Xencor (XNCR) director sells 5,474 shares under Rule 10b5-1 plan

Filing Impact

(Neutral)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Xencor Inc director Kurt A. Gustafson reported an open-market sale of company stock. He sold 5,474 shares of Common Stock at a price of $12.31 per share. After this transaction, he directly holds 14,709 Xencor shares. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person.

Insider Trade Summary 10b5-1

Net Seller: 5,474 shares ($67,385)

Net Sell 1 txn

Insider GUSTAFSON KURT A

Role null

Sold 5,474 shs ($67K)

Type	Security	Shares	Price	Value
Sale	Common Stock	5,474	$12.31	$67K

Holdings After Transaction: Common Stock — 14,709 shares (Direct, null)

Footnotes (1)

[object Object]

Key Figures

Shares sold: 5,474 shares Sale price: $12.31 per share Shares held after transaction: 14,709 shares +2 more

5 metrics

Shares sold 5,474 shares Open-market sale of Common Stock

Sale price $12.31 per share Price for the reported sale on Common Stock

Shares held after transaction 14,709 shares Direct Common Stock ownership following sale

Total shares sold (summary) 5,474 shares SellShares in transaction summary

Net buy/sell shares -5,474 shares NetBuySellShares indicating net-sell activity

Key Terms

Rule 10b5-1 plan, open-market sale, Form 4, Common Stock, +1 more

5 terms

Rule 10b5-1 plan financial

"This transaction is pursuant to a 10b5-1 plan adopted by the Reporting Person"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

net-sell financial

"netBuySellDirection: "net-sell""

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/17/2026 - 04:02 PM Accepted by SEC EDGAR 06/17/2026 - 04:01 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

GUSTAFSON KURT A

(Last)

(First)

(Middle)

C/O XENCOR, INC.

465 N HALSTEAD STREET, SUITE 200

(Street)

PASADENA

CALIFORNIA

91107

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Xencor Inc [ XNCR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/15/2026		S⁽¹⁾		5,474	D	$12.31	14,709	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. This transaction is pursuant to a 10b5-1 plan adopted by the Reporting Person on June 24, 2025.

Remarks:

	/s/ Celia E. Eckert, Attorney-in-Fact	06/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did Xencor (XNCR) director Kurt A. Gustafson report in this Form 4?

Kurt A. Gustafson reported selling 5,474 shares of Xencor Common Stock. The transaction was an open-market sale at $12.31 per share, and it was executed under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person.

How many Xencor (XNCR) shares did Kurt A. Gustafson sell and at what price?

He sold 5,474 shares of Xencor Common Stock at $12.31 per share. This reflects a single reported open-market sale transaction on the Form 4, with all figures disclosed directly in the insider filing data.

How many Xencor (XNCR) shares does Kurt A. Gustafson hold after the sale?

After the reported sale, Kurt A. Gustafson directly holds 14,709 Xencor shares. This post-transaction ownership figure comes from the Form 4 data and represents his remaining direct Common Stock holdings following the open-market sale.

Was the Xencor (XNCR) insider sale made under a Rule 10b5-1 plan?

Yes. A footnote states the transaction was executed pursuant to a Rule 10b5-1 trading plan. Such plans are pre-arranged stock trading programs, which can indicate the timing of trades is set in advance rather than decided opportunistically.

Does the Form 4 for Xencor (XNCR) include any derivative securities activity?

No derivative securities transactions are shown in this Form 4. The filing reports only a single non-derivative transaction in Common Stock, with no option exercises, conversions, or other derivative positions listed in the derivative summary.