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ClearSign Technologies Corp

CLIR
Exchange
Nasdaq
Industry
Industrial Instruments For Measurement, Display, and Control
SEC CIK
0001434524

In the last 90 days, ClearSign Technologies Corp insiders filed 1 open-market purchase and 0 sales; 24 institutions reported holding it in 13F filings for Q2 2026, worth $1.55M in total; no superinvestor holds it.

13F holders, Q4 2021

Institutional positions in ClearSign Technologies Corp as of Dec 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
27
−7 vs. Q3 2021
Shares held
2.71M
−21.4K (−0.8%) vs. Q3 2021
Total value
$3.74M
−$1.79M (−32.4%) vs. Q3 2021
New holders
4
5 more added
Sold out
11
6 more reduced

Compare with Q3 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CLIR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2021: 27 institutions
Q1 2021: 35 institutionsQ2 2021: 43 institutionsQ3 2021: 34 institutionsQ4 2021: 27 institutionsQ1 2022: 26 institutionsQ2 2022: 27 institutionsQ3 2022: 27 institutionsQ4 2022: 29 institutionsQ1 2023: 26 institutionsQ2 2023: 27 institutionsQ3 2023: 28 institutionsQ4 2023: 26 institutionsQ1 2024: 27 institutionsQ2 2024: 29 institutionsQ3 2024: 27 institutionsQ4 2024: 31 institutionsQ1 2025: 38 institutionsQ2 2025: 37 institutionsQ3 2025: 39 institutionsQ4 2025: 38 institutionsQ1 2026: 20 institutionsQ2 2026: 24 institutions
Value heldQ4 2021: $3.74M
Q1 2021: $16.0MQ2 2021: $14.3MQ3 2021: $5.53MQ4 2021: $3.74MQ1 2022: $4.31MQ2 2022: $3.14MQ3 2022: $2.44MQ4 2022: $1.37MQ1 2023: $2.00MQ2 2023: $3.47MQ3 2023: $3.03MQ4 2023: $3.07MQ1 2024: $2.81MQ2 2024: $2.64MQ3 2024: $2.68MQ4 2024: $4.84MQ1 2025: $3.07MQ2 2025: $2.47MQ3 2025: $3.27MQ4 2025: $2.48MQ1 2026: $1.74MQ2 2026: $1.55M
Institutions holding CLIR and their total value by quarter
QuarterHoldersValue
Q2 202624$1.55M
Q1 202620$1.74M
Q4 202538$2.48M
Q3 202539$3.27M
Q2 202537$2.47M
Q1 202538$3.07M
Q4 202431$4.84M
Q3 202427$2.68M
Q2 202429$2.64M
Q1 202427$2.81M
Q4 202326$3.07M
Q3 202328$3.03M
Q2 202327$3.47M
Q1 202326$2.00M
Q4 202229$1.37M
Q3 202227$2.44M
Q2 202227$3.14M
Q1 202226$4.31M
Q4 202127$3.74M
Q3 202134$5.53M
Q2 202143$14.3M
Q1 202135$16.0M

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding ClearSign Technologies Corp; share changes are against Q3 2021.

Institutions holding CLIR in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc1,076,681$1.49M0.00%−6,297−0.6%Reduced
Stifel Financial Corp490,790$677.0K0.00%+98,915+25.2%Added
BlackRock Inc.265,228$366.0K0.00%+25,164+10.5%Added
Geode Capital Management, LLC257,910$355.0K0.00%00.0%Unchanged
Avidian Wealth Solutions, LLC115,995$160.0K0.01%00.0%Unchanged
State Street Corp62,789$87.0K0.00%00.0%Unchanged
Northern Trust Corp49,522$68.0K0.00%00.0%Unchanged
Susquehanna International Group, LLP48,459$67.0K0.00%−16,102−24.9%Reduced
Levin Capital Strategies, L.P.40,580$56.0K0.01%−101,523−71.4%Reduced
Bank of Montreal35,800$50.0K0.00%+35,800New
Traynor Capital Management, Inc.34,000$46.0K0.01%+13,000+61.9%Added
Highland Capital Management, LLC32,454$45.0K0.00%00.0%Unchanged
Group One Trading, L.P.31,348$43.0K0.00%+31,348New
Baird Financial Group, Inc.29,000$40.0K0.00%00.0%Unchanged
Bank of New York Mellon Corp24,542$34.0K0.00%00.0%Unchanged
Wells Fargo & Company19,206$26.0K0.00%+3,501+22.3%Added
HRT Financial LP17,190$23.0K0.00%+17,190New
Centerpoint Advisors, LLC15,700$22.0K0.01%−300−1.9%Reduced
Close Asset Management Ltd14,000$19.0K0.00%00.0%Unchanged
Rockefeller Capital Management L.P.12,300$16.0K0.00%00.0%Unchanged
Two Sigma Investments, LP11,948$16.0K0.00%+1,110+10.2%Added
Veritable, L.P.10,370$14.0K0.00%00.0%Unchanged
Simplex Trading, LLC5,113$7.00K0.00%−8,322−61.9%Reduced
Morgan Stanley5,301$7.00K0.00%−639−10.8%Reduced
Deutsche Bank AG4,000$6.00K0.00%00.0%Unchanged
Allworth Financial LP6$00.00%00.0%Unchanged
Tower Research Capital LLC (TRC)360$00.00%+360New
Citadel Advisors LLC0$00.00%−25,272−100.0%Sold out
Sunbelt Securities, Inc.0$00.00%−12,000−100.0%Sold out
Moors & Cabot, Inc.0$00.00%−21,000−100.0%Sold out
Equitable Holdings, Inc.0$00.00%−16,710−100.0%Sold out
Charles Schwab Investment Management Inc0$00.00%−12,073−100.0%Sold out
Wealth Architects, LLC0$00.00%−11,000−100.0%Sold out
Barclays PLC0$00.00%−7,231−100.0%Sold out
UBS Group AG0$00.00%−5,330−100.0%Sold out
Bank of America Corp0$00.00%−1,536−100.0%Sold out
Gemmer Asset Management LLC0$00.00%−1,500−100.0%Sold out
Herold Advisors, Inc.0$00.00%−1,000−100.0%Sold out