Massachusetts Financial Services
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Massachusetts Financial Services’s Zymeworks ZYME Stock Holding History

Massachusetts Financial Services’s Portfolio ZYME Stock Details ZYME Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$723K Buy
27,670
+316
+1% +$8.03K ﹤0.01% 921
2026
Q1 		$685K Sell
27,354
-729
-3% -$17.2K ﹤0.01% 873
2025
Q4 		$739K Sell
28,083
-932
-3% -$20.3K ﹤0.01% 847
2025
Q3 		$496K Buy
29,015
+1,906
+7% +$27.3K ﹤0.01% 830
2025
Q2 		$340K Buy
27,109
+334
+1% +$3.98K ﹤0.01% 858
2025
Q1 		$319K Sell
26,775
-610
-2% -$8.32K ﹤0.01% 863
2024
Q4 		$401K Sell
27,385
-52,471
-66% -$734K ﹤0.01% 849
2024
Q3 		$1M Sell
79,856
-1,933
-2% -$21K ﹤0.01% 797
2024
Q2 		$696K Buy
+81,789
New +$728K ﹤0.01% 814

Other funds holding ZYME

EC
EcoR1 Capital San Francisco, California $2.06B AUM 215.32% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
BNP Paribas Asset Management
BNP Paribas Asset Management Paris, France $99.8B AUM 45.22% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.56% 1-Year Est. Return
NI
Nextech Invest Zurich, Switzerland $2.11B AUM 413.84% 1-Year Est. Return

Massachusetts Financial Services's ZYME Position: Q2 2026 in Review

Massachusetts Financial Services increased its Zymeworks (ZYME) stake by 1.2% in Q2 2026, buying an estimated $8.03K and bringing the position to 27,670 shares worth $723K. The position accounts for ﹤0.01% of the portfolio, ranked #921.

Massachusetts Financial Services first reported a position in ZYME in Q2 2024 and has held it in 9 quarters since. The position peaked at $1M in Q3 2024. 203 funds tracked by Wall St. Rank hold ZYME as of Q2 2026.

  • Massachusetts Financial Services held 27,670 shares of Zymeworks worth $723K as of Q2 2026.
  • Massachusetts Financial Services bought 316 Zymeworks shares in Q2 2026, an estimated $8.03K.
  • Zymeworks made up ﹤0.01% of Massachusetts Financial Services's portfolio in Q2 2026, its #921 holding.
  • Massachusetts Financial Services first reported a position in Zymeworks in Q2 2024 and has held it in 9 quarters since.
  • Massachusetts Financial Services's Zymeworks position peaked at $1M in Q3 2024.
  • 203 funds tracked by Wall St. Rank held Zymeworks as of Q2 2026.

Based on Massachusetts Financial Services's 13F filing for Q2 2026, filed 3 Aug 2026.