Lord Abbett Developing Growth Fund Class R4 LADSX Strategy

The investment seeks long-term growth of capital through a diversified and actively managed portfolio consisting of developing growth companies, many of which are traded over the counter. The fund invests in equity securities of companies that the portfolio management team believes demonstrate above-average, long-term growth potential. Under normal conditions, the fund invests at least 65% of its net assets in equity securities of small companies. It may invest up to 20% of its net assets in securities of foreign companies, including emerging market companies, ADRs, Global Depositary Receipts (“GDRs”), and other similar depositary receipts.