ZYMEZymeworks Inc.Healthcare · Biotechnologyas of 2026-09-16
Horizon

Issued 2026-09-16 at $26.24 · now $26.24 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, ZYME has typically landed between $20.19 and $33.35 — a range of −23.0% to +27.1% from the issuance price $26.24.

Range of outcomes in historically similar periods — not a price prediction. Ranges are scored publicly on /methodology.
  • Actual close
  • Typical path (median)
  • Middle 50% of outcomes
  • 90% range

2,338 overlapping 1 month windows · 2017-04-28 – 2026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.7–56.1%, ≈1,408 obs).

The cone is anchored at the 2026-09-16 issuance close ($26.24) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.

Where ZYME has typically landed a month from the 2026-09-16 close of $26.24 — the range is history, not a prediction.

$20.19worst · -23.0%$33.35best · +27.1%
  • now $26.24 (+0.0%)
  • typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $26.68 (+1.7%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $23.97–$29.39
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $20.19–$33.35
Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 2,338 windows spanning 2017-04-28 to 2026-09-16. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.
StartReturnMax dropMax rise
3 worst
2022-01-04−53.8%−53.8%+0.0%
2022-01-03−53.7%−53.7%+0.0%
2022-01-13−49.9%−49.9%+2.8%
3 best
2017-12-26+80.2%+0.0%+80.2%
2017-12-29+73.8%+0.0%+73.8%
2017-12-28+73.4%+0.0%+73.5%

2,338 overlapping windows · 2017-04-28 – 2026-09-16 · not cherry-picked

Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.

iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~10 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.
Jan
44%
+1.6%
n=9
Feb
33%
−5.7%
n=9
Mar
44%
−2.1%
n=9
Apr
67%
+4.6%
n=9
May
30%
+0.7%
n=10
Jun
60%
−3.8%
n=10
Jul
40%
−4.4%
n=10
Aug
90%
+12.8%
n=10
Sep
40%
+2.4%
n=10
Oct
67%
+4.3%
n=9
Nov
78%
+13.5%
n=9
Dec
56%
+0.5%
n=9

Up-frequency and average month-over-month return · historical frequency, not a prediction

Reported insider & political trades

Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.

