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Paul Herzich

SLDB
CHIEF TECHNOLOGY OFFICER · SOLID BIOSCIENCES INC. · CIK 0001954991
FILING MIX · LIFETIME55%/45%
BUYS
17
SELLS
14
TOTAL VALUE
$308.5K
COMPANIES
1
ACTIVE SINCE
Dec 2022
HOLDINGS NOW
72,638
AVG SELL PX
$5.94
TRADE KIND
SHOWING 31 / 31
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
7 backtested trades · 8 horizons · 13 pending
Forward-return performance of every backtestable P/S trade by Paul Herzich, 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
7d7+28.57%+12.24%+0.22%+12.02%+6.90%—
14d7+42.86%+7.45%-0.36%+7.80%+3.88%—
30d7+28.57%+14.07%-2.27%+16.34%+5.54%—
60d7+28.57%+19.28%-1.08%+20.36%+22.21%—
90d7+28.57%+26.61%+3.30%+23.30%+1.85%—
180d7(3 pending)+25.00%+53.91%+7.06%+51.02%+59.67%—
1y7(4 pending)+0.00%+34.79%+20.05%+14.74%+16.56%—
2y7(6 pending)+0.00%+50.87%+52.74%-1.87%-1.87%—
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
SLDB · 72,638 shares · as of Feb 18, 2026
042,50085,000127,500170,0002023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 17 buys / 14 sellsCOVERAGE · 14 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SLDB
SOLID BIOSCIENCES INC.
SALE10b5-1
10b5-1 plan
3,616$5.82$21.1K72,638Feb 18, 2026Feb 18, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
7,187——14,376Feb 13, 2026Feb 18, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASE
Chief Technology Officer
7,187——76,254Feb 13, 2026Feb 18, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE10b5-1
10b5-1 plan
10,905$6.44$70.2K69,067Feb 4, 2026Feb 6, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE10b5-1
10b5-1 plan
26,250$6.44$169.0K79,972Feb 2, 2026Feb 2, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASE
Chief Technology Officer
24,675——106,222Jan 31, 2026Feb 2, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
24,675——74,025Jan 31, 2026Feb 2, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
170,000——170,000Jan 29, 2026Feb 2, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
85,000——85,000Jan 29, 2026Feb 2, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASE
Chief Technology Officer
54,925——81,547Jan 29, 2026Feb 2, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
54,925——0Jan 29, 2026Feb 2, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
54,925——54,925Jan 29, 2026Apr 21, 2026 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE10b5-1
10b5-1 plan
2,701$5.11$13.8K26,622Dec 3, 2025Dec 4, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
7,239——7,239Dec 2, 2025Dec 4, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASE
Chief Technology Officer
7,239——29,323Dec 2, 2025Dec 4, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
100,000——100,000Aug 14, 2025Aug 18, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
50,000——50,000Aug 14, 2025Aug 18, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE10b5-1
10b5-1 plan
2,688$3.96$10.6K18,388Feb 14, 2025Feb 18, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASE
Chief Technology Officer
7,187——21,076Feb 13, 2025Feb 18, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
7,187——21,563Feb 13, 2025Feb 18, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
98,700——98,700Jan 31, 2025Feb 11, 2025 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
2,777$5.60$15.6K12,182Dec 3, 2024Dec 4, 2024 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
7,239——14,478Dec 2, 2024Dec 4, 2024 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASE
Chief Technology Officer
7,239——14,959Dec 2, 2024Dec 4, 2024 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
28,750——28,750Feb 13, 2024Feb 16, 2024 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
57,500——57,500Feb 13, 2024Feb 16, 2024 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
2,968$2.77$8.2K4,270Dec 4, 2023Dec 5, 2023 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASE
Chief Technology Officer
7,238——7,238Dec 2, 2023Dec 5, 2023 ↗View →
SLDB
SOLID BIOSCIENCES INC.
SALE
Chief Technology Officer
7,238——21,717Dec 2, 2023Dec 5, 2023 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
28,955——28,955Dec 2, 2022Dec 5, 2022 ↗View →
SLDB
SOLID BIOSCIENCES INC.
PURCHASEGRANT
Stock grant
57,900——57,900Dec 2, 2022Dec 5, 2022 ↗View →
Other insiders · SLDB
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About this filer
CIK 0001954991
ROLE
Chief Technology Officer
PRIMARY
SLDB
COMPANIES
1
ACTIVE SINCE
Dec 2022
MARKETPEEL · /INSIDER/0001954991DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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