[Form 4] Glacier Bancorp Inc Insider Trading Activity

Rhea-AI Filing Summary

Seagate Technology Holdings PLC (STX) CEO William D. Mosley filed a Form 144 disclosing his intent to sell 20,000 common shares via Morgan Stanley on or after 1 Aug 2025. At the filing’s indicative price, the transaction would raise roughly $3.14 million and represents just 0.009 % of the company’s 212.68 million shares outstanding.

The stock to be sold was acquired through RSU/PSU grants dated 31 Oct 2014. The notice follows a string of recent Rule 10b5-1 sales by Mosley: 214,347 shares sold between 22 May 2025 and 1 Jul 2025 for aggregate gross proceeds of about $26.0 million. No operational or financial performance data accompany the filing; it is strictly an insider-sale disclosure required under Rule 144.

Positive

• Sale equals only 0.009 % of shares outstanding, limiting direct dilution or market impact.
• Transaction executed under Rule 10b5-1 plan, indicating advance planning and regulatory compliance.

Negative

• CEO continues sizable insider selling—214 k shares already sold plus 20 k planned, totaling ≈$29 m.
• Repeated disposals may be interpreted as reduced management confidence in near-term outlook.

Insights

Securities Analyst

TL;DR — CEO plans new insider sale after $26 m of recent disposals; minor in % terms but could pressure sentiment.

Mosley’s proposed 20 k-share sale is immaterial to the float, yet it extends an active selling pattern totaling >214 k shares in the last three months. Persistent executive selling—even under a 10b5-1 plan—can signal limited near-term confidence and may weigh on perception as investors debate cyclicality in the storage market. With no offsetting positive catalyst disclosed, I view the filing as incrementally negative but not thesis-changing.

Corporate Governance Expert

TL;DR — Rule 144 filing shows compliant process; pattern raises optics concerns.

The use of a pre-arranged 10b5-1 plan and timely Form 144 submission demonstrates good governance practice. However, the sheer dollar amount—≈$29 m including the new intent—may attract proxy-advisory scrutiny on pay-for-performance alignment. Boards typically monitor cumulative executive sales versus ownership guidelines; investors will look for confirmation that Mosley’s remaining stake remains substantial.

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^*

Heck Kristen Lee

(Last) (First) (Middle)

49 COMMONS LOOP

(Street)

KALISPELL MT 59901

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
GLACIER BANCORP, INC. [ GBCI ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
08/01/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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
Common Stock	08/01/2025		P		153	A	$42.41	9,925	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/ Martha Tannehill for Kristen L. Heck	08/01/2025
	** 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.

FAQ

Why did Seagate CEO William Mosley file Form 144?

The filing notifies the SEC of his intent to sell 20,000 Seagate common shares under Rule 144 on or after 1 Aug 2025.

How many Seagate shares has Mosley sold recently?

The Form 144 lists 214,347 shares sold between 22 May and 1 Jul 2025 plus the new plan to sell 20,000 additional shares.

What is the value of the proposed sale?

At the stated market price, the 20 k-share lot is valued at approximately $3.14 million.

Does the planned sale dilute existing shareholders?

No new shares are issued; Mosley is selling existing shares he owns, so no dilution occurs.

Is the sale under a 10b5-1 trading plan?

Yes. The filing references Rule 10b5-1, indicating the sales are conducted under a pre-arranged trading plan.

What percentage of Seagate’s float does 20,000 shares represent?

Roughly 0.009 % of the 212.68 million shares outstanding.