Ardsley Advisory Partners’s Coherent COHR Stock Holding History

Ardsley Advisory Partners’s Portfolio COHR Stock Details COHR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-33,500	Closed	-$5.01M	–	155
2025 Q3	$3.61M	Sell	33,500 -53,500	-61%	-$5.33M	0.45%	73
2025 Q2	$7.76M	Sell	87,000 -2,500	-3%	-$180K	1.02%	29
2025 Q1	$5.81M	Buy	+89,500	New	+$7.42M	1.11%	31
2024 Q3	–	Sell	-42,000	Closed	-$3.04M	–	142
2024 Q2	$3.04M	Sell	42,000 -14,000	-25%	-$842K	0.45%	62
2024 Q1	$3.39M	Buy	+56,000	New	+$3.07M	0.49%	56
2017 Q1	–	Sell	-12,000	Closed	-$356K	–	159
2016 Q4	$356K	Sell	12,000 -8,000	-40%	-$228K	0.06%	99
2016 Q3	$487K	Buy	+20,000	New	+$423K	0.08%	94

Other funds holding COHR

CAM

Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return

Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return

VNIM

Vaughan Nelson Investment Management Houston, Texas $11.3B AUM 53% 1-Year Est. Return

TSAM

Trinity Street Asset Management London, United Kingdom $1.94B AUM 26.52% 1-Year Est. Return

ZCI

Zevenbergen Capital Investments Edmonds, Washington $4.38B AUM 56.68% 1-Year Est. Return

CNB

Czech National Bank Prague, Czech Republic $18.3B AUM 43.04% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

COPPSERS

Commonwealth of Pennsylvania Public School Employees Retirement System Harrisburg, Pennsylvania $20.6B AUM 37.37% 1-Year Est. Return

MLCM

M & L Capital Management London, United Kingdom $370M AUM 165.61% 1-Year Est. Return

Covea Finance Paris, France $3.17B AUM 35.01% 1-Year Est. Return

Ardsley Advisory Partners's COHR Position: Q4 2025 in Review

Ardsley Advisory Partners sold out of Coherent (COHR) in Q4 2025, closing a stake of 33,500 shares — an estimated $5.01M sold.

Ardsley Advisory Partners first reported a position in COHR in Q3 2016 and held it in 7 quarters. The position peaked at $7.76M in Q2 2025. 899 funds tracked by Wall St. Rank hold COHR as of Q4 2025.

Ardsley Advisory Partners reported no remaining Coherent position as of Q4 2025 after selling out during the quarter.
Ardsley Advisory Partners sold 33,500 Coherent shares in Q4 2025, an estimated $5.01M.
Ardsley Advisory Partners first reported a position in Coherent in Q3 2016 and held it in 7 quarters.
Ardsley Advisory Partners's Coherent position peaked at $7.76M in Q2 2025.
899 funds tracked by Wall St. Rank held Coherent as of Q4 2025.

Based on Ardsley Advisory Partners's 13F filing for Q4 2025, filed 17 Feb 2026.