MarketPeel
Insider Trading Intelligence
KB

Kathleen Borthwick

PASG
CFO · PASSAGE BIO, INC. · CIK 0001987062
FILING MIX · LIFETIME53%/47%
BUYS
9
SELLS
8
TOTAL VALUE
$50.8K
COMPANIES
1
ACTIVE SINCE
Jul 2023
HOLDINGS NOW
15,610
AVG SELL PX
$2.92
TRADE KIND
SHOWING 17 / 17
Trades · vs SPY
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Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 4 pending
Forward-return performance of every backtestable P/S trade by Kathleen Borthwick, 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
7d4+25.00%+10.39%+0.56%+9.83%+15.52%
14d4+50.00%+8.28%+0.29%+7.99%+3.81%
30d4+50.00%-10.00%-0.25%-9.75%-6.38%
60d4+50.00%+9.88%-0.23%+10.12%+5.92%
90d4+50.00%+2.62%+2.81%-0.18%+1.45%
180d4(1 pending)+100.00%-21.99%+10.03%-32.02%-28.62%
1y4(1 pending)+100.00%-33.91%+21.31%-55.22%-62.66%
2y4(2 pending)+100.00%-45.22%+43.32%-88.54%-88.54%
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
PASG · 15,610 shares · as of Mar 16, 2026
069,597139,193208,790278,386202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 9 buys / 8 sellsCOVERAGE · 11 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
PASG
PASSAGE BIO, INC.
PURCHASEGRANT
Stock grant
15,61015,610Mar 16, 2026Mar 18, 2026View →
PASG
PASSAGE BIO, INC.
SALE
CFO
2,062$18.44$38.0K5,402Jan 8, 2026Jan 12, 2026View →
PASG
PASSAGE BIO, INC.
SALE
CFO
5,0005,000Jan 8, 2026Jan 12, 2026View →
PASG
PASSAGE BIO, INC.
PURCHASE
CFO
5,0007,464Jan 8, 2026Jan 12, 2026View →
PASG
PASSAGE BIO, INC.
PURCHASEGRANT
Stock grant
278,386278,386Mar 15, 2025Mar 18, 2025View →
PASG
PASSAGE BIO, INC.
SALE
CFO
3,183$0.53$1.7K41,283Feb 11, 2025Feb 12, 2025View →
PASG
PASSAGE BIO, INC.
PURCHASE
CFO
8,00044,466Feb 10, 2025Feb 12, 2025View →
PASG
PASSAGE BIO, INC.
SALE
CFO
8,0000Feb 10, 2025Feb 12, 2025View →
PASG
PASSAGE BIO, INC.
PURCHASEGRANT
Stock grant
10,00010,000Jan 15, 2025Dec 29, 2025View →
PASG
PASSAGE BIO, INC.
PURCHASEGRANT
Stock grant
227,000227,000Mar 15, 2024Mar 19, 2024View →
PASG
PASSAGE BIO, INC.
SALE
SVP, INTERIM CFO
1,470$0.97$1.4K28,466Feb 13, 2024Feb 13, 2024View →
PASG
PASSAGE BIO, INC.
PURCHASE
SVP, INTERIM CFO
4,00029,936Feb 10, 2024Feb 13, 2024View →
PASG
PASSAGE BIO, INC.
SALE
SVP, INTERIM CFO
4,0008,000Feb 10, 2024Feb 13, 2024View →
PASG
PASSAGE BIO, INC.
SALE
SVP, Interim CFO
10,672$0.91$9.7K25,936Jan 2, 2024Jan 3, 2024View →
PASG
PASSAGE BIO, INC.
SALE
SVP, Interim CFO
30,0000Dec 31, 2023Jan 3, 2024View →
PASG
PASSAGE BIO, INC.
PURCHASE
SVP, Interim CFO
30,00036,608Dec 31, 2023Jan 3, 2024View →
PASG
PASSAGE BIO, INC.
PURCHASEGRANT
Stock grant
20,00020,000Jul 28, 2023Jul 28, 2023View →
Other insiders · PASG
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About this filer
CIK 0001987062
ROLE
CFO
PRIMARY
PASG
COMPANIES
1
ACTIVE SINCE
Jul 2023
MARKETPEEL · /INSIDER/0001987062DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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