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CLIR CLEARSIGN TECHNOLOGIES CORP

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COM NEW (common), issuer CIK 1434524

23 managers (25 13F filers) reported a position in CLIR shares at 2026-06-30, 422,515 shares in all. 6 filers opened a position and 1 filer sold out during the quarter.

Managers
23
13F filers
25
New
6
Added
3
Reduced
1
Sold out
1
Shares held by filers
422,515

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 3 filers holding130,239$478K0Timeline
SIMON QUICK ADVISORS, LLC60,314$221K0.01%013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC51,457$189K<0.01%-6,22613F-HRTimelineGroup
Cambridge Investment Research Advisors,…44,300$163K<0.01%013F-HR/ATimeline
Beacon Pointe Advisors, LLC27,173$99.7K<0.01%013F-HRTimeline
HighTower Advisors, LLC22,662$83.2K<0.01%+9,98213F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC20,565$75.5K<0.01%new13F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.19,503$71.6K<0.01%013F-HRTimelineGroup
DDD Partners, LLC12,000$44K<0.01%013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP10,080$37K<0.01%new13F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…8,120$29.8K<0.01%013F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…7,172$26.3K<0.01%013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN2,125$7.8K<0.01%013F-HRTimelineGroup
Gleason Group, Inc.1,802$6.61K<0.01%013F-HRTimeline
Centerpoint Advisors, LLC1,560$6K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,518$5.57K<0.01%+47313F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA684$3K<0.01%new13F-HRTimelineGroup
Integrated Wealth Concepts LLC687$2.52K<0.01%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\400$1.47K<0.01%013F-HRTimelineGroup
UBS Group AGin group UBS Group AG100$367<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC33$121<0.01%new13F-HRTimelineGroup
SBI Securities Co., Ltd.12$44<0.01%+113F-HRTimeline
GROUP ONE TRADING LLC9$33<0.01%013F-HRTimeline