Citadel Advisors
CIO

Citadel Advisors’s City Office REIT CIO Stock Holding History

Citadel Advisors’s Portfolio CIO Stock Details CIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-8,300
Closed -$43.1K – 12779
2025
Q1 		$43.1K Buy
8,300
+6,100
+277% +$31.3K ﹤0.01% 12462
2024
Q4 		$12.1K Sell
2,200
-6,200
-74% -$34K ﹤0.01% 13511
2024
Q3 		$49.1K Sell
8,400
-7,200
-46% -$40.7K ﹤0.01% 11937
2024
Q2 		$77.7K Buy
15,600
+6,800
+77% +$32.7K ﹤0.01% 11251
2024
Q1 		$45.8K Sell
8,800
-16,700
-65% -$84.1K ﹤0.01% 12242
2023
Q4 		$156K Sell
25,500
-9,100
-26% -$42.4K ﹤0.01% 10325
2023
Q3 		$147K Sell
34,600
-2,400
-6% -$12.3K ﹤0.01% 10391
2023
Q2 		$206K Buy
37,000
+34,900
+1,662% +$190K ﹤0.01% 9824
2023
Q1 		$14.5K Sell
2,100
-2,600
-55% -$22K ﹤0.01% 13305
2022
Q4 		$39.4K Buy
+4,700
New +$45.2K ﹤0.01% 12438
2022
Q3 		– Sell
-19,000
Closed -$246K – 12712
2022
Q2 		$246K Buy
19,000
+4,600
+32% +$65.1K ﹤0.01% 10252
2022
Q1 		$254K Sell
14,400
-22,000
-60% -$395K ﹤0.01% 10960
2021
Q4 		$718K Sell
36,400
-3,000
-8% -$55.1K ﹤0.01% 8770
2021
Q3 		$704K Buy
39,400
+15,000
+61% +$218K ﹤0.01% 9053
2021
Q2 		$303K Buy
24,400
+9,500
+64% +$110K ﹤0.01% 11239
2021
Q1 		$158K Sell
14,900
-2,200
-13% -$22.5K ﹤0.01% 11977
2020
Q4 		$167K Buy
17,100
+3,600
+27% +$29.6K ﹤0.01% 9870
2020
Q3 		$102K Buy
+13,500
New +$117K ﹤0.01% 9264

Other funds holding CIO

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
NM
Newtyn Management New York $936M AUM 27.23% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
TC
Trium Capital London, United Kingdom $163M AUM 45.8% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $37.7B AUM 34.44% 1-Year Est. Return
GF
Gabelli Funds Rye, New York $14.8B AUM 32.24% 1-Year Est. Return
MF
Magnetar Financial Evanston, Illinois $9.84B AUM 190.64% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Citadel Advisors's CIO Position: Q4 2025 in Review

Citadel Advisors sold out of City Office REIT (CIO) in Q4 2025, closing a stake of 75,546 shares — an estimated $526K sold.

Citadel Advisors first reported a position in CIO in Q4 2016 and held it in 28 quarters. The position peaked at $8.39M in Q3 2019. 152 funds tracked by Wall St. Rank hold CIO as of Q4 2025.

  • Citadel Advisors reported no remaining City Office REIT position as of Q4 2025 after selling out during the quarter.
  • Citadel Advisors sold 75,546 City Office REIT shares in Q4 2025, an estimated $526K.
  • Citadel Advisors first reported a position in City Office REIT in Q4 2016 and held it in 28 quarters.
  • Citadel Advisors's City Office REIT position peaked at $8.39M in Q3 2019.
  • 152 funds tracked by Wall St. Rank held City Office REIT as of Q4 2025.

Based on Citadel Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.