BlackRock reports 3.7% stake in SS&C

BlackRock Portfolio Management LLC amended a Schedule 13G to report beneficial ownership of 8,813,929 shares of SS&C Technologies Holdings Inc common stock, representing 3.7% of the class.

Rhea-AI Filing Summary

BlackRock Portfolio Management LLC amended a Schedule 13G to report beneficial ownership of 8,813,929 shares of SS&C Technologies Holdings Inc common stock, representing 3.7% of the class. The filing states BlackRock has sole voting power for 8,575,970 shares and sole dispositive power for 8,813,929 shares.

The amendment clarifies that these holdings reflect certain Reporting Business Units of BlackRock, Inc., and includes customary exhibits: a power of attorney and an Item 7 exhibit identifying the relevant subsidiary. The filing is signed by a Managing Director on 04/30/2026.

Insights

Institutional Ownership Analyst

BlackRock holds a passive 3.7% stake in SS&C as reported on a Schedule 13G/A.

The filing lists 8,813,929 shares beneficially owned with sole voting power over 8,575,970 shares. This is a passive disclosure under Schedule 13G/A, indicating large institutional holding rather than an activist position.

Future filings may show changes in voting or dispositive power; subsequent Schedule 13D would signal a change in intent.

Compliance & Proxy Specialist

The amendment aligns with SEC Release No. 34-39538 aggregation guidance for BlackRock business units.

The cover language explains aggregation of Reporting Business Units and excludes holdings of disaggregated units. Exhibits include a power of attorney and Item 7 subsidiary identification, supporting proper Schedule 13G/A disclosures and signature authority.

Watch for any future amendments that change percent ownership or move to Schedule 13D.

Key Figures

Beneficial ownership: 8,813,929 shares Percent of class: 3.7% Sole voting power: 8,575,970 shares +2 more

5 metrics

Beneficial ownership 8,813,929 shares Amount beneficially owned reported on Schedule 13G/A

Percent of class 3.7% Percent of common stock class reported in Item 4

Sole voting power 8,575,970 shares Shares with sole power to vote reported in Item 4(c)(i)

Sole dispositive power 8,813,929 shares Shares with sole power to dispose reported in Item 4(c)(iii)

CUSIP 78467J100 Issuer CUSIP shown on cover page

Key Terms

Schedule 13G/A, Reporting Business Units, Sole dispositive power, Exhibit 24

4 terms

Schedule 13G/A regulatory

"amended a Schedule 13G to report beneficial ownership"

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.

Reporting Business Units regulatory

"beneficially owned by certain business units (collectively, the "Reporting Business Units")"

Sole dispositive power financial

"Sole power to dispose or to direct the disposition of: 8,813,929"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Exhibit 24 regulatory

"Exhibit 24: Power of Attorney"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does BlackRock report in SSNC?

BlackRock Portfolio Management LLC reports beneficial ownership of 8,813,929 shares, equal to 3.7% of SS&C Technologies Holdings Inc common stock. The filing states sole voting power for 8,575,970 shares and sole dispositive power for 8,813,929 shares.

Is BlackRock an activist investor in SSNC according to this filing?

No. The filing is a Schedule 13G/A, which generally indicates a passive institutional investor. The amendment aggregates holdings of Reporting Business Units and does not state intent to influence management or control the company’s policies.

What date and signature appear on the Schedule 13G/A amendment?

The Schedule 13G/A amendment is signed by Spencer Fleming, Managing Director, with a signature date of 04/30/2026. The cover page also shows an issuer CUSIP of 78467J100 and an issuer address for SS&C Technologies Holdings Inc.

Which exhibits are attached to this Schedule 13G/A amendment?

The amendment lists Exhibit 24 (Power of Attorney) and Exhibit 99 (Item 7 subsidiary identification). These exhibits support signature authority and identification of the subsidiary acquiring the reported securities.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/30/2026 - 05:01 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

SS&C Technologies Holdings Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

78467J100

(CUSIP Number)

03/31/2026

(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): 78467J100

1

Names of Reporting Persons

BlackRock Portfolio Management 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 8,575,970.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 8,813,929.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,813,929.00

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)

3.7 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: SS&C Technologies Holdings Inc
(b)	Address of issuer's principal executive offices: 80 LAMBERTON RD, WINDSOR, CONNECTICUT, 06095
Item 2.
(a)	Name of person filing: BlackRock Portfolio Management LLC In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)	Address or principal business office or, if none, residence: BlackRock Portfolio Management LLC, 50 Hudson Yards New York, NY 10001
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 78467J100
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: 8,813,929
(b)	Percent of class: 3.7%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 8,575,970
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 8,813,929
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of SS&C Technologies Holdings Inc. No one person's interest in the common stock of SS&C Technologies Holdings Inc is more than five percent of the total outstanding common shares.
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
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.

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.

BlackRock Portfolio Management LLC

Signature:	Spencer Fleming
Name/Title:	Managing Director
Date:	04/30/2026

Exhibit Information

Exhibit 24: Power of Attorney Exhibit 99: Item 7