Transactions
17
Insider / VAIL RESORTS INC
Rock William
President, Mountain Division at VAIL RESORTS INC
- Company
- VAIL RESORTS INC
- Ticker
- MTN
- First filing on record
- October 1, 2025
- Latest trade on record
- September 30, 2026
- SEC filings
- EDGAR ↗
Rock William, President, Mountain Division at VAIL RESORTS INC, has disclosed 17 transactions in MTN since October 1, 2025: 0 purchases (0 open-market buys) and 5 sales, worth about $192K at the reported prices. The latest was filed October 1, 2026, 1 day after the trade.
Open-market buys
0
Sales
5
Avg. disclosure lag
1.7d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Rock William made no purchases and 3 sales worth $137K, plus 6 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Rock William has traded 1 stock on record; the largest by dollars is MTN.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 3 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| M | Option exercise or conversion | 10 | 9,438 | — |
| F | Shares withheld for tax | 5 | 1,365 | $192K |
| A | Grant or award | 2 | 21,654 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 9 | 0 | 3 · $137K |
| 2025 | 8 | 0 | 2 · $55K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| MTN | Option / conversion M | September 30, 2026 | October 1, 2026 | 1d | 1,449 | — | — | derivative | Form 4 ↗ | |
| MTN | Option / conversion M | September 29, 2026 | October 1, 2026 | 2d | 839 | — | — | derivative | Form 4 ↗ | |
| MTN | Sell F | September 30, 2026 | October 1, 2026 | 1d | 417 | $137 | $57K | Form 4 ↗ | ||
| MTN | Option / conversion M | September 30, 2026 | October 1, 2026 | 1d | 1,449 | — | — | Form 4 ↗ | ||
| MTN | Sell F | September 29, 2026 | October 1, 2026 | 2d | 243 | $141 | $34K | Form 4 ↗ | ||
| MTN | Option / conversion M | September 29, 2026 | October 1, 2026 | 2d | 839 | — | — | Form 4 ↗ | ||
| MTN | Option / conversion M | September 27, 2026 | September 29, 2026 | 2d | 1,144 | — | — | derivative | Form 4 ↗ | |
| MTN | Sell F | September 27, 2026 | September 29, 2026 | 2d | 334 | $136 | $45K | Form 4 ↗ | ||
| MTN | Option / conversion M | September 27, 2026 | September 29, 2026 | 2d | 1,144 | — | — | Form 4 ↗ | ||
| MTN | Other A | September 30, 2025 | October 1, 2025 | 1d | 17,305 | — | — | derivative | Form 4 ↗ | |
| MTN | Other A | September 30, 2025 | October 1, 2025 | 1d | 4,349 | — | — | derivative | Form 4 ↗ | |
| MTN | Option / conversion M | September 29, 2025 | October 1, 2025 | 2d | 839 | — | — | derivative | Form 4 ↗ | |
| MTN | Option / conversion M | September 29, 2025 | October 1, 2025 | 2d | 448 | — | — | derivative | Form 4 ↗ | |
| MTN | Sell F | September 29, 2025 | October 1, 2025 | 2d | 242 | $148 | $36K | Form 4 ↗ | ||
| MTN | Option / conversion M | September 29, 2025 | October 1, 2025 | 2d | 839 | — | — | Form 4 ↗ | ||
| MTN | Sell F | September 29, 2025 | October 1, 2025 | 2d | 129 | $148 | $19K | Form 4 ↗ | ||
| MTN | Option / conversion M | September 29, 2025 | October 1, 2025 | 2d | 448 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| October 1, 2026 | Form 4 | 0000812011-26-000095 | 6 | published | EDGAR ↗ |
| September 29, 2026 | Form 4 | 0000812011-26-000059 | 3 | published | EDGAR ↗ |
| October 1, 2025 | Form 4 | 0000812011-25-000193 | 8 | published | EDGAR ↗ |
Other insiders at VAIL RESORTS INC
- DeCecco Julie A. GC & Chief Public Affairs Ofc 25 rows
- Korch Angela A EVP & Chief Financial Officer 24 rows
- KATZ ROBERT A CEO & Chairperson of the Board 23 rows
- Gronberg Nathan Mark VP, Controller & CAO 19 rows
- Kunkel Lynanne Chief HR & Trnsfrm Ofc 19 rows
- HORNBUCKLE WILLIAM Director 18 rows
- Sullivan Gregory Jon EVP, Retail & Hospitality 17 rows
- BURGOYNE CELESTE Pres Americas & Global Guest 6 rows
- DECKER SUSAN L Director 6 rows
- Knobloch Iris Director 5 rows
Everyone on file, with contracts and lobbying under the company's name: VAIL RESORTS INC.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 3 | 17 | October 1, 2025 | October 1, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.