Mark S Snyder
CIK 1463117 · VP- Engineering · last filed 2026-10-19
Mark S Snyder is a VP- Engineering who has filed 83 SEC Form 4 insider transactions across 1 company since 2009. The most recent filing shows the insider was granted $350 of YORW on Oct 19, 2026. Across all open-market trades the lifetime net is +$47.6K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $156.5K across reported positions. 84 SEC filings were submitted jointly with YORK WATER CO.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
YORW price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
YORK, PA 17401-1219
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| YORW | VP- Engineering | 4,980 | $31.42 | $156.5K | $47.6K | 83 | 2026-10-19 |
Recent Filings
83 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-10-19 | YORW | Grant (A) | +12 | $350 | EDGAR |
| 2026-07-17 | YORW | Buy (P) | +11 | $325 | EDGAR |
| 2026-05-06 | YORW | Grant (A) | +306 | $0 | EDGAR |
| 2026-04-17 | YORW | Buy (P) | +10 | $300 | EDGAR |
| 2026-01-16 | YORW | Buy (P) | +11 | $350 | EDGAR |
| 2025-10-20 | YORW | Buy (P) | +11 | $325 | EDGAR |
| 2025-07-17 | YORW | Buy (P) | +10 | $325 | EDGAR |
| 2025-05-07 | YORW | Grant (A) | +365 | $0 | EDGAR |
| 2025-04-16 | YORW | Buy (P) | +9 | $325 | EDGAR |
| 2025-01-16 | YORW | Buy (P) | +10 | $325 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.