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Who

Hongbo Lu

Director

Company insider

Files Form 4 as: Director, Zenas BioPharma; Director, Arrowhead Pharmaceuticals; Director, Terns Pharmaceuticals; Director, Avedro; Director, Turning Point Therapeutics.

In numbers

Trades disclosed
51
Buys
21
Sells
1
Bought
$32.2M
Sold
$457K
Companies
5
Companies where not an officer
5
First trade
19 Feb 2019
Last trade
15 Jun 2026
Last filed
17 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
ZBIO Zenas BioPharmaDirector · Biotechnology · last 15 Jun 20266 buys · 0 sells
ARWR Arrowhead PharmaceuticalsDirector · Biotechnology · last 12 May 20268 buys · 1 sell
Terns PharmaceuticalsDirector · last 11 Jun 20256 buys · 0 sells
AvedroDirector · last 21 Nov 20190 buys · 0 sells
Turning Point TherapeuticsDirector · last 22 Apr 20191 buy · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
102Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
15 Jun 2026filed 17 Jun 2026ZBIO Zenas BioPharmaoption or derivative · BiotechnologySEC FORM 4 Code A—18,500 at $0.00filing
15 Jun 2026filed 17 Jun 2026ZBIO Zenas BioPharmaoption or derivative · BiotechnologySEC FORM 4 Code A—18,500 at $0.00filing
12 May 2026filed 14 May 2026ARWR Arrowhead PharmaceuticalsBiotechnologySEC FORM 4 Sold$228K2,970 at $76.88filing
12 May 2026filed 14 May 2026ARWR Arrowhead PharmaceuticalsBiotechnologySEC FORM 4 Sold$228K2,970 at $76.88filing
31 Mar 2026filed 2 Apr 2026ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$70K3,768 at $18.63filing
31 Mar 2026filed 2 Apr 2026ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$70K3,768 at $18.63filing
31 Mar 2026filed 31 Mar 2026ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$1.5M75,000 at $20.00filing
31 Mar 2026filed 31 Mar 2026ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$1.5M75,000 at $20.00filing
11 Feb 2026filed 13 Feb 2026ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$585K25,985 at $22.50filing
11 Feb 2026filed 13 Feb 2026ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$585K25,985 at $22.50filing
16 Dec 2025filed 18 Dec 2025ARWR Arrowhead PharmaceuticalsBiotechnologySEC FORM 4 Code A—7,819 at $0.00filing
7 Oct 2025filed 9 Oct 2025ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$5.0M263,160 at $19.00filing
11 Jun 2025filed 12 Jun 2025Terns Pharmaceuticalsoption or derivativeSEC FORM 4 Code A—45,000 at $0.00filing
10 Jun 2025filed 12 Jun 2025ZBIO Zenas BioPharmaoption or derivative · BiotechnologySEC FORM 4 Code A—18,500 at $0.00filing
1 Feb 2025filed 3 Feb 2025Terns Pharmaceuticalsoption or derivativeSEC FORM 4 Code A—10,657 at $0.00filing
18 Dec 2024filed 20 Dec 2024ARWR Arrowhead PharmaceuticalsBiotechnologySEC FORM 4 Code A$385K16,733 at $22.99filing
25 Sep 2024filed 15 Nov 2024ARWR Arrowhead PharmaceuticalsBiotechnologySEC FORM 4 Code G—5,650 at $0.00filing
13 Sep 2024filed 9 Oct 2025ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$1000K58,823 at $17.00filing
13 Sep 2024filed 17 Sep 2024ZBIO Zenas BioPharmaBiotechnologySEC FORM 4 Bought$1000K58,823 at $17.00filing
12 Sep 2024filed 17 Sep 2024Terns PharmaceuticalsSEC FORM 4 Bought$2.0M190,476 at $10.50filing

Sectors

Health Care15
Not placed7

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

Related people

Christy J. OligerDirector · Director at Zenas BioPharma, filing Form 4 there in the last year
Adeoye Y. OlukotunDirector · Director at Arrowhead Pharmaceuticals, filing Form 4 there in the last year
Michael S. PerryDirector · Director at Arrowhead Pharmaceuticals, filing Form 4 there in the last year
Joseph L. FarmerOfficer · Officer at Zenas BioPharma, filing Form 4 there in the last year
Patricia L. AllenDirector · Director at Zenas BioPharma, filing Form 4 there in the last year