ClearSign Technologies Corp - Common Stock (CLIR)

Historical Holders from Q1 2014 to Q3 2025

Symbol: CLIR on Nasdaq
Type / Class: Equity / Common Stock
Shares outstanding: 54,976,358
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares, excl. options: 4,234,378
Holdings value: $3,267,120
% of all portfolios: 0%
Number of holders: 39
Number of buys: 11
Number of sells: -16
Average buys %: +0%
Average sells %: -0%

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Significant Owners of ClearSign Technologies Corp - Common Stock (CLIR)

Filer	Ownership	Change %	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
PASQUESI JOHN M	19.99%		$6,703,762		10,989,774		John M Pasquesi	14 Feb 2025
clirSPV LLC	4.3%		$1,371,906		2,249,027		HOFFMAN Robert Thurston Sr	14 Feb 2025

Institutional Holders of ClearSign Technologies Corp - Common Stock (CLIR)

Period	Reported Shares, Excl. Options	Value, Excl. Options	Change	Puts Notional Value	Calls Notional Value	Price	Investors
2025 Q3	4,234,378	$3,267,120	-$154,604		$10,857	$0.7712	39
2025 Q2	4,537,069	$2,469,272	+$220,824		$0	$0.5595	36
2025 Q1	4,103,607	$3,072,294	+$547,543		$4,500	$0.75	35
2024 Q4	3,362,465	$4,842,052	+$293,480			$1.44	30
2024 Q3	3,156,679	$2,682,932	+$5,564			$0.8499	26
2024 Q2	3,157,915	$2,635,877	+$193,028		$0	$0.8343	27
2024 Q1	2,908,925	$2,806,448	+$124,817	$0	$88,877	$0.965	26
2023 Q4	2,766,798	$3,071,223	-$17,036	$2,220	$3,996	$1.11	25
2023 Q3	2,783,765	$3,033,989	+$142,400	$0	$74,229	$1.09	27
2023 Q2	2,646,366	$3,466,522	+$276,891	$393	$100,084	$1.31	26
2023 Q1	2,509,708	$2,002,651	-$27,012	$878	$399	$0.798	26
2022 Q4	2,554,277	$1,366,724	-$62,609	$536	$0	$0.536	29
2022 Q3	2,659,506	$2,437,000	+$14,757	$0	$11,000	$0.9148	23
2022 Q2	2,595,982	$3,141,000	-$85,066	$40,000		$1.21	24
2022 Q1	2,641,540	$4,306,630	-$81,729	$55,000	$0	$1.63	24
2021 Q4	2,709,002	$3,735,000	-$78,848	$73,000	$42,000	$1.38	25
2021 Q3	2,719,171	$5,477,000	-$1,130,142	$110,000	$0	$2	32
2021 Q2	2,976,513	$14,280,000	+$719,545	$278,000	$388,000	$4.8	41
2021 Q1	2,813,428	$63,403,000	+$50,340,875	$388,000	$384,000	$5.68	33
2020 Q4	2,329,504	$6,824,000	+$653,262	$157,000	$153,000	$2.93	28
2020 Q3	2,558,551	$5,780,000	+$411,126	$259,000	$189,000	$2.26	23
2020 Q2	2,380,552	$4,953,000	-$1,733,862	$332,000	$256,000	$2.08	24
2020 Q1	3,212,993	$2,314,000	-$26,707		$35,000	$0.719	16
2019 Q4	3,250,237	$2,480,000	-$120,307		$14,000	$0.7629	18
2019 Q3	3,359,382	$4,105,000	+$20,062			$1.22	22
2019 Q2	3,341,216	$3,843,000	+$357,755			$1.15	19
2019 Q1	3,031,251	$2,727,000	-$483,671			$0.8988	20
2018 Q4	3,478,793	$3,548,000	+$195,408		$0	$1.02	20
2018 Q3	3,263,601	$5,224,000	+$364,493	$0	$37,000	$1.6	22
2018 Q2	3,018,775	$6,038,000	+$484,160	$241,000	$26,000	$2	23
2018 Q1	2,766,566	$5,600,000	+$1,559,760	$394,000	$0	$2.02	22
2017 Q4	1,941,020	$6,987,000	+$1,290,361	$383,000	$88,000	$3.6	23
2017 Q3	1,536,967	$5,456,000	-$84,742	$75,000	$0	$3.55	18
2017 Q2	1,560,946	$5,931,000	-$222,928	$392,000	$90,000	$3.8	23
2017 Q1	1,644,258	$6,411,000	+$1,329,887	$493,000	$152,000	$3.9	26
2016 Q4	1,373,990	$4,669,000	-$983,515	$181,000	$230,000	$3.4	29
2016 Q3	1,651,303	$9,905,000	+$1,346,570	$516,000	$571,000	$6	27
2016 Q2	1,421,597	$7,000,000	-$277,215	$59,000	$165,000	$5	26
2016 Q1	1,490,279	$5,945,000	-$622,345	$0	$48,000	$3.99	26
2015 Q4	1,667,594	$8,083,000	-$241,089	$225,000	$68,000	$4.85	29
2015 Q3	1,678,490	$10,385,000	+$349,813	$874,000	$96,000	$6.19	27
2015 Q2	1,626,205	$8,796,000	+$348,261	$426,000		$5.41	23
2015 Q1	1,521,442	$8,047,000	+$1,670,780	$71,000		$5.29	19
2014 Q4	1,180,860	$8,654,000	+$1,330,524			$7.33	22
2014 Q3	1,129,873	$7,547,004	+$645,312			$6.68	20
2014 Q2	1,026,844	$9,427,665	+$483,581			$9.18	19
2014 Q1	970,382	$10,588,232	+$3,114,790			$10.91	19