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BlossomHill director reports option, 578K-share interest

BlossomHill Therapeutics, Inc. (BLSM) reports the initial beneficial ownership of director Sundeep Agrawal.

(Neutral)
(Neutral)
Form Type
3

Rhea-AI Filing Summary

BlossomHill Therapeutics, Inc. (BLSM) reports the initial beneficial ownership of director Sundeep Agrawal. He holds a Director Stock Option covering 10,671 shares of common stock at an exercise price of $6.28 per share, expiring on August 15, 2035, vesting in 12 equal monthly installments beginning on August 15, 2025. He is also reported as having indirect ownership of 578,524 underlying common shares through Series B Preferred Stock held by Brahma BlossomHill Partners, LLC, which is convertible into common stock on a 1-for-1 basis upon the closing of the company’s initial public offering, with no expiration date; Agrawal disclaims beneficial ownership of these indirect securities.

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Insider Agrawal Sundeep
Role Director
Type Security Shares Price Value
holding Director Stock Option (Right to Buy) F1 -- -- --
holding Series B Preferred Stock F2, F3 -- -- --
Holdings After Transaction: Director Stock Option (Right to Buy) — 10,671 contracts (Direct); Series B Preferred Stock — 578,524 contracts (Indirect, By Brahma BlossomHill Partners, LLC)
Footnotes (3)
  1. F1. The shares vest in 12 equal monthly installments beginning on August 15, 2025.
  2. F2. Each share of Series B Preferred Stock is convertible into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. The Series B Preferred Stock has no expiration date.
  3. F3. The securities are held of record by Brahma BlossomHill Partners, LLC ("Brahma Partners"). The Reporting Person is the founder and managing partner of Brahma Capital, LLC, which manages Brahma Partners, and may be deemed to have sole voting and/or investment power over the securities held by Brahma Partners. The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
Director Stock Option underlying shares 10,671 shares Common Stock underlying Director Stock Option held by Sundeep Agrawal
Director Stock Option exercise price $6.28 per share Exercise price for Director Stock Option over BlossomHill common stock
Director Stock Option expiration August 15, 2035 Expiration date of Director Stock Option
Option vesting schedule 12 monthly installments Option vests in 12 equal monthly installments beginning on August 15, 2025
Series B Preferred underlying shares 578,524 shares Underlying BlossomHill common shares for Series B Preferred Stock held indirectly
Conversion ratio 1 share common per 1 share Series B Preferred Each share of Series B Preferred Stock converts into 1 share of Common Stock upon IPO closing
Director Stock Option (Right to Buy) financial
"security_title: Director Stock Option (Right to Buy)"
Series B Preferred Stock financial
"security_title: Series B Preferred Stock"
Series B preferred stock is a type of ownership share issued by a company that offers certain advantages over common stock, such as priority in receiving dividends or assets if the company is sold or liquidated. It is typically issued after an initial round of funding, making it a way for investors to support a company's growth while gaining some protections and benefits. This stock matters to investors because it often provides a more secure investment position with potential for future growth.
convertible financial
"Each share of Series B Preferred Stock is convertible into 1 share"
A convertible is a type of investment that starts as a loan or preferred stake (like a bond or preferred share) but can be exchanged for common shares of the company at a set price or under certain conditions. It matters to investors because it offers a mix of steady income and downside protection like a loan, plus the upside of stock ownership if the company does well—similar to holding a coupon that you can trade for a full ticket if the event becomes valuable.
beneficial ownership financial
"The Reporting Person disclaims beneficial ownership of these securities"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

FAQ

What insider holdings did director Sundeep Agrawal report in Form 3 for BLSM?

Director Sundeep Agrawal reported a stock option for 10,671 BLSM common shares at $6.28 per share, expiring August 15, 2035, plus indirect interest in 578,524 underlying common shares via Series B Preferred Stock held by Brahma BlossomHill Partners, LLC.

What are the key terms of Sundeep Agrawal’s stock option in BlossomHill Therapeutics (BLSM)?

Agrawal holds a Director Stock Option over 10,671 BLSM common shares with an exercise price of $6.28 and expiration on August 15, 2035. The option vests in 12 equal monthly installments starting August 15, 2025.

How many BlossomHill Therapeutics (BLSM) shares are linked to the Series B Preferred Stock reported?

The filing shows 578,524 underlying BLSM common shares tied to Series B Preferred Stock. Each preferred share converts into 1 common share upon the closing of BlossomHill’s initial public offering, with no expiration date on the preferred stock.

Is the Series B Preferred Stock in BLSM held directly by Sundeep Agrawal?

No. The Series B Preferred Stock is held of record by Brahma BlossomHill Partners, LLC. Agrawal is associated through Brahma Capital, LLC and may be deemed to have voting and/or investment power but expressly disclaims beneficial ownership of these securities.

Does this BLSM Form 3 report any insider purchases or sales by Sundeep Agrawal?

The Form 3 presents holdings only, not purchases or sales. It lists a vested-and-vesting stock option and indirectly held Series B Preferred Stock. The transaction summary shows no buy or sell transactions, only current derivative and preferred positions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Agrawal Sundeep

(Last)(First)(Middle)
C/O BLOSSOMHILL THERAPEUTICS, INC.
10255 SCIENCE CENTER DRIVE, SUITE 200

(Street)
SAN DIEGO CALIFORNIA 92121

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
08/06/2026
3. Issuer Name and Ticker or Trading Symbol
BlossomHill Therapeutics, Inc. [ BLSM ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Director Stock Option (Right to Buy) (1)08/15/2035Common Stock10,671$6.28D
Series B Preferred Stock (2) (2)Common Stock578,524(2)IBy Brahma BlossomHill Partners, LLC(3)
Explanation of Responses:
1. The shares vest in 12 equal monthly installments beginning on August 15, 2025.
2. Each share of Series B Preferred Stock is convertible into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. The Series B Preferred Stock has no expiration date.
3. The securities are held of record by Brahma BlossomHill Partners, LLC ("Brahma Partners"). The Reporting Person is the founder and managing partner of Brahma Capital, LLC, which manages Brahma Partners, and may be deemed to have sole voting and/or investment power over the securities held by Brahma Partners. The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
/s/ Vincent Liptak, Attorney-in-Fact08/06/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)