Huizenga Theodore Alan Insider Trading Activity

Corporate InsiderVP · CIK 1603347

5

Total trades

$47K

Total volume

Sep 3, 2026

Last activity

RARE

Ultragenyx Pharmaceutical Inc.

Huizenga Theodore Alan has been net-selling over the last 12 months with 0 purchases and 3 sales across 1 company.

RARE is the most-traded position with 3 trades. The largest single transaction was a sale of RARE for $37K on Mar 2, 2026.

Performance Scorecard

Forward stock performance after each transaction by Huizenga Theodore Alan. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIODAVG BUY RETURNAVG SELL AVOIDEDSUCCESS RATETRADES
30 days+5.2%75%4
90 days+3.3%25%4
120 days+7.9%75%4

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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RARE · Ultragenyx Pharmaceutical Inc.

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Recent Trades

DATETICKERTYPESHARESPRICEVALUEΔ OWNEDROLEFILING
Sep 3, 2026
Filed 3d late
RARESell161$13.99$2K−0.2%VP
Mar 2, 2026
RARESell1,632$22.80$37K−3.2%VP
Dec 29, 2025
RARESell85$34.38$3K−0.2%VP
Sep 18, 2025
RARESell64$29.17$2K−0.1%VP
Sep 5, 2025
RARESell84$31.39$3K−0.2%VP

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
RAREUltragenyx Pharmaceutical Inc.5$47K

Other insiders at Ultragenyx Pharmaceutical Inc.

2 other tracked filers at RARE.