Jack Lahav

Insider

First SEC filing: July 2, 2014 · Latest: July 2, 2014

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.

Insider at

PESI buying Dec. 3, 2008

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 73 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

73 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Oct. 27, 2016	PESI	A	1,036	$3.23	$3,346	197,433 Direct	+0.53%	Acquired	424.4% (price as of 2026-08-20)
Oct. 3, 2016	PESI	A	2,397	$3.76	$9,013	196,397 Direct	+1.24%	Acquired	350.5% (price as of 2026-08-20)
July 28, 2016	PESI	A	2,400	$4.60	$11,040	2,400 Direct	—	Acquired	268.2% (price as of 2026-08-20)
July 1, 2016	PESI	A	2,489	$3.82	$9,508	194,000 Direct	+1.30%	Acquired	343.4% (price as of 2026-08-20)
April 1, 2016	PESI	A	3,423	$2.78	$9,516	191,511 Direct	+1.82%	Acquired	509.3% (price as of 2026-08-20)
Jan. 4, 2016	PESI	A	2,867	$2.79	$7,999	188,452 Direct	+1.54%	Acquired	507.1% (price as of 2026-08-20)
Oct. 29, 2015	PESI	J	15,516	$4.25	$65,943	185,585 Direct	-7.72%	Disposed	298.5% (price as of 2026-08-20)
Oct. 1, 2015	PESI	A	3,309	$3.02	$9,993	210,893 Direct	+1.59%	Acquired	460.9% (price as of 2026-08-20)
Sept. 17, 2015	PESI	A	2,400	—	—	2,400 Direct	—	Acquired	(price as of 2026-08-20)
July 1, 2015	PESI	A	2,800	$2.86	$8,008	207,584 Direct	+1.37%	Acquired	492.2% (price as of 2026-08-20)
June 29, 2015	PESI	J	9,792	$3.81	$37,308	201,101 Direct	-4.64%	Disposed	344.6% (price as of 2026-08-20)
April 1, 2015	PESI	A	3,093	$2.91	$9,001	204,784 Direct	+1.53%	Acquired	482.1% (price as of 2026-08-20)
Jan. 2, 2015	PESI	A	3,065	$3.26	$9,992	201,691 Direct	+1.54%	Acquired	419.6% (price as of 2026-08-20)
Oct. 1, 2014	PESI	A	3,316	$2.86	$9,484	198,626 Direct	+1.70%	Acquired	492.2% (price as of 2026-08-20)
July 1, 2014	PESI	A	2,899	$3.45	$10,002	195,310 Direct	+1.51%	Acquired	391.0% (price as of 2026-08-20)
April 1, 2014	PESI	A	2,459	$3.66	$9,000	192,411 Direct	+1.29%	Acquired	362.8% (price as of 2026-08-20)
Jan. 2, 2014	PESI	A	4,073	$2.33	$9,490	189,952 Direct	+2.19%	Acquired	627.0% (price as of 2026-08-20)
Oct. 1, 2013	PESI	A	16,371	$0.55	$9,004	927,574 Direct	+1.80%	Acquired	515.9% (price as of 2026-08-20)
Sept. 12, 2013	PESI	A	12,000	$0.56	$6,720	12,000 Direct	—	Acquired	504.9% (price as of 2026-08-20)
July 1, 2013	PESI	A	35,185	$0.27	$9,500	911,203 Direct	+4.02%	Acquired	1154.7% (price as of 2026-08-20)
April 1, 2013	PESI	A	15,445	$0.62	$9,576	876,018 Direct	+1.79%	Acquired	446.4% (price as of 2026-08-20)
Jan. 2, 2013	PESI	A	17,619	$0.51	$8,986	860,573 Direct	+2.09%	Acquired	564.2% (price as of 2026-08-20)
Oct. 1, 2012	PESI	A	12,821	$0.78	$10,000	843 Direct	—	Acquired	334.3% (price as of 2026-08-20)
Sept. 13, 2012	PESI	A	12,000	$1.10	$13,200	12,000 Direct	—	Acquired	208.0% (price as of 2026-08-20)
July 2, 2012	PESI	A	9,117	$0.88	$8,023	830,133 Direct	+1.11%	Acquired	285.0% (price as of 2026-08-20)
April 2, 2012	PESI	A	6,709	$1.19	$7,984	821,016 Direct	+0.82%	Acquired	184.7% (price as of 2026-08-20)
Jan. 3, 2012	PESI	A	6,882	$1.16	$7,983	814,307 Direct	+0.85%	Acquired	192.0% (price as of 2026-08-20)
Oct. 1, 2011	PESI	A	8,889	$0.90	$8,000	807,425 Direct	+1.11%	Acquired	276.4% (price as of 2026-08-20)
Aug. 24, 2011	PESI	A	12,000	$1.41	$16,920	12,000 Direct	—	Acquired	140.3% (price as of 2026-08-20)
July 1, 2011	PESI	A	7,194	$1.04	$7,482	798,536 Direct	+0.91%	Acquired	225.7% (price as of 2026-08-20)
April 1, 2011	PESI	A	7,064	$1.13	$7,982	791,342 Direct	+0.90%	Acquired	199.8% (price as of 2026-08-20)
Jan. 4, 2011	PESI	A	6,544	$1.22	$7,984	784 Direct	—	Acquired	177.7% (price as of 2026-08-20)
Oct. 1, 2010	PESI	A	7,585	$1.25	$9,481	777,734 Direct	+0.98%	Acquired	171.0% (price as of 2026-08-20)
Sept. 29, 2010	PESI	A	12,000	$1.68	$20,160	12,000 Direct	—	Acquired	101.6% (price as of 2026-08-20)
July 1, 2010	PESI	A	6,625	$1.21	$8,016	770,149 Direct	+0.87%	Acquired	180.0% (price as of 2026-08-20)
April 1, 2010	PESI	A	4,762	$1.68	$8,000	763,524 Direct	+0.63%	Acquired	101.6% (price as of 2026-08-20)
Jan. 4, 2010	PESI	A	4,112	$1.70	$6,990	758,762 Direct	+0.54%	Acquired	99.3% (price as of 2026-08-20)
