MarketPeel
Insider Trading Intelligence
DH

David Hallal

SRRK
CHIEF EXECUTIVE OFFICER · SCHOLAR ROCK HOLDING CORP · CIK 0001457477
FILING MIX · LIFETIME88%/12%
BUYS
21
SELLS
3
TOTAL VALUE
$3.97M
COMPANIES
3
ACTIVE SINCE
Jun 2020
HOLDINGS NOW
2,003,162
AVG SELL PX
$45.09
TRADE KIND
SHOWING 24 / 24
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 7 pending
Forward-return performance of every backtestable P/S trade by David Hallal, 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
7d2+50.00%-1.39%-0.68%-0.71%-0.71%
14d2+50.00%-3.12%+1.33%-4.45%-4.45%
30d2+0.00%+3.50%+2.00%+1.50%+1.50%
60d2+100.00%-9.99%+0.59%-10.58%-10.58%
90d2(1 pending)+0.00%+13.19%-1.11%+14.29%+14.29%
180d2(2 pending)
1y2(2 pending)
2y2(2 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
SRRK · 1,639,034 shares · as of Apr 16, 2026
0451,024902,0481,353,0711,804,095202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
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 · 21 buys / 3 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
KLRS
KALARIS THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
9,0009,000Jun 3, 2026Jun 4, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE
Chief Executive Officer
30,615$49.57$1.52M1,639,034Apr 16, 2026Apr 20, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
128,0041,669,649Feb 9, 2026Feb 11, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE
Chief Executive Officer
57,450$42.70$2.45M1,541,645Jan 13, 2026Jan 15, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALEGRANT
Gift
205,0001,599,095Oct 8, 2025Oct 9, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
275,167275,167May 2, 2025May 6, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
250,000554,095Apr 27, 2025Apr 29, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
1,250,0001,804,095Apr 27, 2025Apr 29, 2025View →
KLRS
KALARIS THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
18,00018,000Apr 10, 2025Apr 11, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
18,00018,000Jun 27, 2024Jul 1, 2024View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
13,500304,095Jun 27, 2024Jul 1, 2024View →
SEER
SEER, INC.
PURCHASEGRANT
Stock grant
58,178355,128Jun 12, 2024Jun 14, 2024View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
36,00036,000Jun 21, 2023Jun 22, 2023View →
SEER
SEER, INC.
PURCHASEGRANT
Stock grant
23,443296,950Jun 14, 2023Jun 16, 2023View →
SEER
SEER, INC.
PURCHASEGRANT
Stock grant
34,73534,735Jun 14, 2023Jun 16, 2023View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
14,00014,000Jun 16, 2022Jun 21, 2022View →
SEER
SEER, INC.
PURCHASEGRANT
Stock grant
29,64029,640Jun 15, 2022Jun 17, 2022View →
SEER
SEER, INC.
PURCHASEGRANT
Stock grant
9,945273,507Jun 15, 2022Jun 17, 2022View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
28,00028,000May 26, 2022May 27, 2022View →
SEER
SEER, INC.
PURCHASEGRANT
Stock grant
15,00015,000Jun 17, 2021Jun 21, 2021View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
7,8007,800May 27, 2021Jun 1, 2021View →
SEER
SEER, INC.
PURCHASEGRANT
Stock grant
18,69118,691Dec 3, 2020Dec 11, 2020View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
13,00013,000Jun 16, 2020Jun 18, 2020View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
7,0007,000Jun 16, 2020Jun 18, 2020View →
Other insiders · SRRK
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About this filer
CIK 0001457477
ROLE
Chief Executive Officer
PRIMARY
SRRK
COMPANIES
3
ACTIVE SINCE
Jun 2020
MARKETPEEL · /INSIDER/0001457477DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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