# EDGAR Filing Document

**Accession Number:** 0002123613
**File Stem:** 0001193125-26-282713
**Filing Date:** 2026-6
**Character Count:** 21749
**Document Hash:** 2c32d218d154a68407ba65392c748c75
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-282713.hdr.sgml**: 20260625

**ACCESSION NUMBER**: 0001193125-26-282713

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260625

**DATE AS OF CHANGE**: 20260625

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Kardigan, Inc.
- **CENTRAL INDEX KEY:** 0002123613
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 932994203
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95771
- **FILM NUMBER:** 261121800

**BUSINESS ADDRESS:**
- **STREET 1:** C/O KARDIGAN, INC.
- **STREET 2:** 131 OYSTER POINT BLVD., SECOND FLOOR
- **CITY:** SOUTH SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94080
- **BUSINESS PHONE:** (415) 573-3220

**MAIL ADDRESS:**
- **STREET 1:** C/O KARDIGAN, INC.
- **STREET 2:** 131 OYSTER POINT BLVD., SECOND FLOOR
- **CITY:** SOUTH SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94080
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PERCEPTIVE ADVISORS LLC
- **CENTRAL INDEX KEY:** 0001224962

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**BUSINESS ADDRESS:**
- **STREET 1:** 51 ASTOR PLACE, 10TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10003
- **BUSINESS PHONE:** 646-205-5300

**MAIL ADDRESS:**
- **STREET 1:** 51 ASTOR PLACE, 10TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10003

## Ex-99

Schedule A

The following sets forth the name, address, principal occupation, citizenship and beneficial ownership of the shares of Common Stock (to the extent not pursuant to Item 5(a)) of each director of the Master Fund (to the extent not set forth in Item 2).

---

| | | | |
|:---|:---|:---|:---|
| **Master Fund** | **Master Fund** | **Master Fund** | **Master Fund** |
| **Name and Citizenship** | **Position** | **Principal Business Address** | **Beneficial Ownership of**<br>**Shares of Common Stock** |
| Scott Dakers<br>(United Kingdom) | Director | c/o Elian Fiduciary Services (Cayman) Limited<br>190 Elgin Avenue, George Town<br>Grand Cayman KY1-9007<br>Cayman Islands |  |
| James Nicholas<br>(United States) | Director | c/o GenesisPoint LLC<br>30 Old Kings Highway S<br>Darien, CT 06820 |  |

---

------

## Exhibit 99.1

EXHIBIT 99.1

AGREEMENT

The persons below hereby agree that the Schedule 13D to which this agreement is attached as an exhibit, as well as all future amendments to such Schedule 13D, shall be filed on behalf of each of them. This agreement is intended to satisfy the requirements of Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934.

Date: June 25, 2026

PERCEPTIVE ADVISORS LLC

By: <u>/s/ Joseph Edelman</u> 

Name: Joseph Edelman

Title: Managing Member

/s/ Joseph Edelman

JOSEPH EDELMAN

PERCEPTIVE LIFE SCIENCES MASTER FUND, LTD.

By: <u>/s/ Joseph Edelman</u> 

Name: Joseph Edelman

Title: Managing Member

PERCEPTIVE CAPITAL SOLUTIONS HOLDINGS LP

By: <u>/s/ Joseph Edelman</u> 

Name: Joseph Edelman

Title: Managing Member

------

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**Kardigan, Inc.**

*(Name of Issuer)*

**Common Stock, par value $0.00001 per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Perceptive Advisors LLC**<br>Alexander Rakitin, 51 Astor Place<br>10th Floor<br>New York NY 10003<br>646-205-5345

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**06/18/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Perceptive Advisors LLC** | Name of reporting person<br>**Perceptive Advisors LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**8254144.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**8254144.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**8254144.00** | Aggregate amount beneficially owned by each reporting person<br>**8254144.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**8.9%** | Percent of class represented by amount in Row (11)<br>**8.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