Share price & reported tradesMonthly open-market valueReporting lag — trade date to filing date2026-092026-082026-072026-062026-052026-042026-032026-022026-012025-122025-112025-102025-092025-08$31$132026-01-12: 4 insider sales, $1.3M — Galbraith Kenneth, Moore Paul Andrew, Smith Jeffrey T L, Hollywood Mark2026-01-05: 5 insider sales, $2.1M — Galbraith Kenneth, Moore Paul Andrew, Smith Jeffrey T L …2025-12-22: 1 insider sale, $1.3M — Galbraith Kenneth2025-12: 1 open-market sale, $1.3M2026-01: 9 open-market sales, $3.4M↑ buys↓ salesdirector Galbraith Kenneth — Sale on 2026-01-12, filed same dayofficer Moore Paul Andrew — Sale on 2026-01-12, filed same dayofficer Smith Jeffrey T L — Sale on 2026-01-12, filed same dayofficer Hollywood Mark — Sale on 2026-01-12, filed 1 day after the tradedirector Galbraith Kenneth — Sale on 2026-01-05, filed same daydirector Galbraith Kenneth — Sale on 2026-01-05, filed same dayofficer Moore Paul Andrew — Sale on 2026-01-05, filed same dayofficer Smith Jeffrey T L — Sale on 2026-01-05, filed same dayofficer Moore Paul Andrew — Sale on 2026-01-05, filed same daydirector Galbraith Kenneth — Sale on 2025-12-22, filed same day
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-01-12Galbraith KennethdirectorSale30,424 @ $22.67$690K−11.8% of holding−1.0%−2.7%226,842Form 4 · filed same day
2026-01-12Moore Paul AndrewofficerSale9,560 @ $22.67$217K−16.5% of holding−1.0%−2.7%48,497Form 4 · filed same day
2026-01-12Smith Jeffrey T LofficerSale9,310 @ $22.67$211K−25.8% of holding−1.0%−2.7%26,708Form 4 · filed same day
2026-01-12Hollywood MarkofficerSale6,120 @ $22.67$139K−4.4% of holding−1.0%−2.7%132,913Form 4 · filed 1 day after the trade
2026-01-05Galbraith KennethdirectorSale31,686 @ $25.10$795K−14.1% of holding−9.1%−4.4%193,266Form 4 · filed same day
2026-01-05Galbraith KennethdirectorSale22,657 @ $25.10$569K−12.5% of holding−9.1%−4.4%158,286Form 4 · filed same day
2026-01-05Moore Paul AndrewofficerSale10,821 @ $25.10$272K−21.1% of holding−9.1%−4.4%40,391Form 4 · filed same day
2026-01-05Smith Jeffrey T LofficerSale10,538 @ $25.10$264K−36.5% of holding−9.1%−4.4%18,352Form 4 · filed same day
2026-01-05Moore Paul AndrewofficerSale9,289 @ $25.10$233K−22.9% of holding−9.1%−4.4%31,212Form 4 · filed same day
2025-12-22Galbraith KennethdirectorSale47,528 @ $27.02$1.3M−26.3% of holding−16.5%−21.7%133,275Form 4 · filed same day
2025-05-19EcoR1 Capital, LLCdirectorPurchase5,919 @ $11.78$70K+0.0% of holding+6.4%+89.7%17,883,908Form 4 · filed same day
2025-05-15EcoR1 Capital, LLCdirectorPurchase49,502 @ $11.43$566K+0.3% of holding+7.6%+46.0%17,877,989Form 4 · filed 4 days after the trade
2025-04-17EcoR1 Capital, LLCdirectorPurchase54,760 @ $11.52$631K+0.3% of holding−10.5%+32.6%17,828,487Form 4 · filed 1 day after the trade
2025-04-16EcoR1 Capital, LLCdirectorPurchase73,953 @ $11.16$826K+0.4% of holding−9.0%+38.5%17,773,727Form 4 · filed 2 days after the trade
2025-04-04EcoR1 Capital, LLCdirectorPurchase196,438 @ $11.17$2.2M+1.1% of holding−3.4%+18.6%17,699,774Form 4 · filed 3 days after the trade
2025-04-03EcoR1 Capital, LLCdirectorPurchase120,770 @ $11.84$1.4M+0.7% of holding+4.4%+18.8%17,503,336Form 4 · filed 4 days after the trade
2025-04-02EcoR1 Capital, LLCdirectorPurchase74,360 @ $11.85$881K+0.4% of holding+8.3%+22.6%17,382,566Form 4 · filed same day
2025-04-01EcoR1 Capital, LLCdirectorPurchase48,658 @ $11.60$565K+0.3% of holding+11.3%+25.9%17,308,206Form 4 · filed 1 day after the trade
2025-03-31EcoR1 Capital, LLCdirectorPurchase4,397 @ $11.75$52K+0.0% of holding+10.1%+23.6%17,259,548Form 4 · filed 2 days after the trade
