MarketPeel
Insider Trading Intelligence
PW

Ping Tak Wu

GSIT
VP, U.S. OPERATIONS · GSI TECHNOLOGY INC · CIK 0001394447
FILING MIX · LIFETIME71%/29%
BUYS
12
SELLS
5
TOTAL VALUE
$913.4K
COMPANIES
1
ACTIVE SINCE
Aug 2020
HOLDINGS NOW
178,441
AVG SELL PX
$8.59
TRADE KIND
SHOWING 17 / 17
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Ping Tak Wu, 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%-0.18%+1.55%-1.73%-1.73%
14d1+100.00%-1.64%+0.61%-2.25%-2.25%
30d1+100.00%-0.91%-0.21%-0.70%-0.70%
60d1+100.00%-13.46%+2.41%-15.86%-15.86%
90d1+0.00%+7.09%+5.53%+1.56%+1.56%
180d1+100.00%-24.00%-3.09%-20.91%-20.91%
1y1+100.00%-35.61%-7.88%-27.73%-27.73%
2y1+100.00%-39.45%+1.63%-41.09%-41.09%
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
GSIT · 178,441 shares · as of May 26, 2026
044,61089,221133,831178,441202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
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 · 12 buys / 5 sellsCOVERAGE · 24 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GSIT
GSI TECHNOLOGY INC
PURCHASE
VP, U.S. Operations
30,000$4.99$149.7K178,441May 26, 2026May 27, 2026View →
GSIT
GSI TECHNOLOGY INC
SALE
VP, U.S. Operations
30,000$11.01$330.4K148,441May 26, 2026May 27, 2026View →
GSIT
GSI TECHNOLOGY INC
SALE
VP, U.S. Operations
30,0000May 26, 2026May 27, 2026View →
GSIT
GSI TECHNOLOGY INC
SALE
VP, U.S. Operations
11,763$10.80$127.0K147,647May 12, 2026May 14, 2026View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
15,00015,000Feb 2, 2026Feb 4, 2026View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
30,00030,000Aug 4, 2025Aug 5, 2025View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
15,00015,000May 5, 2025May 6, 2025View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
30,00030,000Jul 29, 2024Jul 30, 2024View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
15,00015,000Jan 29, 2024Jan 30, 2024View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
30,00030,000Jul 31, 2023Aug 1, 2023View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
15,00015,000Dec 2, 2022Dec 2, 2022View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
30,00030,000Aug 1, 2022Aug 2, 2022View →
GSIT
GSI TECHNOLOGY INC
SALE
VP, U.S. Operations
30,0000Aug 26, 2021Aug 27, 2021View →
GSIT
GSI TECHNOLOGY INC
SALE
VP, U.S. Operations
30,000$5.31$159.3K142,605Aug 26, 2021Aug 27, 2021View →
GSIT
GSI TECHNOLOGY INC
PURCHASE
VP, U.S. Operations
30,000$4.90$147.0K172,605Aug 26, 2021Aug 27, 2021View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
30,00030,000Aug 2, 2021Aug 3, 2021View →
GSIT
GSI TECHNOLOGY INC
PURCHASEGRANT
Stock grant
30,00030,000Aug 3, 2020Aug 4, 2020View →
Other insiders · GSIT
Loading peer insiders…
About this filer
CIK 0001394447
ROLE
VP, U.S. Operations
PRIMARY
GSIT
COMPANIES
1
ACTIVE SINCE
Aug 2020
MARKETPEEL · /INSIDER/0001394447DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback