Velarion · Company Intelligence
Compensation Brief
Fiscal year 2025 · Filings through 2026-06-05

Eos Energy Enterprises (EOSE)

Fiscal year 2025 executive and director compensation, incentive-plan design, equity activity, and governance — every figure in this brief is traceable to its exact location in the company’s SEC filing — the document, the section, the page, and the table, linked directly.

$4,854,452
Joe Mastrangelo total, FY2025
CEO pay percentile vs peers
CEO-to-median pay ratio
75.26%
Say-on-pay support, latest vote
Companies that benchmark against EOSE
No companies currently name EOSE as a compensation peer in their most recent disclosure.

This is the complete answer, not a partial one — the list is never padded.

01

Summary Compensation Table — fiscal year 2025

Named executive officerSalaryBonusStock awardsOption awardsNon-equity incentivePension / NQDCAll otherTotal
Joe Mastrangelo$708,269$0$4,007,193$0$0$0$138,990$4,854,452
Chief Executive Officer
Michelle Buczkowski319,90490,0003,703,97000010,3064,124,180
Chief Administration Officer
Eric Javidi115,3855,0002,259,332000503,8012,883,518
Former Chief Financial Officer
Nathan Kroeker470,00002,166,05400017,5552,653,609
Chief Commercial Officer and Interim Chief Financial Officer

A dash means the company reported no figure in that column; 0 means it reported zero. Figures are as printed in the filing, without adjustment.

Three-year trend — total compensation per named executive

Named executive officerFY2025 totalFY2024 totalFY2023 totalΔ FY20242025
Joe Mastrangelo$4,854,452
Michelle Buczkowski4,124,180
Eric Javidi2,883,518
Nathan Kroeker2,653,609

Prior-year totals as disclosed in the corresponding proxy; deltas are computed values with the derivation shown in the register.

02

Equity transactions since the proxy statement was filed

No insider equity transactions reported since the proxy statement.

03

Grants of plan-based awards — fiscal year 2025

ExecutiveAwardGrant dateThresholdTargetGrantedMaximumGrant-date fair value
Michelle BuczkowskiRSU68,814
Michelle BuczkowskiPRSU34,407
Eric JavidiRSU454,594
Nathan KroekerPRSU105,868
Nathan KroekerRSU211,735
Joe MastrangeloPRSU195,855
Joe MastrangeloRSU391,710
03b

Vehicle mix — grant-date fair value by award type

Grant-level vehicle detail not disclosed.

% performance-vested = PSU grant-date fair value ÷ (RSU + PSU + Options), a computed value with the derivation shown in the register.

04

Outstanding equity awards at fiscal year-end 2025

ExecutiveAwardShares unvestedExercise priceMarket value unvested
Joe MastrangeloRSU391,710$4,488,997
Joe MastrangeloRSU1,000,00011,460,000
Joe MastrangeloRSU666,6677,640,004
Nathan KroekerRSU662,5007,592,250
Nathan KroekerRSU441,6675,061,504
Joe MastrangeloRSU254,3042,914,324
Michelle BuczkowskiRSU234,7422,690,143
Nathan KroekerRSU211,7362,426,495
Nathan KroekerRSU211,3752,426,483
Michelle BuczkowskiRSU200,0002,292,000
Nathan KroekerRSU105,0081,203,392
Nathan KroekerRSU100,0001,146,000
Joe MastrangeloRSU97,9281,122,249
Michelle BuczkowskiRSU68,814788,608
Nathan KroekerRSU53,610614,371
Nathan KroekerRSU52,954608,624
Michelle BuczkowskiRSU17,204197,152
Joe MastrangeloOption691,6568.67
Joe MastrangeloOption345,8288.67
Joe MastrangeloOption200,0001.34
05

Incentive-plan design — the Compensation Discussion & Analysis

Compensation should be directly linked to performance and correlated to stockholder value, balancing fixed and performance-based elements to attract, motivate, and retain a highly qualified executive team.

CEO STI target (% of salary)
CEO LTI target (% of salary)
Independent consultantPay Governance
Clawback policytrue
Anti-hedging
Anti-pledging
06

Say-on-pay — recent advisory votes

Meeting yearMeeting dateForAgainstAbstainSupportOutcome
20262026-06-03131,373,68343,181,3051,933,71775.26%Passed
20242024-05-0154,726,31341,020,6734,489,58657.16%Passed
20232023-05-1629,113,83415,784,8211,328,27664.84%Passed

Rows are labeled by annual-meeting year, with the meeting date beside each; the vote held in a given year acts on the prior fiscal year's compensation.

Say-on-pay — history, company's computation

Meeting yearMeeting dateApproval — company's computation
20262026-06-0375.26%a
20242024-05-0157.16%b
20232023-05-1664.84%c

a. Voting standard not stated in the filing.

b. Voting standard not stated in the filing.

c. Voting standard not stated in the filing.

Approval percentages are the company's own reported computations under its own stated standard, not recomputed by Velarion. Where a company does not state a standard, none is assumed.