**Comment for Reporting Person:** The securities reported on this page consist of (i) 2,460,195 shares of Common Stock held directly by Perceptive Life Sciences Master Fund, Ltd. (the "Master Fund"); (ii) 5,740,466 shares of Common Stock held directly by Perceptive Capital Solutions Holdings LP ("PCS Holdings"); and (iii) stock options issued to Douglas Giordano ("Mr. Giordano") in connection with his service on the Issuer's board of directors, currently exercisable or exercisable within 60 days for 53,483 shares of Common Stock, with respect to which Perceptive Advisors LLC ("Perceptive Advisors") has the right to receive the director compensation provided in respect of Mr. Giordano's board service through a partial management fee offset. Perceptive Advisors serves as the investment manager to the Master Fund. Perceptive Capital Solutions Advisors LP ("PCS Advisors"), a relying adviser of Perceptive Advisors, serves as the investment manager to PCS Holdings, and Perceptive Capital Solutions GP LLC ("PCS GP") serves as the general partner of PCS Holdings. Joseph Edelman ("Mr. Edelman") is the managing member of each of Perceptive Advisors and PCS GP.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Joseph Edelman** | Name of reporting person<br>**Joseph Edelman** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**8254144.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**8254144.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**8254144.00** | Aggregate amount beneficially owned by each reporting person<br>**8254144.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**8.9%** | Percent of class represented by amount in Row (11)<br>**8.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** The securities reported on this page consist of (i) 2,460,195 shares of Common Stock held directly by the Master Fund (ii) 5,740,466 shares of Common Stock held directly by PCS Holdings; and (iii) stock options issued to Mr. Giordano in connection with his service on the Issuer's board of directors, currently exercisable or exercisable within 60 days for 53,483 shares of Common Stock, with respect to which Perceptive Advisors has the right to receive the director compensation provided in respect of Mr. Giordano's board service through a partial management fee offset. Perceptive Advisors serves as the investment manager to the Master Fund. PCS Advisors, a relying adviser of Perceptive Advisors, serves as the investment manager to PCS Holdings, and PCS GP serves as the general partner of PCS Holdings. Mr. Edelman is the managing member of each of Perceptive Advisors and PCS GP.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Perceptive Life Sciences Master Fund, Ltd.** | Name of reporting person<br>**Perceptive Life Sciences Master Fund, Ltd.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**2476240.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**2476240.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2476240.00** | Aggregate amount beneficially owned by each reporting person<br>**2476240.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**2.7%** | Percent of class represented by amount in Row (11)<br>**2.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** The securities reported on this page consist of (i) 2,460,195 shares of Common Stock held directly by the Master Fund; and (ii) stock options issued to Mr. Giordano in connection with his service on the Issuer's board of directors, currently exercisable or exercisable within 60 days for 16,045 shares of Common Stock, with respect to which Perceptive Advisors has the right to receive the director compensation provided in respect of Mr. Giordano's board service through a partial management fee offset. Perceptive Advisors serves as the investment manager to the Master Fund. Mr. Edelman is the managing member of Perceptive Advisors.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Perceptive Capital Solutions Holdings LP** | Name of reporting person<br>**Perceptive Capital Solutions Holdings LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**5777904.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**5777904.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**5777904.00** | Aggregate amount beneficially owned by each reporting person<br>**5777904.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**6.2%** | Percent of class represented by amount in Row (11)<br>**6.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** The securities reported on this page consist of (i) 5,740,466 shares of Common Stock held directly by PCS Holdings; and (ii) stock options issued to Mr. Giordano in connection with his service on the Issuer's board of directors, currently exercisable or exercisable within 60 days for 37,438 shares of Common Stock, with respect to which Perceptive Advisors has the right to receive the director compensation provided in respect of Mr. Giordano's board service through a partial management fee offset. PCS Advisors, a relying adviser of Perceptive Advisors, serves as the investment manager to PCS Holdings, and PCS GP serves as the general partner of PCS Holdings. Mr. Edelman is the managing member of each of Perceptive Advisors and PCS GP.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $0.00001 per share

**(b) Name of Issuer:**
Kardigan, Inc.

**(c) Address of Issuer's Principal Executive Offices:**
506 Carnegie Center Drive, Suite 201, Princeton, NJ, 08540

**Item 4. Purpose of Transaction**

The Reporting Persons acquired the shares of Common Stock set forth in Item 5(c) and hold their shares of Common Stock for investment purposes. Douglas Giordano serves as a member of the Issuer's board of directors, and is a Managing Director at Perceptive Advisors.

