Kodiak Sciences director exercises 20,000 options

The exercised options were fully vested and had an exercise price of $2.35 per share and an expiration date of June 28, 2034.

Rhea-AI Filing Summary

Kodiak Sciences Inc. director Taiyin Yang exercised 20,000 stock options on October 23, 2026, acquiring 20,000 common shares at an exercise price of $2.35 per share. The options were fully vested and had an expiration date of June 28, 2034. Yang reported direct ownership of 20,000 common shares following the transaction. No Rule 10b5-1 plan is reported.

Insider Trade Summary

20,000 shares exercised/converted

Exercise 2 txns

Insider Yang Taiyin

Role Director

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy) F1	20,000	$0.00	$0.00
Exercise	Common Stock	20,000	$2.35	$47K

Holdings After Transaction: Stock Option (Right to Buy) — 20,000 contracts (Direct); Common Stock — 20,000 shares (Direct)

Footnotes (1)

1. F1. Shares subject to the option are fully vested.

Key Figures

Options exercised: 20,000 options Exercise price: $2.35 per share Common shares acquired: 20,000 shares +2 more

5 metrics

Options exercised 20,000 options October 23, 2026

Exercise price $2.35 per share Options exercised October 23, 2026

Common shares acquired 20,000 shares October 23, 2026

Direct common shares following transaction 20,000 shares Reported after the transaction

Option expiration date June 28, 2034 Expiration date for the exercised options

Key Terms

Stock Option (Right to Buy), exercise price, fully vested

3 terms

Stock Option (Right to Buy) financial

"20,000 Stock Option (Right to Buy)"

exercise price financial

"exercise price of $2.35 per share"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

fully vested financial

"Shares subject to the option are fully vested."

FAQ

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

How many KOD shares did director Taiyin Yang acquire, and at what price?

Taiyin Yang exercised 20,000 options on October 23, 2026, acquiring 20,000 common shares at $2.35 per share. The options were fully vested, and Yang reported direct ownership of 20,000 common shares following the transaction.

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

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Available on EDGAR 10/26/2026 - 05:01 PM EDT Accepted by SEC EDGAR 10/26/2026 - 05:00 PM EDT Learn about SEC filing dates

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^*

Yang Taiyin

(Last) (First) (Middle)

1250 PAGE MILL ROAD

(Street)

PALO ALTO CALIFORNIA 94304

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Kodiak Sciences Inc. [ KOD ]

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)
10/23/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/23/2026		M		20,000	A	$2.35	20,000	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$2.35	10/23/2026		M			20,000	(1)	06/28/2034	Common Stock	20,000	$0	20,000	D

Explanation of Responses:

1. Shares subject to the option are fully vested.

	/s/ David Peinsipp, Attorney-in-Fact for Taiyin Yang	10/26/2026
	** 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)