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Mark Duff

Mark Duff

Chief Executive Officer at PERMA FIX ENVIRONMENTAL SERVICES
CEO
Executive
Board

About Mark Duff

Mark J. Duff (age 62) is President and CEO of Perma-Fix Environmental Services, Inc. (PESI) since September 2017 and a director since April 2023, with 40+ years of management and technical experience across DOE/DOD environmental and construction markets; he holds an MBA (University of Phoenix) and a B.S. (University of Alabama) . During his tenure, 2024 produced a net loss of $19.98M with cumulative TSR value of $175 on a fixed $100 baseline (vs. 2023 net income of $0.49M and TSR $124) per Pay vs. Performance disclosure, framing recent headwinds after a positive 2023 . The Board separates Chair and CEO roles (Chair: Larry M. Shelton) and maintains a Lead Independent Director (Mark A. Zwecker), with Duff classified as a non‑independent director due to his executive role .

Past Roles

OrganizationRoleYearsStrategic impact
Perma-Fix Environmental ServicesPresident & CEOSep 2017–presentUpgraded treatment facilities, broadened capabilities (including PFAS treatment initiatives), expanded market penetration, and rebuilt Services segment BD programs .
Perma-Fix Environmental ServicesExecutive (joined company)2016–presentDeveloped and implemented growth strategies across Treatment and Services segments .
DOE/DOD markets (various employers)Corporate officer, senior project manager, co‑founder of a consulting firm, federal employee40+ yearsLed complex radioactive/hazardous waste remediation and operations across government and commercial sectors .

External Roles

OrganizationRoleYearsStrategic impact
Consulting firm (unnamed)Co‑founderNot disclosedApplied domain expertise to environmental/construction projects in DOE/DOD markets .

Fixed Compensation

Multi-year CEO compensation (as reported):

Metric (USD)202220232024
Base salary$374,870 $382,367 $417,155
Bonus
Option awards (grant-date FV)$140,840
Non‑equity incentive (MIP)$187,435 — (no 2024 MIP earned)
All other comp (benefits/auto/401k)$41,270 $37,453 $39,306
Total$416,140 $748,095 $456,461

Notes:

  • 2024 base salary reflects a 7% increase effective Jan 1, 2024 approved in Oct 2023 .
  • No 2024 MIP payout for any NEO (EBITDA gate not met) .

Performance Compensation

2024 MIP design (CEO):

  • Target incentive dollars at “100% of Plan”: $208,578 (with total target compensation $625,733). Gate: No payout on any component unless ≥75% of EBITDA target achieved .
  • Metrics and example payout schedule at plan thresholds: Revenue, EBITDA, Health & Safety (WCLTA), and Permit/License Violations; each has defined dollar payouts by performance bands; total at 100% Plan is $208,578 . No payout earned for 2024 .

2023 MIP outcomes (CEO):

  • Components earned: Revenue (90–110%) $18,744; EBITDA (90–110%) $112,461; Health & Safety (90–110%) $28,115; Permit/License Violations (>150%) $28,115; Total $187,435 .

Detailed metric table:

MetricGate2023 Target band achieved2023 payout ($)2024 payout ($)
Revenue≥75% EBITDA must be met for any payout90%–110%$18,744 $0 (gate not met)
EBITDA≥75% EBITDA must be met for any payout90%–110%$112,461 $0
Health & Safety (WCLTA)≥75% EBITDA90%–110%$28,115 $0
Permit/License Violations≥75% EBITDA>150%$28,115 $0

2025 MIP structure remains similar for CEO (Revenue, EBITDA, H&S, Permit/License Violations with the same gate ≥75% EBITDA); CEO target and bands are unchanged from 2024 .

Pay vs Performance context (PEO/Company):

YearPEO “Compensation Actually Paid” ($)TSR value of initial $100Net income (loss) ($)
2022$276,985 $56 $(3,816,000)
2023$999,730 $124 $485,000
2024$701,902 $175 $(19,979,000)

Equity Ownership & Alignment

Beneficial ownership (as of June 2, 2025):

ItemAmount
Shares owned of record133,659
Options immediately exercisable58,000
Total beneficial ownership191,659
% of outstanding shares1.04% (out of 18,452,227)

Outstanding and recently exercised options (CEO):

Grant dateTypeExercise priceExercisable (12/31/24)Unexercisable (12/31/24)ExpirationNotes
1/17/2019ISO$3.1525,000 1/17/2025 Exercised 1/8/2025 via net share settlement; 7,443 shares withheld at $10.58 FMV to cover $78,750 exercise; 17,557 shares issued .
10/14/2021ISO$7.00530,000 20,000 10/14/2027 6‑year term; vests 20% per year over five years starting 1st anniversary .
1/19/2023ISO$3.9514,000 56,000 1/19/2029 6‑year term; vests 20% per year over five years starting 1st anniversary .

