SUMMARY PROSPECTUS May 1, 2024
		T. ROWE PRICE
		Blue Chip Growth Fund
TRBCX TBCIX PABGX RRBGX TRZBX		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 info@troweprice.com, or by contacting your financial intermediary. This Summary Prospectus incorporates by reference the fund’s prospectus, dated May 1, 2024, as amended or supplemented, and Statement of Additional Information, dated May 1, 2024, as amended or supplemented.

SUMMARY 1

Investment Objective(s)

The fund seeks to provide long-term capital growth. Income is a secondary objective.

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		0.55	%	0.55	%	0.55	%	0.55	%	0.55	%
Distribution and service (12b-1) fees		—		—		0.25		0.50		—
Other expenses		0.15		0.03		0.17		0.18		0.01
Total annual fund operating expenses		0.70		0.58		0.97		1.23		0.56
Fee waiver/expense reimbursement		—		—		—		—		(0.56	)b
Total annual fund operating expenses after fee waiver/expense reimbursement		0.70		0.58		0.97		1.23		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:

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	1 Year		3 Years		5 Years		10 Years
Investor Class	$	72	$	224	$	390	$	871
I Class		59		186		324		726
Advisor Class		99		309		536		1,190
R Class		125		390		676		1,489
Z Class		0		0		0		0

Portfolio TurnoverThe 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 9.8% 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 (including any borrowings for investment purposes) in the common stocks of large- and mid-cap blue chip growth companies. Blue chip growth companies are firms that, in the investment adviser’s view, are well established in their industries and have the potential for above-average earnings growth. The fund focuses on companies with leading market positions, seasoned management, and strong financial fundamentals. The fund’s investment approach reflects the belief that solid company fundamentals (with emphasis on the potential for above-average growth) combined with a positive industry outlook will result in a higher stock price. Some of the companies the adviser targets for the fund should have good prospects for dividend growth.

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

While most assets are typically invested in U.S. common stocks, the fund may invest in foreign stocks in keeping with its objective(s).

The fund is “nondiversified,” meaning it may invest a greater portion of its assets in fewer issuers than is permissible for a “diversified” fund.

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 bad or uncertain market conditions, are summarized as follows:

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

SUMMARY 3

markets in which the fund invests or because of factors that affect a particular company or industry.

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 economic, political, or regulatory developments, 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 (including sanctions). 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.

Growth investing: The fund’s growth approach to investing could cause it to underperform other stock funds that employ a different investment style. Growth stocks tend to be more volatile than certain other types of stocks and their prices may fluctuate more dramatically than the overall stock market. A stock with growth characteristics can have sharp price declines due to decreases in current or expected earnings and may lack dividends that can help cushion its share price in a declining market.

Large- and mid-cap stocks: Securities issued by large- and mid-cap companies tend to be less volatile than securities issued by small-cap companies. However, large-cap companies may not be able to attain the high growth rates of successful small-cap companies, especially during strong economic periods, and may be unable to respond as quickly to competitive challenges. The fund’s share price could fluctuate more than the share price of a fund that invests only in large-cap companies as stocks of mid-cap companies entail greater risk and are usually more volatile than stocks of large-cap companies.

Dividend-paying stocks: The fund’s emphasis on dividend-paying stocks could cause the fund to underperform similar funds that invest without consideration of a company’s track record of paying dividends. Stocks of companies with a history of paying dividends may not participate in a broad market advance to the same degree as most other stocks, and a sharp rise in interest rates or economic downturn could cause a company to unexpectedly reduce or eliminate its dividend.

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.

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Foreign investing: Investments in the securities of non-U.S. issuers may be adversely affected by local, political, social, and economic conditions overseas; greater volatility; reduced liquidity; or decreases in foreign currency values relative to the U.S. dollar. The risks of investing outside the U.S. are heightened for any investments in emerging markets, which are susceptible to greater volatility than investments in developed markets.

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.

Nondiversification: As a nondiversified fund, the fund has the ability to invest a larger percentage of its assets in the securities of a smaller number of issuers than a diversified fund. As a result, poor performance by a single issuer could adversely affect fund performance more than if the fund were invested in a larger number of issuers. The fund’s share price can be expected to fluctuate more than that of a similar fund that is more broadly diversified.

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

BLUE CHIP GROWTH FUND

Calendar Year Returns

	Quarter Ended	Total Return		Quarter Ended	Total Return
Best Quarter	6/30/20	27.81%	Worst Quarter	6/30/22	-25.01%

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, and also compares the returns with the returns of a relevant broad-based market index, as well as with the returns of one or more comparative indexes that have investment characteristics similar to those of the fund, if applicable.

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, 2023
									Since		Inception
			1 Year		5 Years		10 Years		inception		date
	Investor Class										06/30/1993
		Returns before taxes	49.36	%	13.58	%	12.44	%	—	%
		Returns after taxes on distributions	48.15		12.55		11.56		—
		Returns after taxes on distributions and sale
		of fund shares	30.07		10.85		10.22		—
	I Class										12/17/2015
		Returns before taxes	49.55		13.73		—		13.08
	Advisor Class										03/31/2000
		Returns before taxes	48.97		13.28		12.14		—
	R Class										09/30/2002
		Returns before taxes	48.60		12.99		11.85		—
	Z Class										02/22/2021
		Returns before taxes	50.40		—		—		2.44
	S&P 500 Index (reflects no deduction for fees, expenses, or taxes)
									13.19	a
			26.29		15.69		12.03		9.23	b
	Russell 1000® Growth Index (reflects no deduction for fees, expenses, or taxes)
									16.21	a
			42.68		19.50		14.86		8.73	b
	Lipper Large-Cap Growth Funds Index
									14.09	a
			42.03		16.94		12.89		4.87	b

aReturn since 12/17/15.

bReturn since 2/22/21.

Updated performance information is available through troweprice.com.

Management

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

Portfolio Manager	Title	Managed Fund Since	Joined Investment Adviser
Paul Greene II	Chair of Investment Advisory Committee	2021	2006

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

SUMMARY 7

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.

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 client accounts for which T. Rowe Price or its affiliates have discretionary investment authority, qualifying directly held accounts, and certain other types of 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. 100 East Pratt Street Baltimore, MD 21202	F93-045 5/1/24