Jane Street’s MacroGenics MGNX Stock Holding History

Jane Street’s Portfolio MGNX Stock Details MGNX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-138,700	Closed	-$451K	–	10154
2024 Q4	$451K	Sell	138,700 -400	-0.3%	-$1.44K	﹤0.01%	6995
2024 Q3	$458K	Sell	139,100 -100	-0.1%	-$390	﹤0.01%	7339
2024 Q2	$592K	Buy	+139,200	New	+$1.36M	﹤0.01%	6733
2021 Q4	–	Sell	-12,000	Closed	-$251K	–	10539
2021 Q3	$251K	Sell	12,000 -7,000	-37%	-$169K	﹤0.01%	8500
2021 Q2	$510K	Sell	19,000 -12,600	-40%	-$369K	﹤0.01%	7195
2021 Q1	$1.01M	Buy	31,600 +19,300	+157%	+$469K	﹤0.01%	5446
2020 Q4	$281K	Buy	+12,300	New	+$283K	﹤0.01%	6507

Other funds holding MGNX

Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

RCM

RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Jane Street's MGNX Position: Q1 2026 in Review

Jane Street reduced its MacroGenics (MGNX) stake by 52% in Q1 2026, selling an estimated $1.38M and leaving 608,509 shares worth $1.76M. The position accounts for ﹤0.01% of the portfolio, ranked #5341.

Jane Street first reported a position in MGNX in Q2 2014 and has held it in 26 quarters since. The position peaked at $5.57M in Q1 2024. 109 funds tracked by Wall St. Rank hold MGNX as of Q1 2026.

Jane Street held 608,509 shares of MacroGenics worth $1.76M as of Q1 2026.
Jane Street sold 646,414 MacroGenics shares in Q1 2026, an estimated $1.38M.
MacroGenics made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #5341 holding.
Jane Street first reported a position in MacroGenics in Q2 2014 and has held it in 26 quarters since.
Jane Street's MacroGenics position peaked at $5.57M in Q1 2024.
109 funds tracked by Wall St. Rank held MacroGenics as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.