Rubric Capital Management (New York)’s Zymeworks ZYME Stock Holding History

Rubric Capital Management (New York)’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	$175M	Buy	7,000,000 +1,250,000	+22%	+$29.6M	1.86%	14
2025 Q4	$151M	Buy	5,750,000 +1,039,449	+22%	+$22.7M	1.81%	15
2025 Q3	$80.5M	Hold	4,710,551	–	–	0.91%	29
2025 Q2	$59.1M	Buy	4,710,551 +372,107	+9%	+$4.43M	0.89%	30
2025 Q1	$51.7M	Buy	4,338,444 +421,113	+11%	+$5.74M	0.93%	31
2024 Q4	$57.3M	Hold	3,917,331	–	–	0.74%	28
2024 Q3	$49.2M	Hold	3,917,331	–	–	0.8%	34
2024 Q2	$33.3M	Buy	3,917,331 +441,947	+13%	+$3.93M	0.87%	40
2024 Q1	$36.6M	Hold	3,475,384	–	–	1.08%	33
2023 Q4	$36.1M	Buy	3,475,384 +823,990	+31%	+$6.57M	0.75%	31
2023 Q3	$16.8M	Buy	2,651,394 +293,817	+12%	+$2.17M	0.63%	40
2023 Q2	$20.4M	Sell	2,357,577 -497,155	-17%	-$4.45M	0.87%	35
2023 Q1	$25.8M	Sell	2,854,732 -163,485	-5%	-$1.43M	0.67%	36
2022 Q4	$23.7M	Buy	+3,018,217	New	+$21.2M	1.03%	33
2019 Q2	–	Sell	-162,318	Closed	-$2.63M	–	69
2019 Q1	$2.63M	Buy	+162,318	New	+$2.52M	0.25%	55

Other funds holding ZYME

EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 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

Nextech Invest Zurich, Switzerland $1.42B AUM 304.47% 1-Year Est. Return

Rubric Capital Management (New York)'s ZYME Position: Q1 2026 in Review

Rubric Capital Management (New York) increased its Zymeworks (ZYME) stake by 22% in Q1 2026, buying an estimated $29.6M and bringing the position to 7,000,000 shares worth $175M. The position accounts for 1.86% of the portfolio, ranked #14.

Rubric Capital Management (New York) first reported a position in ZYME in Q1 2019 and has held it in 15 quarters since. 211 funds tracked by Wall St. Rank hold ZYME as of Q1 2026.

Rubric Capital Management (New York) held 7,000,000 shares of Zymeworks worth $175M as of Q1 2026.
Rubric Capital Management (New York) bought 1,250,000 Zymeworks shares in Q1 2026, an estimated $29.6M.
Zymeworks made up 1.86% of Rubric Capital Management (New York)'s portfolio in Q1 2026, its #14 holding.
Rubric Capital Management (New York) first reported a position in Zymeworks in Q1 2019 and has held it in 15 quarters since.
211 funds tracked by Wall St. Rank held Zymeworks as of Q1 2026.

Based on Rubric Capital Management (New York)'s 13F filing for Q1 2026, filed 15 May 2026.