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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•44 filings

RARE

Ultragenyx Pharmaceutical Inc.

Net sales of $181.8K over the last 3 months

3 sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

−$181,783

0 buyers · 3 sellers

12-month purchases

$0.00

0 distinct insiders

12-month sales

$1,475,268

5 distinct insiders

Highlighted alerts

4

14 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

71
Raw transactions
Everything returned by the filing
18
Voluntary view
P/S trades after deterministic checks
53
Administrative noise
Stored, never alerted
18
10b5-1
Shown as informational
SEC ownership XML facts
Code
S
Shares
7,066
Price
$15.27
Footnotes
2

Represents shares sold to pay required tax withholdings due to the vesting of RSUs. Includes previously reported shares of common stock underlying RSUs granted to the Reporting Person, which are subject to certain vesting conditions.

Raspberry interpretation
Informational — no alert

Reason: tax_withholding. The filing footnotes identify tax withholding.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

18 transactions

Huizenga Theodore Alan

SVP, Chief Accounting Officer

Sale 10b5-1
Shares
1,283
Price
$13.57
Value
$17,410
Open SEC filing

Parschauer Karah Herdman

EVP and Chief Legal Officer

Sale 10b5-1
Shares
1,900
Price
$24.92
Value
$47,348
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
4,696
Price
$24.92
Value
$117,024
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
4,698
Price
$33.13
Value
$155,645
Open SEC filing

Sanders Corazon (Corsee) D.

Director

SaleAlert
Shares
2,000
Price
$25.05
Value
$50,100
Open SEC filing

Parschauer Karah Herdman

EVP and Chief Legal Officer

Sale 10b5-1
Shares
1,899
Price
$24.62
Value
$46,753
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
4,653
Price
$23.77
Value
$110,602
Open SEC filing

SULIMAN SHEHNAAZ

Director

Sale 10b5-1
Shares
5,740
Price
$25.12
Value
$144,189
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
4,683
Price
$24.90
Value
$116,607
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
4,683
Price
$20.97
Value
$98,203
Open SEC filing

Parschauer Karah Herdman

EVP and Chief Legal Officer

SaleAlert
Shares
3,508
Price
$22.67
Value
$79,526
Open SEC filing

Parschauer Karah Herdman

EVP and Chief Legal Officer

SaleAlert
Shares
6,018
Price
$21.40
Value
$128,785
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
1,635
Price
$22.40
Value
$36,624
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
3,119
Price
$22.54
Value
$70,302
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
3,061
Price
$23.56
Value
$72,117
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
3,150
Price
$22.84
Value
$71,946
Open SEC filing

Horn Howard

Chief Financial Officer

Sale 10b5-1
Shares
3,081
Price
$36.38
Value
$112,087
Open SEC filing

Parschauer Karah Herdman

EVP and Chief Legal Officer

SaleAlert
Shares
2,450
Price
$31.17
Value
$76,367
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.