Horn Howard
Chief Financial Officer
Horn Howard has filed 12 SEC Form 4 filings (15 transaction rows) across 1 company, with disclosures dating back to 2025. 11 of those filings fall inside the rolling window. Most recent filing: Oct 19, 2026.
On the most recent filing, Horn Howard is listed as Chief Financial Officer at Ultragenyx Pharmaceutical Inc. Inside the rolling window, Horn Howard reported no open-market purchases and 11 open-market sales totaling $1.2M in RARE. The largest disclosed transaction in the window is a sale of 8,409 RARE shares on Mar 2, 2026, worth $191K.
Companies traded
Other insiders at RARE
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$1.2M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| RARE | Chief Financial Officer | Sale | 7,066 | $108K | Oct 19 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 4,696 | $117K | Aug 4 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 4,698 | $156K | Jul 6 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 4,653 | $111K | Jun 1 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 4,683 | $117K | May 4 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 4,683 | $98K | Apr 2 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 8,409 | $191K | Mar 3 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 1,635 | $37K | Mar 3 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 3,061 | $72K | Feb 3 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 3,150 | $72K | Jan 5 | SEC ↗ | |
| RARE | Chief Financial Officer | Sale | 3,081 | $112K | Dec 11 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Oct 13, 2025 | RARE | Sale | $250K |
Frequently asked questions
How many SEC Form 4 filings has Horn Howard made?
Horn Howard has filed 12 SEC Form 4 filings (15 transaction rows) across 1 company since 2025.
Which companies does Horn Howard trade?
Horn Howard has filed SEC Form 4 disclosures for 1 company, including RARE.
When was Horn Howard's most recent SEC Form 4 filing?
Horn Howard's most recent SEC Form 4 filing on Tracefour is dated Oct 19, 2026.
What is Horn Howard's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Horn Howard is listed as Chief Financial Officer.
What is Horn Howard's total buy and sell value in the current window?
Inside the rolling retention window, Horn Howard bought $0 and sold $1.2M based on SEC Form 4 filings.
What was Horn Howard's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 8,409 RARE shares on 2026-03-02, worth $191K, per SEC Form 4 filings.