Ultragenyx Pharmaceutical Inc. (RARE) Insider Trading

Over the last 3 months, RARE insiders made 0 open-market buys and 7 sales, a net sale of -$686K (SEC Form 4). Over the last 6 months, 272 institutions increased and 172 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
7
Net (3m)
-$686.5K
Insider trades by month Buys Sells
Jan
Feb
Mar
Apr
May
Jun
Context3-month price +2.8%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Jun 1, 2026Horn Howardofficer: Chief Financial OfficerSell4,653$23.77
May 18, 2026Dunsire DeborahdirectorGrant7,751—
May 18, 2026Fust Matthew KdirectorGrant7,751—
May 18, 2026Ray AmritdirectorGrant7,751—
May 18, 2026Sanders Corazon (Corsee) D.directorGrant7,751—
May 18, 2026SULIMAN SHEHNAAZdirectorGrant7,751—
May 18, 2026SULIMAN SHEHNAAZdirectorGrant14,058$25.80
May 18, 2026NARACHI MICHAELdirectorGrant14,058$25.80
May 18, 2026WELCH DANIEL GdirectorGrant14,058$25.80
May 18, 2026Sanders Corazon (Corsee) D.directorGrant14,058$25.80
May 18, 2026NARACHI MICHAELdirectorGrant7,751—
May 18, 2026Fust Matthew KdirectorGrant14,058$25.80
May 18, 2026Ray AmritdirectorGrant14,058$25.80
May 18, 2026WELCH DANIEL GdirectorGrant7,751—
May 18, 2026Dunsire DeborahdirectorGrant14,058$25.80
May 18, 2026SULIMAN SHEHNAAZdirectorSell5,740$25.12
May 6, 2026Crombez Ericofficer: EVP and Chief Medical OfficerSell344$24.96
May 4, 2026Horn Howardofficer: Chief Financial OfficerSell4,683$24.90
Apr 24, 2026Huizenga Theodore Alanofficer: SVP, Chief Accounting OfficerGrant7,348$24.61
Apr 24, 2026Huizenga Theodore Alanofficer: SVP, Chief Accounting OfficerGrant20,241—
Apr 20, 2026KAKKIS EMIL Ddirector, officer: President & CEOGrant132,693$24.52
Apr 20, 2026Huang Dennis Karlofficer: See RemarksGrant23,116—
Apr 20, 2026Horn Howardofficer: Chief Financial OfficerGrant59,952$24.52
Apr 20, 2026Harris Erikofficer: EVP & Chief Commercial OfficerGrant28,895—
Apr 20, 2026Harris Erikofficer: EVP & Chief Commercial OfficerGrant49,960$24.52
Apr 20, 2026Pinion John Richardofficer: See RemarksGrant23,116—
Apr 20, 2026Crombez Ericofficer: EVP and Chief Medical OfficerGrant34,674—
Apr 20, 2026Pinion John Richardofficer: See RemarksGrant79,936$24.52
Apr 20, 2026Parschauer Karah Herdmanofficer: EVP and Chief Legal OfficerGrant49,960$24.52
Apr 20, 2026KAKKIS EMIL Ddirector, officer: President & CEOGrant76,745—

Source: RARE SEC Form 4 filings, latest Jun 1, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their RARE positions over the last 6 months (SEC Form 13F).

Increased
272
New positions
101
Reduced
172
Sold out
114
Largest moves
InstitutionActionSharesFiled
VANGUARD GROUP INCIncreased10.3MJan 29, 2026
BLACKROCK, INC.Increased7.3MMay 13, 2026
BLACKROCK, INC.Increased6.6MFeb 12, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position5.4MMay 8, 2026
STATE STREET CORPIncreased5.0MMay 15, 2026
AQR CAPITAL MANAGEMENT LLCIncreased4.6MMay 15, 2026
STATE STREET CORPIncreased4.3MFeb 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position4.2MMay 15, 2026
JPMORGAN CHASE & COReduced4.0MFeb 11, 2026
RTW INVESTMENTS, LPIncreased3.6MMay 15, 2026
SANDS CAPITAL MANAGEMENT, LLCReduced3.5MFeb 13, 2026
SANDS CAPITAL MANAGEMENT, LLCReduced3.2MMay 8, 2026
SOFINNOVA INVESTMENTS, INC.Increased3.1MMay 15, 2026
RTW INVESTMENTS, LPReduced3.0MFeb 17, 2026
BAKER BROS. ADVISORS LPUnchanged2.8MFeb 17, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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