BlackRock
MTSR

BlackRock’s Metsera Inc MTSR Stock Holding History

BlackRock’s Portfolio MTSR Stock Details MTSR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-3,835,309
Closed -$201M – 5673
2025
Q3 		$201M Buy
3,835,309
+2,598,184
+210% +$95.9M ﹤0.01% 1659
2025
Q2 		$35.2M Sell
1,237,125
-577,228
-32% -$14.3M ﹤0.01% 2673
2025
Q1 		$49.4M Buy
+1,814,353
New +$51.4M ﹤0.01% 2382

Other funds holding MTSR

IA
IFP Advisors Tampa, Florida $4.82B AUM 20.19% 1-Year Est. Return

BlackRock's MTSR Position: Q4 2025 in Review

BlackRock sold out of Metsera Inc (MTSR) in Q4 2025, closing a stake of 3,835,309 shares — an estimated $201M sold.

BlackRock first reported a position in MTSR in Q1 2025 and held it in 3 quarters. The position peaked at $201M in Q3 2025. 1 fund tracked by Wall St. Rank holds MTSR as of Q4 2025.

  • BlackRock reported no remaining Metsera Inc position as of Q4 2025 after selling out during the quarter.
  • BlackRock sold 3,835,309 Metsera Inc shares in Q4 2025, an estimated $201M.
  • BlackRock first reported a position in Metsera Inc in Q1 2025 and held it in 3 quarters.
  • BlackRock's Metsera Inc position peaked at $201M in Q3 2025.
  • 1 fund tracked by Wall St. Rank held Metsera Inc as of Q4 2025.

Based on BlackRock's 13F filing for Q4 2025, filed 12 Feb 2026.