Each Reporting Person expects to continuously review such person's investment in the Issuer and, depending on various factors including but not limited to, the price of the shares of Common Stock, the terms and conditions of the transaction, prevailing market conditions and such other considerations as such Reporting Person deems relevant, may at any time or from time to time, and subject to any required regulatory approvals, acquire additional shares of Common Stock, preferred stock or other securities convertible into or exercisable or exchangeable for Common Stock from time to time on the open market, in privately- negotiated transactions, directly from the Issuer, or upon the exercise or conversion of securities convertible into or exercisable or exchangeable for Common Stock.

Each Reporting Person also may, at any time, subject to compliance with applicable securities laws and regulatory requirements dispose or distribute some or all of its or his Common Stock or such other securities as it or he owns or may subsequently acquire depending on various factors, including but not limited to, the price of the shares, the terms and conditions of the transaction and prevailing market conditions, as well as the liquidity and diversification objectives.

Consistent with their investment intent, each Reporting Person may from time to time discuss with the Issuer's management, directors, other shareholders and others, the Issuer's performance, business, strategic direction, capital structure, product development program, prospects and management, as well as various ways of maximizing stockholder value, which may or may not include extraordinary transactions.

Except as indicated herein, no Reporting Person, as a stockholder of the Issuer, has any plans or proposals that relates or would result in any of the transactions or other matters specified in clauses (a) through (j) of Item 4 of Schedule 13D. Each Reporting Person may, at any time and from time to time, review or reconsider its or his position and/or change its or his purpose and/or formulate plans or proposals with respect thereto.

The information set forth in Item 6 below is incorporated by reference to this Item 4.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The information set forth in rows 11 and 13 of the cover pages to this Schedule 13D is incorporated by reference. The percentages set forth in row 13 are based on 93,089,121 shares of Common Stock outstanding, as reported by the Issuer in its prospectus filed pursuant to Rule 424(b)(4) with the Securities and Exchange Commission on June 18, 2026, giving effect to the underwriters' exercise of their over-allotment option, and assumes the exercise of vested stock options issued to Douglas Giordano in connection with his service on the Issuer's board of directors.

**(b)**
The information set forth in rows 7 through 10 of the cover pages to this Schedule 13D is incorporated by reference. Douglas Giordano, a managing director at Perceptive Advisors, holds stock options for a total of 113,513 shares of Common Stock, of which 53,483 are currently exercisable, or exercisable within 60 days. Perceptive Advisors has the right to receive the director compensation provided in respect of Mr. Giordano's board service through a partial management fee offset.

**(c)**
On June 17, 2026 in connection with the Issuer's initial public offering (the "IPO"), shares of the Issuer's Series A Convertible Redeemable Preferred Stock held by the Reporting Persons were automatically converted into 8,200,661 shares of Common Stock. Except as described in this Item 5(c), none of the Reporting Persons has effected any transaction in shares of Common Stock in the past sixty days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Lock-up Agreement
In connection with the IPO, the Master Fund and PCS Holdings entered into a lock-up agreement (the "Lock-up Agreement") with the representatives of the several underwriters. Pursuant to the Lock-up Agreement, the Master Fund and PCS Holdings, subject to certain exceptions, agreed not to sell or otherwise transfer any shares of Common Stock or securities convertible into, exchangeable for or exercisable for Common Stock for 180 days after the date of the prospectus relating to the IPO without the prior consent of the representatives.

The foregoing summary of the Lock-up Agreement does not purport to be complete and is qualified in its entirety by reference to the Lock-up Agreement, which is filed as an exhibit hereto and incorporated by reference herein.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Perceptive Advisors LLC

**Signature:** /s/ Joseph Edelman

**Name/Title:** Joseph Edelman, Managing Member

**Date:** 06/25/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Joseph Edelman

**Signature:** /s/ Joseph Edelman

**Name/Title:** Joseph Edelman

**Date:** 06/25/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Perceptive Life Sciences Master Fund, Ltd.

**Signature:** /s/ Joseph Edelman

**Name/Title:** Joseph Edelman, Managing Member

**Date:** 06/25/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Perceptive Capital Solutions Holdings LP

**Signature:** /s/ Joseph Edelman

**Name/Title:** Joseph Edelman, Managing Member

**Date:** 06/25/2026