DDD Partners’s ClearSign Technologies CLIR Stock Holding History

DDD Partners’s Portfolio CLIR Stock Details CLIR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$44K	Hold	12,000	–	–	﹤0.01%	163
2026 Q1	$52.3K	Hold	12,000	–	–	﹤0.01%	134
2025 Q4	$66.7K	Buy	12,000 +500	+4%	+$3.98K	﹤0.01%	128
2025 Q3	$88.7K	Hold	11,500	–	–	0.01%	126
2025 Q2	$61.5K	Hold	11,500	–	–	0.01%	110
2025 Q1	$86.3K	Buy	11,500 +1,000	+10%	+$9.97K	0.01%	100
2024 Q4	$151K	Sell	10,500 -1,000	-9%	-$9.87K	0.02%	96
2024 Q3	$97.7K	Hold	11,500	–	–	0.01%	100
2024 Q2	$95.9K	Buy	11,500 +1,000	+10%	+$8.24K	0.01%	93
2024 Q1	$101K	Hold	10,500	–	–	0.01%	89
2023 Q4	$117K	Hold	10,500	–	–	0.02%	82
2023 Q3	$114K	Buy	10,500 +500	+5%	+$5.78K	0.02%	84
2023 Q2	$131K	Hold	10,000	–	–	0.02%	89
2023 Q1	$79.8K	Buy	10,000 +1,000	+11%	+$7.6K	0.01%	80
2022 Q4	$48.2K	Hold	9,000	–	–	0.01%	78
2022 Q3	$83K	Buy	+9,000	New	+$96.1K	0.02%	81

Other funds holding CLIR

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

SQA

Simon Quick Advisors Morristown, New Jersey $2.48B AUM 21.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Cambridge Investment Research Advisors Fairfield, Iowa $44.6B AUM 28.94% 1-Year Est. Return

BPA

Beacon Pointe Advisors Newport Beach, California $21.5B AUM 23.65% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

HighTower Advisors Chicago, Illinois $104B AUM 28.3% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

DDD Partners's CLIR Position: Q2 2026 in Review

DDD Partners held its ClearSign Technologies (CLIR) position steady in Q2 2026 at 12,000 shares worth $44K. The position accounts for ﹤0.01% of the portfolio, ranked #163.

DDD Partners first reported a position in CLIR in Q3 2022 and has held it in 16 quarters since. The position peaked at $151K in Q4 2024. 24 funds tracked by Wall St. Rank hold CLIR as of Q2 2026.

DDD Partners held 12,000 shares of ClearSign Technologies worth $44K as of Q2 2026.
DDD Partners left its ClearSign Technologies share count unchanged in Q2 2026.
ClearSign Technologies made up ﹤0.01% of DDD Partners's portfolio in Q2 2026, its #163 holding.
DDD Partners first reported a position in ClearSign Technologies in Q3 2022 and has held it in 16 quarters since.
DDD Partners's ClearSign Technologies position peaked at $151K in Q4 2024.
24 funds tracked by Wall St. Rank held ClearSign Technologies as of Q2 2026.

Based on DDD Partners's 13F filing for Q2 2026, filed 5 Aug 2026.