rotation.to
Following this device: dark.
Free account
rotation.to
Appearance
Following this device: dark.
Drag a card by its title · ⚙ to size, swap or remove

Who

Daniel G. Welch

Director

Company insider

Files Form 4 as: Director, Structure Therapeutics; Director, Prothena Corporation; Director, Ultragenyx Pharmaceutical; Director, Nuvation Bio; Director, Seagen; Director, Intercept Pharmaceuticals; Director, AveXis; Director, Hyperion Therapeutics.

In numbers

Trades disclosed
357
Buys
0
Sells
40
Bought
$0
Sold
$74.7M
Companies
9
Companies where not an officer
8
First trade
15 Mar 2006
Last trade
17 Jun 2026
Last filed
18 Jun 2026

Companies traded

Where they are an officer
IntermuneDirector, Officer · last 29 Sep 20140 buys · 27 sells
Everywhere else they filed: board seats, 10% stakes, other companies
GPCR Structure TherapeuticsDirector · Biotechnology · last 17 Jun 20260 buys · 0 sells
PRTA Prothena CorporationDirector · Biotechnology · last 15 May 20260 buys · 0 sells
RARE Ultragenyx PharmaceuticalDirector · Biotechnology · last 14 May 20260 buys · 0 sells
NUVB Nuvation BioDirector · Biotechnology · last 24 May 20240 buys · 0 sells
SeagenDirector · last 14 Dec 20230 buys · 11 sells
Intercept PharmaceuticalsDirector · last 28 May 20200 buys · 2 sells
AveXisDirector · last 15 May 20180 buys · 0 sells
Hyperion TherapeuticsDirector · last 7 May 20150 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
17 Jun 2026filed 18 Jun 2026GPCR Structure Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—39,453 at $0.00filing
17 Jun 2026filed 18 Jun 2026GPCR Structure Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—39,453 at $0.00filing
15 May 2026filed 15 May 2026PRTA Prothena Corporationoption or derivative · BiotechnologySEC FORM 4 Code A—27,000 at $0.00filing
15 May 2026filed 15 May 2026PRTA Prothena Corporationoption or derivative · BiotechnologySEC FORM 4 Code A—27,000 at $0.00filing
14 May 2026filed 18 May 2026RARE Ultragenyx PharmaceuticalBiotechnologySEC FORM 4 Code A—7,751 at $0.00filing
14 May 2026filed 18 May 2026RARE Ultragenyx Pharmaceuticaloption or derivative · BiotechnologySEC FORM 4 Code A—14,058 at $0.00filing
14 May 2026filed 18 May 2026RARE Ultragenyx Pharmaceuticaloption or derivative · BiotechnologySEC FORM 4 Code A—14,058 at $0.00filing
14 May 2026filed 18 May 2026RARE Ultragenyx PharmaceuticalBiotechnologySEC FORM 4 Code A—7,751 at $0.00filing
23 Jun 2025filed 25 Jun 2025GPCR Structure Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—51,804 at $0.00filing
15 May 2025filed 19 May 2025RARE Ultragenyx Pharmaceuticaloption or derivative · BiotechnologySEC FORM 4 Code A—10,787 at $0.00filing
15 May 2025filed 19 May 2025RARE Ultragenyx PharmaceuticalBiotechnologySEC FORM 4 Code A—5,740 at $0.00filing
14 May 2025filed 16 May 2025PRTA Prothena Corporationoption or derivative · BiotechnologySEC FORM 4 Code A—20,183 at $0.00filing
25 Jun 2024filed 27 Jun 2024GPCR Structure Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—37,500 at $0.00filing
18 Jun 2024filed 20 Jun 2024RARE Ultragenyx Pharmaceuticaloption or derivative · BiotechnologySEC FORM 4 Code A—9,900 at $0.00filing
18 Jun 2024filed 20 Jun 2024RARE Ultragenyx PharmaceuticalBiotechnologySEC FORM 4 Code A—5,345 at $0.00filing
24 May 2024filed 29 May 2024NUVB Nuvation Biooption or derivative · BiotechnologySEC FORM 4 Code M—293,203 at $0.00filing
24 May 2024filed 29 May 2024NUVB Nuvation Biooption or derivative · BiotechnologySEC FORM 4 Code M—366,744 at $0.00filing
24 May 2024filed 29 May 2024NUVB Nuvation BioBiotechnologySEC FORM 4 Code M$510K293,203 at $1.74filing
24 May 2024filed 29 May 2024NUVB Nuvation BioBiotechnologySEC FORM 4 Code M$601K366,744 at $1.64filing
15 May 2024filed 17 May 2024PRTA Prothena Corporationoption or derivative · BiotechnologySEC FORM 4 Code A—15,000 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Not placed40

Buys in green, sells in red, by the company’s sector.

Related people

Nobody else traded the same names lately.