STOCK TITAN

Larimar Therapeutics (LRMR) director awarded 55,150 stock options at $3.33 strike

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

Rhea-AI Filing Summary

Larimar Therapeutics director Frank E. Thomas received a new stock option grant as equity compensation. He was awarded options to purchase 55,150 shares of common stock at an exercise price of $3.33 per share, with no cash paid at grant.

The options vest on the earlier of May 19, 2027 or the date of Larimar’s next annual stockholder meeting, in each case only if he continues serving on the board. Following this grant, he holds 55,150 stock options directly, highlighting a routine, service-based incentive award rather than an open-market trade.

Positive

  • None.

Negative

  • None.
Insider THOMAS FRANK E
Role null
Type Security Shares Price Value
Grant/Award Stock Option (Right to Buy) 55,150 $0.00 --
Holdings After Transaction: Stock Option (Right to Buy) — 55,150 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Options granted 55,150 options Stock Option (Right to Buy) grant on May 19, 2026
Exercise price $3.33 per share Strike price for the 55,150 option shares
Options held after grant 55,150 options Total derivative holdings following this transaction
Option expiration May 19, 2036 Expiration date of the granted stock options
Vesting date trigger Earlier of May 19, 2027 or next annual meeting Vesting condition tied to continued board service
Stock Option (Right to Buy) financial
"security_title: "Stock Option (Right to Buy)""
exercise price financial
"conversion_or_exercise_price: "3.3300" per share"
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.
expiration date financial
"expiration_date: "2036-05-19T00:00:00.000Z""
The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.
vesting financial
"The options vest on the earlier of (a) May 19, 2027 or (b) the date of the Company's next annual meeting"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
Board of Directors financial
"subject to the Reporting Person's continued service on the Board of Directors of the Company"
The Board of Directors is a group of people chosen by a company's owners to help make big decisions and oversee how the company is run. They act like a team of advisors or managers, making sure the company stays on track and meets its goals. Their choices can influence the company's success and how it grows.
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*
THOMAS FRANK E

(Last)(First)(Middle)
C/O LARIMAR THERAPEUTICS, INC.
THREE BALA PLAZA EAST, SUITE 506

(Street)
BALA CYNWYD PENNSYLVANIA 19004

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Larimar Therapeutics, Inc. [ LRMR ]
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)
05/19/2026
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)$3.3305/19/2026A55,150 (1)05/19/2036Common Stock55,150$055,150D
Explanation of Responses:
1. The options vest on the earlier of (a) May 19, 2027 or (b) the date of the Company's next annual meeting of stockholders, in each case subject to the Reporting Person's continued service on the Board of Directors of the Company.
/s/ Jennifer Johansson, Attorney-in-fact05/20/2026
** 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)