John Borgeson sold $2.7M of Kodiak Sciences stock

By AlphaYouPublished Oct 23, 2026Form 4

Stocks in this disclosure

Reported activity

BORGESON JOHN A.

Reporting filer

John Borgeson reported selling 30,000 shares of Kodiak Sciences Inc. for about $2.7M ($90.01 a share on average). Form 4 filed Oct 23, 2026 lists 10 entries.

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Disclosed: Oct 23, 2026

Reported details

10 entries

All validated entries in this disclosure
Security	Owner	Date	Code	Action	Quantity	Price	Following holdings	Reporting delay	Filed terms and references
Common Stock	BORGESON JOHN A.	2026-10-21	M	Exercise or conversion	30000	2.49	241,930	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 transaction Shares: 30000 transaction Price Per Share: 2.49 transaction Acquired Disposed Code: A shares Owned Following Transaction: 241930 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	BORGESON JOHN A.	2026-10-21	S	Sale	8514	87.67	233,416	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 8514 transaction Price Per Share: 87.67 id: F2 transaction Acquired Disposed Code: D shares Owned Following Transaction: 233416 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	BORGESON JOHN A.	2026-10-21	S	Sale	1677	89.20	231,739	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 1677 transaction Price Per Share: 89.20 id: F3 transaction Acquired Disposed Code: D shares Owned Following Transaction: 231739 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	BORGESON JOHN A.	2026-10-21	S	Sale	7623	89.74	224,116	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 7623 transaction Price Per Share: 89.74 id: F4 transaction Acquired Disposed Code: D shares Owned Following Transaction: 224116 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	BORGESON JOHN A.	2026-10-21	S	Sale	5101	90.98	219,015	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 5101 transaction Price Per Share: 90.98 id: F5 transaction Acquired Disposed Code: D shares Owned Following Transaction: 219015 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	BORGESON JOHN A.	2026-10-21	S	Sale	2985	91.76	216,030	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 2985 transaction Price Per Share: 91.76 id: F6 transaction Acquired Disposed Code: D shares Owned Following Transaction: 216030 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	BORGESON JOHN A.	2026-10-21	S	Sale	2000	92.66	214,030	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 2000 transaction Price Per Share: 92.66 id: F7 transaction Acquired Disposed Code: D shares Owned Following Transaction: 214030 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	BORGESON JOHN A.	2026-10-21	S	Sale	2000	93.71	212,030	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 2000 transaction Price Per Share: 93.71 id: F8 transaction Acquired Disposed Code: D shares Owned Following Transaction: 212030 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	BORGESON JOHN A.	2026-10-21	S	Sale	100	94.91	211,930	2 days	Filed terms security Title: Common Stock transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 100 transaction Price Per Share: 94.91 transaction Acquired Disposed Code: D shares Owned Following Transaction: 211930 direct Or Indirect Ownership: D nature Of Ownership:
Stock Option (Right to Buy) (derivative)	BORGESON JOHN A.	2026-10-21	M	Exercise or conversion	30000	0	304,500	2 days	Filed terms security Title: Stock Option (Right to Buy) conversion Or Exercise Price: 2.49 transaction Date: 2026-10-21 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 transaction Shares: 30000 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F9 expiration Date: 2034-08-04 underlying Security Title: Common Stock underlying Security Shares: 30000 shares Owned Following Transaction: 304500 direct Or Indirect Ownership: D nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: M
Action: Exercise or conversion
Quantity: 30000
Price: 2.49
Following holdings: 241,930
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
transaction Shares: 30000
transaction Price Per Share: 2.49
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 241930
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: S
Action: Sale
Quantity: 8514
Price: 87.67
Following holdings: 233,416
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 8514
transaction Price Per Share: 87.67
id: F2
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 233416
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: S
Action: Sale
Quantity: 1677
Price: 89.20
Following holdings: 231,739
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 1677
transaction Price Per Share: 89.20
id: F3
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 231739
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: S
Action: Sale
Quantity: 7623
Price: 89.74
Following holdings: 224,116
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 7623
transaction Price Per Share: 89.74
id: F4
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 224116
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: S
Action: Sale
Quantity: 5101
Price: 90.98
Following holdings: 219,015
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 5101
transaction Price Per Share: 90.98
id: F5
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 219015
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: S
Action: Sale
Quantity: 2985
Price: 91.76
Following holdings: 216,030
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2985
transaction Price Per Share: 91.76
id: F6
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 216030
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: S
Action: Sale
Quantity: 2000
Price: 92.66
Following holdings: 214,030
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2000
transaction Price Per Share: 92.66
id: F7
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 214030
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: S
Action: Sale
Quantity: 2000
Price: 93.71
Following holdings: 212,030
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2000
transaction Price Per Share: 93.71
id: F8
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 212030
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: S
Action: Sale
Quantity: 100
Price: 94.91
Following holdings: 211,930
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 100
transaction Price Per Share: 94.91
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 211930
direct Or Indirect Ownership: D
nature Of Ownership:

