SEI Investments’s ADC Therapeutics ADCT Stock Holding History

SEI Investments’s Portfolio ADCT Stock Details ADCT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$28K	Sell	22,989 -10,472	-31%	-$12.2K	﹤0.01%	3266
2026 Q2	$35.8K	Hold	33,461	–	–	﹤0.01%	3244
2026 Q1	$125K	Buy	33,461 +10,472	+46%	+$41.3K	﹤0.01%	3058
2025 Q4	$81.2K	Hold	22,989	–	–	﹤0.01%	3035
2025 Q3	$92K	Hold	22,989	–	–	﹤0.01%	2728
2025 Q2	$61.6K	Hold	22,989	–	–	﹤0.01%	2736
2025 Q1	$32.4K	Hold	22,989	–	–	﹤0.01%	2711
2024 Q4	$45.7K	Buy	+22,989	New	+$60.2K	﹤0.01%	2675

Other funds holding ADCT

Nantahala Capital Management New Canaan, Connecticut $3.16B AUM 31.44% 1-Year Est. Return

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

ACM

AIGH Capital Management Baltimore, Maryland $992M AUM 516.32% 1-Year Est. Return

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

State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM

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

UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

Blue Owl Capital Holdings New York $548M AUM 35.34% 1-Year Est. Return

SEI Investments's ADCT Position: Q3 2026 in Review

SEI Investments reduced its ADC Therapeutics (ADCT) stake by 31% in Q3 2026, selling an estimated $12.2K and leaving 22,989 shares worth $28K. The position accounts for ﹤0.01% of the portfolio, ranked #3266.

SEI Investments first reported a position in ADCT in Q4 2024 and has held it in 8 quarters since. The position peaked at $125K in Q1 2026. 75 funds tracked by Wall St. Rank hold ADCT as of Q3 2026.

SEI Investments held 22,989 shares of ADC Therapeutics worth $28K as of Q3 2026.
SEI Investments sold 10,472 ADC Therapeutics shares in Q3 2026, an estimated $12.2K.
ADC Therapeutics made up ﹤0.01% of SEI Investments's portfolio in Q3 2026, its #3266 holding.
SEI Investments first reported a position in ADC Therapeutics in Q4 2024 and has held it in 8 quarters since.
SEI Investments's ADC Therapeutics position peaked at $125K in Q1 2026.
75 funds tracked by Wall St. Rank held ADC Therapeutics as of Q3 2026.

Based on SEI Investments's 13F filing for Q3 2026, filed 10 Nov 2026.