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Who

David A. Ramsay

EVP, President, Drug Delivery

Company insider

Files Form 4 as: EVP, President, Drug Delivery, Halozyme Therapeutics; Director, Savara; Director, La Jolla Pharmaceutical Co.

In numbers

Trades disclosed
248
Buys
76
Sells
4
Bought
$4.7M
Sold
$423K
Companies
3
Companies where not an officer
2
First trade
5 Feb 2007
Last trade
1 Jul 2026
Last filed
2 Jul 2026

Companies traded

Where they are an officer
HALO Halozyme TherapeuticsOfficer · Biotechnology · last 1 Jul 20262 buys · 3 sells
Everywhere else they filed: board seats, 10% stakes, other companies
SVRA SavaraDirector · Biotechnology · last 19 Dec 202565 buys · 1 sell
La Jolla Pharmaceutical CoDirector · last 22 Aug 20229 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
1 Jul 2026filed 2 Jul 2026HALO Halozyme Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—16,232 at $0.00filing
1 Jul 2026filed 2 Jul 2026HALO Halozyme Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—39,823 at $0.00filing
1 Jul 2026filed 2 Jul 2026HALO Halozyme Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—16,232 at $0.00filing
1 Jul 2026filed 2 Jul 2026HALO Halozyme Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—39,823 at $0.00filing
30 Jun 2026filed 2 Jul 2026HALO Halozyme TherapeuticsBiotechnologySEC FORM 4 Code M—10,000 at $0.00filing
30 Jun 2026filed 2 Jul 2026HALO Halozyme TherapeuticsBiotechnologySEC FORM 4 Code F$423K5,408 at $78.27filing
30 Jun 2026filed 2 Jul 2026HALO Halozyme Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code M—10,000 at $0.00filing
30 Jun 2026filed 2 Jul 2026HALO Halozyme Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code M—10,000 at $0.00filing
30 Jun 2026filed 2 Jul 2026HALO Halozyme TherapeuticsBiotechnologySEC FORM 4 Code M—10,000 at $0.00filing
30 Jun 2026filed 2 Jul 2026HALO Halozyme TherapeuticsBiotechnologySEC FORM 4 Code F$423K5,408 at $78.27filing
1 Apr 2026filed 2 Apr 2026HALO Halozyme Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—10,000 at $0.00filing
1 Apr 2026filed 2 Apr 2026HALO Halozyme Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—10,000 at $0.00filing
19 Dec 2025filed 19 Dec 2025SVRA SavaraBiotechnologySEC FORM 4 Sold$121K20,000 at $6.06filing
9 Dec 2025filed 11 Dec 2025SVRA SavaraBiotechnologySEC FORM 4 Code A—40,000 at $0.00filing
31 Mar 2025filed 1 Apr 2025SVRA SavaraBiotechnologySEC FORM 4 Bought$417K150,000 at $2.78filing
12 Dec 2024filed 16 Dec 2024SVRA SavaraBiotechnologySEC FORM 4 Code A—40,000 at $0.00filing
18 Nov 2024filed 18 Nov 2024SVRA SavaraBiotechnologySEC FORM 4 Bought$288K100,000 at $2.88filing
14 Dec 2023filed 15 Dec 2023SVRA SavaraBiotechnologySEC FORM 4 Code A—22,500 at $0.00filing
26 May 2023filed 26 May 2023SVRA SavaraBiotechnologySEC FORM 4 Bought$98K37,124 at $2.63filing
25 May 2023filed 26 May 2023SVRA SavaraBiotechnologySEC FORM 4 Bought$33K12,876 at $2.57filing

News

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

Sectors

Health Care71
Not placed9

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

Related people

Helen TorleyPresident and CEO · President and CEO at Halozyme Therapeutics, filing Form 4 there in the last year
Bernadette ConnaughtonDirector · Director at Halozyme Therapeutics, filing Form 4 there in the last year
James M. DalyDirector · Director at Halozyme Therapeutics, filing Form 4 there in the last year
Matthew L. PosardDirector · Director at Halozyme Therapeutics, filing Form 4 there in the last year
Dannielle AppelhansDirector · Director at Halozyme Therapeutics, filing Form 4 there in the last year
Gilbert Ray Cisneros, Jr.Representative, CA-31 · Also traded HALO in the last 90 days