Oct. 1, 2009	PESI	A	4,558	$1.76	$8,022	750,092 Direct	+0.61%	Acquired	92.5% (price as of 2026-08-20)
July 29, 2009	PESI	A	12,000	$2.67	$32,040	12,000 Direct	—	Acquired	26.9% (price as of 2026-08-20)
July 1, 2009	PESI	A	3,581	$1.82	$6,517	750,092 Direct	+0.48%	Acquired	86.1% (price as of 2026-08-20)
April 1, 2009	PESI	A	5,812	$1.46	$8,486	746,511 Direct	+0.78%	Acquired	132.0% (price as of 2026-08-20)
Jan. 2, 2009	PESI	A	8,533	$0.94	$8,021	740,699 Direct	+1.17%	Acquired	260.4% (price as of 2026-08-20)
Dec. 3, 2008	PESI	P	65,000	$0.75	$48,750	732,166 Direct	+9.74%	Acquired	351.7% (price as of 2026-08-20)
Oct. 1, 2008	PESI	A	3,987	$1.57	$6,260	667,166 Direct	+0.60%	Acquired	115.8% (price as of 2026-08-20)
Aug. 5, 2008	PESI	A	3,109	$2.01	$6,249	651,277 Direct	+0.48%	Acquired	68.5% (price as of 2026-08-20)
Aug. 5, 2008	PESI	A	3,644	$1.85	$6,741	654,921 Direct	+0.56%	Acquired	83.1% (price as of 2026-08-20)
Aug. 5, 2008	PESI	A	5,144	$1.22	$6,276	660,065 Direct	+0.79%	Acquired	177.7% (price as of 2026-08-20)
Aug. 5, 2008	PESI	A	3,114	$2.17	$6,757	663,179 Direct	+0.47%	Acquired	56.1% (price as of 2026-08-20)
Aug. 5, 2008	PESI	A	12,000	$2.34	$28,080	12,000 Direct	—	Acquired	44.8% (price as of 2026-08-20)
Aug. 2, 2007	PESI	A	2,899	$1.55	$4,493	639,149 Direct	+0.46%	Acquired	118.6% (price as of 2026-08-20)
Aug. 2, 2007	PESI	A	2,586	$1.74	$4,500	641,735 Direct	+0.40%	Acquired	94.7% (price as of 2026-08-20)
Aug. 2, 2007	PESI	A	3,501	$1.78	$6,232	645,236 Direct	+0.55%	Acquired	90.3% (price as of 2026-08-20)
Aug. 2, 2007	PESI	A	2,932	$2.30	$6,744	648,168 Direct	+0.45%	Acquired	47.3% (price as of 2026-08-20)
Aug. 2, 2007	PESI	A	12,000	$2.95	$35,400	12,000 Direct	—	Acquired	14.8% (price as of 2026-08-20)
July 28, 2006	PESI	G	571,429	$1.75	$1,000,001	0 Direct	-100.00%	Disposed	93.6% (price as of 2026-08-20)
July 27, 2006	PESI	A	2,727	$1.65	$4,500	626,699 Direct	+0.44%	Acquired	105.3% (price as of 2026-08-20)
July 27, 2006	PESI	A	3,593	$1.25	$4,491	630,292 Direct	+0.57%	Acquired	171.0% (price as of 2026-08-20)
July 27, 2006	PESI	A	3,141	$1.43	$4,492	633,433 Direct	+0.50%	Acquired	136.9% (price as of 2026-08-20)
July 27, 2006	PESI	A	2,817	$1.60	$4,507	636,250 Direct	+0.44%	Acquired	111.7% (price as of 2026-08-20)
July 27, 2006	PESI	A	12,000	$2.15	$25,800	12,000 Direct	—	Acquired	57.6% (price as of 2026-08-20)
July 27, 2005	PESI	A	3,727	$1.21	$4,510	614,215 Direct	+0.61%	Acquired	180.0% (price as of 2026-08-20)
July 27, 2005	PESI	A	3,317	$1.36	$4,511	617,532 Direct	+0.54%	Acquired	149.1% (price as of 2026-08-20)
July 27, 2005	PESI	A	3,315	$1.36	$4,508	620,847 Direct	+0.54%	Acquired	149.1% (price as of 2026-08-20)
July 27, 2005	PESI	A	3,125	$1.44	$4,500	623,972 Direct	+0.50%	Acquired	135.3% (price as of 2026-08-20)
July 27, 2005	PESI	A	12,000	$1.84	$22,080	12,000 Direct	—	Acquired	84.1% (price as of 2026-08-20)
Dec. 15, 2004	PESI	P	2,500	$1.64	$4,100	602,988 Direct	+0.42%	Acquired	106.6% (price as of 2026-08-20)
Dec. 15, 2004	PESI	P	2,500	$1.63	$4,075	605,488 Direct	+0.41%	Acquired	107.8% (price as of 2026-08-20)
Dec. 15, 2004	PESI	P	5,000	$1.62	$8,100	610,488 Direct	+0.83%	Acquired	109.1% (price as of 2026-08-20)
July 28, 2004	PESI	A	2,655	$1.70	$4,514	597,136 Direct	+0.45%	Acquired	99.3% (price as of 2026-08-20)
July 28, 2004	PESI	A	3,352	$1.34	$4,492	600,488 Direct	+0.56%	Acquired	152.8% (price as of 2026-08-20)
July 28, 2004	PESI	A	12,000	$1.70	$20,400	615,429 Direct	+1.99%	Acquired	99.3% (price as of 2026-08-20)
July 27, 2004	PESI	A	2,400	$1.88	$4,512	582,847 Direct	+0.41%	Acquired	80.2% (price as of 2026-08-20)
July 27, 2004	PESI	A	2,927	$1.54	$4,508	585,774 Direct	+0.50%	Acquired	120.0% (price as of 2026-08-20)
July 27, 2004	PESI	A	3,226	$1.40	$4,516	589,000 Direct	+0.55%	Acquired	142.0% (price as of 2026-08-20)
July 27, 2004	PESI	A	3,552	$1.27	$4,511	592,552 Direct	+0.60%	Acquired	166.7% (price as of 2026-08-20)
July 27, 2004	PESI	A	1,929	$2.33	$4,495	594,481 Direct	+0.33%	Acquired	45.4% (price as of 2026-08-20)
July 29, 2003	PESI	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-20)

