RARE

Healthcare

Ultragenyx Pharmaceutical Inc.

$21.50-0.21 (-0.97%)

Prev Close

$21.71

Open

$21.94

High

$22.27

Low

$21.34

Volume

956.8K

Market Cap

$2.15B

P/E

—

Div Yield

—

Over the past 12 months, insider activity at Ultragenyx Pharmaceutical Inc. (RARE) has been exclusively selling, with 0 insider purchases totaling $0.00 and 11 insider sales totaling $5.02M. The most recent insider transaction was by Parschauer Karah Herdman (officer: EVP and Chief Legal Officer), who sold $208.3K worth of shares on Mar 10, 2026. Ultragenyx Pharmaceutical Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $2.15B.

Buys (12M)

$0.00

Sells (12M)

$5.02M

Net Activity

Net Seller

$5.02M

Active Insiders

last 12 mo

RARE Price Chart

RARE Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Mar 10, 2026↗	Parschauer Karah Herdman	officer: EVP and Chief Legal Officer	Sell	9,526	$21.87	$208.3K	70,328
Mar 3, 2026↗	Crombez Eric	officer: EVP and Chief Medical Officer	Sell	14,058	$22.80	$320.5K	76,301
Mar 3, 2026↗	Harris Erik	officer: EVP & Chief Commercial Officer	Sell	21,078	$22.80	$480.6K	89,515
Mar 3, 2026↗	Horn Howard	officer: Chief Financial Officer	Sell	20,088	$22.65	$455.1K	89,788
Mar 3, 2026↗	Huizenga Theodore Alan	officer: SVP, Chief Accounting Officer	Sell	3,264	$22.80	$74.4K	48,670
Mar 3, 2026↗	KAKKIS EMIL D	director, officer: President & CEO	Sell	108,808	$22.80	$2.48M	658,994
Mar 3, 2026↗	Parschauer Karah Herdman	officer: EVP and Chief Legal Officer	Sell	16,270	$22.80	$371.0K	76,346
Mar 3, 2026↗	Pinion John Richard	officer: See Remarks	Sell	20,058	$22.80	$457.3K	110,026
Feb 3, 2026↗	Horn Howard	officer: Chief Financial Officer	Sell	3,061	$23.56	$72.1K	88,935
Jan 5, 2026↗	Horn Howard	officer: Chief Financial Officer	Sell	3,150	$22.84	$71.9K	91,996
Apr 21, 2025↗	Crombez Eric	EVP and Chief Medical Officer	Sell	762	$37.93	$28.9K	0
Mar 6, 2025↗	Horn Howard	Chief Financial Officer	Sell	1,785	$40.40	$72.1K	0
Mar 1, 2025↗	Crombez Eric	EVP and Chief Medical Officer	Sell	8,945	$42.10	$376.6K	0
Mar 1, 2025↗	Harris Erik	EVP & Chief Commercial Officer	Sell	15,103	$42.10	$635.8K	0
Mar 1, 2025↗	Huang Dennis Karl	See Remarks	Sell	1,348	$42.92	$57.9K	0
Mar 1, 2025↗	Huizenga Theodore Alan	SVP, Chief Accounting Officer	Sell	1,108	$42.20	$46.8K	0
Mar 1, 2025↗	Kassberg Thomas Richard	CBO & EVP	Sell	6,536	$42.16	$275.6K	0
Mar 1, 2025↗	Parschauer Karah Herdman	EVP and Chief Legal Officer	Sell	12,846	$42.10	$540.8K	0
Mar 1, 2025↗	Pinion John Richard	See Remarks	Sell	14,470	$42.10	$609.2K	0
Feb 28, 2025↗	KAKKIS EMIL D	President & CEO	Sell	98,434	$42.20	$4.15M	0
Feb 27, 2025↗	Parschauer Karah Herdman	EVP and Chief Legal Officer	Sell	2,990	$42.88	$128.2K	0

RARE Insider Buying Activity

The following table shows recent insider purchases of Ultragenyx Pharmaceutical Inc. (RARE) stock reported via SEC Form 4 filings.

No insider buying activity found for RARE in the last 12 months.

RARE Insider Selling Activity

The following table shows recent insider sales of Ultragenyx Pharmaceutical Inc. (RARE) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Mar 10, 2026↗	Parschauer Karah Herdman	officer: EVP and Chief Legal Officer	Sell	9,526	$21.87	$208.3K	70,328
Mar 3, 2026↗	Crombez Eric	officer: EVP and Chief Medical Officer	Sell	14,058	$22.80	$320.5K	76,301
Mar 3, 2026↗	Harris Erik	officer: EVP & Chief Commercial Officer	Sell	21,078	$22.80	$480.6K	89,515
Mar 3, 2026↗	Horn Howard	officer: Chief Financial Officer	Sell	20,088	$22.65	$455.1K	89,788
Mar 3, 2026↗	Huizenga Theodore Alan	officer: SVP, Chief Accounting Officer	Sell	3,264	$22.80	$74.4K	48,670
Mar 3, 2026↗	KAKKIS EMIL D	director, officer: President & CEO	Sell	108,808	$22.80	$2.48M	658,994
Mar 3, 2026↗	Parschauer Karah Herdman	officer: EVP and Chief Legal Officer	Sell	16,270	$22.80	$371.0K	76,346
Mar 3, 2026↗	Pinion John Richard	officer: See Remarks	Sell	20,058	$22.80	$457.3K	110,026
Feb 3, 2026↗	Horn Howard	officer: Chief Financial Officer	Sell	3,061	$23.56	$72.1K	88,935
Jan 5, 2026↗	Horn Howard	officer: Chief Financial Officer	Sell	3,150	$22.84	$71.9K	91,996
Apr 21, 2025↗	Crombez Eric	EVP and Chief Medical Officer	Sell	762	$37.93	$28.9K	0
Mar 6, 2025↗	Horn Howard	Chief Financial Officer	Sell	1,785	$40.40	$72.1K	0
Mar 1, 2025↗	Crombez Eric	EVP and Chief Medical Officer	Sell	8,945	$42.10	$376.6K	0
Mar 1, 2025↗	Harris Erik	EVP & Chief Commercial Officer	Sell	15,103	$42.10	$635.8K	0
Mar 1, 2025↗	Huang Dennis Karl	See Remarks	Sell	1,348	$42.92	$57.9K	0
Mar 1, 2025↗	Huizenga Theodore Alan	SVP, Chief Accounting Officer	Sell	1,108	$42.20	$46.8K	0
Mar 1, 2025↗	Kassberg Thomas Richard	CBO & EVP	Sell	6,536	$42.16	$275.6K	0
Mar 1, 2025↗	Parschauer Karah Herdman	EVP and Chief Legal Officer	Sell	12,846	$42.10	$540.8K	0
Mar 1, 2025↗	Pinion John Richard	See Remarks	Sell	14,470	$42.10	$609.2K	0
Feb 28, 2025↗	KAKKIS EMIL D	President & CEO	Sell	98,434	$42.20	$4.15M	0
Feb 27, 2025↗	Parschauer Karah Herdman	EVP and Chief Legal Officer	Sell	2,990	$42.88	$128.2K	0