Granahan Investment Management
ZYME icon

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
Q2 		$8.79M Buy
336,157
+85,384
+34% +$2.17M 0.31% 78
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 $2.06B AUM 215.32% 1-Year Est. Return
Rubric Capital Management (New York)
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
Perceptive Advisors
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
BVF Inc
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 $103B AUM 40.17% 1-Year Est. Return
NI
Nextech Invest Zurich, Switzerland $2.11B AUM 413.84% 1-Year Est. Return

Granahan Investment Management's ZYME Position: Q2 2026 in Review

Granahan Investment Management increased its Zymeworks (ZYME) stake by 34% in Q2 2026, buying an estimated $2.17M and bringing the position to 336,157 shares worth $8.79M. The position accounts for 0.31% of the portfolio, ranked #78.

Granahan Investment Management first reported a position in ZYME in Q2 2022 and has held it in 17 quarters since. 202 funds tracked by Wall St. Rank hold ZYME as of Q2 2026.

  • Granahan Investment Management held 336,157 shares of Zymeworks worth $8.79M as of Q2 2026.
  • Granahan Investment Management bought 85,384 Zymeworks shares in Q2 2026, an estimated $2.17M.
  • Zymeworks made up 0.31% of Granahan Investment Management's portfolio in Q2 2026, its #78 holding.
  • Granahan Investment Management first reported a position in Zymeworks in Q2 2022 and has held it in 17 quarters since.
  • 202 funds tracked by Wall St. Rank held Zymeworks as of Q2 2026.

Based on Granahan Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.