2025-03-26EcoR1 Capital, LLCdirectorPurchase43,848 @ $12.24$537K+0.3% of holding+4.9%+14.5%17,255,151Form 4 · filed 1 day after the trade
2025-03-25EcoR1 Capital, LLCdirectorPurchase53,501 @ $12.91$690K+0.3% of holding+2.8%+11.8%17,211,303Form 4 · filed 2 days after the trade
2025-03-24EcoR1 Capital, LLCdirectorPurchase22,689 @ $13.08$297K+0.1% of holding+2.1%+9.2%17,157,802Form 4 · filed same day
2025-03-21EcoR1 Capital, LLCdirectorPurchase31,033 @ $12.78$397K+0.2% of holding+2.1%+11.0%17,135,113Form 4 · filed 3 days after the trade
2025-03-20EcoR1 Capital, LLCdirectorPurchase73,476 @ $12.93$950K+0.4% of holding−0.3%+7.3%17,104,080Form 4 · filed 4 days after the trade
2025-03-19EcoR1 Capital, LLCdirectorPurchase58,306 @ $12.64$737K+0.3% of holding−3.0%+11.5%17,030,604Form 4 · filed same day
2025-03-18EcoR1 Capital, LLCdirectorPurchase113,880 @ $12.65$1.4M+0.7% of holding−2.8%+10.4%16,972,298Form 4 · filed 1 day after the trade
2025-03-17EcoR1 Capital, LLCdirectorPurchase56,277 @ $12.23$688K+0.3% of holding−8.1%+8.8%16,858,418Form 4 · filed 2 days after the trade
2025-03-13EcoR1 Capital, LLCdirectorPurchase468,356 @ $12.48$5.8M+2.9% of holding−12.4%+5.5%16,802,141Form 4 · filed same day
2025-03-12EcoR1 Capital, LLCdirectorPurchase292,934 @ $12.25$3.6M+1.8% of holding−17.3%+14.5%16,333,785Form 4 · filed 1 day after the trade
2025-03-11EcoR1 Capital, LLCdirectorPurchase320,690 @ $11.49$3.7M+2.0% of holding−13.5%+11.8%16,040,851Form 4 · filed 2 days after the trade
2025-01-17EcoR1 Capital, LLCdirectorPurchase19,748 @ $13.87$274K+0.1% of holding+4.2%−2.7%15,720,161Form 4 · filed 4 days after the trade
2025-01-16EcoR1 Capital, LLCdirectorPurchase121,681 @ $13.88$1.7M+0.8% of holding+1.5%−4.6%15,700,413Form 4 · filed 5 days after the trade
2025-01-15EcoR1 Capital, LLCdirectorPurchase39,029 @ $14.01$547K+0.3% of holding+4.1%−5.0%15,578,732Form 4 · filed same day
2025-01-14EcoR1 Capital, LLCdirectorPurchase54,500 @ $13.56$739K+0.4% of holding+2.6%−2.2%15,539,703Form 4 · filed 1 day after the trade
2025-01-13EcoR1 Capital, LLCdirectorPurchase74,125 @ $13.39$993K+0.5% of holding−1.3%−11.2%15,485,203Form 4 · filed 2 days after the trade
2025-01-10EcoR1 Capital, LLCdirectorPurchase204,098 @ $13.13$2.7M+1.3% of holding−4.0%−10.4%15,411,078Form 4 · filed same day
2025-01-08EcoR1 Capital, LLCdirectorPurchase21,021 @ $14.07$296K+0.1% of holding−2.2%−12.1%15,206,980Form 4 · filed 2 days after the trade
2025-01-06Moore Paul AndrewofficerSale11,408 @ $14.92$170K−32.8% of holding+1.3%−11.3%23,333Form 4 · filed same day
2025-01-06Smith Jeffrey T LofficerSale11,110 @ $14.92$166K−55.5% of holding+1.3%−11.3%8,890Form 4 · filed same day
2025-01-06Moore Paul AndrewofficerSale9,792 @ $14.92$146K−39.9% of holding+1.3%−11.3%14,741Form 4 · filed same day
2025-01-02EcoR1 Capital, LLCdirectorPurchase157,880 @ $14.78$2.3M+1.1% of holding−6.6%−19.1%15,185,959Form 4 · filed same day
2024-12-31EcoR1 Capital, LLCdirectorPurchase146,501 @ $14.57$2.1M+1.0% of holding−1.6%−17.2%15,028,079Form 4 · filed 2 days after the trade
2024-12-30EcoR1 Capital, LLCdirectorPurchase58,988 @ $14.47$853K+0.4% of holding−1.7%−17.1%14,881,578Form 4 · filed 3 days after the trade
2024-12-27EcoR1 Capital, LLCdirectorPurchase101,659 @ $14.49$1.5M+0.7% of holding−0.0%−16.0%14,822,590Form 4 · filed same day
2024-12-26EcoR1 Capital, LLCdirectorPurchase16,692 @ $14.38$240K+0.1% of holding+0.7%−17.7%14,720,931Form 4 · filed 1 day after the trade
2024-12-24EcoR1 Capital, LLCdirectorPurchase11,958 @ $14.12$169K+0.1% of holding+2.4%−14.6%14,704,239Form 4 · filed 3 days after the trade
2023-12-26EcoR1 Capital, LLCdirectorPurchase5,086,521 @ $9.83$50.0Mownership Δ n/a−5.1%−36.9%5,086,521Form 4 · filed 363 days after the trade

