Citadel Advisors’s Quantum Cyber N.V. QUCY Stock Holding History

Citadel Advisors’s Portfolio QUCY Stock Details QUCY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-12,643	Closed	-$14.2K	–	13771
2025 Q4	$14.2K	Buy	+12,643	New	+$16.6K	﹤0.01%	12401
2024 Q2	–	Sell	-454	Closed	-$18.7K	–	15006
2024 Q1	$18.7K	Sell	454 -377	-45%	-$15.4K	﹤0.01%	13055
2023 Q4	$38.6K	Buy	+831	New	+$58.8K	﹤0.01%	12044
2022 Q1	–	Sell	-290	Closed	-$120K	–	14233
2021 Q4	$120K	Buy	+290	New	+$112K	﹤0.01%	12526

Other funds holding QUCY

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

XTX Topco George Town, Cayman Islands $5.75B AUM 30.56% 1-Year Est. Return

SPIA

Steward Partners Investment Advisory New York $19.6B AUM 22.89% 1-Year Est. Return

Virtu Financial New York $2.41B AUM 48.35% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

Harbour Investments Madison, Wisconsin $6.48B AUM 18.23% 1-Year Est. Return

JAG

Journey Advisory Group Covington, Kentucky $1.17B AUM 20.21% 1-Year Est. Return

TSS

Two Sigma Securities New York $861M AUM 21.33% 1-Year Est. Return

SBI Securities Tokyo, Japan $4.4B AUM 74.25% 1-Year Est. Return

Citadel Advisors's QUCY Position: Q1 2026 in Review

Citadel Advisors sold out of Quantum Cyber N.V. (QUCY) in Q1 2026, closing a stake of 12,643 shares — an estimated $14.2K sold.

Citadel Advisors first reported a position in QUCY in Q4 2021 and held it in 4 quarters. The position peaked at $120K in Q4 2021. 18 funds tracked by Wall St. Rank hold QUCY as of Q1 2026.

Citadel Advisors reported no remaining Quantum Cyber N.V. position as of Q1 2026 after selling out during the quarter.
Citadel Advisors sold 12,643 Quantum Cyber N.V. shares in Q1 2026, an estimated $14.2K.
Citadel Advisors first reported a position in Quantum Cyber N.V. in Q4 2021 and held it in 4 quarters.
Citadel Advisors's Quantum Cyber N.V. position peaked at $120K in Q4 2021.
18 funds tracked by Wall St. Rank held Quantum Cyber N.V. as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.