Wilmer F. Pergande

Insider

First SEC filing: Dec. 17, 2013 · Latest: Dec. 17, 2013

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Initial holdings The stakes this person held when they first started reporting.

Insider at

CWCO selling June 12, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 12 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

12 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 17, 2024	CWCO	A	1,516	$29.14	$44,176	36,645 Direct	+4.32%	Acquired	0.5% (price as of 2026-08-21)
June 12, 2024	CWCO	S	3,500	$25.29	$88,515	34,882 Direct	-9.12%	Disposed	15.8% (price as of 2026-08-21)
Dec. 12, 2023	CWCO	A	2,872	$15.38	$44,171	38,152 Direct	+8.14%	Acquired	90.5% (price as of 2026-08-21)
Dec. 9, 2022	CWCO	A	3,796	$11.58	$43,958	34,707 Direct	+12.28%	Acquired	153.0% (price as of 2026-08-21)
June 9, 2022	CWCO	S	5,309	$14.37	$76,290	30,639 Direct	-14.77%	Disposed	103.9% (price as of 2026-08-21)
Nov. 22, 2021	CWCO	A	4,196	$10.32	$43,303	35,434 Direct	+13.43%	Acquired	183.9% (price as of 2026-08-21)
Dec. 15, 2020	CWCO	A	2,665	$16.25	$43,306	30,471 Direct	+9.58%	Acquired	80.3% (price as of 2026-08-21)
Aug. 24, 2020	CWCO	S	2,657	$12.14	$32,256	27,606 Direct	-8.78%	Disposed	141.3% (price as of 2026-08-21)
Dec. 4, 2019	CWCO	A	2,984	$13.73	$40,970	29,805 Direct	+11.13%	Acquired	113.4% (price as of 2026-08-21)
April 5, 2019	CWCO	S	1,183	$12.87	$15,225	26,397 Direct	-4.29%	Disposed	127.6% (price as of 2026-08-21)
April 4, 2019	CWCO	S	1,200	$12.70	$15,240	27,580 Direct	-4.17%	Disposed	130.7% (price as of 2026-08-21)
March 28, 2019	CWCO	S	858	$13.12	$11,257	28,780 Direct	-2.89%	Disposed	123.3% (price as of 2026-08-21)
Dec. 10, 2018	CWCO	A	2,657	$12.80	$34,010	29,512 Direct	+9.89%	Acquired	128.9% (price as of 2026-08-21)
March 29, 2018	CWCO	S	1,346	$15.16	$20,405	26,379 Direct	-4.85%	Disposed	93.2% (price as of 2026-08-21)
March 27, 2018	CWCO	S	1,228	$14.36	$17,634	27,725 Direct	-4.24%	Disposed	104.0% (price as of 2026-08-21)
Nov. 20, 2017	CWCO	A	2,487	$11.62	$28,899	28,801 Direct	+9.45%	Acquired	152.1% (price as of 2026-08-21)
April 7, 2017	CWCO	S	1,714	$11.50	$19,711	25,916 Direct	-6.20%	Disposed	154.7% (price as of 2026-08-21)
Dec. 16, 2016	CWCO	A	2,368	$11.32	$26,806	27,462 Direct	+9.44%	Acquired	158.8% (price as of 2026-08-21)
Dec. 9, 2016	CWCO	S	1,776	$11.11	$19,731	25,094 Direct	-6.61%	Disposed	163.7% (price as of 2026-08-21)
Dec. 17, 2015	CWCO	A	1,714	$11.32	$19,402	26,343 Direct	+6.96%	Acquired	158.8% (price as of 2026-08-21)
Dec. 18, 2014	CWCO	A	856	$14.96	$12,806	24,106 Direct	+3.68%	Acquired	95.8% (price as of 2026-08-21)
Dec. 13, 2013	CWCO	A	2,049	$8.25	$16,904	22,750 Direct	+9.90%	Acquired	255.1% (price as of 2026-08-21)
Nov. 22, 2013	CWCO	P	1,000	$12.12	$12,120	20,382 Direct	+5.16%	Acquired	141.7% (price as of 2026-08-21)
Aug. 14, 2013	CWCO	P	500	$12.55	$6,275	500 Indirect	—	Acquired	133.4% (price as of 2026-08-21)

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.

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
Dec. 17, 2013	CWCO	Common Stock	—	Direct
Jan. 10, 2013	CWCO	Common Stock	17,048	Direct