RCM
MTSR

RA Capital Management’s Metsera Inc MTSR Stock Holding History

RA Capital Management’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
-675,525
Closed -$35.4M – 88
2025
Q3 		$35.4M Hold
675,525
– – 0.44% 35
2025
Q2 		$19.2M Hold
675,525
– – 0.32% 33
2025
Q1 		$18.4M Buy
+675,525
New +$19.1M 0.31% 45

Other funds holding MTSR

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

RA Capital Management's MTSR Position: Q4 2025 in Review

RA Capital Management sold out of Metsera Inc (MTSR) in Q4 2025, closing a stake of 675,525 shares — an estimated $35.4M sold.

RA Capital Management first reported a position in MTSR in Q1 2025 and held it in 3 quarters. The position peaked at $35.4M in Q3 2025. 1 fund tracked by Wall St. Rank holds MTSR as of Q4 2025.

  • RA Capital Management reported no remaining Metsera Inc position as of Q4 2025 after selling out during the quarter.
  • RA Capital Management sold 675,525 Metsera Inc shares in Q4 2025, an estimated $35.4M.
  • RA Capital Management first reported a position in Metsera Inc in Q1 2025 and held it in 3 quarters.
  • RA Capital Management's Metsera Inc position peaked at $35.4M in Q3 2025.
  • 1 fund tracked by Wall St. Rank held Metsera Inc as of Q4 2025.

Based on RA Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.