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Granahan Investment Management’s Zymeworks ZYME Stock Holding History

Granahan Investment Management’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 		$6.28M Buy
250,773
+26,365
+12% +$624K 0.3% 85
2025
Q4 		$5.91M Sell
224,408
-120,923
-35% -$2.64M 0.25% 93
2025
Q3 		$5.9M Sell
345,331
-35,452
-9% -$507K 0.24% 87
2025
Q2 		$4.78M Sell
380,783
-26,806
-7% -$319K 0.19% 102
2025
Q1 		$4.85M Sell
407,589
-3,531
-0.9% -$48.2K 0.24% 95
2024
Q4 		$6.02M Sell
411,120
-202,383
-33% -$2.83M 0.25% 96
2024
Q3 		$7.7M Sell
613,503
-123,998
-17% -$1.35M 0.3% 99
2024
Q2 		$6.28M Buy
737,501
+80,894
+12% +$720K 0.25% 111
2024
Q1 		$6.91M Sell
656,607
-43,951
-6% -$488K 0.24% 111
2023
Q4 		$7.28M Sell
700,558
-20,623
-3% -$164K 0.24% 112
2023
Q3 		$4.57M Buy
721,181
+79,039
+12% +$584K 0.16% 129
2023
Q2 		$5.55M Sell
642,142
-8,247
-1% -$73.8K 0.17% 128
2023
Q1 		$5.88M Sell
650,389
-88,059
-12% -$768K 0.18% 116
2022
Q4 		$5.8M Buy
738,448
+150,640
+26% +$1.06M 0.18% 120
2022
Q3 		$3.62M Buy
587,808
+239,987
+69% +$1.45M 0.12% 143
2022
Q2 		$1.84M Buy
+347,821
New +$2.1M 0.06% 158

Other funds holding ZYME

EC
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
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
PA
Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
BNP Paribas Asset Management
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
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Granahan Investment Management's ZYME Position: Q1 2026 in Review

Granahan Investment Management increased its Zymeworks (ZYME) stake by 12% in Q1 2026, buying an estimated $624K and bringing the position to 250,773 shares worth $6.28M. The position accounts for 0.3% of the portfolio, ranked #85.

Granahan Investment Management first reported a position in ZYME in Q2 2022 and has held it in 16 quarters since. The position peaked at $7.7M in Q3 2024. 211 funds tracked by Wall St. Rank hold ZYME as of Q1 2026.

  • Granahan Investment Management held 250,773 shares of Zymeworks worth $6.28M as of Q1 2026.
  • Granahan Investment Management bought 26,365 Zymeworks shares in Q1 2026, an estimated $624K.
  • Zymeworks made up 0.3% of Granahan Investment Management's portfolio in Q1 2026, its #85 holding.
  • Granahan Investment Management first reported a position in Zymeworks in Q2 2022 and has held it in 16 quarters since.
  • Granahan Investment Management's Zymeworks position peaked at $7.7M in Q3 2024.
  • 211 funds tracked by Wall St. Rank held Zymeworks as of Q1 2026.

Based on Granahan Investment Management's 13F filing for Q1 2026, filed 15 May 2026.