Insider at Monte Rosa Therapeutics (GLUE) sells 5,845 shares

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Monte Rosa Therapeutics’ Chief Business & Legal Officer, Nickson Philip, sold 5,845 shares of common stock in an open-market transaction. The sale on April 9, 2026 was executed at a weighted average price of $17.6925 per share, based on multiple trades within a narrow range. After this sale, he directly holds 55,000 shares of Monte Rosa Therapeutics common stock.

Insider Trade Summary

Net Seller: 5,845 shares ($103,413)

Net Sell 1 txn

Insider Nickson Philip

Role Chief Business & Legal Officer

Sold 5,845 shs ($103K)

Type	Security	Shares	Price	Value
Sale	Common Stock	5,845	$17.6925	$103K

Holdings After Transaction: Common Stock — 55,000 shares (Direct)

Footnotes (1)

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Key Figures

Shares sold: 5,845 shares Weighted average sale price: $17.6925 per share Remaining direct holdings: 55,000 shares +1 more

4 metrics

Shares sold 5,845 shares Open-market sale on April 9, 2026

Weighted average sale price $17.6925 per share Common stock sale across multiple trades

Remaining direct holdings 55,000 shares Shares directly owned after the transaction

Price range of trades $17.6901–$17.71 per share Range for individual transactions included in weighted average

Key Terms

open-market sale, weighted average price, Common Stock, Form 4

4 terms

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Common Stock financial

""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.

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

04/10/2026 - 04:07 PM

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^*

Nickson Philip

(Last)

(First)

(Middle)

MONTE ROSA THERAPEUTICS, INC.

321 HARRISON AVENUE, SUITE 900

(Street)

BOSTON

MASSACHUSETTS

02118

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Monte Rosa Therapeutics, Inc. [ GLUE ]

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Business & Legal Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/09/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/09/2026		S		5,845	D	$17.6925⁽¹⁾	55,000	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.6901 to $17.71, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

	/s/ Philip Nickson	04/10/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did GLUE’s Nickson Philip report on this Form 4?

Nickson Philip reported an open-market sale of 5,845 shares of Monte Rosa Therapeutics common stock. The transaction occurred on April 9, 2026 and reflects a routine disposal rather than a grant or option exercise.

At what price were the Monte Rosa Therapeutics (GLUE) shares sold?

The reported price is a weighted average of $17.6925 per share. The shares were sold in multiple trades, with individual prices ranging from $17.6901 to $17.71, all within a narrow band around the average.

How many GLUE shares does Nickson Philip hold after this transaction?

Following the reported sale, Nickson Philip directly owns 55,000 shares of Monte Rosa Therapeutics common stock. This figure represents his remaining direct holdings as disclosed in the Form 4 after the 5,845-share disposition.

Was the GLUE insider sale by Nickson Philip an open-market transaction?

Yes. The Form 4 describes the transaction as an open-market sale of common stock. The weighted average pricing and the disclosed intraday price range confirm it was executed through multiple trades rather than a single negotiated block.

Does the Form 4 for GLUE mention how the sale prices were calculated?

Yes. The filing notes that the reported price is a weighted average of several trades. It also states that full details of the number of shares sold at each separate price within the $17.6901 to $17.71 range are available upon request.