B Riley Principal Merger Corp II

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B Riley Principal Merger Corp II
TickerEOSE
CIK #0001805077
CUSIP29415C101
SectorReal Estate & Construction - Blank Checks
Address299 Park Avenue 21St Floor, New York, NY 10171
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
EOS Energy Enterprises Inc 2023-05-24 Exemption: 506(b) · Remaining: $9,004,950 · Duration: More than one year · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001805077] 10-K
[0001805077] 10-Q
[0001805077] 3
[0001805077] 4
[0001805077] 8-K
[0001805077] D
[0001805077] SC 13D
[0001805077] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Capital Management LLC EOS Energy Enterprises Inc [2026-04-29] 0.0
Susquehanna Securities LLC EOS Energy Enterprises Inc [2025-08-14] 0.0
Vanguard Group Inc EOS Energy Enterprises Inc [2025-07-29] 0.0
BlackRock Inc EOS Energy Enterprises Inc [2025-07-17] 0.0
Cerberus Capital Management II LP EOS Energy Enterprises Inc [2024-06-28] 16.7
CVI Investments Inc EOS Energy Enterprises Inc [2023-04-21] 7.0
Legal & General Investment Management Ltd EOS Energy Enterprises Inc [2023-02-14] 0.0
Electron Capital Partners LLC EOS Energy Enterprises Inc [2022-09-30] 5.3
Point72 Asset Management LP EOS Energy Enterprises Inc [2022-09-13] 5.1
Ya II PN Ltd EOS Energy Enterprises Inc [2022-05-03] 0.0
Spring Creek Capital LLC EOS Energy Enterprises Inc [2022-05-03] 0.0
Legal & General Investment Management Ltd EOS Energy Enterprises Inc [2022-02-14] 5.4
Invesco Ltd EOS Energy Enterprises Inc [2022-02-14] 5.1
Spring Creek Capital LLC EOS Energy Enterprises Inc [2021-07-16] 13.3
Reservoir Capital Group LLC EOS Energy Enterprises Inc [2021-02-16] 5.0
Riverview Group LLC EOS Energy Enterprises Inc [2021-01-07] 3.3
Altenergy LLC EOS Energy Enterprises Inc [2020-11-27] 13.6
Basso Capital Management LP B Riley Principal Merger Corp II [2020-11-04] 5.21
B Riley Financial Inc B Riley Principal Merger Corp II [2020-06-01] 22.18
Form 3/4/5 Filer 2011 - 2026
Eos Energy Enterprises Inc
Mastrangelo Joe
Kroeker Nathan
Silberman Michael W
Puri Sumeet
Buczkowski Michelle
Demby Claude
Bornstein Jeffrey S
Nigro Joseph
McNeil Jeff
Lagi Alessandro
Dimitrief Alexander
Nixon Gregory S
Urban David
Walters Marian
Fick Nathaniel
Stidolph Russell Monoki
Javidi Eric M
Cerberus Capital Management II LP
CCM Denali Equity Holdings LP
CCM Denali Equity Holdings GP LLC
Robinson Nicholas P
Zibelman Audrey Ann
Berube Melissa
Wood River Capital LLC
Koch Industries LLC
Tedone John J
Gonzales Randall B
Shribman Daniel
BRF Investments LLC
BRC Group Holdings Inc
Riley Bryant R
Spring Creek Capital LLC
Singh Krishna Pal
Kurada Sagar
AltEnergy Storage V LLC
AltEnergy Transmission LLC
AltEnergy LLC
AltEnergy Storage Bridge LLC
AltEnergy Storage Bridge Phase II LLC
AltEnergy Storage VI LLC
AltEnergy Storage II LLC
BRC Partners Management GP LLC
B Riley Capital Management LLC
BRC Partners Opportunity Fund LP
B Riley Principal Investments LLC
B Riley Principal Sponsor Co II LLC
FBR Capital Markets & Co
SCC Holdings LLC
Markopoulos Jody
Treece Mack
AltEnergy Storage LLC
Strauss Fabian Celestin
Iyer Balakrishnan Gopalan
Young Kenneth M
Presutti Timothy M
Kempner James L
Bartels Patrick J Jr
Suss Robert
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Urban David
Common Stock
2026-03-09 Buy 16,250 $6.16 100,100
Mastrangelo Joe
Common Stock
