Mariner
MBI icon

Mariner’s MBIA MBI Stock Holding History

Mariner’s Portfolio MBI Stock Details MBI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-13,149
Closed -$98K – 3700
2025
Q3 		$98K Buy
13,149
+679
+5% +$4.3K ﹤0.01% 3364
2025
Q2 		$54.1K Buy
12,470
+110
+0.9% +$488 ﹤0.01% 3337
2025
Q1 		$61.6K Hold
12,360
– – ﹤0.01% 3271
2024
Q4 		$79.8K Sell
12,360
-18
-0.1% -$93 ﹤0.01% 3223
2024
Q3 		$44.2K Sell
12,378
-9,311
-43% -$38.5K ﹤0.01% 3206
2024
Q2 		$119K Sell
21,689
-582
-3% -$3.49K ﹤0.01% 2921
2024
Q1 		$151K Buy
22,271
+112
+0.5% +$709 ﹤0.01% 2844
2023
Q4 		$136K Buy
22,159
+9,900
+81% +$79.6K ﹤0.01% 2795
2023
Q3 		$88.4K Sell
12,259
-427
-3% -$3.55K ﹤0.01% 2698
2023
Q2 		$110K Sell
12,686
-456
-3% -$4.11K ﹤0.01% 2621
2023
Q1 		$122K Sell
13,142
-2,726
-17% -$32.5K ﹤0.01% 2535
2022
Q4 		$204K Buy
15,868
+4,639
+41% +$53K ﹤0.01% 2347
2022
Q3 		$103K Buy
+11,229
New +$133K ﹤0.01% 2197
2019
Q3 		– Sell
-12,523
Closed -$117K – 902
2019
Q2 		$117K Buy
+12,523
New +$117K ﹤0.01% 1075

Other funds holding MBI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
WHCM
Wolf Hill Capital Management Greenwich, Connecticut $1.2B AUM 137.35% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
V
ValueWorks New York $479M AUM 117.71% 1-Year Est. Return
HP
Hosking Partners London, United Kingdom $3.01B AUM 83.99% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
TG
TCW Group Los Angeles, California $14.9B AUM 46.29% 1-Year Est. Return
KBG
Kahn Brothers Group New York $633M AUM 39.01% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Mariner's MBI Position: Q4 2025 in Review

Mariner sold out of MBIA (MBI) in Q4 2025, closing a stake of 13,149 shares — an estimated $98K sold.

Mariner first reported a position in MBI in Q2 2019 and held it in 14 quarters. The position peaked at $204K in Q4 2022. 120 funds tracked by Wall St. Rank hold MBI as of Q4 2025.

  • Mariner reported no remaining MBIA position as of Q4 2025 after selling out during the quarter.
  • Mariner sold 13,149 MBIA shares in Q4 2025, an estimated $98K.
  • Mariner first reported a position in MBIA in Q2 2019 and held it in 14 quarters.
  • Mariner's MBIA position peaked at $204K in Q4 2022.
  • 120 funds tracked by Wall St. Rank held MBIA as of Q4 2025.

Based on Mariner's 13F filing for Q4 2025, filed 13 Feb 2026.