TPG GP A, LLC - 11 May 2026 Form 4 Insider Report for Odyssey Therapeutics, Inc. (ODTX)

Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
13 May 2026, 17:10:38 UTC
Prior SEC filing
07 May 2026
Next SEC filing
14 May 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Matthew White, Vice President, TPG GP A, LLC (8)

Key filing fact

TPG GP A, LLC filed Form 4 for Odyssey Therapeutics, Inc. (ODTX) on 13 May 2026.

Key facts

  • This page summarizes TPG GP A, LLC's Form 4 filing for Odyssey Therapeutics, Inc. (ODTX).
  • 6 reported transactions and 6 derivative rows are listed below.
  • Accepted by SEC: 13 May 2026, 17:10.

Change

  • Previous filing in this sequence was filed on 07 May 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (3)

CIK 0001903793 Primary reporting owner

TPG GP A, LLC

Relationship
Former 10% Owner
Address
C/O TPG INC., 301 COMMERCE STREET, SUITE 3300, FORT WORTH
Signature
/s/ Matthew White, Vice President, TPG GP A, LLC (8)
Signature date
13 May 2026
CIK 0001099776

COULTER JAMES G

Relationship
Former 10% Owner
Address
C/O TPG GLOBAL, LLC, 301 COMMERCE STREET, SUITE 3300, FORT WORTH
Signature
/s/ Gerald Neugebauer on behalf of James G. Coulter (8) (9)
Signature date
13 May 2026
CIK 0001366946

WINKELRIED JON

Relationship
Former 10% Owner
Address
C/O TPG GLOBAL, LLC, 301 COMMERCE STREET, SUITE 3300, FORT WORTH
Signature
/s/ Gerald Neugebauer on behalf of Jon Winkelried (8) (9)
Signature date
13 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ODTX transaction

Common Stock

Other

Transaction value
Shares
+423,111
Change %
Price
Shares after
423,111
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F3, F6, F7
ODTX transaction

Common Stock

Other

Transaction value
Shares
+423,111
Change %
Price
Shares after
423,111
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F3, F6, F7
ODTX transaction

Common Stock

Other

Transaction value
Shares
+423,111
Change %
Price
Shares after
423,111
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F3, F6, F7
ODTX transaction

Common Stock

Other

Transaction value
Shares
-2,351
Change %
-0.56%
Price
$18.00*
Shares after
420,760
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F3, F6, F7
ODTX transaction

Common Stock

Other

Transaction value
Shares
-2,351
Change %
-0.56%
Price
$18.00*
Shares after
420,760
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F3, F6, F7
ODTX transaction

Common Stock

Other

Transaction value
Shares
-2,351
Change %
-0.56%
Price
$18.00*
Shares after
420,760
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F3, F6, F7
ODTX transaction

Common Stock

Conversion of derivative security

Transaction value
Shares
+1,880,497
Change %
+447%
Price
Shares after
2,301,257
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F4, F6, F7
ODTX transaction

Common Stock

Conversion of derivative security

Transaction value
Shares
+1,880,497
Change %
+447%
Price
Shares after
2,301,257
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F4, F6, F7
ODTX transaction

Common Stock

Conversion of derivative security

Transaction value
Shares
+1,880,497
Change %
+447%
Price
Shares after
2,301,257
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F4, F6, F7
ODTX transaction

Common Stock

Purchase

Transaction value
Shares
+1,388,889
Change %
+60%
Price
$18.00*
Shares after
3,690,146
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F5, F6, F7
ODTX transaction

Common Stock

Purchase

Transaction value
Shares
+1,388,889
Change %
+60%
Price
$18.00*
Shares after
3,690,146
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F5, F6, F7
ODTX transaction

Common Stock

Purchase

Transaction value
Shares
+1,388,889
Change %
+60%
Price
$18.00*
Shares after
3,690,146
Date
11 May 2026
Ownership
See Explanation of Responses
Footnotes
F1, F2, F5, F6, F7

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ODTX transaction Derivative

Warrants (right to buy)

Other

Transaction value
Shares
-423,111
Change %
-100%
Price
Shares after
0
Date
11 May 2026
Ownership
See Explanation of Responses
Underlying class
Common Stock
Underlying amount
423,111
Exercise price
Footnotes
F1, F2, F3, F6, F7
ODTX transaction Derivative

Warrants (right to buy)

Other

Transaction value
Shares
-423,111
Change %
-100%
Price
Shares after
0
Date
11 May 2026
Ownership
See Explanation of Responses
Underlying class
Common Stock
Underlying amount
423,111
Exercise price
Footnotes
F1, F2, F3, F6, F7
ODTX transaction Derivative

Warrants (right to buy)

