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Who

Michael Dybbs

Director

Company insider

Files Form 4 as: Director, Nkarta; Director, Sutro Biopharma; Director, Kalaris Therapeutics; Director, SpyGlass Pharma; Director, Dimension Therapeutics; Director, Versartis.

In numbers

Trades disclosed
32
Buys
1
Sells
0
Bought
$12.5M
Sold
$0
Companies
6
Companies where not an officer
6
First trade
20 Mar 2014
Last trade
10 Jun 2026
Last filed
11 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
NKTX NkartaDirector · Biotechnology · last 10 Jun 20260 buys · 0 sells
STRO Sutro BiopharmaDirector · Biotechnology · last 5 Jun 20260 buys · 0 sells
KLRS Kalaris TherapeuticsDirector · Biotechnology · last 3 Jun 20260 buys · 0 sells
SGP SpyGlass PharmaDirector · Medical Devices · last 5 Feb 20260 buys · 0 sells
Dimension TherapeuticsDirector · last 7 Nov 20171 buy · 0 sells
VersartisDirector · last 20 Mar 20140 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
10 Jun 2026filed 11 Jun 2026NKTX Nkartaoption or derivative · BiotechnologySEC FORM 4 Code A—37,000 at $0.00filing
10 Jun 2026filed 11 Jun 2026NKTX Nkartaoption or derivative · BiotechnologySEC FORM 4 Code A—37,000 at $0.00filing
5 Jun 2026filed 9 Jun 2026STRO Sutro Biopharmaoption or derivative · BiotechnologySEC FORM 4 Code A—10,000 at $0.00filing
5 Jun 2026filed 9 Jun 2026STRO Sutro Biopharmaoption or derivative · BiotechnologySEC FORM 4 Code A—10,000 at $0.00filing
3 Jun 2026filed 4 Jun 2026KLRS Kalaris Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—9,000 at $0.00filing
3 Jun 2026filed 4 Jun 2026KLRS Kalaris Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—9,000 at $0.00filing
5 Feb 2026filed 9 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code A—27,400 at $0.00filing
5 Feb 2026filed 9 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code A—27,400 at $0.00filing
23 Dec 2025filed 29 Dec 2025STRO Sutro Biopharmaoption or derivative · BiotechnologySEC FORM 4 Code A—1,500 at $0.00filing
6 Jun 2025filed 10 Jun 2025STRO Sutro Biopharmaoption or derivative · BiotechnologySEC FORM 4 Code A—50,000 at $0.00filing
5 Jun 2025filed 9 Jun 2025NKTX Nkartaoption or derivative · BiotechnologySEC FORM 4 Code A—46,000 at $0.00filing
10 Apr 2025filed 11 Apr 2025KLRS Kalaris Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—18,000 at $0.00filing
13 Jun 2024filed 14 Jun 2024NKTX Nkartaoption or derivative · BiotechnologySEC FORM 4 Code A—22,500 at $0.00filing
6 Jun 2024filed 10 Jun 2024STRO Sutro Biopharmaoption or derivative · BiotechnologySEC FORM 4 Code A—35,000 at $0.00filing
8 Jun 2023filed 12 Jun 2023STRO Sutro Biopharmaoption or derivative · BiotechnologySEC FORM 4 Code A—25,000 at $0.00filing
7 Jun 2023filed 9 Jun 2023NKTX Nkartaoption or derivative · BiotechnologySEC FORM 4 Code A—22,500 at $0.00filing
8 Jun 2022filed 10 Jun 2022NKTX Nkartaoption or derivative · BiotechnologySEC FORM 4 Code A—16,000 at $0.00filing
6 Jun 2022filed 8 Jun 2022STRO Sutro Biopharmaoption or derivative · BiotechnologySEC FORM 4 Code A—18,500 at $0.00filing
13 Jun 2021filed 15 Jun 2021NKTX Nkartaoption or derivative · BiotechnologySEC FORM 4 Code A—16,511 at $0.00filing
3 Jun 2021filed 7 Jun 2021STRO Sutro Biopharmaoption or derivative · BiotechnologySEC FORM 4 Code A—18,500 at $0.00filing

News

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

Sectors

Not placed1

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

Related people

Hans-Peter GerberChief Scientific Officer · Chief Scientific Officer at Sutro Biopharma, filing Form 4 there in the last year
Amy O'Leary VandekopVP, Corporate Controller · VP, Corporate Controller at Kalaris Therapeutics, filing Form 4 there in the last year
Laurie KeatingDirector · Director at Kalaris Therapeutics, filing Form 4 there in the last year
Liisa Ann BaykoChief Financial Officer · Chief Financial Officer at Kalaris Therapeutics, filing Form 4 there in the last year
Paul J. HastingsChief Executive Officer · Chief Executive Officer at Nkarta, filing Form 4 there in the last year