2026-03-04 Buy 23,900 $6.58 157,262
Mastrangelo Joe
Common Stock
2026-03-02 Buy 60,000 $5.75 345,000
Dimitrief Alexander
Common Stock
2026-03-02 Buy 15,000 $6.04 90,600
Kroeker Nathan
Common Stock
2026-01-26 Sell 50,000 $16.04 802,000
Silberman Michael W
Common Stock
2026-01-23 Sell 41,667 $17.74 739,173
Kroeker Nathan
Common Stock
2026-01-23 Option exercise 100,000 $0.00
Kroeker Nathan
Restricted Stock Units · derivative
2026-01-23 Option exercise 100,000 $0.00
Silberman Michael W
Restricted Stock Units · derivative
2026-01-22 Option exercise 83,334 $0.00
Silberman Michael W
Common Stock
2026-01-22 Option exercise 83,334 $0.00
Walters Marian
Restricted Stock Units · derivative
2025-12-22 Grant 1,782 $0.00
Nigro Joseph
Restricted Stock Units · derivative
2025-12-22 Grant 3,565 $0.00
Stidolph Russell Monoki
Common Stock
2025-12-08 Option exercise 30,788 $14.43 444,271
Stidolph Russell Monoki
Common Stock
2025-12-08 Tax withheld 18,793 $14.89 279,828
Stidolph Russell Monoki
Common Stock
2025-12-08 Option exercise 120,633 $2.32 279,869
Stidolph Russell Monoki
Common Stock
2025-12-08 Tax withheld 30,020 $14.80 444,296
Stidolph Russell Monoki
Common Stock
2025-12-08 Tax withheld 11,491 $14.89 171,101
Stidolph Russell Monoki
Common Stock
2025-12-08 Option exercise 145,018 $1.18 171,121
Stidolph Russell Monoki
Common Stock
2025-12-08 Sell 235,367 $14.89 3,504,615
Stidolph Russell Monoki
Stock Option (Right to Buy) · derivative
2025-12-08 Option exercise 145,018 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 329 258,736,888
2025-12-31 331 244,101,677
2025-09-30 286 212,502,495
2025-06-30 227 178,276,479
2025-03-31 185 107,934,287
2024-12-31 161 96,855,086
2024-09-30 132 68,757,718
2024-06-30 132 69,063,965
2024-03-31 139 94,456,439
2023-12-31 143 108,893,172
2023-09-30 142 79,231,397
2023-06-30 128 79,586,492
Form 13F Holdings
Firm Period DFND Voting Shares
Ardsley Advisory Partners LP [2026-06-30] SOLE 550,000 550,000
Handelsbanken Fonder AB [2026-06-30] SOLE 0 147,500
Lauer Wealth LLC [2026-06-30] SOLE 0 129,920
Bouvel Investment Partners LLC [2026-06-30] SOLE 115,858 115,858
Richards Merrill & Peterson Inc [2026-06-30] SOLE 0 49,045
Heck Capital Advisors LLC [2026-06-30] SOLE 46,300 46,300
Apella Capital LLC [2026-06-30] SOLE 0 39,777
Rinkey Investments [2026-06-30] SOLE 0 35,877
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 0 30,766
Byrne Asset Management LLC [2026-06-30] SOLE 24,100 24,100
Independent Financial Group LLC [2026-06-30] SOLE 0 22,841
Sequoia Financial Advisors LLC [2026-06-30] SOLE 0 19,900
Gainplan LLC [2026-06-30] SOLE 0 18,860
Farther Finance Advisors LLC [2026-06-30] SOLE 0 16,914
Ledgewood Wealth Advisors LLC [2026-06-30] SOLE 0 15,000
Net Worth Advisory Group [2026-06-30] SOLE 14,832 14,833
Prospera Financial Services Inc [2026-06-30] SOLE 0 14,300
Embree Financial Group [2026-06-30] SOLE 0 12,890
Strategic Investment Solutions Inc /IL [2026-06-30] SOLE 0 2,940
JFS Wealth Advisors LLC [2026-06-30] SOLE 0 2,267
Gamma Investing LLC [2026-06-30] DFND 2,143 2,143
Spire Wealth Management [2026-06-30] SOLE 0 961
IFP Advisors LLC [2026-06-30] SOLE 886 886
Fortitude Family Office LLC [2026-06-30] SOLE 236 236
Arlington Trust Co LLC [2026-06-30] SOLE 26 26
Hughes Financial Services LLC [2026-06-30] SOLE 3 3
MassMutual Private Wealth & Trust FSB [2026-06-30] SOLE 0 0
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