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Fulcrum Therapeutics (FULC) director receives 32,000 stock options at $3.66 strike

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Fulcrum Therapeutics, Inc. director James A. Geraghty received a grant of stock options covering 32,000 shares of common stock. The options have an exercise price of $3.66 per share and expire on June 29, 2036. According to the grant terms, all 32,000 options are scheduled to vest on the first anniversary of the June 30, 2026 grant date, or earlier immediately before the first annual stockholder meeting after that date, subject to his continued service.

Positive

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Insider GERAGHTY JAMES A
Role null
Type Security Shares Price Value
Grant/Award Stock Option (right to buy) 32,000 $0.00 --
Holdings After Transaction: Stock Option (right to buy) — 32,000 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Options granted 32,000 options Stock Option (right to buy) grant to director
Exercise price $3.66 per share Exercise price for the granted stock options
Underlying shares 32,000 shares Common stock underlying the option grant
Total derivative holdings after grant 32,000 options Total options held following this transaction
Grant date June 30, 2026 Date the stock option grant was awarded
Expiration date June 29, 2036 Option expiration for this grant
Stock Option (right to buy) financial
"security_title: "Stock Option (right to buy)""
exercise price financial
"conversion_or_exercise_price: "3.6600""
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
Common Stock financial
"underlying_security_title: "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
grant date financial
"This option was granted on June 30, 2026 and is scheduled to vest..."
The grant date is the day a company formally gives an employee or contractor the right to receive stock-based compensation, such as stock options or restricted shares. It matters to investors because it fixes key terms—like the price, the start of the ownership clock, and when the award will affect the company’s financial statements and share count—so it can influence dilution, reported expenses, and potential future selling pressure.
vest financial
"and is scheduled to vest with respect to all shares on the first anniversary..."
A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.
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FAQ

What insider transaction did Fulcrum Therapeutics (FULC) report for James A. Geraghty?

Fulcrum Therapeutics reported that director James A. Geraghty received a stock option grant for 32,000 shares. The options relate to common stock and were awarded as compensation, rather than being purchased in the open market, and represent a routine director equity grant.

What is the exercise price of the new Fulcrum Therapeutics (FULC) stock options?

The granted stock options have an exercise price of $3.66 per share. This means Geraghty can buy Fulcrum Therapeutics common stock at $3.66 once the options vest, if he chooses to exercise them during the option term before expiration.

When do James A. Geraghty’s Fulcrum Therapeutics (FULC) options vest?

The 32,000 stock options are scheduled to vest in full on the first anniversary of the June 30, 2026 grant date. They may vest earlier, immediately before the first annual stockholder meeting after the grant date, provided he continues in service until that time.

When do the newly granted Fulcrum Therapeutics (FULC) stock options expire?

The stock options granted to James A. Geraghty expire on June 29, 2036. After that expiration date, any unexercised options become worthless, so exercise would need to occur between vesting and this expiration under the plan’s terms.

How many Fulcrum Therapeutics (FULC) derivative securities does James A. Geraghty hold after this Form 4?

Following the grant, Geraghty holds 32,000 stock options directly as reported in the filing. These options each relate to one share of common stock, giving him the right to buy up to 32,000 shares if he exercises them after vesting.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
GERAGHTY JAMES A

(Last)(First)(Middle)
C/O FULCRUM THERAPEUTICS, INC.
26 LANDSDOWNE STREET

(Street)
CAMBRIDGE MASSACHUSETTS 02139

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Fulcrum Therapeutics, Inc. [ FULC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (right to buy)$3.6606/30/2026A32,000 (1)06/29/2036Common Stock32,000$0.0032,000D
Explanation of Responses:
1. This option was granted on June 30, 2026 and is scheduled to vest with respect to all shares on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to continued service.
/s/ Greg Tourangeau, as attorney-in-fact for James A. Geraghty07/02/2026
** 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 4 (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 4: SEC 1474 (03-26)