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 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

EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return

RCMNY

Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return

Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

BNP Paribas Asset Management Paris, France $86.1B AUM 29.11% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Massachusetts Financial Services's ZYME Position: Q1 2026 in Review

Massachusetts Financial Services reduced its Zymeworks (ZYME) stake by 2.6% in Q1 2026, selling an estimated $17.2K and leaving 27,354 shares worth $685K. The position accounts for ﹤0.01% of the portfolio, ranked #873.

Massachusetts Financial Services first reported a position in ZYME in Q2 2024 and has held it in 8 quarters since. The position peaked at $1M in Q3 2024. 211 funds tracked by Wall St. Rank hold ZYME as of Q1 2026.

Massachusetts Financial Services held 27,354 shares of Zymeworks worth $685K as of Q1 2026.
Massachusetts Financial Services sold 729 Zymeworks shares in Q1 2026, an estimated $17.2K.
Zymeworks made up ﹤0.01% of Massachusetts Financial Services's portfolio in Q1 2026, its #873 holding.
Massachusetts Financial Services first reported a position in Zymeworks in Q2 2024 and has held it in 8 quarters since.
Massachusetts Financial Services's Zymeworks position peaked at $1M in Q3 2024.
211 funds tracked by Wall St. Rank held Zymeworks as of Q1 2026.

Based on Massachusetts Financial Services's 13F filing for Q1 2026, filed 14 May 2026.