Mariner
CIO

Mariner’s City Office REIT CIO Stock Holding History

Mariner’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
2026
Q1 		– Sell
-10,028
Closed -$70.1K – 3605
2025
Q4 		$70.1K Sell
10,028
-11,850
-54% -$82K ﹤0.01% 3381
2025
Q3 		$152K Buy
21,878
+646
+3% +$4.26K ﹤0.01% 3271
2025
Q2 		$113K Buy
21,232
+9,118
+75% +$45.7K ﹤0.01% 3219
2025
Q1 		$62.9K Sell
12,114
-1,819
-13% -$9.34K ﹤0.01% 3266
2024
Q4 		$76.9K Sell
13,933
-1,133
-8% -$6.22K ﹤0.01% 3230
2024
Q3 		$88.2K Buy
15,066
+1,112
+8% +$6.29K ﹤0.01% 3112
2024
Q2 		$69.5K Sell
13,954
-228
-2% -$1.1K ﹤0.01% 3009
2024
Q1 		$73.9K Sell
14,182
-79
-0.6% -$398 ﹤0.01% 2980
2023
Q4 		$87.1K Sell
14,261
-1,438
-9% -$6.71K ﹤0.01% 2874
2023
Q3 		$66.7K Buy
+15,699
New +$80.7K ﹤0.01% 2739

Other funds holding CIO

IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return
HNB
Huntington National Bank Columbus, Ohio $20.6B AUM 34.61% 1-Year Est. Return

Mariner's CIO Position: Q1 2026 in Review

Mariner sold out of City Office REIT (CIO) in Q1 2026, closing a stake of 10,028 shares — an estimated $70.1K sold.

Mariner first reported a position in CIO in Q3 2023 and held it in 10 quarters. The position peaked at $152K in Q3 2025. 2 funds tracked by Wall St. Rank hold CIO as of Q1 2026.

  • Mariner reported no remaining City Office REIT position as of Q1 2026 after selling out during the quarter.
  • Mariner sold 10,028 City Office REIT shares in Q1 2026, an estimated $70.1K.
  • Mariner first reported a position in City Office REIT in Q3 2023 and held it in 10 quarters.
  • Mariner's City Office REIT position peaked at $152K in Q3 2025.
  • 2 funds tracked by Wall St. Rank held City Office REIT as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.