Insider Transactions Reported by 9 Insiders of Kodiak Sciences Inc.

Symbol: KOD on Nasdaq
Location: Palo Alto, CA

Key facts

KOD - Kodiak Sciences Inc. has 9 insiders with reported activity on this page.
Net insider value flow over the last year: +$58,799,880.
Recent transaction rows are available for direct filing-level review.

Change

Buy value: $60,000,008; sell value: $1,200,128.
Net share flow: +2,577,973.

Research use

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to buying over the last 12 months. Net value: +$58,799,880.

Buys

$60,000,008

Shares: 2,608,696

Insiders: 1

Sells

$1,200,128

Shares: 30,723

Insiders: 1

Net

+$58,799,880

Shares: +2,577,973

Insiders: 0

Window (months)	Buy shares	Sell shares	Buy $	Sell $	Net $
0-3	0	30,000	$0	$1,197,488	-$1,197,488
3-6	2,608,696	0	$60,000,008	$0	+$60,000,008
6-9	0	0	$0	$0	$0
9-12	0	723	$0	$2,640	-$2,640

Kodiak Sciences Inc. executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
BAKER BROS. ADVISORS LP	Director, 10%+ Owner	$422,251,756	+$60,000,008	+17%	Filing P/S	18 Dec 2025
Victor Perlroth	Chairman and CEO, Director	$66,979,242			Mixed	25 Mar 2026
John A. Borgeson	Chief Financial Officer	$8,084,246	-$1,200,128	-13%	Mixed	15 Apr 2026
Bassil I. Dahiyat	Director				Mixed	30 Jun 2025
Charles A. Bancroft	Director				Mixed	30 Jun 2025
Taiyin Yang	Director				Mixed	30 Jun 2025
Jason Ehrlich	Chief Medical Officer and Chief Development Officer				Mixed	24 Jun 2023
Richard S. Levy	Director				Mixed	30 Jun 2025
Robert Profusek	Director				Mixed	30 Jun 2025

Top shareholders of Kodiak Sciences Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BAKER BROS. ADVISORS LP	13F 13D/G 3/4/5	Company · Director, 10%+ Owner	33% from 13D/G	19,919,186	$759,319,370	—	31 Mar 2026	13F 13D/G 3/4/5
Victor Perlroth	13D/G 3/4/5	D. VICTOR PERLROTH, M.D. · Chairman and CEO, Director	9.9%	6,504,427	$176,074,839	+$9,203,800	31 Dec 2025	13D/G 3/4/5
BlackRock, Inc.	13F 13D/G	Company	5.3% from 13D/G	3,935,302	$150,013,713	—	31 Mar 2026	13F 13D/G
Sirenia Capital Management LP	13D/G	—	5.7%	3,495,000	$146,615,250	$0	31 Mar 2026	13D/G
STATE STREET CORP	13F	Company	3.7%	2,250,920	$85,805,070	—	31 Mar 2026	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	3.3%	2,039,350	$77,741,000	—	31 Mar 2026	13F
BRAIDWELL LP	13F	Company	3%	1,818,665	$69,327,510	—	31 Mar 2026	13F
VANGUARD CAPITAL MANAGEMENT LLC	13F	Company	2.8%	1,717,076	$65,454,937	—	31 Mar 2026	13F
GOLDMAN SACHS GROUP INC	13F	Company	2.8%	1,689,003	$64,384,794	—	31 Mar 2026	13F
RTW INVESTMENTS, LP	13F	Company	2.4%	1,487,934	$56,720,044	—	31 Mar 2026	13F
TCG Crossover Management, LLC	13F	Company	2.4%	1,445,538	$55,103,908	—	31 Mar 2026	13F
Boxer Capital Management, LLC	13F	Company	2.2%	1,361,000	$51,881,320	—	31 Mar 2026	13F
JANUS HENDERSON GROUP PLC	13F	Company	2.2%	1,325,457	$50,539,675	—	31 Mar 2026	13F
ICONIQ Capital, LLC	13F	Company	2.1%	1,266,563	$48,281,382	—	31 Mar 2026	13F
Ikarian Capital, LLC	13F	Company	2.1%	1,265,795	$48,252,106	—	31 Mar 2026	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.6%	1,000,411	$38,143,086	—	31 Mar 2026	13F
SILVERARC CAPITAL MANAGEMENT, LLC	13F	Company	1.6%	991,930	$37,812,372	—	31 Mar 2026	13F
CITADEL ADVISORS LLC	13F	Company	1.4%	870,788	$33,194,439	—	31 Mar 2026	13F
T. Rowe Price Investment Management, Inc.	13F	Company	1.4%	836,944	$31,905,000	—	31 Mar 2026	13F
BALYASNY ASSET MANAGEMENT L.P.	13F	Company	1.2%	726,547	$27,695,972	—	31 Mar 2026	13F
Board of Trustees of The Leland Stanford Junior University	13F	Company	1.1%	691,767	$26,370,158	—	31 Mar 2026	13F
Artisan Partners Limited Partnership	13F	Company	1.1%	690,322	$26,315,075	—	31 Mar 2026	13F
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F	Company	0.94%	575,000	$21,919,000	—	31 Mar 2026	13F
MORGAN STANLEY	13F	Company	0.84%	515,864	$19,664,737	—	31 Mar 2026	13F
Point72 Asset Management, L.P.	13F 13D/G	Company	1% from 13D/G	459,723	$17,524,641	—	31 Mar 2026	13F 13D/G
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.71%	436,329	$16,632,861	—	31 Mar 2026	13F
NORTHERN TRUST CORP	13F	Company	0.64%	391,349	$14,918,223	—	31 Mar 2026	13F
Squadron Capital Management LLC	13F	Company	0.62%	380,000	$14,485,600	—	31 Mar 2026	13F
VANGUARD PORTFOLIO MANAGEMENT LLC	13F	Company	0.6%	365,051	$13,915,744	—	31 Mar 2026	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.57%	349,803	$13,334,490	—	31 Mar 2026	13F
BOOTHBAY FUND MANAGEMENT, LLC	13F	Company	0.54%	328,670	$12,528,900	—	31 Mar 2026	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.51%	315,400	$12,007,550	—	31 Mar 2026	13F
Invesco Ltd.	13F	Company	0.5%	305,074	$11,629,420	—	31 Mar 2026	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.49%	300,356	$11,449,571	—	31 Mar 2026	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.48%	294,300	$11,218,716	—	31 Mar 2026	13F
BOONE CAPITAL MANAGEMENT LLC	13F	Company	0.46%	281,332	$10,724,376	—	31 Mar 2026	13F
VANGUARD FIDUCIARY TRUST CO	13F	Company	0.42%	258,128	$9,839,839	—	31 Mar 2026	13F
D. E. Shaw & Co., Inc.	13F	Company	0.38%	229,955	$8,765,884	—	31 Mar 2026	13F
John A. Borgeson	3/4/5	Chief Financial Officer	— mixed-class rows	241,930 mixed-class rows	$8,084,246	-$1,200,128	15 Apr 2026	3/4/5
FEDERATED HERMES, INC.	13F	Company	0.34%	210,210	$8,013,205	—	31 Mar 2026	13F
DIADEMA PARTNERS LP	13F	Company	0.31%	192,962	$7,355,711	—	31 Mar 2026	13F
Atom Investors LP	13F	Company	0.31%	190,773	$7,272,267	—	31 Mar 2026	13F
FMR LLC	13F	Company	0.3%	183,919	$7,011,001	—	31 Mar 2026	13F
TD ASSET MANAGEMENT INC	13F	Company	0.26%	162,298	$6,186,800	—	31 Mar 2026	13F
UBS Group AG	13F	Company	0.25%	153,166	$5,838,687	—	31 Mar 2026	13F
ALGERT GLOBAL LLC	13F	Company	0.24%	147,930	$5,639,000	—	31 Mar 2026	13F
Bruce & Co., Inc.	13F	Company	0.24%	145,000	$5,527,400	—	31 Mar 2026	13F
Trexquant Investment LP	13F	Company	0.2%	123,402	$4,704,084	—	31 Mar 2026	13F
MANUFACTURERS LIFE INSURANCE COMPANY, THE	13F	Company	0.2%	120,629	$4,598,377	—	31 Mar 2026	13F
SPHERA FUNDS MANAGEMENT LTD.	13F	Company	0.19%	114,796	$4,376,024	—	31 Mar 2026	13F

