Foresite Capital Management IV, LLC - 04 Feb 2026 Form 4 Insider Report for Eikon Therapeutics, Inc. (EIKN)

Role
10%+ Owner
Signature
FORESITE CAPITAL MANAGEMENT IV, LLC, By: /s/ James B. Tananbaum, Managing Member
Issuer symbol
EIKN
Transactions as of
04 Feb 2026
Net transactions value
+$999,990
Form type
4
Filing time
06 Feb 2026, 19:37:49 UTC
Previous filing
05 Apr 2024
SEC
View on sec.gov

Reporting Owners (8)

Name Relationship Address Signature Signature date CIK
Foresite Capital Management IV, LLC 10%+ Owner C/O FORESITE CAPITAL MANAGEMENT, 9200 SUNSET BOULEVARD, SUITE 515, WEST HOLLYWOOD FORESITE CAPITAL MANAGEMENT IV, LLC, By: /s/ James B. Tananbaum, Managing Member 06 Feb 2026 0001704132
Foresite Capital Fund IV, L.P. 10%+ Owner C/O FORESITE CAPITAL MANAGEMENT, 9200 SUNSET BOULEVARD, SUITE 515, WEST HOLLYWOOD FORESITE CAPITAL FUND IV, L.P., By: Foresite Capital Management IV, LLC, Its: General Partner, By: /s/ James B. Tananbaum, Managing Member 06 Feb 2026 0001704131
Foresite Capital Management V, LLC 10%+ Owner C/O FORESITE CAPITAL MANAGEMENT, 9200 SUNSET BOULEVARD, SUITE 515, WEST HOLLYWOOD FORESITE CAPITAL MANAGEMENT V, LLC, By: /s/ James B. Tananbaum, Managing Member 06 Feb 2026 0001792206
Foresite Capital Fund V, L.P. 10%+ Owner C/O FORESITE CAPITAL MANAGEMENT, 9200 SUNSET BOULEVARD, SUITE 515, WEST HOLLYWOOD FORESITE CAPITAL FUND V, L.P., By: Foresite Capital Management V, LLC, Its: General Partner, By: /s/ James B. Tananbaum, Managing Member 06 Feb 2026 0001792204
Foresite Capital Opportunity Management V, LLC 10%+ Owner C/O FORESITE CAPITAL MANAGEMENT, 9200 SUNSET BOULEVARD, SUITE 515, WEST HOLLYWOOD FORESITE CAPITAL OPPORTUNITY MANAGEMENT V, LLC, By: /s/ James B. Tananbaum, Managing Member 06 Feb 2026 0001792207
Foresite Capital Opportunity Fund V, L.P. 10%+ Owner C/O FORESITE CAPITAL MANAGEMENT, 9200 SUNSET BOULEVARD, SUITE 515, WEST HOLLYWOOD FORESITE CAPITAL OPPORTUNITY FUND V, L.P., By: Foresite Capital Opportunity Management V, LLC, Its: General Partner, By: /s/ James B. Tananbaum, Managing Member 06 Feb 2026 0001792205
Foresite Capital VI-A Management, LLC 10%+ Owner C/O FORESITE CAPITAL MANAGEMENT, 9200 SUNSET BOULEVARD, SUITE 515, WEST HOLLYWOOD FORESITE CAPITAL VI-A MANAGEMENT, LLC, By: /s/ James B. Tananbaum, Managing Member 06 Feb 2026 0001899218
Foresite Capital VI-A, LLC 10%+ Owner C/O FORESITE CAPITAL MANAGEMENT, 9200 SUNSET BOULEVARD, SUITE 515, WEST HOLLYWOOD FORESITE CAPITAL VI-A, LLC, By: Foresite Capital VI-A Management, LLC, Its: Managing Member, By: /s/ James B. Tananbaum, Managing Member 06 Feb 2026 0001899120

