MarketPeel
Insider Trading Intelligence
EB

Erin Burkhart

BMRN
GVP, CHIEF ACCOUNTING OFFICER · BIOMARIN PHARMACEUTICAL INC · CIK 0001927648
FILING MIX · LIFETIME52%/48%
BUYS
11
SELLS
10
TOTAL VALUE
$857.5K
COMPANIES
2
ACTIVE SINCE
May 2022
HOLDINGS NOW
19,628
AVG SELL PX
$75.19
TRADE KIND
SHOWING 21 / 21
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 4 pending
Forward-return performance of every backtestable P/S trade by Erin Burkhart, 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
7d5+20.00%+0.71%-0.31%+1.01%+0.06%
14d5+60.00%-0.91%-0.77%-0.14%-4.04%
30d5+80.00%-7.74%-1.24%-6.51%-10.13%
60d5+100.00%-12.02%+3.00%-15.02%-12.25%
90d5+100.00%-15.74%+6.14%-21.88%-16.47%
180d5+100.00%-20.70%+12.20%-32.90%-34.69%
1y5+100.00%-24.54%+16.16%-40.70%-40.90%
2y5(4 pending)+100.00%-39.55%+33.84%-73.39%-73.39%
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
BMRN · 14,173 shares · as of May 20, 2025
04,7049,40714,11118,814202320242025SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 11 buys / 10 sellsCOVERAGE · 16 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GILD
GILEAD SCIENCES, INC.
PURCHASEGRANT
Stock grant
2,35511,245Mar 10, 2026Mar 12, 2026View →
GILD
GILEAD SCIENCES, INC.
PURCHASEGRANT
Stock grant
5,4555,455Mar 10, 2026Mar 12, 2026View →
GILD
GILEAD SCIENCES, INC.
PURCHASEGRANT
Stock grant
8,8908,890Sep 22, 2025Sep 23, 2025View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE10b5-1
10b5-1 plan
1,786$59.31$105.9K14,173May 20, 2025May 20, 2025View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE
GVP, Chief Accounting Officer
996$59.27$59.0K15,959May 19, 2025May 20, 2025View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE10b5-1
10b5-1 plan
1,295$71.52$92.6K16,955Mar 19, 2025Mar 20, 2025View →
BMRN
BIOMARIN PHARMACEUTICAL INC
PURCHASEGRANT
Stock grant
9,2309,230Mar 17, 2025Mar 18, 2025View →
BMRN
BIOMARIN PHARMACEUTICAL INC
PURCHASEGRANT
Stock grant
5,97018,252Mar 17, 2025Mar 18, 2025View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE
GVP, Chief Accounting Officer
823$69.44$57.1K12,282Mar 14, 2025Mar 18, 2025View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE10b5-1
10b5-1 plan
1,344$68.38$91.9K13,105Feb 24, 2025Feb 25, 2025View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE10b5-1
10b5-1 plan
714$90.00$64.3K14,449Aug 13, 2024Aug 15, 2024View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE
GVP, Chief Accounting Officer
993$76.97$76.4K15,163May 17, 2024May 20, 2024View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE10b5-1
10b5-1 plan
2,286$90.00$205.7K16,156Apr 10, 2024Apr 12, 2024View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE
GVP, Chief Accounting Officer
372$83.87$31.2K18,442Mar 18, 2024Mar 19, 2024View →
BMRN
BIOMARIN PHARMACEUTICAL INC
PURCHASEGRANT
Stock grant
7,0507,050Mar 15, 2024Mar 19, 2024View →
BMRN
BIOMARIN PHARMACEUTICAL INC
PURCHASEGRANT
Stock grant
4,72018,814Mar 15, 2024Mar 19, 2024View →
BMRN
BIOMARIN PHARMACEUTICAL INC
SALE
GVP, Chief Accounting Officer
796$92.02$73.2K14,094May 16, 2023May 18, 2023View →
BMRN
BIOMARIN PHARMACEUTICAL INC
PURCHASEGRANT
Stock grant
3,76014,890Mar 15, 2023Mar 17, 2023View →
BMRN
BIOMARIN PHARMACEUTICAL INC
PURCHASEGRANT
Stock grant
5,7205,720Mar 15, 2023Mar 17, 2023View →
BMRN
BIOMARIN PHARMACEUTICAL INC
PURCHASEGRANT
Stock grant
11,13011,130May 16, 2022May 18, 2022View →
BMRN
BIOMARIN PHARMACEUTICAL INC
PURCHASEGRANT
Stock grant
17,49017,490May 16, 2022May 18, 2022View →
Other insiders · BMRN
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About this filer
CIK 0001927648
ROLE
GVP, Chief Accounting Officer
PRIMARY
BMRN
COMPANIES
2
ACTIVE SINCE
May 2022
MARKETPEEL · /INSIDER/0001927648DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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