Summary Prospectus by Investment Company (Form 497K)

Summary Prospectus March 1, 2026
		T. ROWE PRICE
		U.S. Equity Research Fund
	PRCOX PCCOX PACOX RRCOX PCUZX	Investor Class I Class Advisor Class R Class Z Class
	The Securities and Exchange Commission (SEC) has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense. Before you invest, you may want to review the fund's prospectus, which contains more information about the fund and its risks. You can find the fund's prospectus, shareholder reports, and other information about the fund online at troweprice.com/prospectus. You can also get this information at no cost by calling 1-800-638-5660, by sending an e-mail request to [email protected], or by contacting your financial intermediary. This Summary Prospectus incorporates by reference the fund's prospectus, dated March 1, 2026, as amended or supplemented, and Statement of Additional Information, dated March 1, 2026, as amended or supplemented.

SUMMARY

1

Investment Objective(s)

The fund seeks to provide long-term capital growth by investing primarily in U.S. common stocks.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the fund, which are not reflected in the table or example below.

Fees and Expenses of the Fund
		Investor Class		I Class		Advisor Class		R Class		Z Class
Shareholder fees (fees paid directly from your investment)
Maximum account fee		$20	a	-		-		-		-
Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Management fees		0.32	%	0.32	%	0.32	%	0.32	%	0.32	%
Distribution and service (12b-1) fees		-		-		0.25		0.50		-
Other expenses		0.13		0.02		0.26		0.34		1.67
Total annual fund operating expenses		0.45		0.34		0.83		1.16		1.99
Fee waiver/expense reimbursement		-		-		-		-		(1.99	)b
Total annual fund operating expenses after fee waiver/expense reimbursement		0.45		0.34		0.83		1.16		0.00	b
a	Subject to certain exceptions and account minimums, accounts are charged an annual $20 fee.
b	T. Rowe Price Associates, Inc., has contractually agreed to waive and/or bear all the Z Class' expenses (excluding interest; expenses related to borrowings, taxes, and brokerage; nonrecurring, extraordinary expenses; and acquired fund fees and expenses) in their entirety. T. Rowe Price Associates, Inc., expects this fee waiver and/or expense reimbursement arrangement to remain in place indefinitely, and the agreement may only be amended or terminated with approval by the fund's Board of Directors.

Example This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund's operating expenses remain the same. The example also assumes that any current expense limitation arrangement remains in place for the period noted in the previous table; therefore, the figures have been adjusted to reflect fee waivers or expense reimbursements only in the periods for which the expense limitation arrangement is expected to continue. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

T. ROWE PRICE

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		1 Year				3 Years				5 Years				10 Years
Investor Class		$	46			$	144			$	252			$	567
I Class			35				109				191				431
Advisor Class			85				265				460				1,025
R Class			118				368				638				1,409
Z Class			0				0				0				0

Portfolio Turnover The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the fund's shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 47.3% of the average value of its portfolio.

Investments, Risks, and Performance

Principal Investment Strategies

The fund normally invests at least 80% of its net assets (plus any borrowings for investment purposes) in U.S. equity securities. The fund relies on MSCI Inc., a third-party provider of benchmark indexes and data services, or another unaffiliated data provider to determine the country assigned to a security. Any derivatives that provide exposure to the investment focus suggested by the fund's name, or to one or more market risk factors associated with the investment focus suggested by the fund's name, are counted (as applicable) toward compliance with the fund's 80% investment policy.

The strategy attempts to create a portfolio with similar characteristics to the S&P 500 Stock Index (Index) with the potential to provide excess returns relative to the Index. The fund uses a disciplined portfolio construction process whereby it weights each sector and industry approximately the same as the Index. Within each sector and industry, the weighting of individual fund holdings can vary significantly from their weighting within the Index.

The fund attempts to outperform the Index by overweighting those stocks that are viewed favorably relative to their weighting in the Index, and underweighting or avoiding those stocks that are viewed negatively.

