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Insider Trading Intelligence
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Lauren Merendino

DAWN
CHIEF COMMERCIAL OFFICER · DAY ONE BIOPHARMACEUTICALS, INC. · CIK 0001855298
FILING MIX · LIFETIME39%/61%
BUYS
17
SELLS
27
TOTAL VALUE
$150.7K
COMPANIES
1
ACTIVE SINCE
May 2025
HOLDINGS NOW
0
AVG SELL PX
$8.75
TRADE KIND
SHOWING 44 / 44
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 8 pending
Forward-return performance of every backtestable P/S trade by Lauren Merendino, 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+0.00%+1.09%-0.39%+1.47%+1.52%—
14d4+50.00%-1.40%+0.14%-1.53%+0.01%—
30d4+25.00%+22.01%+0.34%+21.66%+2.49%—
60d4+0.00%+26.63%+3.97%+22.66%+6.74%—
90d4+0.00%+19.40%+5.79%+14.59%+25.98%—
180d4(1 pending)+0.00%+66.05%+10.83%+55.56%+55.56%—
1y4(3 pending)——+24.93%———
2y4(4 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
DAWN · 0 shares · as of Apr 23, 2026
082,550165,100247,650330,2002026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2025
2025
2025
2026
2026
FLOW · 17 buys / 27 sellsCOVERAGE · 5 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
25,816——0Apr 23, 2026Apr 23, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
110,000——0Apr 23, 2026Apr 23, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
40,565——0Apr 23, 2026Apr 23, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
60,157——0Apr 23, 2026Apr 23, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
330,200——0Apr 23, 2026Apr 23, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
90,000——0Apr 23, 2026Apr 23, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
18,978——0Apr 23, 2026Apr 23, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
69,375——0Apr 23, 2026Apr 23, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
5,814$11.60$67.4K60,157Feb 17, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,688——57,659Feb 15, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,688——25,816Feb 15, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,687——40,565Feb 15, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,687——61,346Feb 15, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
4,625——69,375Feb 15, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,162——53,971Feb 15, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,162——18,978Feb 15, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
4,625——65,971Feb 15, 2026Feb 18, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
110,000——110,000Jan 30, 2026Jan 30, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
74,000——74,000Jan 30, 2026Jan 30, 2026 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,726$8.91$33.2K50,809Nov 17, 2025Nov 18, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,162——22,140Nov 15, 2025Nov 18, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,162——47,161Nov 15, 2025Nov 18, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,687——50,848Nov 15, 2025Nov 18, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,687——29,504Nov 15, 2025Nov 18, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,687——54,535Nov 15, 2025Nov 18, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,687——44,252Nov 15, 2025Nov 18, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
330,200——330,200Nov 6, 2025Nov 7, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
330,200——0Nov 6, 2025Nov 7, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
90,000——0Nov 6, 2025Nov 7, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
90,000——90,000Nov 6, 2025Nov 7, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,766$6.77$25.5K41,931Aug 18, 2025Aug 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,687——47,939Aug 15, 2025Aug 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,162——25,302Aug 15, 2025Aug 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,162——38,323Aug 15, 2025Aug 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,687——33,191Aug 15, 2025Aug 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,687——42,010Aug 15, 2025Aug 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,687——45,697Aug 15, 2025Aug 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,927$6.26$24.6K35,161May 16, 2025May 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,687——35,401May 15, 2025May 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,687——36,878May 15, 2025May 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,687——51,626May 15, 2025May 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,687——39,088May 15, 2025May 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
SALE
Chief Commercial Officer
3,162——28,464May 15, 2025May 19, 2025 ↗View →
DAWN
DAY ONE BIOPHARMACEUTICALS, INC.
PURCHASE
Chief Commercial Officer
3,162——31,714May 15, 2025May 19, 2025 ↗View →
Other insiders · DAWN
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About this filer
CIK 0001855298
ROLE
Chief Commercial Officer
PRIMARY
DAWN
COMPANIES
1
ACTIVE SINCE
May 2025
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