MarketPeel
Insider Trading Intelligence
Pricing
…
JS

John Shinn

RMBS
SVP, GENERAL COUNSEL · RAMBUS INC · CIK 0001847137
FILING MIX · LIFETIME24%/76%
BUYS
9
SELLS
29
TOTAL VALUE
$7.11M
COMPANIES
1
ACTIVE SINCE
Feb 2021
HOLDINGS NOW
21,112
AVG SELL PX
$60.47
TRADE KIND
SHOWING 38 / 38
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
18 backtested trades · 8 horizons · 20 pending
Forward-return performance of every backtestable P/S trade by John Shinn, 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
7d18+44.44%-0.64%-0.68%+0.03%+0.85%—
14d18+38.89%+0.14%-1.37%+1.52%+0.84%—
30d18+50.00%+1.92%-1.56%+3.48%+4.32%—
60d18+38.89%+11.82%+3.53%+8.29%+7.46%—
90d18+33.33%+21.99%+3.78%+9.40%+0.82%—
180d18(5 pending)+38.46%+6.53%+6.58%-0.05%+9.53%—
1y18(6 pending)+33.33%+29.43%+7.96%+21.47%+27.77%—
2y18(9 pending)+0.00%+85.71%+20.77%+64.93%+31.24%—
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
RMBS · 21,112 shares · as of May 22, 2026
011,70123,40235,10246,80320222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
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 / 29 sellsCOVERAGE · 22 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
RMBS
RAMBUS INC
SALE
SVP, General Counsel
1,000$143.63$143.6K21,112May 22, 2026May 26, 2026 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
1,913$89.95$172.1K22,112Apr 1, 2026Apr 3, 2026 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
5,558——24,025Apr 1, 2026Apr 3, 2026 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
200$89.55$17.9K18,467Mar 10, 2026Mar 11, 2026 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
4,356$88.64$386.1K18,667Mar 10, 2026Mar 11, 2026 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
700$94.89$66.4K23,023Mar 3, 2026Mar 4, 2026 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
2,254$92.77$209.1K25,326Mar 3, 2026Mar 4, 2026 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
1,603$94.07$150.8K23,723Mar 3, 2026Mar 4, 2026 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
17,276——37,464Feb 1, 2026Feb 3, 2026 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
9,884$113.71$1.12M27,580Feb 1, 2026Feb 3, 2026 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
790$74.61$58.9K20,188Aug 4, 2025Aug 5, 2025 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
817$52.29$42.7K20,978Apr 1, 2025Apr 3, 2025 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
8,605——21,795Apr 1, 2025Apr 3, 2025 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
7,632$55.73$425.3K13,190Mar 21, 2025Mar 25, 2025 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
7,633$52.98$404.4K20,822Mar 14, 2025Mar 18, 2025 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
18,777——39,405Feb 1, 2025Feb 4, 2025 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
10,950$60.35$660.8K28,455Feb 1, 2025Feb 4, 2025 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
2,462$58.13$143.1K20,628Dec 12, 2024Dec 13, 2024 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
6,427——23,090Apr 1, 2024Apr 2, 2024 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
3,947$62.71$247.5K16,663Mar 26, 2024Mar 27, 2024 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
3,949$58.84$232.3K20,610Mar 19, 2024Mar 20, 2024 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
3,889$62.68$243.8K24,559Mar 12, 2024Mar 13, 2024 ↗View →
RMBS
RAMBUS INC
SALE10b5-1
10b5-1 plan
3,928$64.93$255.0K28,448Mar 7, 2024Mar 8, 2024 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
1,268$68.37$86.7K32,376Feb 5, 2024Feb 6, 2024 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
22,664——46,803Feb 1, 2024Feb 2, 2024 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
13,159$68.15$896.8K33,644Feb 1, 2024Feb 2, 2024 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
8,505$44.82$381.2K24,139Mar 6, 2023Mar 7, 2023 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
865$43.62$37.7K32,644Feb 3, 2023Feb 6, 2023 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
8,638——33,509Feb 1, 2023Feb 2, 2023 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
3,908$43.41$169.6K24,871Feb 1, 2023Feb 2, 2023 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
10,073$26.81$270.1K28,779Feb 15, 2022Feb 16, 2022 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
865$25.07$21.7K38,852Feb 3, 2022Feb 4, 2022 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
4,895$25.56$125.1K29,937Feb 1, 2022Feb 2, 2022 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
9,780——39,717Feb 1, 2022Feb 2, 2022 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
2,033$24.55$49.9K34,832Nov 17, 2021Nov 18, 2021 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
2,037$23.68$48.2K36,865Aug 17, 2021Aug 18, 2021 ↗View →
RMBS
RAMBUS INC
SALE
SVP, General Counsel
2,037$18.43$37.5K38,902May 17, 2021May 18, 2021 ↗View →
RMBS
RAMBUS INC
PURCHASEGRANT
Stock grant
11,332——40,939Feb 19, 2021Feb 22, 2021 ↗View →
Other insiders · RMBS
Loading peer insiders…
About this filer
CIK 0001847137
ROLE
SVP, General Counsel
PRIMARY
RMBS
COMPANIES
1
ACTIVE SINCE
Feb 2021
MARKETPEEL · /INSIDER/0001847137DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

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

Feedback