Insider txns (12m)
67
Stock / equity
RARE Ultragenyx Pharmaceutical Inc.
- Security
- Equity
- Size, estimated from filings
- Small cap ($300M – $2B)
- Insiders on record
- 15
- Members of Congress
- 1
- Latest trade on record
- October 15, 2026
RARE (Ultragenyx Pharmaceutical Inc.) has 67 disclosed insider transactions from 15 insiders in the last 12 months (0 open-market buys, 30 sales, about $3.8M at reported prices) and 3 congressional trades from 1 member of Congress. The most recent disclosure was filed October 19, 2026.
Open-market buys / sales
0 / 30
Congress trades (12m)
3
Distinct filers (12m)
16
Share price
Price and chart by TradingView for Ultragenyx Pharmaceutical Inc.. US share prices here are delayed, not real-time. The trade records on this page come from government filings, not from this chart.
RARE in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
8 people account for the disclosed buying and selling in RARE over the last 12 months; the most active is KAKKIS EMIL D with $1.2M.
Prices insiders traded at
What price did insiders buy and sell at? Each marker is one open-market trade at the share price reported on its Form 4.
▲ Bought▼ SoldAverage reported price that day
Insiders reported 29 open-market trades in RARE since Oct 13, 2025, at prices from $13.57 to $36.38; the most recent was a sale at $15.27 on Oct 15, 2026. These are the prices on the filings, not adjusted for stock splits, and not a market price series.
Insider holdings over time
Is an insider building or unwinding a position? Shares held directly after each filing.
Horn HowardHuizenga Theodore Alan
Horn Howard reported 89,229 shares held after the latest filing, against 98,227 at the first on record.
Lobbying spend by quarter
How much has Ultragenyx Pharmaceutical Inc. reported spending on federal lobbying?
Ultragenyx Pharmaceutical Inc. reported $2.0M in lobbying over the last eight quarters, from filings matched by exact company name.
Insiders trading RARE
Everyone who filed a Form 4 for this ticker, by number of rows on record. "Bought" and "sold" count open-market purchases (code P) and sales only; awards, option exercises and shares withheld for tax are in the row count but not in those two columns.
| Insider | Role | Rows | Bought | Sold | Value bought | Value sold | Latest |
|---|---|---|---|---|---|---|---|
| Horn Howard | Chief Financial Officer | 16 | 0 | 13 | — | $1.4M | October 15, 2026 |
| Parschauer Karah Herdman | EVP and Chief Legal Officer | 8 | 0 | 5 | — | $488K | August 3, 2026 |
| Huizenga Theodore Alan | SVP, Chief Accounting Officer | 7 | 0 | 5 | — | $63K | September 15, 2026 |
| Crombez Eric | EVP and Chief Medical Officer | 5 | 0 | 2 | — | $169K | May 5, 2026 |
| Harris Erik | EVP & Chief Commercial Officer | 4 | 0 | 1 | — | $240K | April 16, 2026 |
| Huang Dennis Karl | See Remarks | 4 | 0 | 1 | — | $23K | April 16, 2026 |
| KAKKIS EMIL D | President & CEO | 4 | 0 | 1 | — | $1.2M | April 16, 2026 |
| Pinion John Richard | See Remarks | 4 | 0 | 1 | — | $229K | April 16, 2026 |
| Sanders Corazon (Corsee) D. | Director | 3 | 0 | 1 | — | $50K | June 15, 2026 |
| SULIMAN SHEHNAAZ | Director | 3 | 0 | 1 | — | $144K | May 18, 2026 |
| Dunsire Deborah | Director | 2 | 0 | 0 | — | — | May 14, 2026 |
| Fust Matthew K | Director | 2 | 0 | 0 | — | — | May 14, 2026 |
| NARACHI MICHAEL | Director | 2 | 0 | 0 | — | — | May 14, 2026 |
| Ray Amrit | Director | 2 | 0 | 0 | — | — | May 14, 2026 |
| WELCH DANIEL G | Director | 2 | 0 | 0 | — | — | May 14, 2026 |
What kind of transactions these are 3 Form 4 codes
| Code | Meaning | Rows | Shares | Value at reported prices |
|---|---|---|---|---|
| A | Grant or award | 37 | 1,076,773 | — |
| S | Open-market sale | 29 | 172,463 | $4.1M |
| F | Shares withheld for tax | 2 | 1,147 | $27K |
What each code means: Form 4 transaction codes.
