Director sells 5,737 shares under 10b5-1 plan

Jonathan Zalevsky reported sales of 5,737 shares of Common Stock under a pre-arranged 10b5-1 plan.

Rhea-AI Filing Summary

Jonathan Zalevsky reported sales of 5,737 shares of Common Stock under a pre-arranged 10b5-1 plan.

The filing lists two transactions: 05/19/2026 sale of 199 shares for $13,036.49, and 06/15/2026 sale of 5,538 shares for $336,190.38. The record also shows 5,681 Restricted Stock Units dated 11/15/2020 with a reference date of 06/30/2026.

Insights

Compliance Officer

Reported transactions are routine 10b5-1 sales by an executive; filings align with scheduled plan activity.

The filing records two sales totalling $349,226.87 executed under a 10b5-1 arrangement on 05/19/2026 and 06/15/2026. The amounts and dates are explicitly listed.

These are compliance‑reporting events; cash‑flow treatment is proceeds to the selling holder and the filing attributes the trades to the reporting person. Subsequent filings will show any further activity.

Key Figures

Sale on 06/15/2026: 5,538 shares Sale on 05/19/2026: 199 shares Total shares sold: 5,737 shares +2 more

5 metrics

Sale on 06/15/2026 5,538 shares sale proceeds <money>$336,190.38</money>

Sale on 05/19/2026 199 shares sale proceeds <money>$13,036.49</money>

Total shares sold 5,737 shares aggregate of two disclosed sales

Restricted Stock Units 5,681 shares RSUs dated <date>11/15/2020</date> referenced with <date>06/30/2026</date>

Aggregate proceeds $349,226.87 sum of the two disclosed sale amounts

Key Terms

10b5-1, Restricted Stock Units, Form 144

3 terms

10b5-1 regulatory

"10b5-1 Sales for JONATHAN ZALEVSKY 455 Mission Bay Boulevard"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Restricted Stock Units financial

"Restricted Stock Units | Issuer | 5681 | 11/15/2020"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What shares did Jonathan Zalevsky sell according to the NKTR Form 144?

He sold a total of 5,737 shares of Common Stock across two trades. The filing lists 05/19/2026 sale of 199 shares for $13,036.49 and 06/15/2026 sale of 5,538 shares for $336,190.38.

Were the sales made under a Rule 10b5-1 plan in the filing for NKTR?

Yes. The filing explicitly notes these as 10b5-1 sales for Jonathan Zalevsky. The two transactions dated 05/19/2026 and 06/15/2026 are identified as executed under that plan.

Does the filing show any Restricted Stock Units for the reporting person?

The filing lists 5,681 Restricted Stock Units with an original date of 11/15/2020 and a reference date of 06/30/2026. That RSU count appears in the securities information section of the excerpt.

How much gross proceeds did the reported sales generate in the NKTR filing?

The two disclosed sales generated gross proceeds of $349,226.87 in aggregate. This equals $13,036.49 from the 05/19/2026 trade plus $336,190.38 from the 06/15/2026 trade as listed in the filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/30/2026 - 04:36 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001789857
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	NEKTAR THERAPEUTICS
SEC File Number	000-24006
Address of Issuer	455 Mission Bay Boulevard South San Francisco CALIFORNIA 94158
Phone	4254825300
Name of Person for Whose Account the Securities are To Be Sold	JONATHAN ZALEVSKY
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5681	371480.59	33786032	06/30/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/15/2020	Restricted Stock Units	Issuer			5681	11/15/2020	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for JONATHAN ZALEVSKY 455 Mission Bay Boulevard South San Francisco CA 94158	Common	06/15/2026	5538	336190.38
JONATHAN ZALEVSKY 455 Mission Bay Boulevard South San Francisco CA 94158	Common	05/19/2026	199	13036.49

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 11/15/2020 through 08/15/2023.
Date of Notice	06/30/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/13/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jonathan Zalevsky
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)