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
July 28, 2016	PESI	Stock Option	Common Stock (2,400)	$4.60	July 28, 2026	2,400	Acquired
Sept. 17, 2015	PESI	Stock Option	Common Stock (2,400)	$4.19	Sept. 17, 2025	2,400	Acquired
Sept. 12, 2013	PESI	Stock Option	Common Stock (12,000)	$0.56	Sept. 12, 2023	12,000	Acquired
Sept. 13, 2012	PESI	Stock Option	Common Stock (12,000)	$1.10	Sept. 13, 2022	12,000	Acquired
Aug. 24, 2011	PESI	Stock Option	Common Stock (12,000)	$1.41	Aug. 24, 2021	12,000	Acquired
Sept. 29, 2010	PESI	Stock Option	Common Stock (12,000)	$1.68	Sept. 29, 2020	12,000	Acquired
July 29, 2009	PESI	Stock Option	Common Stock (12,000)	$2.67	July 29, 2019	12,000	Acquired
Aug. 5, 2008	PESI	Stock Option	Common Stock (12,000)	$2.34	Aug. 5, 2018	12,000	Acquired
Aug. 2, 2007	PESI	Stock Option	Common Stock (12,000)	$2.95	Aug. 2, 2017	12,000	Acquired
July 28, 2006	PESI	Warrant	Common Stock (571,429)	$1.75	July 30, 2006	571,429	Disposed
July 27, 2006	PESI	Stock Option	Common Stock (12,000)	$2.15	July 27, 2016	12,000	Acquired
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).