Dark Forest Capital Management’s Magnite MGNI Stock Holding History

Dark Forest Capital Management’s Portfolio MGNI Stock Details MGNI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$139K	Buy	+11,687	New	+$157K	0.01%	755
2025 Q4	–	Sell	-69,509	Closed	-$1.51M	–	1199
2025 Q3	$1.51M	Buy	69,509 +20,205	+41%	+$477K	0.06%	579
2025 Q2	$1.19M	Sell	49,304 -124,560	-72%	-$1.84M	0.05%	682
2025 Q1	$1.98M	Buy	+173,864	New	+$2.77M	0.09%	386
2023 Q1	–	Sell	-3,310	Closed	-$35.1K	–	1366
2022 Q4	$35.1K	Sell	3,310 -38,593	-92%	-$352K	0.01%	458
2022 Q3	$275K	Buy	+41,903	New	+$337K	0.05%	344
2022 Q2	–	Sell	-93,001	Closed	-$1.23M	–	1184
2022 Q1	$1.23M	Buy	93,001 +91,653	+6,799%	+$1.24M	0.29%	88
2021 Q4	$24K	Buy	+1,348	New	+$30.4K	0.01%	628

Other funds holding MGNI

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

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

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

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

Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

Dark Forest Capital Management's MGNI Position: Q1 2026 in Review

Dark Forest Capital Management opened a new position in Magnite (MGNI) in Q1 2026: 11,687 shares worth $139K. The stake represents 0.01% of the portfolio and ranks #755 among its holdings. This is a return to the name: Dark Forest Capital Management previously reported a position in MGNI as recently as Q3 2025.

Dark Forest Capital Management first reported a position in MGNI in Q4 2021 and has held it in 8 quarters since. The position peaked at $1.98M in Q1 2025. 297 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.

Dark Forest Capital Management held 11,687 shares of Magnite worth $139K as of Q1 2026.
Magnite was a new Dark Forest Capital Management position in Q1 2026.
Magnite made up 0.01% of Dark Forest Capital Management's portfolio in Q1 2026, its #755 holding.
Dark Forest Capital Management first reported a position in Magnite in Q4 2021 and has held it in 8 quarters since.
Dark Forest Capital Management's Magnite position peaked at $1.98M in Q1 2025.
297 funds tracked by Wall St. Rank held Magnite as of Q1 2026.

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