MarketPeel
Insider Trading Intelligence
MH

Mark Hollywood

ZYME
EVP & CHIEF OPERATING OFFICER · ZYMEWORKS INC. · CIK 0002104446
FILING MIX · LIFETIME67%/33%
BUYS
4
SELLS
2
TOTAL VALUE
$138.8K
COMPANIES
1
ACTIVE SINCE
Jan 2026
HOLDINGS NOW
139,033
AVG SELL PX
$22.67
TRADE KIND
SHOWING 6 / 6
Trades · vs SPY
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Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 3 pending
Forward-return performance of every backtestable P/S trade by Mark Hollywood, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d1+0.00%+2.20%-2.53%+4.73%+4.73%
14d1+100.00%-1.08%-0.35%-0.73%-0.73%
30d1+100.00%-1.43%-0.46%-0.96%-0.96%
60d1+100.00%-1.21%-4.73%+3.52%+3.52%
90d1+0.00%+13.00%-1.30%+14.30%+14.30%
180d1(1 pending)
1y1(1 pending)
2y1(1 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ZYME · 139,033 shares · as of Jan 12, 2026
034,75869,517104,275139,033SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2026
FLOW · 4 buys / 2 sellsCOVERAGE · 1 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ZYME
ZYMEWORKS INC.
SALE
EVP & Chief Operating Officer
6,120$22.67$138.8K132,913Jan 12, 2026Jan 13, 2026View →
ZYME
ZYMEWORKS INC.
SALE
EVP & Chief Operating Officer
17,66635,334Jan 12, 2026Jan 13, 2026View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
47,00047,000Jan 12, 2026Jan 13, 2026View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
70,00070,000Jan 12, 2026Jan 13, 2026View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
66,00066,000Jan 12, 2026Jan 13, 2026View →
ZYME
ZYMEWORKS INC.
PURCHASE
EVP & Chief Operating Officer
17,666139,033Jan 12, 2026Jan 13, 2026View →
Other insiders · ZYME
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About this filer
CIK 0002104446
ROLE
EVP & Chief Operating Officer
PRIMARY
ZYME
COMPANIES
1
ACTIVE SINCE
Jan 2026
MARKETPEEL · /INSIDER/0002104446DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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