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Zymeworks

US · ZYME #2828 by market cap Listed 2017
26.53 +0.88 +3.43%
Live - 5344 symbols - heartbeat 457s ago · 2026-10-08 05:35
Pre-market 26.48 -0.19%
After-hours 25.99 -2.04%
Market cap
1.90B
P/B
23.69
EPS
-1.08
Reader sentiment Are you bullish or bearish on ZYME?

Anonymous reader poll. Unscientific, not investment advice.

✦ Quant Ownership Signal how this is computed

Mixed / stable
  • The number of reporting institutions decreased by 2 in the most recent period (2026/Q3).
  • Total institutional ownership (as a % of shares) was little changed.

Institutional ownership

Held by institutions
98.15% -0.09pp
Institutions
252 -2
As of
2026/Q3 vs. prior period

Ownership vs. money flow

Aligned

Institutions trimmed shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two line up.

Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.

Holder types

Hedge Fund52.96%
Mutual Fund31.90%
VC/PE Fund7.51%
Public Company4.83%
Individual/Insider1.32%
Private Company0.52%
Government Pension Fund0.43%
Other0.53%

Top holders as of 2026-06-30

EcoR1 Capital, LLC 32.37% · 22.97M sh
Rubric Capital Management LP 9.86% · 7.00M sh
BlackRock 5.99% · 4.25M sh
Perceptive Advisors LLC 5.89% · 4.18M sh
BVF Partners L.P. 5.14% · 3.65M sh
Morgan Stanley 3.03% · 2.15M sh
Vanguard Capital Management, LLC 2.31% · 1.64M sh
BNPP Asset Management Holding 2.30% · 1.63M sh
Assenagon Asset Management S.A. 1.76% · 1.25M sh
Nextech Invest Ltd. 1.57% · 1.11M sh

Bar length is relative to the largest holder shown here, not to 100% of the company.

Insiders

50 filings tracked · 32 buys · 3 sells

NameRoleStake
EcoR1 Capital, LLC -- 32.37%
Gregory Ciongoli Director 0.70%
Kenneth Galbraith Chairperson & CEO 0.32%
Mark Hollywood Executive VP and Head of Technical & Manufacturing Operations 0.19%
Paul Moore Chief Scientific Officer 0.07%
Jeffrey T. Smith -- 0.04%
Troy Cox Independent Director 0.01%
Leone Patterson CFO, EVP & Chief Business Officer 0.00%
Brian Cherry Director --
Nancy Davidson Director --

Insider transactions most recent Form 4 filings

DateNameRoleTypeSharesPrice
2026-07-05 Mark Hollywood Executive VP and Head of Technical & Manufacturing Operations Other Acquisition +939 $22.22
2026-05-12 Paul Schneider Executive Vice President Other Derivative Acquisition +119,000 --
2026-05-12 Paul Schneider Executive Vice President Other Derivative Acquisition +178,000 $24.57
2026-05-12 Paul Schneider Executive Vice President Initial Statement of Beneficial 0 --
2026-04-08 Adam Schayowitz Acting Chief Development Officer Other Derivative Acquisition +47,000 --
2026-04-08 Adam Schayowitz Acting Chief Development Officer Other Derivative Acquisition +70,000 $27.35
2026-04-08 Adam Schayowitz Acting Chief Development Officer Other Derivative Acquisition +76,000 --
2026-04-08 Adam Schayowitz Acting Chief Development Officer Initial Statement of Beneficial 0 --
2026-04-08 Scott Platshon Director Other Derivative Acquisition +47,000 --
2026-04-08 Scott Platshon Director Other Derivative Acquisition +70,000 $27.35
2026-04-08 Scott Platshon Director Other Derivative Acquisition +76,000 --
2026-04-08 Scott Platshon Director Initial Statement of Beneficial 0 --
2026-04-05 Kristin Stafford Chief Financial Officer Other Derivative Acquisition +169,000 --
2026-04-05 Kristin Stafford Chief Financial Officer Other Derivative Acquisition +178,000 $25.84
2026-03-31 Kristin Stafford Chief Financial Officer Initial Statement of Beneficial 0 --
2026-01-31 Sabeen Mekan Senior Vice President of Clinical Development Initial Statement of Beneficial 0 --
2026-01-11 Kenneth Galbraith Chairperson & CEO Derivative Exercise and Sale -30,424 $22.67
2026-01-11 Kenneth Galbraith Chairperson & CEO Other Derivative Acquisition +144,000 --
2026-01-11 Kenneth Galbraith Chairperson & CEO Other Derivative Acquisition +216,000 $23.16
2026-01-11 Kenneth Galbraith Chairperson & CEO Other Derivative Acquisition +222,000 --

Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.

Quote time 2026-10-08 05:35:07 · For reference only, not investment advice and not tailored to your situation.