SUMMARY
PROSPECTUS

TBCIX

December 15, 2015

T. Rowe Price

Blue Chip Growth Fund—I Class

A fund seeking long-term capital growth through investments in stocks of large- and mid-cap companies with strong fundamentals and leading market positions. This class is generally available only to financial intermediaries and other institutional investors.

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 and other information about the fund online at troweprice.com/prospectus. You can also get this information at no cost by calling
1-800-638-8790 or by sending an e-mail request to info@troweprice.com. This Summary Prospectus incorporates by reference the fund’s prospectus, dated December 15, 2015, and Statement of Additional Information, dated December 15, 2015.

The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Summary 1

Investment Objective

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 and hold shares of the fund.

Fees and Expenses of the Fund’s I Class

Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Management fees	0.57%
Distribution and service (12b-1) fees	0.00%
Other expenses	0.01%
Total annual fund operating expenses	0.58%

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. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

1 year	3 years	5 years	10 years
$59	$186	$324	$726

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 fund 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 (for existing classes) was 32.5% of the average value of its portfolio.

Investments, Risks, and Performance

Principal Investment Strategies The fund will normally invest at least 80% of its net assets (including any borrowings for investment purposes) in the common stocks of large- and medium-sized blue chip growth companies. These are firms that, in our view, are well established in their industries and have the potential for above-average earnings growth. We focus on companies with leading market positions, seasoned management, and strong financial fundamentals. The fund’s investment approach reflects our belief that solid company fundamentals (with an emphasis on the potential for strong growth in earnings per share or operating cash flow) combined with a positive outlook for a company’s industry will ultimately reward investors with

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strong investment performance. Some of the companies we target for the fund should have good prospects for dividend growth, and the fund may at times invest significantly in stocks of technology companies.

In pursuing its investment objective, the fund has the discretion to deviate from its normal investment criteria. These situations might arise when the fund’s management believes a security could increase in value for a variety of reasons, including an extraordinary corporate event, a new product introduction or innovation, a favorable competitive development, or a change in management.

While most assets will typically be invested in U.S. common stocks, the fund may invest in foreign stocks in keeping with the fund’s objectives.

The fund may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into more promising opportunities.

Principal Risks As with any mutual fund, there is no guarantee that the fund will achieve its objective. 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 are summarized as follows:

Active management riskThe fund is subject to the risk that the investment adviser’s judgments about the attractiveness, value, or potential appreciation of the fund’s investments may prove to be incorrect. If the investments selected and strategies employed by the fund fail to produce the intended results, the fund could underperform other funds with similar objectives and investment strategies.

Risks of 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 a stock in which the fund invests may decline due to general weakness in the stock market or because of factors that affect a particular company or industry.

Investment style risk Different investment styles tend to shift in and out of favor depending on market conditions and investor sentiment. 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.

Market capitalization risk Although stocks issued by larger companies tend to have less overall volatility than stocks issued by smaller companies, larger companies may not be able to attain the high growth rates of successful smaller companies, especially during strong economic periods. In addition, larger companies may be less capable of

Summary 3

responding quickly to competitive challenges and industry changes, and may suffer sharper price declines as a result of earnings disappointments.

Industry risk To the extent the fund invests in specific industries or sectors, it may be more susceptible to developments affecting those industries and sectors. For example, the fund may at times have significant investments in technology companies, which could result in the fund performing poorly during a downturn in one or more of the industries that heavily impact technology companies. Technology companies can be adversely affected by, among other things, intense competition, earnings disappointments, and rapid obsolescence of products and services due to technological innovations or changing consumer preferences.

Foreign investing risk This is the risk that the fund’s investments in foreign securities 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.

Performance The Blue Chip Growth Fund—I Class has an inception date of December 17, 2015, and does not have a full calendar year of performance history. Performance for the class will be presented after the class has been in operation for one full calendar year. As a point of comparison, however, the following bar chart and table show calendar year returns and average annual total returns for the existing Investor Class of the Blue Chip Growth Fund (“Investor Class”). Because the Blue Chip Growth Fund—I Class is expected to have lower expenses than the Investor Class, its performance, had it existed over the periods shown, would have been higher. The Investor Class and the Blue Chip Growth Fund—I Class share the same portfolio. The bar chart and table provide some indication of the risks of investing in the fund by showing changes in the performance from year to year and how the Investor Class’ average annual returns for certain periods compare with the returns of a relevant broad-based market index, as well as with the returns of other comparative indexes that have investment characteristics similar to those of the fund.

The fund can also experience short-term performance swings, as shown by the best and worst calendar quarter returns during the years depicted for the Investor Class.

Performance information represents only past performance (before and after taxes) and does not necessarily indicate future results.

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In addition, the average annual total returns 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 individual retirement account. In some cases, the figure shown for “returns after taxes on distributions and sale of fund shares” may be higher than the figure shown for “returns before taxes” because the calculations assume the investor received a tax deduction for any loss incurred on the sale of shares.

Average Annual Total Returns
			Periods ended
			December 31, 2014
			1 Year		5 Years		10 Years
	Blue Chip Growth Fund
		Returns before taxes	9.28	%	16.70	%	8.81	%
		Returns after taxes on distributions	8.05		16.42		8.66
		Returns after taxes on distributions
		and sale of fund shares	6.23		13.54		7.23
	S&P 500 Index (reflects no deduction for fees, expenses, or taxes)		13.69		15.45		7.67
	Lipper Large-Cap Growth Funds Index		10.34		14.12		7.37

Summary 5

Current performance information may be obtained through troweprice.com or by calling 1-800-638-8790.

Management

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

Portfolio Manager	Title	Managed Fund Since	Joined Investment Adviser
Larry J. Puglia	Chairman of Investment Advisory Committee	1993	1990

Purchase and Sale of Fund Shares

The fund’s I Class generally requires a $1,000,000 minimum initial investment, although the minimum may be waived for certain accounts, such as retirement plans and financial intermediaries maintaining omnibus accounts. There is no minimum for subsequent purchases. If you hold shares through a retirement plan or financial intermediary, different investment minimums may apply to your account.

You may purchase, redeem, or exchange shares of the fund at any time by written request or by calling 1-800-638-8790 on any day the New York Stock Exchange is open for business. If you hold shares through a financial intermediary, you must purchase, redeem, and exchange shares through your intermediary.

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, may be taxed as ordinary income or capital gains unless you invest through a tax-deferred account (although you may be taxed upon withdrawal from such account).

Payments to Broker-Dealers and Other Financial Intermediaries

The fund and its investment adviser do not pay broker-dealers or other financial intermediaries for sales or related services of the fund’s I Class shares.

T. Rowe Price Associates, Inc.
100 East Pratt Street
Baltimore, MD 21202 R429-045 12/15/15