Members of Congress trading RARE
Members whose periodic transaction reports name this ticker. Amounts are the sums of the ranges as filed.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr. | Representative (CA, District 31), Democrat | 3 | 3 | 0 | $3,003–$45K | September 29, 2026 |
Insider transactions
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| Horn Howard | Sell S | October 15, 2026 | October 19, 2026 | 4d | 7,066 | $15 | $108K | Form 4 ↗ | ||
| Huizenga Theodore Alan | Sell S | September 15, 2026 | September 15, 2026 | 0d | 1,283 | $14 | $17K | 10b5-1 plan | Form 4 ↗ | |
| Huizenga Theodore Alan | Sell S | September 3, 2026 | September 8, 2026 | 5d | 161 | $14 | $2,252 | late | Form 4 ↗ | |
| Parschauer Karah Herdman | Sell S | August 3, 2026 | August 4, 2026 | 1d | 1,900 | $25 | $47K | 10b5-1 plan | Form 4 ↗ | |
| Horn Howard | Sell S | August 3, 2026 | August 4, 2026 | 1d | 4,696 | $25 | $117K | 10b5-1 plan | Form 4 ↗ | |
| Horn Howard | Sell S | July 1, 2026 | July 6, 2026 | 5d | 4,698 | $33 | $156K | late10b5-1 plan | Form 4 ↗ | |
| Sanders Corazon (Corsee) D. | Sell S | June 15, 2026 | June 15, 2026 | 0d | 2,000 | $25 | $50K | Form 4 ↗ | ||
| Parschauer Karah Herdman | Sell S | June 15, 2026 | June 15, 2026 | 0d | 1,899 | $25 | $47K | 10b5-1 plan | Form 4 ↗ | |
| Horn Howard | Sell S | June 1, 2026 | June 1, 2026 | 0d | 4,653 | $24 | $111K | 10b5-1 plan | Form 4 ↗ | |
| Fust Matthew K | Other A | May 14, 2026 | May 18, 2026 | 4d | 14,058 | — | — | derivative | Form 4 ↗ | |
| Fust Matthew K | Other A | May 14, 2026 | May 18, 2026 | 4d | 7,751 | — | — | Form 4 ↗ | ||
| SULIMAN SHEHNAAZ | Other A | May 14, 2026 | May 18, 2026 | 4d | 14,058 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| SULIMAN SHEHNAAZ | Sell S | May 18, 2026 | May 18, 2026 | 0d | 5,740 | $25 | $144K | 10b5-1 plan | Form 4 ↗ | |
| SULIMAN SHEHNAAZ | Other A | May 14, 2026 | May 18, 2026 | 4d | 7,751 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Ray Amrit | Other A | May 14, 2026 | May 18, 2026 | 4d | 14,058 | — | — | derivative | Form 4 ↗ | |
| Ray Amrit | Other A | May 14, 2026 | May 18, 2026 | 4d | 7,751 | — | — | Form 4 ↗ | ||
| Sanders Corazon (Corsee) D. | Other A | May 14, 2026 | May 18, 2026 | 4d | 14,058 | — | — | derivative | Form 4 ↗ | |
| Sanders Corazon (Corsee) D. | Other A | May 14, 2026 | May 18, 2026 | 4d | 7,751 | — | — | Form 4 ↗ | ||
| NARACHI MICHAEL | Other A | May 14, 2026 | May 18, 2026 | 4d | 14,058 | — | — | derivative | Form 4 ↗ | |
| NARACHI MICHAEL | Other A | May 14, 2026 | May 18, 2026 | 4d | 7,751 | — | — | Form 4 ↗ | ||
| WELCH DANIEL G | Other A | May 14, 2026 | May 18, 2026 | 4d | 14,058 | — | — | derivative | Form 4 ↗ | |
| WELCH DANIEL G | Other A | May 14, 2026 | May 18, 2026 | 4d | 7,751 | — | — | Form 4 ↗ | ||
| Dunsire Deborah | Other A | May 14, 2026 | May 18, 2026 | 4d | 14,058 | — | — | derivative | Form 4 ↗ | |
| Dunsire Deborah | Other A | May 14, 2026 | May 18, 2026 | 4d | 7,751 | — | — | Form 4 ↗ | ||
| Crombez Eric | Sell S | May 5, 2026 | May 6, 2026 | 1d | 344 | $25 | $8,586 | Form 4 ↗ | ||
