Citigroup’s MBX Biosciences MBX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$1.39M Buy
25,122
+11,623
+86% +$406K ﹤0.01% 3211
2026
Q1
$403K Sell
13,499
-2,892
-18% -$98.3K ﹤0.01% 3675
2025
Q4
$517K Buy
16,391
+16,213
+9,108% +$393K ﹤0.01% 3557
2025
Q3
$3.12K Sell
178
-5,545
-97% -$74.1K ﹤0.01% 5371
2025
Q2
$65.3K Sell
5,723
-91,605
-94% -$933K ﹤0.01% 4629
2025
Q1
$718K Buy
97,328
+88,464
+998% +$935K ﹤0.01% 3472
2024
Q4
$163K Buy
+8,864
New +$189K ﹤0.01% 4537

Other funds holding MBX

Citigroup's MBX Position: Q2 2026 in Review

Citigroup increased its MBX Biosciences (MBX) stake by 86% in Q2 2026, buying an estimated $406K and bringing the position to 25,122 shares worth $1.39M. The position accounts for ﹤0.01% of the portfolio, ranked #3211.

Citigroup first reported a position in MBX in Q4 2024 and has held it in 7 quarters since. 26 funds tracked by Wall St. Rank hold MBX as of Q2 2026.

  • Citigroup held 25,122 shares of MBX Biosciences worth $1.39M as of Q2 2026.
  • Citigroup bought 11,623 MBX Biosciences shares in Q2 2026, an estimated $406K.
  • MBX Biosciences made up ﹤0.01% of Citigroup's portfolio in Q2 2026, its #3211 holding.
  • Citigroup first reported a position in MBX Biosciences in Q4 2024 and has held it in 7 quarters since.
  • 26 funds tracked by Wall St. Rank held MBX Biosciences as of Q2 2026.

Based on Citigroup's 13F filing for Q2 2026, filed 3 Aug 2026.