ELKHORN PARTNERS LIMITED PARTNERSHIP

Holdings History for Energy Recovery, Inc. - Common Stock (ERII)

Symbol: ERII on Nasdaq
Investment type: Equity / Common Stock

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
30 Sep 2022		-0.02%	$0	0	-1,862	-100%	$14.81	Q3 2022
30 Jun 2022	0.02%	-0.01%	$36,000	1,862	-638	-26%	$19.33	Q2 2022
31 Mar 2022	0.03%	0%	$50,000	2,500	0		$20.00	Q1 2022
31 Dec 2021	0.03%	-0.03%	$54,000	2,500	-2,700	-52%	$21.60	Q4 2021
30 Sep 2021	0.06%	-0.01%	$99,000	5,200	-800	-13%	$19.04	Q3 2021
30 Jun 2021	0.08%	-0.16%	$137,000	6,000	-11,400	-66%	$22.83	Q2 2021
31 Mar 2021	0.2%	-0.36%	$319,000	17,400	-32,033	-65%	$18.33	Q1 2021
31 Dec 2020	0.45%	-0.16%	$674,000	49,433	-17,967	-27%	$13.63	Q4 2020
30 Sep 2020	0.43%	-0.01%	$553,000	67,400	-1,600	-2.3%	$8.20	Q3 2020
30 Jun 2020	0.41%	-0.01%	$524,000	69,000	-1,650	-2.3%	$7.59	Q2 2020
31 Mar 2020	0.44%	-0.02%	$526,000	70,650	-3,150	-4.3%	$7.45	Q1 2020
31 Dec 2019	0.42%	-0%	$723,000	73,800	-566	-0.76%	$9.80	Q4 2019
30 Sep 2019	0.4%	-0.04%	$689,000	74,366	-7,215	-8.8%	$9.26	Q3 2019
30 Jun 2019	0.51%	-0.03%	$850,000	81,581	-5,419	-6.2%	$10.42	Q2 2019
31 Mar 2019	0.46%	-0.01%	$760,000	87,000	-1,300	-1.5%	$8.74	Q1 2019
31 Dec 2018	0.39%	+0.05%	$594,000	88,300	+11,700	+15%	$6.73	Q4 2018
30 Sep 2018	0.4%	+0%	$686,000	76,600	+900	+1.2%	$8.96	Q3 2018
30 Jun 2018	0.36%	-0%	$612,000	75,700	-600	-0.79%	$8.08	Q2 2018
31 Mar 2018	0.4%	+0.17%	$627,000	76,300	+33,186	+77%	$8.22	Q1 2018
31 Dec 2017	0.24%	-0.02%	$377,000	43,114	-3,300	-7.1%	$8.74	Q4 2017
30 Sep 2017	0.24%	+0.1%	$367,000	46,414	+19,914	+75%	$7.91	Q3 2017
30 Jun 2017	0.14%	+0.14%	$220,000	26,500	+26,500	NEW	$8.30	Q2 2017

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.