MarketPeel
Insider Trading Intelligence
JG

James R. II Gibson

PACB
SEE REMARKS · PACIFIC BIOSCIENCES OF CALIFORNIA, INC. · CIK 0001384133
FILING MIX · LIFETIME80%/20%
BUYS
4
SELLS
1
TOTAL VALUE
$120.8K
COMPANIES
1
ACTIVE SINCE
Mar 2025
HOLDINGS NOW
1,245,663
AVG SELL PX
$1.37
TRADE KIND
SHOWING 5 / 5
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 3 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by James R. II Gibson, 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+0.00%+8.89%+3.17%+5.72%+5.72%
14d1+0.00%+18.52%+6.82%+11.70%+11.70%
30d1+0.00%+18.52%+9.98%+8.54%+8.54%
60d1+0.00%+10.37%
90d1+0.00%+17.78%+13.09%+4.69%+4.69%
180d1(1 pending)
1y1(1 pending)
2y1(1 pending)
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
PACB · 1,245,663 shares · as of Apr 1, 2026
0500,0001,000,0001,500,0002,000,0002026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2025
2025
2025
2025
2026
2026
FLOW · 4 buys / 1 sellsCOVERAGE · 6 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
PACB
PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
SALE
See Remarks
88,185$1.37$120.8K1,245,663Apr 1, 2026Apr 3, 2026View →
PACB
PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
PURCHASEGRANT
Stock grant
667,696667,696Feb 27, 2026Mar 3, 2026View →
PACB
PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
PURCHASEGRANT
Stock grant
333,8481,333,848Feb 27, 2026Mar 3, 2026View →
PACB
PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
PURCHASEGRANT
Stock grant
2,000,0002,000,000Mar 31, 2025Apr 2, 2025View →
PACB
PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
PURCHASEGRANT
Stock grant
1,000,0001,000,000Mar 31, 2025Apr 2, 2025View →
Other insiders · PACB
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About this filer
CIK 0001384133
ROLE
See Remarks
PRIMARY
PACB
COMPANIES
1
ACTIVE SINCE
Mar 2025
MARKETPEEL · /INSIDER/0001384133DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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