| Horn Howard | Sell S | May 1, 2026 | May 4, 2026 | 3d | 4,683 | $25 | $117K | 10b5-1 plan | Form 4 ↗ | |
| Huizenga Theodore Alan | Other A | April 22, 2026 | April 24, 2026 | 2d | 7,348 | — | — | derivative | Form 4 ↗ | |
| Huizenga Theodore Alan | Other A | April 22, 2026 | April 24, 2026 | 2d | 20,241 | — | — | Form 4 ↗ | ||
| KAKKIS EMIL D | Other A | April 16, 2026 | April 20, 2026 | 4d | 132,693 | — | — | derivative | Form 4 ↗ | |
| KAKKIS EMIL D | Other A | April 16, 2026 | April 20, 2026 | 4d | 76,745 | — | — | Form 4 ↗ | ||
| Huang Dennis Karl | Other A | April 16, 2026 | April 20, 2026 | 4d | 79,936 | — | — | derivative | Form 4 ↗ | |
| Huang Dennis Karl | Other A | April 16, 2026 | April 20, 2026 | 4d | 23,116 | — | — | Form 4 ↗ | ||
| Pinion John Richard | Other A | April 16, 2026 | April 20, 2026 | 4d | 79,936 | — | — | derivative | Form 4 ↗ | |
| Pinion John Richard | Other A | April 16, 2026 | April 20, 2026 | 4d | 23,116 | — | — | Form 4 ↗ | ||
| Parschauer Karah Herdman | Other A | April 16, 2026 | April 20, 2026 | 4d | 49,960 | — | — | derivative | Form 4 ↗ | |
| Parschauer Karah Herdman | Other A | April 16, 2026 | April 20, 2026 | 4d | 28,895 | — | — | Form 4 ↗ | ||
| Harris Erik | Other A | April 16, 2026 | April 20, 2026 | 4d | 49,960 | — | — | derivative | Form 4 ↗ | |
| Harris Erik | Other A | April 16, 2026 | April 20, 2026 | 4d | 28,895 | — | — | Form 4 ↗ | ||
| Crombez Eric | Other A | April 16, 2026 | April 20, 2026 | 4d | 59,952 | — | — | derivative | Form 4 ↗ | |
| Crombez Eric | Other A | April 16, 2026 | April 20, 2026 | 4d | 34,674 | — | — | Form 4 ↗ | ||
| Horn Howard | Other A | April 16, 2026 | April 20, 2026 | 4d | 59,952 | — | — | derivative | Form 4 ↗ | |
| Horn Howard | Other A | April 16, 2026 | April 20, 2026 | 4d | 34,674 | — | — | Form 4 ↗ | ||
| Horn Howard | Sell S | April 1, 2026 | April 2, 2026 | 1d | 4,683 | $21 | $98K | 10b5-1 plan | Form 4 ↗ | |
| Parschauer Karah Herdman | Sell S | March 10, 2026 | March 10, 2026 | 0d | 3,508 | $23 | $80K | Form 4 ↗ | ||
| Parschauer Karah Herdman | Sell S | March 6, 2026 | March 10, 2026 | 4d | 6,018 | $21 | $129K | Form 4 ↗ | ||
| Pinion John Richard | Sell S | March 2, 2026 | March 3, 2026 | 1d | 10,029 | $23 | $229K | Form 4 ↗ | ||
| Pinion John Richard | Other A | March 1, 2026 | March 3, 2026 | 2d | 11,137 | — | — | Form 4 ↗ | ||
| Harris Erik | Sell S | March 2, 2026 | March 3, 2026 | 1d | 10,539 | $23 | $240K | Form 4 ↗ | ||
| Harris Erik | Other A | March 1, 2026 | March 3, 2026 | 2d | 11,643 | — | — | Form 4 ↗ | ||
| KAKKIS EMIL D | Sell S | March 2, 2026 | March 3, 2026 | 1d | 54,404 | $23 | $1.2M | Form 4 ↗ | ||
| KAKKIS EMIL D | Other A | March 1, 2026 | March 3, 2026 | 2d | 71,177 | — | — | Form 4 ↗ | ||
| Parschauer Karah Herdman | Sell S | March 2, 2026 | March 3, 2026 | 1d | 8,135 | $23 | $185K | Form 4 ↗ | ||
| Parschauer Karah Herdman | Other A | March 1, 2026 | March 3, 2026 | 2d | 11,137 | — | — | Form 4 ↗ | ||
