Erik Harris - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Erik Harris is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $240K.
Profile
Erik Harris is a corporate insider at Ultragenyx Pharmaceutical Inc. (RARE). Harris's filing history also covers Rezolute, Inc. (RZLT) and Inozyme Pharma, Inc. (INZY). Harris has reported 4 insider filings with the SEC since 2024. The most recent filing was in April 2026.
| Role | EVP & Chief Commercial Officer |
|---|---|
| Notability | 20/100 |
Board memberships
- Ultragenyx Pharmaceutical Inc.
- Rezolute, Inc.
- Inozyme Pharma, Inc.
Trading Pattern
InsiderAlpha's records for Erik Harris go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Erik Harris has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- EVP & Chief Commercial Officer at Ultragenyx Pharmaceutical Inc. (RARE) - 2 filings, 2026
- Insider at Rezolute, Inc. (RZLT) - 1 filing, 2025
- Insider at Inozyme Pharma, Inc. (INZY) - 1 filing, 2024
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-20 | RARE | Ultragenyx Pharmaceutical Inc. | A - Grant or award | 28.9K | $0.00 | |
| 2026-03-04 | RARE | Ultragenyx Pharmaceutical Inc. | S - Open-market sale | 10.5K | $22.80 | $240K |
| 2026-03-04 | RARE | Ultragenyx Pharmaceutical Inc. | A - Grant or award | 11.6K | $0.00 | |
| 2025-11-21 | RZLT | Rezolute, Inc. | A - Grant or award | 21.0K | $0.00 |
Most Active Insiders Right Now
Erik Harris has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Fairmount Funds Management LLC
- Scott Farquhar
- Tilman J. Fertitta
- James E. Flynn
- Framework Ventures IV L.P.
- Angeliki Frangou
- Spencer Frazier
- Paul J. Fribourg
Frequently Asked Questions
Who is Erik Harris?
Erik Harris is a corporate insider at Ultragenyx Pharmaceutical Inc. (RARE). Harris's filing history also covers Rezolute, Inc. (RZLT) and Inozyme Pharma, Inc. (INZY). Harris has reported 4 insider filings with the SEC since 2024. The most recent filing was in April 2026.…
Has Erik Harris been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($240K) across all tracked filings.
Where can I see all of Erik Harris's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Erik Harris profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.