Snyder Mark S — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Snyder Mark S has filed 1 SEC Form 4 filing across 1 company in the last 90 days — buying. Lifetime open-market purchases: $2K. Historical track record: 1/5 stars across 4 tracked purchases.

Profile

Snyder Mark S
RoleVP- Engineering
Notability30/100

Board memberships

Track Record

InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.

InsiderAlpha rating★☆☆☆☆ (1/5)
Total purchases tracked4
Purchases with forward-return data4
30-day win rate0%
90-day win rate0%
Avg 5-day return-50.13%
Avg 30-day return-382.62%
Avg 90-day return-1081.25%
Best 30-day return-61.09%

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-05-06YORWYORK WATER COA — Grant or award306$0.00
2026-04-17YORWYORK WATER COP — Open-market purchase10$29.13$300
2026-01-16YORWYORK WATER COP — Open-market purchase11$30.45$350
2025-07-16YORWYORK WATER COP — Open-market purchase11$29.89$325
2025-05-05YORWYORK WATER COA — Grant or award365$0.00
2025-04-16YORWYORK WATER COP — Open-market purchase10$33.11$325
2024-10-17YORWYORK WATER COP — Open-market purchase9$35.46$325

Companies — Last 90 Days

Frequently Asked Questions

Who is Snyder Mark S?

Snyder Mark S is a corporate insider — currently tracked as VP- Engineering of YORK WATER CO (YORW). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has Snyder Mark S submitted recently?

1 primary Form 4 filings in the last 90 days, covering 1 company.

Has Snyder Mark S been buying or selling stock?

Recorded transactions: 5 open-market purchases ($2K) and 0 open-market sales () across all tracked filings.

How accurate is Snyder Mark S's historical track record?

Across 4 tracked purchases, Snyder Mark S averaged -382.6% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.

Where can I see all of Snyder Mark S's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

Open the live Snyder Mark S profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.