Recent Insider Transactions by Companies or Individuals for Kodiak Sciences Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
John A. Borgeson	KOD	Common Stock	Options Exercise	15.6%			28,614	211,930	15 Apr 2026	Direct
John A. Borgeson	KOD	Stock Option (Right to Buy)	Options Exercise	-48.8%			-28,614	30,000	15 Apr 2026	Direct
John A. Borgeson	KOD	Common Stock	Sale	-14.1%	$1,197,488	$39.92	-30,000	183,316	02 Apr 2026	Direct
John A. Borgeson	KOD	Common Stock	Options Exercise	16.4%			30,000	213,316	02 Apr 2026	Direct
John A. Borgeson	KOD	Stock Option (Right to Buy)	Options Exercise	-33.8%			-30,000	58,614	02 Apr 2026	Direct
Victor Perlroth	KOD	Common Stock	Options Exercise	14.3%			300,000	2,395,538	25 Mar 2026	Direct
Victor Perlroth	KOD	Stock Option (Right to Buy)	Options Exercise	-100%			-300,000	0	25 Mar 2026	Direct
Victor Perlroth	KOD	Stock Option (Right to Buy)	Award				175,000	175,000	18 Mar 2026	Direct
D. Victor Perlroth	KOD	Common Stock	Gift	-0.59%			-12,500	2,095,538	26 Dec 2025	Direct
Baker Bros. Advisors Lp	KOD	Common Stock	Purchase	16.6%	$60,000,008	$23.00	2,608,696	18,358,772	18 Dec 2025	See Footnotes
John A. Borgeson	KOD	Stock Option (Right to Buy)	Award				250,000	250,000	04 Jul 2025	Direct
Victor Perlroth	KOD	Stock Option (Right to Buy)	Award				340,000	340,000	04 Jul 2025	Direct
Baker Bros. Advisors Lp	KOD	Non- Qualified Stock Options (right to buy)	Award				80,000	40,000	30 Jun 2025	See Footnotes
Robert Profusek	KOD	Stock Option (Right to Buy)	Award				40,000	40,000	30 Jun 2025	Direct
Taiyin Yang	KOD	Stock Option (Right to Buy)	Award				40,000	40,000	30 Jun 2025	Direct
Richard S. Levy	KOD	Stock Option (Right to Buy)	Award				40,000	40,000	30 Jun 2025	Direct
Charles A. Bancroft	KOD	Stock Option (Right to Buy)	Award				40,000	40,000	30 Jun 2025	Direct
Bassil I. Dahiyat	KOD	Stock Option (Right to Buy)	Award				40,000	40,000	30 Jun 2025	Direct
John A. Borgeson	KOD	Common Stock	Sale	-0.39%	$2,640	$3.65	-723	183,316	17 Jun 2025	Direct
John A. Borgeson	KOD	Common Stock	Options Exercise	1.03%			1,875	184,039	15 Jun 2025	Direct
John A. Borgeson	KOD	Restricted Stock Units	Options Exercise	-100%			-1,875	0	15 Jun 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.