Stock Option (Right to Buy) (derivative)

Owner: BORGESON JOHN A.
Date: 2026-10-21
Code: M
Action: Exercise or conversion
Quantity: 30000
Price: 0
Following holdings: 304,500
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Stock Option (Right to Buy)
conversion Or Exercise Price: 2.49
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
transaction Shares: 30000
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F9
expiration Date: 2034-08-04
underlying Security Title: Common Stock
underlying Security Shares: 30000
shares Owned Following Transaction: 304500
direct Or Indirect Ownership: D
nature Of Ownership:

Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.
BORGESON JOHN A.: Chief Financial Officer.
The filing reports a Rule 10b5-1 trading plan.
F1: The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on September 29, 2025.
F2: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $87.27 to $88.13, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in these footnotes.
F3: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $88.35 to $89.345, inclusive.
F4: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $89.35 to $90.33, inclusive.
F5: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $90.35 to $91.345, inclusive.
F6: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $91.35 to $92.31, inclusive.
F7: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $92.40 to $93.21, inclusive.
F8: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $93.41 to $94.08, inclusive.
F9: One-forty-eighth (1/48th) of the shares vest one month after July 1, 2024; the balance of the shares vest in a series of forty-seven (47) successive equal monthly installments thereafter, subject to the Reporting Person's Continuous Service (as defined in the 2018 Equity Incentive Plan) as of each vesting date.

Original sources

SEC ownership filing

Prepared automatically from public filing data. Report a correction.

Security

Owner

Date

Code

Action

Quantity

Price

Following holdings

Reporting delay

Filed terms and references

Common Stock

BORGESON JOHN A.

2026-10-21

Exercise or conversion

30000

2.49

241,930

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
transaction Shares: 30000
transaction Price Per Share: 2.49
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 241930
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

BORGESON JOHN A.

2026-10-21

Sale

8514

87.67

233,416

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 8514
transaction Price Per Share: 87.67
id: F2
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 233416
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

BORGESON JOHN A.

2026-10-21

Sale

1677

89.20

231,739

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 1677
transaction Price Per Share: 89.20
id: F3
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 231739
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

BORGESON JOHN A.

2026-10-21

Sale

7623

89.74

224,116

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 7623
transaction Price Per Share: 89.74
id: F4
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 224116
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

BORGESON JOHN A.

2026-10-21

Sale

5101

90.98

219,015

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 5101
transaction Price Per Share: 90.98
id: F5
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 219015
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

BORGESON JOHN A.

2026-10-21

Sale

2985

91.76

216,030

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2985
transaction Price Per Share: 91.76
id: F6
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 216030
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

BORGESON JOHN A.

2026-10-21

Sale

2000

92.66

214,030

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2000
transaction Price Per Share: 92.66
id: F7
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 214030
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

BORGESON JOHN A.

2026-10-21

Sale

2000

93.71

212,030

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2000
transaction Price Per Share: 93.71
id: F8
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 212030
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

BORGESON JOHN A.

2026-10-21

Sale

100

94.91

211,930

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 100
transaction Price Per Share: 94.91
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 211930
direct Or Indirect Ownership: D
nature Of Ownership:

Stock Option (Right to Buy) (derivative)

BORGESON JOHN A.

2026-10-21

Exercise or conversion

30000

304,500

2 days

Filed terms

security Title: Stock Option (Right to Buy)
conversion Or Exercise Price: 2.49
transaction Date: 2026-10-21
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
transaction Shares: 30000
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F9
expiration Date: 2034-08-04
underlying Security Title: Common Stock
underlying Security Shares: 30000
shares Owned Following Transaction: 304500
direct Or Indirect Ownership: D
nature Of Ownership:

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.

BORGESON JOHN A.: Chief Financial Officer.

The filing reports a Rule 10b5-1 trading plan.

F1: The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on September 29, 2025.

F2: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $87.27 to $88.13, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in these footnotes.

F3: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $88.35 to $89.345, inclusive.

F4: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $89.35 to $90.33, inclusive.

F5: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $90.35 to $91.345, inclusive.

F6: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $91.35 to $92.31, inclusive.

F7: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $92.40 to $93.21, inclusive.

F8: The price reported in Column 4 is a weighted-average price (rounded to two decimal places). The shares were sold in multiple transactions ranging from $93.41 to $94.08, inclusive.

F9: One-forty-eighth (1/48th) of the shares vest one month after July 1, 2024; the balance of the shares vest in a series of forty-seven (47) successive equal monthly installments thereafter, subject to the Reporting Person's Continuous Service (as defined in the 2018 Equity Incentive Plan) as of each vesting date.