Mark Duff

CIK 1678382 · View on SEC EDGAR ↗

Insider

First SEC filing: July 6, 2016 · Latest: July 6, 2016

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 13 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

13 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Sept. 4, 2024 PESI P 500 $9.91 $4,955 112,702 Direct +0.45% Acquired 68.9% (price as of 2026-08-24)
Sept. 4, 2024 PESI P 350 $9.95 $3,482 113,052 Direct +0.31% Acquired 68.2% (price as of 2026-08-24)
Sept. 3, 2024 PESI P 500 $10.48 $5,240 111,452 Direct +0.45% Acquired 59.7% (price as of 2026-08-24)
Sept. 3, 2024 PESI P 750 $10.07 $7,552 112,202 Direct +0.67% Acquired 66.2% (price as of 2026-08-24)
Dec. 1, 2023 PESI P 750 $7.07 $5,302 108,702 Direct +0.69% Acquired 136.8% (price as of 2026-08-24)
Dec. 1, 2023 PESI P 750 $7.27 $5,452 109,452 Direct +0.69% Acquired 130.3% (price as of 2026-08-24)
Dec. 1, 2023 PESI P 750 $7.28 $5,460 110,202 Direct +0.69% Acquired 129.9% (price as of 2026-08-24)
Dec. 1, 2023 PESI P 750 $7.00 $5,250 110,952 Direct +0.68% Acquired 139.1% (price as of 2026-08-24)
Nov. 22, 2022 PESI P 1,000 $3.89 $3,890 40,984 Direct +2.50% Acquired 330.3% (price as of 2026-08-24)
Sept. 7, 2022 PESI P 500 $4.76 $2,380 38,984 Direct +1.30% Acquired 251.7% (price as of 2026-08-24)
Sept. 7, 2022 PESI P 1,000 $4.75 $4,750 39,984 Direct +2.57% Acquired 252.4% (price as of 2026-08-24)
May 12, 2022 PESI P 922 $5.60 $5,163 37,484 Direct +2.52% Acquired 198.9% (price as of 2026-08-24)
May 12, 2022 PESI P 1,000 $5.50 $5,500 38,484 Direct +2.67% Acquired 204.4% (price as of 2026-08-24)
May 11, 2022 PESI P 78 $5.60 $437 36,562 Direct +0.21% Acquired 198.9% (price as of 2026-08-24)
Dec. 20, 2021 PESI P 600 $6.50 $3,900 19,958 Direct +3.10% Acquired 157.5% (price as of 2026-08-24)
Dec. 17, 2021 PESI P 1,000 $6.57 $6,570 19,321 Direct +5.46% Acquired 154.8% (price as of 2026-08-24)
Dec. 17, 2021 PESI P 37 $6.52 $241 19,358 Direct +0.19% Acquired 156.7% (price as of 2026-08-24)
Dec. 29, 2020 PESI P 500 $5.85 $2,925 18,321 Direct +2.81% Acquired 186.2% (price as of 2026-08-24)
Nov. 9, 2020 PESI P 500 $6.20 $3,100 17,821 Direct +2.89% Acquired 170.0% (price as of 2026-08-24)
Aug. 12, 2020 PESI P 20 $6.85 $137 17,321 Direct +0.12% Acquired 144.4% (price as of 2026-08-24)
Aug. 11, 2020 PESI P 500 $7.11 $3,555 16,051 Direct +3.22% Acquired 135.4% (price as of 2026-08-24)
Aug. 11, 2020 PESI P 750 $6.99 $5,242 16,801 Direct +4.67% Acquired 139.5% (price as of 2026-08-24)
Aug. 11, 2020 PESI P 500 $6.92 $3,460 17,301 Direct +2.98% Acquired 141.9% (price as of 2026-08-24)
March 30, 2020 PESI P 500 $5.10 $2,550 15,551 Direct +3.32% Acquired 228.2% (price as of 2026-08-24)
March 23, 2020 PESI P 1,000 $4.15 $4,150 14,551 Direct +7.38% Acquired 303.4% (price as of 2026-08-24)
March 23, 2020 PESI P 500 $4.05 $2,025 15,051 Direct +3.44% Acquired 313.3% (price as of 2026-08-24)
Aug. 14, 2019 PESI P 1,000 $3.80 $3,800 12,551 Direct +8.66% Acquired 340.5% (price as of 2026-08-24)
Aug. 14, 2019 PESI P 1,000 $3.75 $3,750 13,551 Direct +7.97% Acquired 346.4% (price as of 2026-08-24)
May 15, 2019 PESI P 500 $3.70 $1,850 11,551 Direct +4.52% Acquired 352.4% (price as of 2026-08-24)
May 14, 2019 PESI P 500 $3.80 $1,900 11,051 Direct +4.74% Acquired 340.5% (price as of 2026-08-24)
May 13, 2019 PESI P 500 $3.90 $1,950 10,551 Direct +4.97% Acquired 329.2% (price as of 2026-08-24)
Dec. 28, 2018 PESI P 500 $2.25 $1,125 9,501 Direct +5.55% Acquired 644.0% (price as of 2026-08-24)
Dec. 28, 2018 PESI P 100 $2.20 $220 9,601 Direct +1.05% Acquired 660.9% (price as of 2026-08-24)
Dec. 28, 2018 PESI P 450 $2.51 $1,130 10,051 Direct +4.69% Acquired 566.9% (price as of 2026-08-24)
Dec. 17, 2018 PESI P 700 $2.95 $2,065 9,001 Direct +8.43% Acquired 467.5% (price as of 2026-08-24)
Dec. 14, 2018 PESI P 1 $2.63 $3 8,301 Direct +0.01% Acquired 536.5% (price as of 2026-08-24)
Nov. 9, 2018 PESI P 700 $3.35 $2,345 6,700 Direct +11.67% Acquired 399.7% (price as of 2026-08-24)
Nov. 9, 2018 PESI P 700 $3.55 $2,485 7,400 Direct +10.45% Acquired 371.5% (price as of 2026-08-24)
Nov. 9, 2018 PESI P 900 $3.45 $3,105 8,300 Direct +12.16% Acquired 385.2% (price as of 2026-08-24)
Aug. 15, 2017 PESI P 1,500 $3.40 $5,100 6,000 Direct +33.33% Acquired 392.4% (price as of 2026-08-24)
Aug. 14, 2017 PESI P 1,500 $3.45 $5,175 4,500 Direct +50.00% Acquired 385.2% (price as of 2026-08-24)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
Jan. 8, 2025 PESI Stock Option Common Stock (25,000) $3.15 Jan. 17, 2025 25,000 Disposed
May 22, 2023 PESI Stock Option Common Stock (100,000) $3.65 July 27, 2023 100,000 Disposed
Jan. 19, 2023 PESI Stock Option Common Stock (70,000) $3.95 Jan. 19, 2029 70,000 Acquired
May 9, 2022 PESI Stock Option (right to buy) Common Stock (50,000) $3.97 May 22, 2022 50,000 Disposed
Oct. 14, 2021 PESI Stock Option Common Stock (50,000) $7.00 Oct. 14, 2027 50,000 Acquired
Jan. 17, 2019 PESI Stock Option Common Stock (25,000) $3.15 Jan. 17, 2025 25,000 Acquired
July 27, 2017 PESI Stock Option Common Stock (100,000) $3.65 July 27, 2023 100,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
July 6, 2016 PESI Stock Option→ Common Stock (50,000) 50,000 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

PESI

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2016 $136,581 — — $100,094 — — $40,800 $277,475

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.