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Who

David Edward Johnson

Director and 10% owner

Company insider

Files Form 4 as: Director and 10% owner and Other, Liquidia; Director, Exelixis; 10% owner, Alimera Sciences; 10% owner, Standard BioTools; Director and 10% owner, Amag Pharmaceuticals.

Every Form 4 they filed

In numbers

Trades disclosed
42
Buys
15
Sells
2
Bought
$15.9M
Sold
$2.3M
Companies
5
Companies where not an officer
5
First trade
8 Oct 2019
Last trade
16 Jun 2026
Last filed
18 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
LQDA LiquidiaDirector, 10% owner, Other · Biotechnology · last 16 Jun 20262 buys · 1 sell
EXEL ExelixisDirector · Biotechnology · last 27 May 20262 buys · 0 sells
Alimera Sciences10% owner · last 14 Sep 20231 buy · 1 sell
LAB Standard BioTools10% owner · Life-science tools · last 3 Jul 202310 buys · 0 sells
Amag PharmaceuticalsDirector, 10% owner · last 16 Nov 20200 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
16 Jun 2026filed 18 Jun 2026LQDA LiquidiaBiotechnologySEC FORM 4 Code A—5,882 at $0.00filing
27 May 2026filed 29 May 2026EXEL Exelixisoption or derivative · BiotechnologySEC FORM 4 Code A—19,133 at $0.00filing
27 May 2026filed 29 May 2026EXEL Exelixisoption or derivative · BiotechnologySEC FORM 4 Code A—19,133 at $0.00filing
19 May 2026filed 20 May 2026LQDA LiquidiaBiotechnologySEC FORM 4 Sold$318K5,300 at $59.98filing
19 May 2026filed 20 May 2026LQDA LiquidiaBiotechnologySEC FORM 4 Bought$318K5,300 at $59.98filing
17 Jun 2025filed 20 Jun 2025LQDA LiquidiaBiotechnologySEC FORM 4 Code A—18,396 at $0.00filing
30 May 2024filed 30 May 2024EXEL ExelixisBiotechnologySEC FORM 4 Bought$4.7M225,000 at $20.76filing
28 May 2024filed 30 May 2024EXEL ExelixisBiotechnologySEC FORM 4 Bought$4.1M200,000 at $20.32filing
14 Sep 2023filed 15 Sep 2023Alimera Sciencesoption or derivativeSEC FORM 4 Code J—1filing
14 Sep 2023filed 15 Sep 2023Alimera SciencesSEC FORM 4 Sold$2.0M579,000 at $3.39filing
14 Sep 2023filed 15 Sep 2023Alimera SciencesSEC FORM 4 Bought$2.0M579,000 at $3.39filing
15 Aug 2023filed 17 Aug 2023Alimera Sciencesoption or derivativeSEC FORM 4 Code C—2,924,761 at $0.00filing
15 Aug 2023filed 17 Aug 2023Alimera Sciencesoption or derivativeSEC FORM 4 Code C—13,431,616 at $0.00filing
15 Aug 2023filed 17 Aug 2023Alimera SciencesSEC FORM 4 Code C$6.1M2,924,761 at $2.10filing
15 Aug 2023filed 17 Aug 2023Alimera SciencesSEC FORM 4 Code C$22.8M13,431,616 at $1.70filing
3 Jul 2023filed 3 Jul 2023LAB Standard BioToolsLife-science toolsSEC FORM 4 Code J—670,466filing
29 Jun 2023filed 3 Jul 2023LAB Standard BioToolsLife-science toolsSEC FORM 4 Code J—108,879filing
6 Sep 2022filed 7 Sep 2022LQDA LiquidiaBiotechnologySEC FORM 4 Bought$1.4M250,000 at $5.62filing
4 Aug 2022filed 5 Aug 2022LAB Standard BioToolsLife-science toolsSEC FORM 4 Bought$447K255,173 at $1.75filing
3 Aug 2022filed 5 Aug 2022LAB Standard BioToolsLife-science toolsSEC FORM 4 Bought$80K46,009 at $1.74filing

Sectors

Health Care15
Not placed2

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

Related people

Jason AdairChief Business Officer · Chief Business Officer at Liquidia, filing Form 4 there in the last year
Sanjeev KhindriChief Development Officer · Chief Development Officer at Liquidia, filing Form 4 there in the last year
Sarah KreppChief Human Resource Officer · Chief Human Resource Officer at Liquidia, filing Form 4 there in the last year
Dana BoyleChief Accounting Officer · Chief Accounting Officer at Liquidia, filing Form 4 there in the last year
Roger JeffsChief Executive Officer · Chief Executive Officer at Liquidia, filing Form 4 there in the last year
Michael KasetaCFO and COO · Also traded LQDA in the last 90 days
Rajeev SaggarChief Medical Officer · Also traded LQDA in the last 90 days
Russell SchundlerGeneral Counsel · Also traded LQDA in the last 90 days