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Argeris N. Karabelas

RGNX
DIRECTOR · REGENXBIO INC. · CIK 0001191229
FILING MIX · LIFETIME60%/40%
BUYS
21
SELLS
14
TOTAL VALUE
$923.1K
COMPANIES
2
ACTIVE SINCE
May 2020
HOLDINGS NOW
170,315
AVG SELL PX
$12.35
TRADE KIND
SHOWING 35 / 35
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
7 backtested trades · 8 horizons · 6 pending
Forward-return performance of every backtestable P/S trade by Argeris N. Karabelas, 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
7d7+71.43%-5.22%-1.16%-4.06%-7.17%—
14d7+42.86%+2.18%+1.50%+0.68%-1.08%—
30d7+85.71%-8.10%+2.49%-10.59%-15.87%—
60d7+85.71%-14.93%+4.86%-19.80%-26.24%—
90d7+100.00%-22.84%+7.13%-29.97%-32.98%—
180d7+100.00%-41.36%+8.30%-49.65%-54.22%—
1y7+100.00%-24.91%+16.70%-41.62%-39.99%—
2y7(6 pending)+0.00%+8.22%+36.94%-28.72%-28.72%—
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
RGNX · 46,600 shares · as of May 29, 2026
011,65023,30034,95046,600202120222023202420252026SHARES 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
2026
FLOW · 21 buys / 14 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
46,600——46,600May 29, 2026Jun 2, 2026 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
9,807——28,861May 29, 2026Jun 2, 2026 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
7,768——19,054May 30, 2025Jun 3, 2025 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
39,815——39,815May 30, 2025Jun 3, 2025 ↗View →
RGNX
REGENXBIO INC.
SALE10b5-1
10b5-1 plan
10,000$10.11$101.1K11,286Oct 1, 2024Oct 2, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE
10,000——0Oct 1, 2024Oct 2, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASE
10,000$3.76$37.6K21,286Oct 1, 2024Oct 2, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE
10,000——10,000Sep 3, 2024Sep 4, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE10b5-1
10b5-1 plan
9,300$11.50$107.0K11,986Sep 3, 2024Sep 4, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE10b5-1
10b5-1 plan
700$12.34$8.6K11,286Sep 3, 2024Sep 4, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASE
10,000$3.76$37.6K21,286Sep 3, 2024Sep 4, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE10b5-1
10b5-1 plan
100$15.00$1.5K11,286Aug 1, 2024Aug 5, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASE
10,000$3.76$37.6K21,286Aug 1, 2024Aug 5, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE
100——1,400Aug 1, 2024Aug 5, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE
10,000——20,000Aug 1, 2024Aug 5, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE10b5-1
10b5-1 plan
400$14.59$5.8K11,386Aug 1, 2024Aug 5, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE10b5-1
10b5-1 plan
9,600$13.45$129.1K11,786Aug 1, 2024Aug 5, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASE
100$12.74$1.3K21,386Aug 1, 2024Aug 5, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE10b5-1
10b5-1 plan
11,000$15.05$165.5K11,286Jul 29, 2024Jul 30, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE
11,000——1,500Jul 29, 2024Jul 30, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASE
11,000$12.74$140.1K22,286Jul 29, 2024Jul 30, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE10b5-1
10b5-1 plan
10,000$11.27$112.7K11,286Jul 1, 2024Jul 3, 2024 ↗View →
RGNX
REGENXBIO INC.
SALE
10,000——30,000Jul 1, 2024Jul 3, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASE
10,000$3.76$37.6K21,286Jul 1, 2024Jul 3, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
4,790——11,286May 31, 2024Jun 4, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
24,454——24,454May 31, 2024Jun 4, 2024 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
17,892——17,892Jun 2, 2023Jun 6, 2023 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
3,486——6,496Jun 2, 2023Jun 6, 2023 ↗View →
BHC
BAUSCH HEALTH COMPANIES INC.
PURCHASEGRANT
Stock grant
34,387——123,715Jun 24, 2022Jun 28, 2022 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
3,010——3,010Jun 3, 2022Jun 7, 2022 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
15,324——15,324Jun 3, 2022Jun 7, 2022 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
10,000——10,000Jun 4, 2021Jun 8, 2021 ↗View →
BHC
BAUSCH HEALTH COMPANIES INC.
PURCHASEGRANT
Stock grant
7,645——89,328Apr 30, 2021May 3, 2021 ↗View →
RGNX
REGENXBIO INC.
PURCHASEGRANT
Stock grant
10,000——10,000May 29, 2020Jun 2, 2020 ↗View →
BHC
BAUSCH HEALTH COMPANIES INC.
PURCHASEGRANT
Stock grant
11,037——81,683May 1, 2020May 1, 2020 ↗View →
Other insiders · RGNX
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About this filer
CIK 0001191229
ROLE
Director
PRIMARY
RGNX
COMPANIES
2
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001191229DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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