Primecap reports 9.22% stake in Elanco

Elanco Animal Health Incorporated ownership disclosure: PRIMECAP MANAGEMENT CO/CA/ reports beneficial ownership of 45,840,956 shares of common stock, representing 9.22% of the class.

Rhea-AI Filing Summary

Elanco Animal Health Incorporated ownership disclosure: PRIMECAP MANAGEMENT CO/CA/ reports beneficial ownership of 45,840,956 shares of common stock, representing 9.22% of the class. The filing lists sole voting power of 45,573,360 shares and sole dispositive power of 45,840,956 shares.

Insights

Institutional Holdings Analyst

Primecap reports a substantial 9.22% stake in Elanco.

The filing shows a beneficial holding of 45,840,956 shares with sole voting power on 45,573,360 shares. This size places Primecap among large institutional holders and is a snapshot of position size rather than a transaction.

Implications depend on future 13D/13G activity or proxy filings; subsequent filings would show changes in intent or control interests.

Corporate Governance Specialist

Disclosure clarifies voting and dispositive authority for governance context.

The filer explicitly reports sole voting and dispositive powers, which matter for proxy and voting outcome assessments. The CUSIP 28414H103 and address details identify the reporting entity.

Any governance impact would require further filings or public statements; this amendment updates the public ownership record.

Key Figures

Beneficial ownership: 45,840,956 shares Percent of class: 9.22% Sole voting power: 45,573,360 shares +3 more

6 metrics

Beneficial ownership 45,840,956 shares Item 4 beneficially owned

Percent of class 9.22% Item 4 percent of class

Sole voting power 45,573,360 shares Item 4(i) sole power to vote

Sole dispositive power 45,840,956 shares Item 4(iii) sole power to dispose

CUSIP 28414H103 Cover: CUSIP number for common stock

Signature date 05/12/2026 Filing signature block date

Key Terms

Schedule 13G/A, Beneficial ownership, Sole dispositive power, CUSIP

4 terms

Schedule 13G/A regulatory

"Amendment No. 7 ) Elanco Animal Health Incorporated"

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.

Beneficial ownership financial

"Item 4. | Ownership (a) | Amount beneficially owned: 45,840,956"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Sole dispositive power regulatory

"(iii) Sole power to dispose or to direct the disposition of: 45,840,956"

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.

CUSIP regulatory

"CUSIP No.: 28414H103"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

FAQ

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

What stake does PRIMECAP report in ELAN?

PRIMECAP reports beneficial ownership of 45,840,956 shares, representing 9.22% of Elanco's common stock. The filing states sole voting power on 45,573,360 shares and sole dispositive power on 45,840,956 shares.

What class of Elanco stock is reported in the filing?

The filing covers the company's common stock (CUSIP 28414H103). The schedule identifies the title of the class as COM and lists the reporter's principal business address in Pasadena, California.

Who signed the Schedule 13G/A amendment for PRIMECAP?

The amendment is signed by Jorge A. Rodriguez, identified as Deputy Chief Compliance Officer, with the signature date shown as 05/12/2026 on the filing's signature block.

Does the filing indicate a change in voting authority?

The schedule reports current holdings with sole voting power of 45,573,360 shares. It records the voting and dispositive powers but does not by itself state a change of control or intent beyond updating ownership figures.

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

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Accepted by SEC EDGAR 05/13/2026 - 09:34 AM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 7)

Elanco Animal Health Incorporated

(Name of Issuer)

COM

(Title of Class of Securities)

28414H103

(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): 28414H103

1

Names of Reporting Persons

PRIMECAP MANAGEMENT CO/CA/

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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 45,573,360.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 45,840,956.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

45,840,956.00

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)

9.22 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Elanco Animal Health Incorporated
(b)	Address of issuer's principal executive offices: 450 Elanco Circle, Indianapolis, INDIANA 46221
Item 2.
(a)	Name of person filing: PRIMECAP MANAGEMENT CO/CA/
(b)	Address or principal business office or, if none, residence: 177 EAST COLORADO BLVD. 11TH FLOOR PASADENA, California 91105
(c)	Citizenship: PRIMECAP MANAGEMENT CO/CA/ - UNITED STATES
(d)	Title of class of securities: COM
(e)	CUSIP No.: 28414H103
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: 45,840,956
(b)	Percent of class: 9.22 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: PRIMECAP MANAGEMENT CO/CA/ - 45,573,360
	(ii) Shared power to vote or to direct the vote: PRIMECAP MANAGEMENT CO/CA/ - 0
	(iii) Sole power to dispose or to direct the disposition of: PRIMECAP MANAGEMENT CO/CA/ - 45,840,956
	(iv) Shared power to dispose or to direct the disposition of: PRIMECAP MANAGEMENT CO/CA/ - 0
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.
	Not Applicable
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.

PRIMECAP MANAGEMENT CO/CA/

Signature:	Jorge A. Rodriguez
Name/Title:	Deputy Chief Compliance Officer
Date:	05/12/2026