Institutions report stakes in Insight Enterprises (NSIT) including 10.3% by Morgan Stanley

Rhea-AI Filing Summary

Insight Enterprises Inc ownership disclosures: three institutional filers reported beneficial ownership in Common Stock (CUSIP 45765U103). Morgan Stanley reporting units show shared dispositive power of 2,986,893 shares representing 10.3% of the class. Atlanta Capital Management Company, LLC and Eaton Vance Atlanta Capital SMID-Cap Fund report shared dispositive power of 2,724,407 and 1,736,069 shares, representing 9.5% and 5.8%, respectively.

The filing is an amended joint Schedule 13G/A identifying filing addresses, citizenships, and signatures; it includes exhibits for a Joint Filing Agreement and Item 7 subsidiary information.

Insights

Institutional Ownership Specialist

Large institutional stakes disclosed across multiple reporting entities.

The amendment lists three institutional reporting persons with significant shared dispositive voting positions: 2,986,893 shares (10.3%) for Morgan Stanley reporting units, 2,724,407 shares (9.5%) for Atlanta Capital, and 1,736,069 shares (5.8%). These figures are presented as beneficial ownership percentages of the outstanding class.

Filing mechanics: this is a joint Schedule 13G/A amendment with signatures and exhibits, including Item 7 subsidiary detail. Subsequent filings or exhibits may clarify subsidiary attribution and any changes to voting/dispositive arrangements.

Compliance & Proxy Advisor

Disclosure aligns with passive/institutional reporting conventions under Schedule 13G/A.

The document cites the Release regarding Morgan Stanley Reporting Units and disaggregation rules, and supplies street addresses and authorized signatories. It attaches a Joint Filing Agreement and Item 7 exhibit for subsidiary identification.

Materiality: the percentages reported (10.3%, 9.5%, 5.8%) may influence governance trackers; changes in these stakes would be visible in future ownership amendments.

Key Figures

Morgan Stanley shared dispositive power: 2,986,893 shares Morgan Stanley ownership percent: 10.3% Atlanta Capital shared dispositive power: 2,724,407 shares +3 more

6 metrics

Morgan Stanley shared dispositive power 2,986,893 shares Amendment No. 4 Schedule 13G/A

Morgan Stanley ownership percent 10.3% Percent of class reported in Item 4

Atlanta Capital shared dispositive power 2,724,407 shares Schedule 13G/A cover responses

Atlanta Capital ownership percent 9.5% Percent of class reported in Item 4

Eaton Vance fund shared dispositive power 1,736,069 shares Schedule 13G/A cover responses

Eaton Vance fund ownership percent 5.8% Percent of class reported in Item 4

Key Terms

Schedule 13G/A, beneficially owned, shared dispositive power, MS Reporting Units

4 terms

Schedule 13G/A regulatory

"Amended joint Schedule 13G/A identifying institutional beneficial owners"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficially owned regulatory

"securities beneficially owned, or that may be deemed to be beneficially owned"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared dispositive power financial

"Shared Dispositive Power 2,986,893.00"

MS Reporting Units organizational

"securities beneficially owned by certain operating units (the "MS Reporting Units")"

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Available on EDGAR 06/05/2026 - 04:17 PM Accepted by SEC EDGAR 06/05/2026 - 04:16 PM Learn about SEC filing dates

FAQ

What percentage of Insight Enterprises (NSIT) does Morgan Stanley report owning?

Morgan Stanley reporting units disclose beneficial ownership representing 10.3% of common stock, with 2,986,893 shares listed as shared dispositive power in the amendment.

How many shares does Atlanta Capital Management report for NSIT?

Atlanta Capital Management Company, LLC reports 2,724,407 shares of shared dispositive power, representing 9.5% of Insight Enterprises' common stock in this amendment.

What stake does Eaton Vance Atlanta Capital SMID-Cap Fund report in NSIT?

Eaton Vance Atlanta Capital SMID-Cap Fund reports 1,736,069 shares and a disclosed ownership percentage of 5.8% of Insight Enterprises' common stock.

