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KG

Kenneth Galbraith

ZYME
CHAIR & CEO · ZYMEWORKS INC. · CIK 0001567045
FILING MIX · LIFETIME54%/46%
BUYS
22
SELLS
19
TOTAL VALUE
$5.38M
COMPANIES
2
ACTIVE SINCE
May 2020
HOLDINGS NOW
231,000
AVG SELL PX
$21.40
TRADE KIND
SHOWING 41 / 41
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 11 pending
Forward-return performance of every backtestable P/S trade by Kenneth Galbraith, 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
7d10+60.00%-1.89%-0.33%-1.56%-1.11%—
14d10+100.00%-6.20%-0.47%-5.73%-4.79%—
30d10+70.00%-3.64%+1.73%-5.38%-7.57%—
60d10+90.00%-10.21%+1.07%-11.28%-11.22%—
90d10+70.00%-10.58%-0.56%-10.01%-12.84%—
180d10(1 pending)+77.78%-8.76%+11.01%-19.77%-16.23%—
1y10(4 pending)+33.33%+28.44%+25.84%+2.60%+6.20%—
2y10(6 pending)+50.00%+21.99%+35.82%-13.82%-19.88%—
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 · 216,000 shares · as of Jan 12, 2026
0125,000250,000375,000500,0002023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 22 buys / 19 sellsCOVERAGE · 24 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
144,000——144,000Jan 12, 2026Jan 12, 2026 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
30,424$22.67$689.8K226,842Jan 12, 2026Jan 12, 2026 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASE
Chair & CEO
64,000——257,266Jan 12, 2026Jan 12, 2026 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
64,000——128,000Jan 12, 2026Jan 12, 2026 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
222,000——222,000Jan 12, 2026Jan 12, 2026 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
216,000——216,000Jan 12, 2026Jan 12, 2026 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
47,668——0Jan 5, 2026Jan 5, 2026 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
22,657$25.10$568.6K158,286Jan 5, 2026Jan 5, 2026 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
66,666——66,668Jan 5, 2026Jan 5, 2026 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASE
Chair & CEO
47,668——180,943Jan 5, 2026Jan 5, 2026 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
31,686$25.10$795.2K193,266Jan 5, 2026Jan 5, 2026 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASE
Chair & CEO
66,666——224,952Jan 5, 2026Jan 5, 2026 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
100,000——0Dec 22, 2025Dec 22, 2025 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASE
Chair & CEO
100,000——180,803Dec 22, 2025Dec 22, 2025 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
47,528$27.02$1.28M133,275Dec 22, 2025Dec 22, 2025 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
288,000——288,000Jan 10, 2025Jan 10, 2025 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
192,000——192,000Jan 10, 2025Jan 10, 2025 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASE
Chair & CEO
66,666——114,209Jan 6, 2025Jan 6, 2025 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
66,666——133,334Jan 6, 2025Jan 6, 2025 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASE
Chair & CEO
47,666——71,428Jan 6, 2025Jan 6, 2025 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
33,406$14.92$498.6K80,803Jan 6, 2025Jan 6, 2025 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
23,885$14.92$356.5K47,543Jan 6, 2025Jan 6, 2025 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
47,666——47,668Jan 6, 2025Jan 6, 2025 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
5,706$11.22$64.0K23,762Jan 8, 2024Jan 8, 2024 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASE
Chair & CEO
47,666——47,666Jan 5, 2024Jan 8, 2024 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
200,000——200,000Jan 5, 2024Jan 8, 2024 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
300,000——300,000Jan 5, 2024Jan 8, 2024 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
18,198$10.65$193.8K29,468Jan 5, 2024Jan 8, 2024 ↗View →
ZYME
ZYMEWORKS INC.
SALE
Chair & CEO
47,666——95,334Jan 5, 2024Jan 8, 2024 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
143,000——143,000Jan 5, 2023Jan 6, 2023 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
215,000——215,000Jan 5, 2023Jan 6, 2023 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
100,000——100,000Dec 22, 2022Dec 23, 2022 ↗View →
ZYME
ZYMEWORKS INC.
PURCHASEGRANT
Stock grant
500,000——500,000Jan 15, 2022Jan 18, 2022 ↗View →
MGNX
MACROGENICS INC
PURCHASEGRANT
Stock grant
15,000——15,000May 13, 2021May 17, 2021 ↗View →
MGNX
MACROGENICS INC
SALE
13,849$27.11$375.4K0Sep 9, 2020Sep 10, 2020 ↗View →
MGNX
MACROGENICS INC
SALE
13,849——0Sep 9, 2020Sep 10, 2020 ↗View →
MGNX
MACROGENICS INC
SALE
6,924——0Sep 9, 2020Sep 10, 2020 ↗View →
MGNX
MACROGENICS INC
PURCHASE
13,849$16.00$221.6K13,849Sep 9, 2020Sep 10, 2020 ↗View →
MGNX
MACROGENICS INC
SALE
6,924$27.11$187.7K0Sep 9, 2020Sep 10, 2020 ↗View →
MGNX
MACROGENICS INC
PURCHASE
6,924$20.15$139.5K6,924Sep 9, 2020Sep 10, 2020 ↗View →
MGNX
MACROGENICS INC
PURCHASEGRANT
Stock grant
15,000——15,000May 14, 2020May 15, 2020 ↗View →
Other insiders · ZYME
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About this filer
CIK 0001567045
ROLE
Chair & CEO
PRIMARY
ZYME
COMPANIES
2
ACTIVE SINCE
May 2020
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