CenterBook Partners’s Orion OEC Stock Holding History

CenterBook Partners’s Portfolio OEC Stock Details OEC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$127K	Buy	+22,573	New	+$141K	0.01%	848
2026 Q1	–	Sell	-378,517	Closed	-$2M	–	738
2025 Q4	$2M	Sell	378,517 -24,199	-6%	-$131K	0.1%	266
2025 Q3	$3.05M	Buy	402,716 +108,623	+37%	+$1.1M	0.15%	193
2025 Q2	$3.09M	Buy	294,093 +103,021	+54%	+$1.16M	0.17%	156
2025 Q1	$2.47M	Sell	191,072 -144,686	-43%	-$2.05M	0.16%	168
2024 Q4	$5.3M	Buy	+335,758	New	+$5.67M	0.32%	92

Other funds holding OEC

Pzena Investment Management New York $34.1B AUM 26.62% 1-Year Est. Return

BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return

American Century Companies Kansas City, Missouri $229B AUM 33.35% 1-Year Est. Return

DCM

Divisar Capital Management San Francisco, California $417M AUM 80.67% 1-Year Est. Return

Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return

Mackenzie Financial Toronto Ontario, Ontario, Canada $91.6B AUM 30% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $85.7B AUM 51.02% 1-Year Est. Return

CenterBook Partners's OEC Position: Q3 2026 in Review

CenterBook Partners opened a new position in Orion (OEC) in Q3 2026: 22,573 shares worth $127K. The stake represents 0.01% of the portfolio and ranks #848 among its holdings. This is a return to the name: CenterBook Partners previously reported a position in OEC as recently as Q4 2025.

CenterBook Partners first reported a position in OEC in Q4 2024 and has held it in 6 quarters since. The position peaked at $5.3M in Q4 2024. 126 funds tracked by Wall St. Rank hold OEC as of Q3 2026.

CenterBook Partners held 22,573 shares of Orion worth $127K as of Q3 2026.
Orion was a new CenterBook Partners position in Q3 2026.
Orion made up 0.01% of CenterBook Partners's portfolio in Q3 2026, its #848 holding.
CenterBook Partners first reported a position in Orion in Q4 2024 and has held it in 6 quarters since.
CenterBook Partners's Orion position peaked at $5.3M in Q4 2024.
126 funds tracked by Wall St. Rank held Orion as of Q3 2026.

Based on CenterBook Partners's 13F filing for Q3 2026, filed 2 Nov 2026.