Jonathan Zalevsky

CIK: 0001789857

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)17 (77.3%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (22.7%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

NKTR

NEKTAR THERAPEUTICS

Officer

Discretionary Trading P&L

Holdings

Transaction History (22 total)

NKTR
NEKTAR THERAPEUTICS
Aug 18, 2026
Sale(S)
Direct
186 shares at avg. $71.98$13K
NKTR
NEKTAR THERAPEUTICS
Jul 24, 2026
Award(A)
Stock Option
Direct
16.5K shares-
NKTR
NEKTAR THERAPEUTICS
Jun 30, 2026
Sale(S)
Direct
5.7K shares at avg. $70.00$398K
NKTR
NEKTAR THERAPEUTICS
Jun 15, 2026
Sale(S)
Direct
5.5K shares at avg. $60.71$336K
NKTR
NEKTAR THERAPEUTICS
May 19, 2026
Sale(S)
Direct
199 shares at avg. $65.51$13K
NKTR
NEKTAR THERAPEUTICS
Feb 18, 2026
Sale(S)
Direct
180 shares at avg. $73.00$13K
NKTR
NEKTAR THERAPEUTICS
Jan 20, 2026
Sale(S)
Direct
3.9K shares at avg. $35.67$138K
NKTR
NEKTAR THERAPEUTICS
Dec 22, 2025
Award(A)
Direct
6.3K shares-
NKTR
NEKTAR THERAPEUTICS
Nov 25, 2025
Sale(S)
Direct
1.2K shares at avg. $54.28$63K
NKTR
NEKTAR THERAPEUTICS
Nov 21, 2025
Award(A)
Direct
2.7K shares-
NKTR
NEKTAR THERAPEUTICS
Sep 4, 2025
Sale(S)
Direct
432 shares at avg. $33.60$15K
NKTR
NEKTAR THERAPEUTICS
Sep 4, 2025
Sale(S)
Direct
307 shares at avg. $35.69$11K
NKTR
NEKTAR THERAPEUTICS
Sep 4, 2025
Sale(S)
Direct
189 shares at avg. $34.41$7K
NKTR
NEKTAR THERAPEUTICS
Sep 4, 2025
Sale(S)
Direct
793 shares at avg. $32.43$26K
NKTR
NEKTAR THERAPEUTICS
Sep 2, 2025
Sale(S)
Direct
485 shares at avg. $30.10$15K
NKTR
NEKTAR THERAPEUTICS
Aug 19, 2025
Award(A)
Stock Option
Direct
16.7K shares-
NKTR
NEKTAR THERAPEUTICS
Aug 19, 2025
Sale(S)
Direct
725 shares at avg. $26.59$19K
NKTR
NEKTAR THERAPEUTICS
May 19, 2025
Sale(S)
Direct
10.7K shares at avg. $0.67$7K
NKTR
NEKTAR THERAPEUTICS
Feb 19, 2025
Sale(S)
Direct
10.3K shares at avg. $1.01$10K
NKTR
NEKTAR THERAPEUTICS
Dec 19, 2024
Sale(S)
Direct
51.1K shares at avg. $0.94$48K
NKTR
NEKTAR THERAPEUTICS
Dec 13, 2024
Award(A)
Direct
135K shares-
NKTR
NEKTAR THERAPEUTICS
Nov 19, 2024
Sale(S)
Direct
7.8K shares at avg. $1.01$8K

		Type	Shares	Price		Ownership
Aug 18, 2026	NKTR NEKTAR THERAPEUTICS	Sale(S)	186	$71.98	$13,388	Direct
Jul 24, 2026	NKTR NEKTAR THERAPEUTICS	Award(A) Stock Option	16,500	-	-	Direct
Jun 30, 2026	NKTR NEKTAR THERAPEUTICS	Sale(S)	5,681	$70.00	$397,670	Direct
Jun 15, 2026	NKTR NEKTAR THERAPEUTICS	Sale(S)	5,538	$60.71	$336,212	Direct
May 19, 2026	NKTR NEKTAR THERAPEUTICS	Sale(S)	199	$65.51	$13,036	Direct
Feb 18, 2026	NKTR NEKTAR THERAPEUTICS	Sale(S)	180	$73.00	$13,140	Direct
Jan 20, 2026	NKTR NEKTAR THERAPEUTICS	Sale(S)	3,867	$35.67	$137,936	Direct
Dec 22, 2025	NKTR NEKTAR THERAPEUTICS	Award(A)	6,250	-	-	Direct
Nov 25, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	1,157	$54.28	$62,802	Direct
Nov 21, 2025	NKTR NEKTAR THERAPEUTICS	Award(A)	2,666	-	-	Direct
Sep 4, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	432	$33.60	$14,515	Direct
Sep 4, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	307	$35.69	$10,957	Direct
Sep 4, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	189	$34.41	$6,503	Direct
Sep 4, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	793	$32.43	$25,717	Direct
Sep 2, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	485	$30.10	$14,599	Direct
Aug 19, 2025	NKTR NEKTAR THERAPEUTICS	Award(A) Stock Option	16,666	-	-	Direct
Aug 19, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	725	$26.59	$19,278	Direct
May 19, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	10,712	$0.67	$7,177	Direct
Feb 19, 2025	NKTR NEKTAR THERAPEUTICS	Sale(S)	10,300	$1.01	$10,403	Direct
Dec 19, 2024	NKTR NEKTAR THERAPEUTICS	Sale(S)	51,115	$0.94	$48,048	Direct
Dec 13, 2024	NKTR NEKTAR THERAPEUTICS	Award(A)	135,000	-	$0	Direct
Nov 19, 2024	NKTR NEKTAR THERAPEUTICS	Sale(S)	7,785	$1.01	$7,863	Direct

1-22 of 22 transactions

About Zalevsky Jonathan

Zalevsky Jonathan (SEC CIK 0001789857) files insider reports with the SEC as Chief R&D Officer of NEKTAR THERAPEUTICS (NKTR).

Signal8 holds 17 ownership filings by Zalevsky Jonathan, all Form 4s, filed between Nov 20, 2024 and Aug 20, 2026. Those filings report 22 transactions, from Nov 19, 2024 to Aug 18, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Zalevsky Jonathan's filings is in SAN FRANCISCO, CA.

Recent filings by Zalevsky Jonathan

Aug 18, 2026: Open-market sale of NKTR shares (Form 4, code S).
Jul 24, 2026: Grant or award of NKTR derivative securities (Form 4, code A).
Jun 30, 2026: Open-market sale of NKTR shares (Form 4, code S).
Jun 15, 2026: Open-market sale of NKTR shares (Form 4, code S).
May 19, 2026: Open-market sale of NKTR shares (Form 4, code S).

Other insiders filing for NEKTAR THERAPEUTICS (NKTR)

WHITFIELD ROY A, Director
GREER R SCOTT, Director
CHESS ROBERT, Director
Brainard Diana, Director
Ajer Jeffrey Robert, Director
ROBIN HOWARD W, President & CEO

How to read Form 4 transaction codes