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Insider Trading Intelligence
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YL

Yang Li

SRZN
EXEC. VICE PRESIDENT, RESEARCH · SURROZEN, INC./DE · CIK 0001990537
FILING MIX · LIFETIME73%/27%
BUYS
16
SELLS
6
TOTAL VALUE
$134.0K
COMPANIES
1
ACTIVE SINCE
Dec 2023
HOLDINGS NOW
18,882
AVG SELL PX
$25.29
TRADE KIND
SHOWING 22 / 22
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 7 pending
Forward-return performance of every backtestable P/S trade by Yang Li, 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
7d3+100.00%-16.32%+0.70%-17.02%-11.66%—
14d3+100.00%-15.76%+0.95%-16.71%-15.76%—
30d3+66.67%-10.12%+0.38%-6.42%-6.42%—
60d3+66.67%-4.37%-0.35%-4.02%-22.81%—
90d3(1 pending)+50.00%+6.22%-6.62%+12.84%+12.84%—
180d3(1 pending)+50.00%-9.09%+6.71%-15.80%-15.80%—
1y3(2 pending)+0.00%+26.62%+15.76%+10.86%+10.86%—
2y3(3 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
SRZN · 18,882 shares · as of Jun 15, 2026
025,23850,47575,713100,950202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 16 buys / 6 sellsCOVERAGE · 11 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
1,666$8.11$13.5K18,882Jun 15, 2026Jun 16, 2026 ↗View →
SRZN
SURROZEN, INC./DE
SALE
Exec. Vice President, Research
1,584$33.33$52.8K17,216May 4, 2026May 5, 2026 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASE
Exec. Vice President, Research
4,375——18,800May 1, 2026May 5, 2026 ↗View →
SRZN
SURROZEN, INC./DE
SALE
Exec. Vice President, Research
4,375——4,375May 1, 2026May 5, 2026 ↗View →
SRZN
SURROZEN, INC./DE
SALEGRANT
Gift
1,666——14,425Mar 31, 2026Apr 1, 2026 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
100,950——100,950Feb 17, 2026Feb 18, 2026 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
100,950——100,950Feb 17, 2026Feb 18, 2026 ↗View →
SRZN
SURROZEN, INC./DE
SALE
Exec. Vice President, Research
1,118$19.87$22.2K16,091Jan 5, 2026Jan 6, 2026 ↗View →
SRZN
SURROZEN, INC./DE
SALE
Exec. Vice President, Research
2,500——0Jan 2, 2026Jan 6, 2026 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASE
Exec. Vice President, Research
2,500——17,209Jan 2, 2026Jan 6, 2026 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
1,666$8.11$13.5K14,709Dec 15, 2025Dec 16, 2025 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
400$8.06$3.2K13,043Jun 13, 2025Jun 16, 2025 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
26,250——26,250May 1, 2025May 5, 2025 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
8,750——8,750May 1, 2025May 5, 2025 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
35,000——35,000Jan 17, 2025Jan 22, 2025 ↗View →
SRZN
SURROZEN, INC./DE
SALE
Exec. Vice President, Research
843$17.37$14.6K13,345Jan 3, 2025Jan 6, 2025 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASE
Exec. Vice President, Research
2,500——14,188Jan 2, 2025Jan 6, 2025 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
400$5.67$2.3K10,888Jun 14, 2024Jun 18, 2024 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
20,000——20,000May 1, 2024May 2, 2024 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
10,000——10,000Apr 24, 2024Apr 26, 2024 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
5,000——5,000Apr 24, 2024Apr 26, 2024 ↗View →
SRZN
SURROZEN, INC./DE
PURCHASEGRANT
Stock grant
2,085$5.67$11.8K2,085Dec 15, 2023Dec 18, 2023 ↗View →
Other insiders · SRZN
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About this filer
CIK 0001990537
ROLE
Exec. Vice President, Research
PRIMARY
SRZN
COMPANIES
1
ACTIVE SINCE
Dec 2023
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