A portfolio oversight team, which includes the portfolio managers, is responsible for the overall structure of the fund and for developing rules for portfolio construction. The portfolio oversight team uses T. Rowe Price's fundamental research by assigning equity analysts to select stocks for the fund within industries where they have focused expertise. The equity analysts are responsible for selecting stocks and determining the stocks' weights within their industry-specific portfolios, subject to the oversight and discretion of the portfolio managers who work closely with the analysts.

The fund generally remains fully invested (less than 5% in cash reserves) and seeks to be sector neutral when compared to the Index. While the majority of assets are invested in large-cap U.S. common stocks, the fund may occasionally have some small- and mid-cap exposure in keeping with the fund's objective.

SUMMARY

3

At times, the fund may have a significant portion of its assets invested in the same economic sector, such as the information technology sector.

Principal Risks

As with any fund, there is no guarantee that the fund will achieve its objective(s). The fund's share price fluctuates, which means you could lose money by investing in the fund. The principal risks of investing in this fund, which may be even greater in unfavorable or uncertain market conditions, are summarized as follows:

Market conditions: The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries, or the overall securities markets. A variety of factors can increase the volatility of the fund's holdings and markets generally, including geopolitical developments (such as trade and tariff arrangements, sanctions, and cybersecurity attacks), recessions, inflation, rapid interest rate changes, war, military conflict, acts of terrorism, natural disasters, and outbreaks of infectious illnesses or other widespread public health issues (such as the coronavirus pandemic) and related governmental and public responses. Certain events may cause instability across global markets, including reduced liquidity and disruptions in trading markets, while some events may affect certain geographic regions, countries, sectors, and industries more significantly than others. Government intervention in markets may impact interest rates, market volatility, and security pricing. These adverse developments may cause broad declines in market value due to short-term market movements or for significantly longer periods during more prolonged market downturns.

Stock investing: Stocks generally fluctuate in value more than bonds and may decline significantly over short time periods. There is a chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising and falling prices. The value of stocks held by the fund may decline due to general weakness or volatility in the stock markets in which the fund invests or because of factors that affect a particular company or industry.

Sector exposure: Issuers in the same economic sector may be similarly affected by economic or market events, making the fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly.

Information technology sector: Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on their profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources, or personnel.

Index correlation: Because the fund weights each sector and industry similar to the Index, the fund's ability to broadly reallocate its portfolio due to changes in outlook for a particular sector or industry is less than other actively managed funds with greater flexibility to overweight or underweight certain industries due to changes in market conditions. As a result, the fund's performance may lag the performance of other actively managed funds with more flexible investment programs.

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Large-cap stocks: Securities issued by large-cap companies tend to be less volatile than securities issued by small- and mid-cap companies. However, large-cap companies may not be able to attain the high growth rates of successful small- and mid-cap companies, especially during strong economic periods, and may be unable to respond as quickly to competitive challenges.

Active management: The fund's overall investment program and holdings selected by the fund's investment adviser may underperform the broad markets, relevant indices, or other funds with similar objectives and investment strategies.

Cybersecurity breaches: The fund could be harmed by intentional cyberattacks and other cybersecurity breaches, including unauthorized access to the fund's assets, confidential information, or other proprietary information. In addition, a cybersecurity breach could cause one of the fund's service providers or financial intermediaries to suffer unauthorized data access, data corruption, or loss of operational functionality.

Performance

The following performance information provides some indication of the risks of investing in the fund. The fund's performance information represents only past performance (before and after taxes) and is not necessarily an indication of future results.

The following bar chart illustrates how much returns can differ from year to year by showing calendar year returns and the best and worst calendar quarter returns during those years for the fund's Investor Class. Returns for other share classes vary since they have different expenses.

SUMMARY

5

U.S. EQUITY RESEARCH FUND

Calendar Year Returns

	Quarter Ended	Total Return			Quarter Ended	Total Return
Best Quarter	6/30/20	20.60%		Worst Quarter	3/31/20	-19.82%

The following table shows the average annual total returns for each class of the fund that has been in operation for at least one full calendar year. The fund's performance information included in the table is compared with a regulatory required index that represents an overall securities market (Russell 3000® Index). In addition, the table may also include one or more indexes that align to the fund's investment strategy.

