Portolan Capital Management’s Ouster OUST Stock Holding History

Portolan Capital Management’s Portfolio OUST Stock Details OUST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-145,148	Closed	-$3.14M	–	165
2025 Q4	$3.14M	Buy	+145,148	New	+$3.83M	0.17%	124

Other funds holding OUST

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

PCM

Penn Capital Management Philadelphia, Pennsylvania $1.29B AUM 53.44% 1-Year Est. Return

TCM

Tao Capital Management San Francisco, California $119M AUM 87.46% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Portolan Capital Management's OUST Position: Q1 2026 in Review

Portolan Capital Management sold out of Ouster (OUST) in Q1 2026, closing a stake of 145,148 shares — an estimated $3.14M sold.

Portolan Capital Management first reported a position in OUST in Q4 2025 and held it in 1 quarter. The position peaked at $3.14M in Q4 2025. 227 funds tracked by Wall St. Rank hold OUST as of Q1 2026.

Portolan Capital Management reported no remaining Ouster position as of Q1 2026 after selling out during the quarter.
Portolan Capital Management sold 145,148 Ouster shares in Q1 2026, an estimated $3.14M.
Portolan Capital Management first reported a position in Ouster in Q4 2025 and held it in 1 quarter.
Portolan Capital Management's Ouster position peaked at $3.14M in Q4 2025.
227 funds tracked by Wall St. Rank held Ouster as of Q1 2026.

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