Needham Investment Management’s Ecovyst ECVT Stock Holding History

Needham Investment Management’s Portfolio ECVT Stock Details ECVT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$13.1M	Hold	1,020,000	–	–	0.67%	49
2025 Q4	$9.92M	Buy	1,020,000 +40,000	+4%	+$349K	0.63%	51
2025 Q3	$8.58M	Buy	980,000 +60,000	+7%	+$529K	0.6%	52
2025 Q2	$7.57M	Hold	920,000	–	–	0.6%	50
2025 Q1	$5.7M	Hold	920,000	–	–	0.53%	56
2024 Q4	$7.03M	Buy	920,000 +5,000	+0.5%	+$36.9K	0.54%	63
2024 Q3	$6.27M	Buy	915,000 +185,000	+25%	+$1.41M	0.48%	63
2024 Q2	$6.55M	Buy	730,000 +230,000	+46%	+$2.22M	0.54%	53
2024 Q1	$5.58M	Buy	+500,000	New	+$4.73M	0.52%	53

Other funds holding ECVT

RCMNY

Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Brown Advisory Baltimore, Maryland $60.9B AUM 15.24% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return

Needham Investment Management's ECVT Position: Q1 2026 in Review

Needham Investment Management held its Ecovyst (ECVT) position steady in Q1 2026 at 1,020,000 shares worth $13.1M. The position accounts for 0.67% of the portfolio, ranked #49.

Needham Investment Management first reported a position in ECVT in Q1 2024 and has held it in 9 quarters since. 197 funds tracked by Wall St. Rank hold ECVT as of Q1 2026.

Needham Investment Management held 1,020,000 shares of Ecovyst worth $13.1M as of Q1 2026.
Needham Investment Management left its Ecovyst share count unchanged in Q1 2026.
Ecovyst made up 0.67% of Needham Investment Management's portfolio in Q1 2026, its #49 holding.
Needham Investment Management first reported a position in Ecovyst in Q1 2024 and has held it in 9 quarters since.
197 funds tracked by Wall St. Rank held Ecovyst as of Q1 2026.

Based on Needham Investment Management's 13F filing for Q1 2026, filed 15 May 2026.