Does this filing include subsidiary attribution for Morgan Stanley holdings?

Yes. The amendment references an Item 7 exhibit and the Release No. 34-39538 to explain that certain MS Reporting Units' holdings are shown; Exhibit 99.2 is listed for subsidiary identification.

Who signed the Schedule 13G/A amendment for these filers?

Authorized signatories listed include Claire Gordon for Morgan Stanley and Kelly Williams for Atlanta Capital and Eaton Vance fund, each signing and dating the amendment in June 2026.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

INSIGHT ENTERPRISES INC

(Name of Issuer)

Common Stock

(Title of Class of Securities)

45765U103

(CUSIP Number)

05/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 45765U103

1

Names of Reporting Persons

Morgan Stanley

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,711,140.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,986,893.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,123,450.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

10.3 %

12

Type of Reporting Person (See Instructions)

HC, CO

SCHEDULE 13G

CUSIP Number(s): 45765U103

1

Names of Reporting Persons

Atlanta Capital Management Company, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,462,673.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,724,407.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,858,547.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.5 %

12

Type of Reporting Person (See Instructions)

IA, CO

SCHEDULE 13G

CUSIP Number(s): 45765U103

1

Names of Reporting Persons

Eaton Vance Atlanta Capital SMID-Cap Fund

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

MASSACHUSETTS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,736,069.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,736,069.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,736,069.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.8 %

12

Type of Reporting Person (See Instructions)

IV

SCHEDULE 13G

Item 1.
(a)	Name of issuer: INSIGHT ENTERPRISES INC
(b)	Address of issuer's principal executive offices: 2701 E INSIGHT WAY, CHANDLER, AZ, 85286
Item 2.
(a)	Name of person filing: 1: Morgan Stanley 2: Atlanta Capital Management Company, LLC 3: Eaton Vance Atlanta Capital SMID-Cap Fund
(b)	Address or principal business office or, if none, residence: 1: 1585 Broadway, New York, NY 10036 ;2: 1075 Peachtree Street, Suite 2100, Atlanta, GA 30309 ;3: One Post Office Square Boston, Massachusetts 02109
(c)	Citizenship: 1: Delaware 2: Delaware 3: Massachusetts
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 45765U103
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: See the response(s) to Item 9 on the attached cover page(s).
(b)	Percent of class: 10.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See the response(s) to Item 5 on the attached cover page(s).
	(ii) Shared power to vote or to direct the vote: See the response(s) to Item 6 on the attached cover page(s).
	(iii) Sole power to dispose or to direct the disposition of: See the response(s) to Item 7 on the attached cover page(s).
	(iv) Shared power to dispose or to direct the disposition of: See the response(s) to Item 8 on the attached cover page(s).
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit 99.2
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. * In Accordance with the Securities and Exchange Commission Release No. 34-39538 (January 12, 1998) (the "Release"), this filing reflects the securities beneficially owned, or that may be deemed to be beneficially owned, by certain operating units (collectively, the "MS Reporting Units") of Morgan Stanley and its subsidiaries and affiliates (collectively, "MS"). This filing does not reflect securities, if any, beneficially owned by any operating units of MS whose ownership of securities is disaggregated from that of the MS Reporting Units in accordance with the Release.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Morgan Stanley

Signature:	Claire Gordon
Name/Title:	Authorized Signatory, Morgan Stanley
Date:	06/05/2026

Atlanta Capital Management Company, LLC

Signature:	Kelly Williams
Name/Title:	Authorized Signatory, Atlanta Capital Management Company, LLC
Date:	06/05/2026

Eaton Vance Atlanta Capital SMID-Cap Fund

Signature:	Kelly Williams
Name/Title:	Authorized Signatory, Eaton Vance Atlanta Capital SMID-Cap Fund
Date:	06/05/2026

Exhibit Information

EXHIBIT NO. EXHIBITS ------------------ ------------------------------------ 99.1 Joint Filing Agreement 99.2 Item 7 Information * Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001).