Other

Transaction value
Shares
-423,111
Change %
-100%
Price
Shares after
0
Date
11 May 2026
Ownership
See Explanation of Responses
Underlying class
Common Stock
Underlying amount
423,111
Exercise price
Footnotes
F1, F2, F3, F6, F7
ODTX transaction Derivative

Series D Preferred Stock

Conversion of derivative security

Transaction value
Shares
-18,272,789
Change %
-100%
Price
Shares after
0
Date
11 May 2026
Ownership
See Explanation of Responses
Underlying class
Common Stock
Underlying amount
1,880,497
Exercise price
Footnotes
F1, F2, F4, F6, F7
ODTX transaction Derivative

Series D Preferred Stock

Conversion of derivative security

Transaction value
Shares
-18,272,789
Change %
-100%
Price
Shares after
0
Date
11 May 2026
Ownership
See Explanation of Responses
Underlying class
Common Stock
Underlying amount
1,880,497
Exercise price
Footnotes
F1, F2, F4, F6, F7
ODTX transaction Derivative

Series D Preferred Stock

Conversion of derivative security

Transaction value
Shares
-18,272,789
Change %
-100%
Price
Shares after
0
Date
11 May 2026
Ownership
See Explanation of Responses
Underlying class
Common Stock
Underlying amount
1,880,497
Exercise price
Footnotes
F1, F2, F4, F6, F7
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

TPG GP A, LLC is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 7 footnotes

Footnote F1

Each of James G. Coulter and Jon Winkelried own entities that control TPG GP A, LLC (together with Messrs. Coulter and Winkelried, the "Reporting Persons"), which exercises direct or indirect control over entities that collectively hold 100% of the shares of Class B common stock (which represents a majority of the combined voting power of the common stock) of TPG Inc., which is the sole member of TPG GPCo, LLC, which is the sole member of TPG Holdings II-A, LLC, which is the general partner of TPG Operating Group II, L.P., which is the sole member of TPG Holdings I-A, LLC, which is the general partner of TPG Operating Group I, L.P., which is the sole member of TPG LSI GenPar Advisors, LLC, which is the general partner of TPG LSI GenPar, L.P., which is the sole member of TPG LSI SPV GP, LLC.

Footnote F2

TPG LSI SPV GP, LLC is the general partner of each of (i) TPG LSI Rise Orazio, L.P. ("TPG Orazio I"), which directly holds 2,301,257 shares of Common Stock ("Common Stock") of Odyssey Therapeutics, Inc. (the "Issuer"), and (ii) TPG LSI Rise Orazio II, L.P. ("TPG Orazio II" and, together with TPG Orazio I, the "TPG Funds"), which directly holds 1,388,889 shares of Common Stock.

Footnote F3

The Warrants to Purchase Common Stock (the "Warrants") directly held by TPG Orazio I were, pursuant to their terms, deemed automatically exercised, by way of a cashless net issue exercise, for shares of Common Stock upon consummation of the Issuer's initial public offering on May 11, 2026. Each Warrant had been exercisable for one share of Common Stock at an exercise price of $0.10 until the earlier of (i) June 16, 2032 and (ii) a "Corporate Transaction" (defined as the consummation of a Deemed Liquidation Event (as defined in the Issuer's Certificate of Incorporation (as defined below)) and the closing of the Issuer's initial public offering).

Footnote F4

Pursuant to the Eighth Amended and Restated Certificate of Incorporation (the "Certificate of Incorporation") of the Issuer, as amended, the shares of Series D Preferred Stock of the Issuer (the "Preferred Stock") directly held by TPG Orazio I automatically converted into shares of Common Stock upon consummation of the Issuer's initial public offering on May 11, 2026 at a conversion rate (as adjusted for a reverse stock split) equal to one share of Common Stock per 9.7170 shares of Preferred Stock. The shares of Preferred Stock had previously been convertible, at the option of the holder, at any time into shares of Common Stock.

Footnote F5

On May 11, 2026, in connection with the Issuer's initial public offering, TPG Orazio II acquired an aggregate of 1,388,889 shares of Common Stock at a price of $18.00 per share.

Footnote F6

Because of the relationship between the Reporting Persons and the TPG Funds, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of the greater of their respective direct or indirect pecuniary interests in the profits or capital accounts of the TPG Funds. Each of the TPG Funds and each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such TPG Fund's or such Reporting Person's pecuniary interest therein, if any.

Footnote F7

Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), this filing shall not be deemed an admission that the Reporting Persons are, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any equity securities in excess of their respective pecuniary interests.

SEC remarks

(8) The Reporting Persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act. (9) Gerald Neugebauer is signing on behalf of Messrs. Coulter and Winkelried pursuant to authorization and designation letters dated January 10, 2024, which were previously filed with the Securities and Exchange Commission.

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