Travelers Property Casualty S-8 POSRegistration of securities for employees (post-effective amendment)

As filed with the Securities and Exchange Commission on April 3, 2020

Registration Statement FileNo. 333-98365

Registration Statement FileNo. 333-84740

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

POST-EFFECTIVE AMENDMENT NO. 1

TO

FORM S-8

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Travelers Property Casualty Corp.

(Exact name of registrant as specified in its charter)

One Tower Square

Hartford, Connecticut 06183

(Address of Principal Executive Offices) (Zip Code)

Travelers 401(k) Savings Plan

Travelers Property Casualty Corp. 2002 Stock Incentive Plan

(Full title of the plans)

Christine K. Kalla

Executive Vice President and General Counsel

Travelers Property Casualty Corp.

385 Washington Street

St. Paul, Minnesota 55102

(651)310-7911

(Name, address and telephone number, including area code, of agent for service)

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, anon-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.  ☐

Explanatory Note

Travelers Property Casualty Corp. (the “Company”) is filing these post-effective amendments (these “Post-Effective Amendments”) to the following registration statements (together, the “Registration Statements”), which have been previously filed with the Securities and Exchange Commission (the “SEC”), to deregister any and all shares of the Company’s Class A Common Stock, $.01 par value per share, and Class B Common Stock, $.01 par value per share (together, the “Common Stock”), registered but unsold or otherwise unissued under each such Registration Statement as of the date hereof:

The purpose of these Post-Effective Amendments is to deregister such portion of the Common Stock previously registered under the Registration Statements that has not been sold or is otherwise unissued under each such Registration Statement as of the date hereof, as the Company no longer grants awards or issues Common Stock under either the Travelers 401(k) Savings Plan or the Travelers Property Casualty Corp. 2002 Stock Incentive Plan.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Company certifies that it has reasonable grounds to believe that it meets all of the requirements for filing onForm S-8 and has duly caused these Post-Effective Amendments to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of St. Paul, State of Minnesota, on April 3, 2020.

Pursuant to the requirements of the Securities Act of 1933, these Post-Effective Amendments have been signed by the following persons in the capacities and on the dates indicated.