08

Director compensation — fiscal year 2025

DirectorCash feesStock awardsOption awardsNon-equity incentiveAll otherTotal
Russell StidolphIndependent · Board Chair · Departed during FY$25,000$200,606$0$0$225,606
Jeff BornsteinIndependent · Audit (Chair) · Compensation · Nominating/Governance25,000200,60600225,606
Joseph NigroIndependent · Audit · Leadership Development Compensation · Newly elected19,167191,73900210,906
Alex DimitriefIndependent · Audit · Nominating and Corporate Governance25,000175,52900200,529
Marian "Mimi" WaltersIndependent · Audit · Compensation · Nominating/Governance (Chair)25,000173,42300198,423
Jeffrey McNeilIndependent · Audit · Compensation (Chair) · Nominating/Governance25,000150,45300175,453
Claude DembyIndependent · Audit · Nominating and Corporate Governance25,000150,45300175,453
David UrbanIndependent · Audit · Compensation · Nominating/Governance25,000150,45300175,453
Gregory NixonIndependent · Audit · Compensation · Nominating/Governance19,444150,45300169,897
Joe MastrangeloEmployee director0
09

Board fee structure and ownership guideline

Annual cash retainer$25,000
Annual equity retainer$150,000
Per board meeting fee
Committee chair fees (audit / comp / nom-gov)50,000 / 25,000 / 25,000
Stock ownership guidelineEstablished Stock Ownership Guidelines of the Company to ensure that the interests of the Company’s non-employee directors and executives are aligned with the interests of stockholders
09b

Total cost of the board

ComponentFY2025
Cash retainers and fees$213,611
Equity awards (grant-date value)$1,543,715
All other compensation$0
Total cost of the board$1,757,326

Computed as the sum of the director compensation table rows above; inputs and formula shown in the register.

10b

Chief executive pay against the peer group

Most recent fiscal-year chief executive compensation at each disclosed peer, taken from that company's own proxy statement.

RankCompanyFYChief executiveSalaryStock awardsOption awardsNon-equity incentiveTotal
1Eos Energy Enterprises2025Joe Mastrangelo$708,269$4,007,193$0$0$4,854,452

Each peer's compensation is from its most recently filed proxy; fiscal years differ by company. Each peer's figures come from its own filings; the subject company is highlighted. Peers whose chief executive compensation is outside our coverage universe are stated as such, never left blank.

11

Source register

Each figure's location is given both for the eye (section · page · table · row · column) and for a script (table/row/column index and exact character span in the filed document). Any figure can be independently confirmed against the source.

#SupportsDocumentFiledAccessionLocation in document
1Section 01, Joe MastrangeloDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation”. As printed: 4,854,452. Filing ↗machine: r3 · c21 · span 506941–506950
2Section 01, Michelle BuczkowskiDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation”. As printed: 4,124,180. Filing ↗machine: r9 · c21 · span 524219–524228
3Section 01, Eric JavidiDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation”. As printed: 2,883,518. Filing ↗machine: r10 · c21 · span 527553–527562
4Section 01, Nathan KroekerDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation”. As printed: 2,653,609. Filing ↗machine: r6 · c21 · span 515573–515582
5Section 03, Michelle Buczkowski RSUDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation” · grants of plan-based awards table. Filing ↗
6Section 03, Michelle Buczkowski PRSUDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation” · grants of plan-based awards table. Filing ↗
7Section 03, Eric Javidi RSUDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation” · grants of plan-based awards table. Filing ↗
8Section 03, Nathan Kroeker PRSUDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation” · grants of plan-based awards table. Filing ↗
9Section 03, Nathan Kroeker RSUDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation” · grants of plan-based awards table. Filing ↗
10Section 03, Joe Mastrangelo PRSUDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation” · grants of plan-based awards table. Filing ↗
11Section 03, Joe Mastrangelo RSUDEF 14A2026-04-140001628280-26-025071Section “Executive Compensation” · grants of plan-based awards table. Filing ↗
12Section 08, Russell StidolphDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 225,606. Filing ↗machine: span 386866–386873
13Section 08, Jeff BornsteinDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 225,606. Filing ↗machine: span 389039–389046
14Section 08, Joseph NigroDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 210,906. Filing ↗machine: span 401775–401782
15Section 08, Alex DimitriefDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 200,529. Filing ↗machine: span 393231–393238
16Section 08, Marian "Mimi" WaltersDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 198,423. Filing ↗machine: span 397404–397411
17Section 08, Jeffrey McNeilDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 175,453. Filing ↗machine: span 395314–395321
18Section 08, Claude DembyDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 175,453. Filing ↗machine: span 391120–391127
19Section 08, David UrbanDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 175,453. Filing ↗machine: span 399484–399491
20Section 08, Gregory NixonDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 169,897. Filing ↗machine: span 404167–404174
21Section 08, Joe MastrangeloDEF 14A2026-04-140001628280-26-025071Section “Director Compensation”. As printed: 0. Filing ↗
22Section 06, 2026 voteForm 8-K2026-06-050001628280-26-041078Item 5.07 · say-on-pay result. As reported: 75.26% (votes for as printed: 131,373,683). Filing ↗
23Section 06, 2024 voteForm 8-K2024-05-030001805077-24-000046Item 5.07 · say-on-pay result. As reported: 57.16% (votes for as printed: 54,726,313). Filing ↗
24Section 06, 2023 voteForm 8-K2023-05-180001628280-23-018770Item 5.07 · say-on-pay result. As reported: 64.84% (votes for as printed: 29,113,834). Filing ↗
25Section 09b board cost (computed)ComputedcomputedCash 213,611 + equity 1,543,715 + all other 0 = 1,757,326, summed across the director compensation table rows.machine: formula: Σ = 1,757,326
26Eos Energy Enterprises (subject), Section 10b CEO totalDEF 14A2026-04-140001628280-26-025071CEO total compensation as printed in Eos Energy Enterprises's own proxy. As printed: 4,854,452. Filing ↗machine: r3 · c21 · span 506941–506950