In addition, the table shows hypothetical after-tax returns to demonstrate how taxes paid by a shareholder may influence returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or an IRA. After-tax returns are shown only for the Investor Class and will differ for other share classes.

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Average Annual Total Returns
			Periods ended
			December 31, 2025
												Since		Inception
			1 Year			5 Years			10 Years			inception		date
	Investor Class													11/30/1994
		Returns before taxes	16.34	%		14.68	%		15.14	%		-	%
		Returns after taxes on distributions	16.02			14.21			14.34			-
		Returns after taxes on distributions and sale
		of fund shares	9.90			11.69			12.45			-
	I Class													11/29/2016
		Returns before taxes	16.49			14.80			-			15.81
	Advisor Class													12/31/2004
		Returns before taxes	15.92			14.24			14.75			-
	R Class													12/31/2004
		Returns before taxes	15.54			13.91			14.41			-
	Z Class													11/23/2021
		Returns before taxes	16.87			-			-			12.22
	Russell 3000® Index (reflects no deduction for fees, expenses, or taxes)
												14.52	a
			17.15			13.15			14.29			10.20	b
	S&P 500 Index (reflects no deduction for fees, expenses, or taxes)
												15.20	a
			17.88			14.42			14.82			11.28	b
	Lipper Large-Cap Core Funds Index
												14.09	a
			17.72			13.65			13.84			10.89	b

a

Return since 11/29/16.

b

Return since 11/23/21.

Updated performance information is available through troweprice.com.

Management

Investment Adviser T. Rowe Price Associates, Inc. (T. Rowe Price or Price Associates)

Name	Title	Managed Fund Since	Joined Investment Adviser
Ann Holcomb	Co-Portfolio Manager and Cochair of Investment Advisory Committee	2015	1996
Jason Nogueira	Co-Portfolio Manager and Cochair of Investment Advisory Committee	2021	2004
Jason Polun	Co-Portfolio Manager and Cochair of Investment Advisory Committee	2015	2003

Purchase and Sale of Fund Shares

The Investor Class, Advisor Class, and R Class generally require a $2,500 minimum initial investment ($1,000 minimum initial investment if opening an IRA, a custodial account for a minor, or a small business retirement plan account). Additional purchases generally require a $100 minimum. These investment minimums generally are waived for financial intermediaries and certain employer-sponsored retirement plans submitting orders on behalf of their customers. Advisor Class and R Class shares may generally only be purchased through a financial intermediary or retirement plan.

SUMMARY

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The I Class requires a $500,000 minimum initial investment per fund per account registration, although the initial investment minimum generally is waived or reduced for financial intermediaries, eligible retirement plans, certain accounts for which T. Rowe Price or its affiliates have discretionary investment authority, qualifying directly held accounts, and certain other accounts.

The Z Class is only available to funds managed by T. Rowe Price and other advisory clients of T. Rowe Price or its affiliates that are subject to a contractual fee for investment management services. There is no minimum initial investment and no minimum for additional purchases.

For investors holding shares of the fund directly with T. Rowe Price, you may purchase, redeem, or exchange fund shares by mail; by telephone (1-800-225-5132 for IRAs and nonretirement accounts; 1-800-492-7670 for small business retirement plans; and 1-800-638-8790 for institutional investors and financial intermediaries); or, for certain other accounts, by accessing your account online through troweprice.com.

If you hold shares through a financial intermediary or retirement plan, you must purchase, redeem, and exchange shares of the fund through your intermediary or retirement plan. You should check with your intermediary or retirement plan to determine the investment minimums that apply to your account.

Tax Information

Any dividends or capital gains are declared and paid annually, usually in December. Redemptions or exchanges of fund shares and distributions by the fund, whether or not you reinvest these amounts in additional fund shares, generally may be taxed as ordinary income or capital gains unless you invest through a tax-deferred account (in which case you will be taxed upon withdrawal from such account).

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the fund through a broker-dealer or other financial intermediary (such as a bank), the fund and its related companies may pay the intermediary for the sale of fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

T. Rowe Price Associates, Inc. 1307 Point Street Baltimore, MD 21231	F108-045 3/1/26