SEI Investments’s MacroGenics MGNX Stock Holding History

SEI Investments’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
2026 Q2	$761K	Buy	164,704 +133,386	+426%	+$505K	﹤0.01%	2453
2026 Q1	$90.5K	Hold	31,318	–	–	﹤0.01%	3110
2025 Q4	$50.4K	Hold	31,318	–	–	﹤0.01%	3077
2025 Q3	$52.6K	Hold	31,318	–	–	﹤0.01%	2774
2025 Q2	$37.9K	Sell	31,318 -2,698	-8%	-$3.91K	﹤0.01%	2765
2025 Q1	$43.2K	Buy	+34,016	New	+$88.9K	﹤0.01%	2686
2020 Q3	–	Sell	-23,728	Closed	-$662K	–	2469
2020 Q2	$662K	Buy	+23,728	New	+$412K	﹤0.01%	1731
2019 Q4	–	Sell	-40,512	Closed	-$517K	–	2428
2019 Q3	$517K	Hold	40,512	–	–	﹤0.01%	1880
2019 Q2	$687K	Sell	40,512 -2,101	-5%	-$36.1K	﹤0.01%	1728
2019 Q1	$766K	Buy	+42,613	New	+$737K	﹤0.01%	1698
2017 Q1	–	Sell	-501	Closed	-$10K	–	3008
2016 Q4	$10K	Hold	501	–	–	﹤0.01%	2471
2016 Q3	$15K	Buy	+501	New	+$14.9K	﹤0.01%	2331
2015 Q4	–	Sell	-13,948	Closed	-$299K	–	2624
2015 Q3	$299K	Buy	+13,948	New	+$438K	﹤0.01%	1480

Other funds holding MGNX

Armistice Capital New York $8.17B AUM 68.82% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

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

RCM

RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return

SEI Investments's MGNX Position: Q2 2026 in Review

SEI Investments increased its MacroGenics (MGNX) stake by 426% in Q2 2026, buying an estimated $505K and bringing the position to 164,704 shares worth $761K. The position accounts for ﹤0.01% of the portfolio, ranked #2453.

SEI Investments first reported a position in MGNX in Q3 2015 and has held it in 13 quarters since. The position peaked at $766K in Q1 2019. 122 funds tracked by Wall St. Rank hold MGNX as of Q2 2026.

SEI Investments held 164,704 shares of MacroGenics worth $761K as of Q2 2026.
SEI Investments bought 133,386 MacroGenics shares in Q2 2026, an estimated $505K.
MacroGenics made up ﹤0.01% of SEI Investments's portfolio in Q2 2026, its #2453 holding.
SEI Investments first reported a position in MacroGenics in Q3 2015 and has held it in 13 quarters since.
SEI Investments's MacroGenics position peaked at $766K in Q1 2019.
122 funds tracked by Wall St. Rank held MacroGenics as of Q2 2026.

Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.