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction EIKN Common Stock Conversion of derivative security $0 +1,340,878 $0.000000 1,340,878 04 Feb 2026 See Footnote F1, F2
transaction EIKN Common Stock Conversion of derivative security $0 +335,521 +25% $0.000000 1,676,399 04 Feb 2026 See Footnote F1, F2
transaction EIKN Common Stock Conversion of derivative security $0 +37,855 +2.3% $0.000000 1,714,254 04 Feb 2026 See Footnote F1, F2
transaction EIKN Common Stock Conversion of derivative security $0 +229,428 +13% $0.000000 1,943,682 04 Feb 2026 See Footnote F1, F2
transaction EIKN Common Stock Conversion of derivative security $0 +697,885 $0.000000 697,885 04 Feb 2026 See Footnote F1, F3
transaction EIKN Common Stock Conversion of derivative security $0 +37,855 +5.4% $0.000000 735,740 04 Feb 2026 See Footnote F1, F3
transaction EIKN Common Stock Conversion of derivative security $0 +1,626 +0.22% $0.000000 737,366 04 Feb 2026 See Footnote F1, F3
transaction EIKN Common Stock Conversion of derivative security $0 +67,207 +9.1% $0.000000 804,573 04 Feb 2026 See Footnote F1, F3
transaction EIKN Common Stock Conversion of derivative security $0 +458,855 +57% $0.000000 1,263,428 04 Feb 2026 See Footnote F1, F3
transaction EIKN Common Stock Conversion of derivative security $0 +348,942 $0.000000 348,942 04 Feb 2026 See Footnote F1, F4
transaction EIKN Common Stock Conversion of derivative security $0 +37,855 +11% $0.000000 386,797 04 Feb 2026 See Footnote F1, F4
transaction EIKN Common Stock Conversion of derivative security $0 +922 +0.24% $0.000000 387,719 04 Feb 2026 See Footnote F1, F4
transaction EIKN Common Stock Conversion of derivative security $0 +38,133 +9.8% $0.000000 425,852 04 Feb 2026 See Footnote F1, F4
transaction EIKN Common Stock Conversion of derivative security $0 +408,725 $0.000000 408,725 04 Feb 2026 See Footnote F1, F5
transaction EIKN Common Stock Purchase $999,990 +55,555 +4.4% $18.00 1,318,983 04 Feb 2026 See Footnote F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction EIKN Series A Preferred Stock Conversion of derivative security $0 -10,000,000 -100% $0.000000 0 04 Feb 2026 Common Stock 1,340,878 See Footnote F1, F2
transaction EIKN Series A-1 Preferred Stock Conversion of derivative security $0 -2,502,252 -100% $0.000000 0 04 Feb 2026 Common Stock 335,521 See Footnote F1, F2
transaction EIKN Series A-1 Preferred Stock Conversion of derivative security $0 -5,204,684 -100% $0.000000 0 04 Feb 2026 Common Stock 697,885 See Footnote F1, F3
transaction EIKN Series A-1 Preferred Stock Conversion of derivative security $0 -2,602,342 -100% $0.000000 0 04 Feb 2026 Common Stock 348,942 See Footnote F1, F4
transaction EIKN Series B-1 Preferred Stock Conversion of derivative security $0 -282,317 -100% $0.000000 0 04 Feb 2026 Common Stock 37,855 See Footnote F1, F2
transaction EIKN Series B-1 Preferred Stock Conversion of derivative security $0 -282,317 -100% $0.000000 0 04 Feb 2026 Common Stock 37,855 See Footnote F1, F3
transaction EIKN Series B-1 Preferred Stock Conversion of derivative security $0 -282,317 -100% $0.000000 0 04 Feb 2026 Common Stock 37,855 See Footnote F1, F4
transaction EIKN Series B-1 Preferred Stock Conversion of derivative security $0 -3,048,192 -100% $0.000000 0 04 Feb 2026 Common Stock 408,725 See Footnote F1, F5
transaction EIKN Series C Preferred Stock Conversion of derivative security $0 -12,123 -100% $0.000000 0 04 Feb 2026 Common Stock 1,626 See Footnote F1, F3
transaction EIKN Series C Preferred Stock Conversion of derivative security $0 -6,878 -100% $0.000000 0 04 Feb 2026 Common Stock 922 See Footnote F1, F4
transaction EIKN Series C-1 Preferred Stock Conversion of derivative security $0 -501,219 -100% $0.000000 0 04 Feb 2026 Common Stock 67,207 See Footnote F1, F3
transaction EIKN Series C-1 Preferred Stock Conversion of derivative security $0 -284,392 -100% $0.000000 0 04 Feb 2026 Common Stock 38,133 See Footnote F1, F4
transaction EIKN Series D Preferred Stock Conversion of derivative security $0 -1,711,025 -100% $0.000000 0 04 Feb 2026 Common Stock 229,428 See Footnote F1, F2
transaction EIKN Series D Preferred Stock Conversion of derivative security $0 -3,422,051 -100% $0.000000 0 04 Feb 2026 Common Stock 458,855 See Footnote F1, F3
holding EIKN Warrants 17,092 04 Feb 2026 Common Stock 17,092 $43.59 See Footnote F2
holding EIKN Warrants 34,185 04 Feb 2026 Common Stock 34,185 $43.59 See Footnote F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Foresite Capital Management IV, LLC is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series C Preferred Stock, Series C-1 Preferred Stock and Series D Preferred Stock automatically converted into approximately 0.1340878 shares of Common Stock and has no expiration date.
F2 The shares are held of record by Foresite Capital Fund IV, L.P. ("Fund IV"). Foresite Capital Management IV, LLC ("FCM IV") is the general partner of Fund IV and may be deemed to have sole voting and dispositive power over such shares. James B. Tananbaum ("Tananbaum"), the managing member of FCM IV, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, other than Fund IV, disclaims beneficial ownership of the shares held by Fund IV, except to the extent of such person's pecuniary interest in such securities.
F3 The shares are held of record by Foresite Capital Fund V, L.P. ("Fund V"). Foresite Capital Management V, LLC ("FCM V") is the general partner of Fund V and may be deemed to have sole voting and dispositive power over such shares. James B. Tananbaum ("Tananbaum"), the managing member of FCM V, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, other than Fund V, disclaims beneficial ownership of the shares held by Fund V, except to the extent of such person's pecuniary interest in such securities.
F4 The shares are held of record by Foresite Capital Opportunity Fund V, L.P. ("Opportunity Fund V"). Foresite Capital Opportunity Management V, LLC ("FCOM V") is the general partner of Opportunity Fund V and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FCOM V, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Opportunity Fund V, disclaims beneficial ownership of the shares held by Opportunity Fund V, except to the extent of such person's pecuniary interest in such securities.
F5 The shares are held of record by Foresite Capital VI-A, LLC ("Fund VI-A"). Foresite Capital VI-A Management, LLC ("FC VI-A Management") is the general partner of Fund VI-A and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FC VI-A Management, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Fund VI-A, disclaims beneficial ownership of the shares held by Fund VI-A, except to the extent of such person's pecuniary interest in such securities.