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John Richard Sylvester

DCTH
DIRECTOR · DELCATH SYSTEMS, INC. · CIK 0001784561
FILING MIX · LIFETIME100%/0%
BUYS
9
SELLS
0
TOTAL VALUE
$89.6K
COMPANIES
1
ACTIVE SINCE
Nov 2020
HOLDINGS NOW
22,500
AVG SELL PX
TRADE KIND
SHOWING 9 / 9
Trades · vs SPY
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Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by John Richard Sylvester, 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
7d2+50.00%+3.15%+2.24%+0.91%+0.91%
14d2+50.00%+0.34%+3.15%-2.81%-2.81%
30d2+50.00%-0.89%+2.05%-2.95%-2.95%
60d2+50.00%-7.70%-0.49%-7.21%-7.21%
90d2+50.00%-20.24%+3.81%-24.06%-24.06%
180d2+50.00%+4.55%+13.60%-9.05%-9.05%
1y2(1 pending)+100.00%+55.12%+28.95%+26.17%+26.17%
2y2(1 pending)+100.00%+103.35%+48.67%+54.68%+54.68%
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
DCTH · 22,500 shares · as of May 13, 2026
07,50015,00022,50030,000202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 9 buys / 0 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DCTH
DELCATH SYSTEMS, INC.
PURCHASEGRANT
Stock grant
22,50022,500May 13, 2026May 14, 2026View →
DCTH
DELCATH SYSTEMS, INC.
PURCHASE
4,386$8.89$39.0K14,936Nov 21, 2025Nov 25, 2025View →
DCTH
DELCATH SYSTEMS, INC.
PURCHASEGRANT
Stock grant
22,50022,500May 15, 2025May 19, 2025View →
DCTH
DELCATH SYSTEMS, INC.
PURCHASEGRANT
Stock grant
22,50022,500May 23, 2024May 28, 2024View →
DCTH
DELCATH SYSTEMS, INC.
PURCHASE
10,550$4.80$50.6K10,550Aug 21, 2023Aug 23, 2023View →
DCTH
DELCATH SYSTEMS, INC.
PURCHASEGRANT
Stock grant
19,68219,682Jun 12, 2023Jun 22, 2023View →
DCTH
DELCATH SYSTEMS, INC.
PURCHASEGRANT
Stock grant
9,0009,000May 4, 2022May 6, 2022View →
DCTH
DELCATH SYSTEMS, INC.
PURCHASEGRANT
Stock grant
9,0009,000Aug 5, 2021Aug 6, 2021View →
DCTH
DELCATH SYSTEMS, INC.
PURCHASEGRANT
Stock grant
30,00030,000Nov 23, 2020Nov 25, 2020View →
Other insiders · DCTH
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About this filer
CIK 0001784561
ROLE
Director
PRIMARY
DCTH
COMPANIES
1
ACTIVE SINCE
Nov 2020
MARKETPEEL · /INSIDER/0001784561DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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