Recent insider exercises (CEO):

DateShares exercisedMethodStrikeFMV at exerciseNet shares issuedValue realized
5/22/2023100,000 Net share settlement$3.65 $11.05 66,968 $740,000
1/8/202525,000 Net share settlement$3.15 $10.58 17,557 N/A (disclosed as shares withheld to cover exercise)
  • Vested vs. unvested: As of 12/31/2024, 69,000 options were exercisable and 76,000 unexercisable; the 2021 and 2023 ISOs vest 20% annually over five years, creating predictable future vesting windows (potential selling pressure around 10/14 and 1/19 if exercises occur) .
  • In-the-money value (12/31/2024): The company’s severance/CIC table implies CEO’s in-the-money option value of $899,650 at year-end, excluding out-of-the-money awards .
  • Hedging/pledging: The Company’s Stock Trading Policy strongly discourages short sales, margin accounts, standing/limit orders, or other speculative transactions for directors/officers/employees; no pledging is disclosed in the proxy .

Employment Terms

TermDetails
Contract termCEO employment agreement effective Apr 20, 2023; initial 3-year term to Apr 20, 2026; auto-renews 1 year unless either party gives 6 months’ notice .
Base salary treatmentMay be increased but not reduced, per Compensation Committee discretion .
Annual incentivesManagement Incentive Plan (MIP) approved annually; 2024 and 2025 MIPs use Revenue, EBITDA, H&S (WCLTA), and Permit/License Violations with ≥75% EBITDA gate .
Severance (good reason or without cause)Accrued amounts plus 2x base salary; plus either 2x prior-year MIP (if not yet paid) or an additional 1x prior-year MIP (if already paid); plus lump-sum Cash Medical Continuation Benefit (18× monthly COBRA premium for covered dependents) .
Change in control (CIC)All stock options immediately exercisable in full upon termination in connection with a CIC and exercisable through original term; cash severance same multiple structure as above when termination occurs within 24 months after a CIC .
DeathAccrued amounts and Cash Medical Continuation Benefit; all options immediately exercisable in full and exercisable for the lesser of original term or 12 months post-death .
Other terminationsIf CEO resigns without good reason: Accrued amounts and any MIP payable; options otherwise follow plan rules (vesting ceases, standard post-termination exercise periods) .
Post-termination option window (non‑CIC)Good reason/without cause: all options vest; exercisable for the lesser of original term or 60 days from termination; death: lesser of original term or 12 months .
ClawbackCompany maintains a clawback policy compliant with SEC/Nasdaq rules for incentive-based compensation tied to financial reporting measures (3-year lookback) .
Trading/blackoutsStock Trading Policy governs purchases/sales by directors/officers/employees; discourages short sales, margin accounts, standing/limit orders; provides blackout procedures .

Potential payments if terminated at 12/31/2024 (illustrative per proxy):

ComponentGood reason/without causeChange in control
Base salary + accrued amounts$843,790 $843,790
Performance compensation$0 (no 2024 MIP earned) $0
Stock options (intrinsic value)$899,650 $899,650
Cash medical continuation$36,540 $36,540

Board Governance

  • Board/committees: Duff is a director (since April 2023), but not independent due to employment; the Board majority is independent and all Audit and Compensation committee members are independent under Nasdaq/SEC standards .
  • Leadership structure: Separate Chair (Larry M. Shelton) and CEO; Lead Independent Director (Mark A. Zwecker) coordinates non‑employee director sessions and liaison roles .
  • Attendance: The Board met six times in 2024; no director attended fewer than 75% of meetings; all attended the 2024 annual meeting .
  • Director compensation: Employee-directors (including Duff) receive no director fees/equity under the Outside Directors Plan .

Director Service and Roles for Duff

AttributeDetail
Board service startApril 2023
IndependenceNot independent (employee status)
CommitteesNone disclosed for Duff (Audit/Comp/Gov&Nom committees composed of independent directors)
Dual-role implicationsCEO + Director mitigated by independent Chair, Lead Independent Director, and independent committees .

Investment Implications

  • Pay-for-performance alignment: 2024 yielded no MIP payout due to the ≥75% EBITDA gate, compressing realized cash pay despite base salary increases—positive alignment but highlights sensitivity to profitability execution .
  • Option-driven incentives and overhang: Duff holds significant unvested ISOs that vest 20% annually (2021 and 2023 grants), preserving long-dated equity alignment; intrinsic value at YE 2024 was $0.90M, a meaningful lever for shareholder value creation if execution improves .
  • Trading/flow signals: Net-share settlements in 2023 and Jan 2025 indicate exercise activity around vesting/expiration windows; future vesting anniversaries (10/14 and 1/19) may be watched for potential exercise/sale-related flow, subject to blackout/trading policy constraints .
  • Retention/transition risk: Severance terms (2x salary + MIP mechanics + option acceleration) are competitive and double-trigger CIC provisions (with 24-month window) reduce entrenchment risks while supporting retention through uncertain cycles .
  • Governance quality: Separation of Chair and CEO, independent lead director, independent committees, a formal clawback, and robust committee activity (especially Audit) mitigate dual-role concerns and support oversight during periods of volatility (2024 net loss) .