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Stephen A. Skaggs

COHR
DIRECTOR · COHERENT CORP. · CIK 0001224172
FILING MIX · LIFETIME43%/57%
BUYS
10
SELLS
13
TOTAL VALUE
$2.67M
COMPANIES
2
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
78,279
AVG SELL PX
$95.12
TRADE KIND
SHOWING 23 / 23
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 16 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Stephen A. Skaggs, 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
7d10+70.00%-2.09%-0.22%-1.87%-0.83%
14d10+20.00%+8.64%-0.45%+7.76%+4.79%
30d10+25.00%+11.64%-1.63%+13.27%+15.32%
60d10+10.00%+33.16%+2.37%+30.79%+30.48%
90d10+0.00%+38.30%+3.93%+34.37%+31.49%
180d10(3 pending)+14.29%+95.59%+9.69%+85.89%+105.06%
1y10(6 pending)+25.00%+100.98%+26.95%+74.03%+83.87%
2y10(7 pending)+33.33%+45.42%+28.82%+16.60%+38.17%
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
COHR · 16,864 shares · as of Mar 9, 2026
06,52713,05419,58126,108202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
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
2026
FLOW · 10 buys / 13 sellsCOVERAGE · 27 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
OUST
OUSTER, INC.
SALE10b5-1
10b5-1 plan
3,614$45.18$163.3K61,415Aug 6, 2026Aug 7, 2026View →
OUST
OUSTER, INC.
SALE10b5-1
10b5-1 plan
1,386$46.48$64.4K65,029Aug 5, 2026Aug 7, 2026View →
OUST
OUSTER, INC.
PURCHASEGRANT
Stock grant
4,72566,415Jun 17, 2026Jun 22, 2026View →
OUST
OUSTER, INC.
SALE10b5-1
10b5-1 plan
5,000$30.00$150.0K61,690May 5, 2026May 7, 2026View →
OUST
OUSTER, INC.
SALE10b5-1
10b5-1 plan
5,000$28.00$140.0K66,690Apr 21, 2026Apr 22, 2026View →
COHR
COHERENT CORP.
SALE10b5-1
10b5-1 plan
3,523$243.13$856.6K16,864Mar 9, 2026Mar 11, 2026View →
COHR
COHERENT CORP.
PURCHASEGRANT
Stock grant
27920,387Feb 11, 2026Feb 12, 2026View →
COHR
COHERENT CORP.
SALE10b5-1
10b5-1 plan
2,000$150.00$300.0K20,108Nov 20, 2025Nov 21, 2025View →
COHR
COHERENT CORP.
SALE10b5-1
10b5-1 plan
2,000$140.00$280.0K22,108Oct 29, 2025Oct 31, 2025View →
COHR
COHERENT CORP.
SALE10b5-1
10b5-1 plan
2,000$130.00$260.0K24,108Oct 24, 2025Oct 28, 2025View →
COHR
COHERENT CORP.
PURCHASEGRANT
Stock grant
2,27226,108Aug 28, 2025Sep 2, 2025View →
COHR
COHERENT CORP.
SALE10b5-1
10b5-1 plan
2,000$122.23$244.5K23,836Aug 13, 2025Aug 14, 2025View →
OUST
OUSTER, INC.
PURCHASEGRANT
Stock grant
13,55871,690Jun 18, 2025Jun 20, 2025View →
OUST
OUSTER, INC.
PURCHASEGRANT
Stock grant
14,75958,132Nov 4, 2024Nov 6, 2024View →
OUST
OUSTER, INC.
PURCHASEGRANT
Stock grant
43,37343,373Nov 4, 2024Nov 6, 2024View →
COHR
COHERENT CORP.
PURCHASEGRANT
Stock grant
2,83125,836Aug 29, 2024Aug 30, 2024View →
COHR
COHERENT CORP.
PURCHASEGRANT
Stock grant
5,31523,005Aug 31, 2023Sep 5, 2023View →
COHR
COHERENT CORP.
SALE
14,5180Jul 1, 2022Jul 1, 2022View →
COHR
COHERENT CORP.
PURCHASEGRANT
Stock grant
85614,518May 6, 2021May 10, 2021View →
COHR
COHERENT CORP.
SALE
500$125.00$62.5K13,662Dec 3, 2020Dec 3, 2020View →
COHR
COHERENT CORP.
SALE
500$137.53$68.8K14,162May 11, 2020May 13, 2020View →
COHR
COHERENT CORP.
PURCHASEGRANT
Stock grant
2,14814,662Apr 27, 2020Apr 29, 2020View →
COHR
COHERENT CORP.
SALE
500$151.23$75.6K12,514Feb 18, 2020Feb 19, 2020View →
Other insiders · COHR
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About this filer
CIK 0001224172
ROLE
Director
PRIMARY
COHR
COMPANIES
2
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001224172DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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