Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 19 non-open-market transactions below 12 months to the week close of 2026-10-23

Price change vs the latest weekly close (updated to the current quote in your browser when available), split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 22, 2006 PESI A 2,217 $2.07 $4,589 195,197 Direct +1.15% Acquired 17.2% (price as of )
July 27, 2006 PESI A 6,818 $1.65 $11,250 169,193 Direct +4.20% Acquired 47.0% (price as of )
July 27, 2006 PESI A 8,982 $1.25 $11,228 178,175 Direct +5.31% Acquired 94.1% (price as of )
July 27, 2006 PESI A 7,853 $1.43 $11,230 186,028 Direct +4.41% Acquired 69.7% (price as of )
July 27, 2006 PESI A 7,042 $1.60 $11,267 193,070 Direct +3.79% Acquired 51.6% (price as of )
July 27, 2005 PESI A 3,727 $1.21 $4,510 149,493 Direct +2.56% Acquired 100.5% (price as of )
July 27, 2005 PESI A 3,317 $1.36 $4,511 152,810 Direct +2.22% Acquired 78.4% (price as of )
July 27, 2005 PESI A 3,315 $1.36 $4,508 156,125 Direct +2.17% Acquired 78.4% (price as of )
July 27, 2005 PESI A 6,250 $1.44 $9,000 162,375 Direct +4.00% Acquired 68.5% (price as of )
July 27, 2005 PESI A 12,000 $1.84 $22,080 12,000 Direct · Acquired
July 28, 2004 PESI A 2,655 $1.70 $4,514 142,414 Direct +1.90% Acquired 42.7% (price as of )
July 28, 2004 PESI A 3,352 $1.34 $4,492 145,766 Direct +2.35% Acquired 81.0% (price as of )
July 28, 2004 PESI A 12,000 $1.70 $20,400 59,000 Direct +25.53% Acquired
July 27, 2004 PESI A 2,400 $1.88 $4,512 128,125 Direct +1.91% Acquired 29.0% (price as of )
July 27, 2004 PESI A 2,927 $1.54 $4,508 131,052 Direct +2.28% Acquired 57.5% (price as of )
July 27, 2004 PESI A 3,226 $1.40 $4,516 134,278 Direct +2.46% Acquired 73.3% (price as of )
July 27, 2004 PESI A 3,552 $1.27 $4,511 137,830 Direct +2.65% Acquired 91.0% (price as of )
July 27, 2004 PESI A 1,929 $2.33 $4,495 139,759 Direct +1.40% Acquired 4.1% (price as of )
July 29, 2003 PESI A 12,000 · · 12,000 Direct · Acquired

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
July 27, 2005 PESI Stock Option Common Stock (12,000) $1.84 July 27, 2015 12,000 Acquired
July 28, 2004 PESI Stock Option Common Stock (12,000) $1.70 July 28, 2014 12,000 Acquired
July 29, 2003 PESI Stock Option Common Stock (12,000) $1.99 July 29, 2013 12,000 Acquired

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

Holdings reported on Form 4 24 reported holdings

08

Positions listed on each Form 4 without a transaction in that filing (Table I and II holdings), newest filing first.

DateTickerSecuritySharesExercise priceExpirationOwnership
Dec. 11, 2006 PESI Stock Option→ Common Stock (15,000) 15,000 $2.98 March 12, 2012 Direct
Dec. 11, 2006 PESI Stock Option→ Common Stock (5,000) 5,000 $2.58 Nov. 6, 2012 Direct
Dec. 11, 2006 PESI Stock Option→ Common Stock (12,000) 12,000 $1.99 July 29, 2013 Direct
Dec. 11, 2006 PESI Stock Option→ Common Stock (12,000) 12,000 $1.70 July 28, 2014 Direct
Dec. 11, 2006 PESI Stock Option→ Common Stock (12,000) 12,000 $1.84 July 27, 2015 Direct
July 31, 2006 PESI Stock Option→ Common Stock (15,000) 15,000 $2.98 March 12, 2012 Direct
July 31, 2006 PESI Stock Option→ Common Stock (5,000) 5,000 $2.58 Nov. 6, 2012 Direct
July 31, 2006 PESI Stock Option→ Common Stock (12,000) 12,000 $1.99 July 29, 2013 Direct
July 31, 2006 PESI Stock Option→ Common Stock (12,000) 12,000 $1.70 July 28, 2014 Direct
July 31, 2006 PESI Stock Option→ Common Stock (12,000) 12,000 $1.84 July 27, 2015 Direct
July 29, 2005 PESI Stock Option→ Common Stock (15,000) 15,000 $2.98 March 12, 2012 Direct
July 29, 2005 PESI Stock Option→ Common Stock (5,000) 5,000 $2.58 Nov. 6, 2012 Direct
July 29, 2005 PESI Stock Option→ Common Stock (12,000) 12,000 $1.99 July 29, 2013 Direct
July 29, 2005 PESI Stock Option→ Common Stock (12,000) 12,000 $1.70 July 28, 2014 Direct
July 29, 2004 PESI Stock Option→ Common Stock (5,000) 5,000 $3.00 Aug. 30, 2004 Direct
July 29, 2004 PESI Stock Option→ Common Stock (10,000) 10,000 $2.88 Jan. 11, 2005 Direct
July 29, 2004 PESI Stock Option→ Common Stock (15,000) 15,000 $2.98 March 12, 2012 Direct
July 29, 2004 PESI Stock Option→ Common Stock (5,000) 5,000 $2.58 Nov. 6, 2012 Direct
July 29, 2004 PESI Stock Option→ Common Stock (12,000) 12,000 $1.99 July 29, 2013 Direct
July 30, 2003 PESI Common Stock 125,725 · · Direct
July 30, 2003 PESI Stock Option→ Common Stock (5,000) 5,000 $3.00 Aug. 30, 2004 Direct
July 30, 2003 PESI Stock Option→ Common Stock (10,000) 10,000 $2.88 Jan. 11, 2005 Direct
July 30, 2003 PESI Stock Option→ Common Stock (15,000) 15,000 $2.98 March 12, 2012 Direct
July 30, 2003 PESI Stock Option→ Common Stock (5,000) 5,000 $2.58 Nov. 6, 2012 Direct