MarketPeel
Insider Trading Intelligence
JM

John Markels

ARCT
DIRECTOR · ARCTURUS THERAPEUTICS HOLDINGS INC. · CIK 0001803424
FILING MIX · LIFETIME95%/5%
BUYS
21
SELLS
1
TOTAL VALUE
$25.0K
COMPANIES
2
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
65,000
AVG SELL PX
TRADE KIND
SHOWING 22 / 22
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizons
Forward-return performance of every backtestable P/S trade by John Markels, 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+100.00%+1.07%-5.05%+6.13%+6.13%
14d1+0.00%-3.76%-10.50%+6.73%+6.73%
30d1+100.00%+15.05%-6.74%+21.79%+21.79%
60d1+100.00%+19.36%-0.17%+19.53%+19.53%
90d1+100.00%+49.73%-3.02%+52.75%+52.75%
180d1+0.00%-1.61%+0.14%-1.76%-1.76%
1y1+0.00%-69.09%+6.00%-75.09%-75.09%
2y1+0.00%-84.33%+32.64%-116.97%-116.97%
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
ARCT · 15,000 shares · as of Jun 5, 2026
05,00010,00015,00020,0002023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 21 buys / 1 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
PURCHASEGRANT
Stock grant
15,00015,000Jun 5, 2026Jun 15, 2026View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
25,00096,384Jun 12, 2025Jun 16, 2025View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
50,00050,000Jun 12, 2025Jun 16, 2025View →
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
PURCHASEGRANT
Stock grant
15,00015,000Jun 9, 2025Jun 11, 2025View →
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
PURCHASE
3,1313,131Jun 14, 2024Jun 18, 2024View →
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
SALE
3,1310Jun 14, 2024Jun 18, 2024View →
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
PURCHASEGRANT
Stock grant
15,00015,000Jun 14, 2024Jun 18, 2024View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
50,00050,000Jun 4, 2024Jun 6, 2024View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
25,00071,384Jun 4, 2024Jun 6, 2024View →
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
PURCHASEGRANT
Stock grant
11,86911,869Aug 1, 2023Aug 3, 2023View →
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
PURCHASEGRANT
Stock grant
3,1313,131Aug 1, 2023Aug 3, 2023View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
13,90046,384Jun 1, 2023Jun 5, 2023View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
27,75027,750Jun 1, 2023Jun 5, 2023View →
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
PURCHASEGRANT
Stock grant
20,00020,000Dec 8, 2022Dec 13, 2022View →
ARCT
ARCTURUS THERAPEUTICS HOLDINGS INC.
PURCHASEGRANT
Stock grant
6,9866,986Dec 8, 2022Dec 13, 2022View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASE
6,784$3.69$25.0K32,484Jun 3, 2022Jun 6, 2022View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
25,00025,000Feb 25, 2022Mar 1, 2022View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
12,50025,700Feb 25, 2022Mar 1, 2022View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
16,40016,400Feb 25, 2021Mar 1, 2021View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
8,20013,200Feb 25, 2021Mar 1, 2021View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
30,00030,000Feb 11, 2020Feb 13, 2020View →
SGMO
SANGAMO THERAPEUTICS, INC
PURCHASEGRANT
Stock grant
5,0005,000Feb 11, 2020Feb 13, 2020View →
Other insiders · ARCT
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About this filer
CIK 0001803424
ROLE
Director
PRIMARY
ARCT
COMPANIES
2
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001803424DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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