ZYMEWORKS INC (ZYME): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in ZYME · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
14
13F filers
Aggregate Value
$69.6M
Across holders
Last Price
$28.77
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity7 increased6 reduced1 exited
Full exits: Walleye Capital LLC
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 914K | $23.9M | 34.3% | 0.0% | Reduced | +$19.3M | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 594K | $15.5M | 22.3% | 0.0% | Added | +$2.1M | Q2 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 418K | $10.9M | 15.7% | 0.0% | Reduced | $-8.5M | Q2 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 211K | $5.5M | 7.9% | 0.0% | Added | +$546K | Q2 2026 |
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 145K | $3.8M | 5.4% | 0.0% | Reduced | $-2.4M | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 111K | $2.9M | 4.2% | 0.0% | Added | +$2.6M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 72K | $1.9M | 2.7% | 0.0% | Added | — | Q2 2026 |
| Fisher Asset Management, LLC CIK 0000850529 | Institutional Manager | 71K | $1.9M | 2.7% | 0.0% | Reduced | $-802K | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 41K | $1.1M | 1.5% | 0.0% | Added | +$228K | Q2 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 36K | $953K | 1.4% | 0.0% | Reduced | $-11K | Q2 2026 |
Reduced
Hedge Fund
$23.9M· 34.3% of total· 0.0% port· 914K sh· +$19.3M QoQ· Q2 2026
Added
Hedge Fund
$15.5M· 22.3% of total· 0.0% port· 594K sh· +$2.1M QoQ· Q2 2026
Reduced
Hedge Fund
$10.9M· 15.7% of total· 0.0% port· 418K sh· $-8.5M QoQ· Q2 2026
Added
Hedge Fund
$5.5M· 7.9% of total· 0.0% port· 211K sh· +$546K QoQ· Q2 2026
Reduced
Hedge Fund
$3.8M· 5.4% of total· 0.0% port· 145K sh· $-2.4M QoQ· Q2 2026
Added
Hedge Fund
$2.9M· 4.2% of total· 0.0% port· 111K sh· +$2.6M QoQ· Q2 2026
Added
Hedge Fund
$1.9M· 2.7% of total· 0.0% port· 72K sh· — QoQ· Q2 2026
Reduced
Institutional Manager
$1.9M· 2.7% of total· 0.0% port· 71K sh· $-802K QoQ· Q2 2026
Added
Hedge Fund
$1.1M· 1.5% of total· 0.0% port· 41K sh· +$228K QoQ· Q2 2026
Reduced
Hedge Fund
$953K· 1.4% of total· 0.0% port· 36K sh· $-11K QoQ· Q2 2026
Added
Hedge Fund
$678K· 1.0% of total· 0.0% port· 26K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$423K· 0.6% of total· 0.0% port· 16K sh· $-1.7M QoQ· Q2 2026
Added
Hedge Fund
$217K· 0.3% of total· 0.0% port· 8K sh· — QoQ· Q2 2026
Unchanged
Hedge Fund
$2K· 0.0% of total· 0.0% port· 61 sh· +$0 QoQ· Q2 2026
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