The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.

84 award / exercise / gift records — not counted as purchases

Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.

DatePersonRoleActionSharesOwned afterFiling
2026-07-06Hollywood MarkofficerAward / grant939133,852Form 4
2026-05-13Schneider Paul RofficerAward / grant119,000119,000Form 4
2026-05-13Schneider Paul RofficerAward / grant178,000178,000Form 4
2026-04-09Platshon ScottofficerAward / grant70,00070,000Form 4
2026-04-09Platshon ScottofficerAward / grant47,00047,000Form 4
2026-04-09Schayowitz AdamofficerAward / grant70,00070,000Form 4
2026-04-09Platshon ScottofficerAward / grant76,00076,000Form 4
2026-04-09Schayowitz AdamofficerAward / grant47,00047,000Form 4
2026-04-09Schayowitz AdamofficerAward / grant76,00076,000Form 4
2026-04-06Stafford KristindirectorAward / grant50,00050,000Form 4
2026-04-06Stafford KristindirectorAward / grant119,000119,000Form 4
2026-04-06Stafford KristindirectorAward / grant178,000178,000Form 4
2026-01-12Moore Paul AndrewofficerOption exercise17,66635,334Form 4
2026-01-12Moore Paul AndrewofficerAward / grant70,00070,000Form 4
2026-01-12Moore Paul AndrewofficerAward / grant47,00047,000Form 4
2026-01-12Moore Paul AndrewofficerAward / grant66,00066,000Form 4
2026-01-12Ciongoli Gregory AustindirectorAward / grant7,7007,700Form 4
2026-01-12Ciongoli Gregory AustindirectorAward / grant11,50011,500Form 4
2026-01-12Moore Paul AndrewofficerOption exercise17,66658,057Form 4
2026-01-12Cherry Brian NdirectorAward / grant23,00023,000Form 4
2026-01-12Cherry Brian NdirectorAward / grant15,40015,400Form 4
2026-01-12Smith Jeffrey T LofficerOption exercise17,66635,334Form 4
2026-01-12Smith Jeffrey T LofficerOption exercise17,66636,018Form 4
2026-01-12Hollywood MarkofficerOption exercise17,666139,033Form 4
2026-01-12Hollywood MarkofficerOption exercise17,66635,334Form 4
2026-01-12Hollywood MarkofficerAward / grant70,00070,000Form 4
2026-01-12Hollywood MarkofficerAward / grant47,00047,000Form 4
2026-01-12Neu KelvindirectorAward / grant11,50011,500Form 4
2026-01-12Neu KelvindirectorAward / grant7,7007,700Form 4
2026-01-12Landry Robert EdirectorAward / grant7,7007,700Form 4
2026-01-12Landry Robert EdirectorAward / grant11,50011,500Form 4
2026-01-12Galbraith KennethdirectorAward / grant216,000216,000Form 4
2026-01-12Galbraith KennethdirectorAward / grant144,000144,000Form 4
2026-01-12Galbraith KennethdirectorAward / grant222,000222,000Form 4
2026-01-12Galbraith KennethdirectorOption exercise64,000257,266Form 4
2026-01-12Galbraith KennethdirectorOption exercise64,000128,000Form 4
2026-01-12Cesano AlessandradirectorAward / grant11,50011,500Form 4
2026-01-12Cesano AlessandradirectorAward / grant7,7007,700Form 4
2026-01-12Mahony SusandirectorAward / grant11,50011,500Form 4
2026-01-12Mahony SusandirectorAward / grant7,7007,700Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.

Congressional disclosures

No congressional trades disclosed for this company.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.