Massachusetts Financial Services
MTSR

Massachusetts Financial Services’s Metsera Inc MTSR Stock Holding History

Massachusetts Financial Services’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
Q3 		– Sell
-253,712
Closed -$7.22M – 943
2025
Q2 		$7.22M Sell
253,712
-227,967
-47% -$5.66M ﹤0.01% 696
2025
Q1 		$13.1M Buy
+481,679
New +$13.7M ﹤0.01% 638

Other funds holding MTSR

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AI
Alphabet Inc Mountain View, California $99.1B AUM 124.46% 1-Year Est. Return
VA
VR Adviser New York $2.68B AUM 422.73% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
SoftBank Group
SoftBank Group Tokyo, Japan $11.4B AUM 27.91% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Massachusetts Financial Services's MTSR Position: Q3 2025 in Review

Massachusetts Financial Services sold out of Metsera Inc (MTSR) in Q3 2025, closing a stake of 253,712 shares — an estimated $7.22M sold.

Massachusetts Financial Services first reported a position in MTSR in Q1 2025 and held it in 2 quarters. The position peaked at $13.1M in Q1 2025. 155 funds tracked by Wall St. Rank hold MTSR as of Q3 2025.

  • Massachusetts Financial Services reported no remaining Metsera Inc position as of Q3 2025 after selling out during the quarter.
  • Massachusetts Financial Services sold 253,712 Metsera Inc shares in Q3 2025, an estimated $7.22M.
  • Massachusetts Financial Services first reported a position in Metsera Inc in Q1 2025 and held it in 2 quarters.
  • Massachusetts Financial Services's Metsera Inc position peaked at $13.1M in Q1 2025.
  • 155 funds tracked by Wall St. Rank held Metsera Inc as of Q3 2025.

Based on Massachusetts Financial Services's 13F filing for Q3 2025, filed 29 Oct 2025.