / 00 / 034M0M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of EROCValue% of fundAs of
Vanguard Total Stock Market Index Fund919,5920.42%$13.33M0.00%Jun 30, 2026
Franklin Small Cap Growth Fund824,8390.38%$8.46M0.34%Jul 31, 2026
AB Small Cap Growth Portfolio819,2120.37%$11.88M0.38%Jun 30, 2026
Vanguard Small-Cap Index Fund662,6990.30%$9.61M0.01%Jun 30, 2026
T. Rowe Price Real Assets Fund, Inc.459,2270.21%$6.66M0.07%Jun 30, 2026
T. Rowe Price New Era Fund441,1960.20%$6.40M0.22%Jun 30, 2026
SmallCap Growth Fund I412,2590.19%$4.23M0.17%Jul 31, 2026
T. Rowe Price New Horizons Fund, Inc.315,3380.14%$4.57M0.03%Jun 30, 2026
Federated Hermes Kaufmann Small Cap Fund281,1410.13%$2.88M0.10%Jul 31, 2026
Bridge Builder Small/Mid Cap Value Fund273,8950.12%$3.97M0.04%Jun 30, 2026
MFS New Discovery Series246,3150.11%$3.57M0.44%Jun 30, 2026
Vanguard Small-Cap Value Index Fund209,7450.10%$3.04M0.00%Jun 30, 2026
Vanguard Small-Cap Growth Index Fund198,7400.09%$2.88M0.01%Jun 30, 2026
Emerald Growth Fund111,3960.05%$1.14M0.08%Jul 31, 2026
Columbia Variable Portfolio - Small Company Growth Fund107,5000.05%$1.56M0.59%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
John Eugene CarringtonSee Remarks, Director––Jun 9, 2026
Corey AmthorPresident5,623,3082.56%Jun 12, 2026
Robert Ian BlakelyChief Financial Officer4,487,5282.05%Jun 12, 2026
Davis ZapffeGeneral Counsel and Secretary––Jun 9, 2026
Paul FroutanChief Operating Officer––Jun 9, 2026
Hans KoblerDirector, 10% owner102,706,10746.81%Jun 15, 2026
Dan BrouilletteDirector13,0240.01%Jun 12, 2026
Livingston SatterthwaiteDirector13,0240.01%Jun 12, 2026
Charles D. BoyntonDirector13,0240.01%Jun 12, 2026
Mark R. PattersonDirector13,0240.01%Jun 12, 2026
Lindsay LugerDirector––Jun 9, 2026
Sameer ReddyDirector––Jun 9, 2026
Walter Thomas McAndrew Jr.10% owner23,052,23410.51%Sep 4, 2026
Flagship Fund I. ER Holdings LLC EIP10% owner89,396,41640.75%Jun 15, 2026
Impact Fund (FT-B) LP Energy10% owner––Jun 15, 2026
ER Holdings LLC EIF10% owner––Jun 15, 2026
Impact Fund (FT-D) LP Energy10% owner102,706,10746.81%Jun 15, 2026
Impact Partners LLC Energy10% owner––Jun 15, 2026

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Walter Thomas McAndrew Jr.
10% owner
Jun 11, 2026Other+50,550––50,550
Walter Thomas McAndrew Jr.
10% owner
Jun 11, 2026Other−372,093––5,996,469
Walter Thomas McAndrew Jr.
10% owner
Jun 11, 2026Other−93,023––16,540,099
Impact Fund (FT-D) LP Energy
10% owner
Jun 11, 2026Other+19,350,897––19,350,897
Impact Fund (FT-D) LP Energy
10% owner
Jun 11, 2026Other−6,041,206––83,355,210
Hans Kobler
Director, 10% owner
Jun 11, 2026Other+19,350,897––19,350,897
Hans Kobler
Director, 10% owner
Jun 11, 2026Other−6,041,206––83,355,210
Livingston Satterthwaite
Director
Jun 11, 2026Award+13,024––13,024
Robert Ian Blakely
Chief Financial Officer
Jun 11, 2026Returned to company−449,233––4,487,528
Corey Amthor
President
Jun 11, 2026Returned to company−617,442––4,088,432
Charles D. Boynton
Director
Jun 11, 2026Award+13,024––13,024
Mark R. Patterson
Director
Jun 11, 2026Award+13,024––13,024
Dan Brouillette
Director
Jun 11, 2026Award+13,024––13,024

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.