| Huizenga Theodore Alan | Sell S | March 2, 2026 | March 3, 2026 | 1d | 1,632 | $23 | $37K | Form 4 ↗ | ||
| Huizenga Theodore Alan | Sell F | March 2, 2026 | March 3, 2026 | 1d | 148 | $23 | $3,462 | Form 4 ↗ | ||
| Horn Howard | Sell S | March 3, 2026 | March 3, 2026 | 0d | 1,635 | $22 | $37K | 10b5-1 plan | Form 4 ↗ | |
| Horn Howard | Sell S | March 2, 2026 | March 3, 2026 | 1d | 3,119 | $23 | $70K | 10b5-1 plan | Form 4 ↗ | |
| Horn Howard | Sell S | March 2, 2026 | March 3, 2026 | 1d | 5,290 | $23 | $121K | 10b5-1 plan | Form 4 ↗ | |
| Horn Howard | Other A | March 1, 2026 | March 3, 2026 | 2d | 6,143 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Crombez Eric | Sell S | March 2, 2026 | March 3, 2026 | 1d | 7,029 | $23 | $160K | Form 4 ↗ | ||
| Crombez Eric | Other A | March 1, 2026 | March 3, 2026 | 2d | 11,643 | — | — | Form 4 ↗ | ||
| Huang Dennis Karl | Sell F | March 2, 2026 | March 3, 2026 | 1d | 999 | $23 | $23K | Form 4 ↗ | ||
| Huang Dennis Karl | Other A | March 1, 2026 | March 3, 2026 | 2d | 11,137 | — | — | Form 4 ↗ | ||
| Horn Howard | Sell S | February 2, 2026 | February 3, 2026 | 1d | 3,061 | $24 | $72K | 10b5-1 plan | Form 4 ↗ | |
| Horn Howard | Sell S | January 2, 2026 | January 5, 2026 | 3d | 3,150 | $23 | $72K | 10b5-1 plan | Form 4 ↗ | |
| Huizenga Theodore Alan | Sell S | December 29, 2025 | December 30, 2025 | 1d | 85 | $34 | $2,922 | Form 4 ↗ | ||
| Horn Howard | Sell S | December 10, 2025 | December 11, 2025 | 1d | 3,081 | $36 | $112K | 10b5-1 plan | Form 4 ↗ | |
| Horn Howard | Sell S | October 13, 2025 | October 14, 2025 | 1d | 7,942 | $32 | $250K | Form 4 ↗ |
Congressional trades
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr. | Buy | September 29, 2026 | October 12, 2026 | 13d | — | — | $1,001–$15K | House PTR ↗ | ||
| Gilbert Ray Cisneros, Jr. | Buy | March 3, 2026 | April 7, 2026 | 35d | — | — | $1,001–$15K | House PTR ↗ | ||
| Gilbert Ray Cisneros, Jr. | Buy | February 18, 2026 | March 9, 2026 | 19d | — | — | $1,001–$15K | House PTR ↗ |
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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.
- How to read a congressional trade report Owner tells you whose asset it was: the member, the spouse, a dependent child, or held jointly.
- Why congressional trade amounts are ranges There are ten ranges; the lowest is $1,001–$15,000 and the highest is over $50,000,000.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| House Clerk, periodic transaction reports | 3 | 3 | March 9, 2026 | October 12, 2026 | House Clerk search |
| SEC EDGAR, Form 4 | 41 | 68 | October 14, 2025 | October 19, 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.
Insider rows are Form 4 filings for this issuer from SEC EDGAR; congressional rows are periodic transaction reports parsed from the House Clerk and the Senate eFD. Values use the reported price for Form 4 and the disclosed range for Congress. See methodology and corrections.
Not investment advice. Disclosures are shown as filed and may lag the trade or be amended. No recommendation is made or implied.