Parabilis (PBLS) director receives grant of 20,215 stock options at $20

Rhea-AI Filing Summary

Parabilis Medicines, Inc. director Edward M. Fitzgerald received a grant of stock options covering 20,215 shares of common stock. The options have an exercise price of $20.0000 per share and expire on June 8, 2036. The underlying 20,215 shares will vest and become exercisable in full on the earlier of June 9, 2027 or the date of the issuer's next annual meeting of stockholders, subject to his continued service on that vesting date.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider FITZGERALD EDWARD M

Role null

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	20,215	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 20,215 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Options granted: 20,215 options Exercise price: $20.0000 per share Underlying shares: 20,215 shares +3 more

6 metrics

Options granted 20,215 options Stock Option (Right to Buy) grant on June 9, 2026

Exercise price $20.0000 per share Exercise price for the 20,215 stock options

Underlying shares 20,215 shares Common stock underlying the option grant

Post-grant derivative holdings 20,215 options Total derivative securities following the transaction

Expiration date June 8, 2036 Option expiration for the grant

Vesting date trigger June 9, 2027 or next annual meeting Earlier date when options vest, subject to continued service

Key Terms

Stock Option (Right to Buy), exercise price, vesting, expiration date, +1 more

5 terms

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

exercise price financial

"conversion_or_exercise_price: 20.0000"

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.

vesting financial

"shares underlying this option shall vest and become exercisable in full"

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.

expiration date financial

"expiration_date: 2036-06-08T00:00:00.000Z"

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.

annual meeting of stockholders financial

"the Issuer's next annual meeting of stockholders"

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED 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^*

FITZGERALD EDWARD M

(Last) (First) (Middle)

C/O PARABILIS MEDICINES, INC.

30 ACORN PARK DRIVE, 6TH FLOOR

(Street)

CAMBRIDGE MASSACHUSETTS 02140

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Parabilis Medicines, Inc. [ PBLS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$20	06/09/2026		A		20,215		(1)	06/08/2036	Common Stock	20,215	$0.00	20,215	D

Explanation of Responses:

1. The shares underlying this option shall vest and become exercisable in full upon the earlier of (i) June 9, 2027 or (ii) the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service on such vesting date.

	/s/ Teresa Jurgensen, Attorney-in-Fact	06/11/2026
	** Signature of Reporting Person	Date
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)

FAQ

What insider transaction did Parabilis Medicines (PBLS) report for Edward M. Fitzgerald?

Parabilis Medicines reported that director Edward M. Fitzgerald received a grant of stock options for 20,215 shares. These options give him the right to buy common stock at a set price and represent a compensation-related award rather than an open-market share purchase.

How many Parabilis Medicines (PBLS) shares are covered by the new stock option grant?

The new stock option grant covers 20,215 underlying shares of Parabilis Medicines common stock. All 20,215 options were acquired in a single grant, and his total derivative holdings reported after this transaction are 20,215 options tied to the same number of common shares.

What is the exercise price of Edward Fitzgerald’s Parabilis (PBLS) stock options?

The exercise price of Edward Fitzgerald’s Parabilis stock options is $20.0000 per share. This means he can purchase each underlying share at $20.0000 once the options vest and become exercisable, regardless of the market price at that future time.

When do Edward Fitzgerald’s Parabilis (PBLS) stock options vest and become exercisable?

The options vest and become exercisable in full on the earlier of June 9, 2027 or the date of Parabilis’ next annual stockholder meeting. Vesting is conditional on Edward Fitzgerald’s continued service with the company through that vesting date.

When do Edward Fitzgerald’s Parabilis (PBLS) stock options expire?

The stock options granted to Edward Fitzgerald expire on June 8, 2036. After this expiration date, the options can no longer be exercised, even if they previously vested and were otherwise exercisable under the terms of the grant.

Is Edward Fitzgerald’s Parabilis (PBLS) option grant an open-market share purchase?

No, the grant is not an open-market purchase. It is a compensation-related award of stock options coded as a grant or other acquisition, giving Fitzgerald the right to buy 20,215 shares at a fixed exercise price in the future, subject to vesting.