Matthew S Mazza
CIK 1915860 · Chief Trust Officer · last filed 2025-09-15
Matthew S Mazza is a Chief Trust Officer who has filed 33 SEC Form 4 insider transactions across 1 company since 2022. The most recent filing, for APPF, was dated Sep 15, 2025. Across all open-market trades the lifetime net is −$6.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.4M across reported positions. 34 SEC filings were submitted jointly with APPFOLIO INC.
"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.
APPF 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
SANTA BARBARA, CA 93117
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| APPF | Chief Trust Officer | 25,015 | $217.20 | $5.43M | -$6.86M | 26 | 2025-09-15 |
Recent Filings
33 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-09-15 | APPF | Notice (144) | −1,636 | -$453.1K | EDGAR |
| 2025-09-15 | APPF | Sell (S) | −3,000 | -$836.1K | EDGAR |
| 2025-09-11 | APPF | Notice (144) | −1,364 | -$383.0K | EDGAR |
| 2025-08-12 | APPF | Tax (F) | −1,071 | -$303.5K | EDGAR |
| 2025-05-13 | APPF | Tax (F) | −1,240 | -$265.7K | EDGAR |
| 2025-02-12 | APPF | Mixed | +4,762 | -$449.7K | EDGAR |
| 2025-01-30 | APPF | Grant (A) | +2,863 | $0 | EDGAR |
| 2025-01-27 | APPF | Sell (S) | −838 | -$213.9K | EDGAR |
| 2024-12-12 | APPF | Sell (S) | −4,727 | -$1.21M | EDGAR |
| 2024-11-15 | APPF | Sell (S) | −5,090 | -$1.20M | 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.