<PAGE>
PROSPECTUS DATED MARCH 6, 2000 PRICING SUPPLEMENT NO. 11 TO
PROSPECTUS SUPPLEMENT REGISTRATION STATEMENT NO. 333-30928
DATED MARCH 15, 2000 AUGUST 16, 2000
RULE 424(B)(3)
Donaldson, Lufkin & Jenrette, Inc.
MEDIUM-TERM NOTES
Due Nine Months or More from Date of Issue
THE MEDIUM-TERM NOTES, AS FURTHER DESCRIBED BELOW AND IN THE PROSPECTUS
SUPPLEMENT UNDER DESCRIPTION NOTES, WILL BEAR INTEREST FROM THE DATE OF ISSUANCE
UNTIL THE PRINCIPAL AMOUNT THEREOF IS PAID OR MADE AVAILABLE FOR PAYMENT AT THE
RATE SET FORTH BELOW.
<TABLE>
<S> <C> <C> <C>
Principal Amount: $ 100,000,000 Optional Conversion: N / A
Price To Public: 100.0000% Optional Repayment Date: Non-Call / Life
Underwriting Discount: .102%
Proceeds To Issuer: 99.898% Business Day Jurisdiction: New York
Settlement Date August 18, 2000 Initial Redemption N / A
(Original Issue Date): Percentage:
Specified Currency: US Dollars Initial Redemption Date: N / A
Authorized Denomination: $1,000 Annual Redemption N / A
Percentage Reduction:
Maturity Date: September 18, 2001 Book Entry Note or B / E
Certificated Note:
Interest Rate: 7.04% Fixed
Interest: $7,744,000.00
Interest Payment Date: At Maturity, or as Total Amount of OID: N / A
modified
Interest Determination Date: N/A Day Count: Act/360
CUSIP: 25766CCL6
First Interest Date: Maturity Date
Paying Agent: The Chase Manhattan Bank
Settlement: DTC#: 443
</TABLE>
CAPITALIZED TERMS NOT DEFINED ABOVE HAVE THE MEANINGS GIVEN TO SUCH TERMS IN THE
ACCOMPANYING PROSPECTUS SUPPLEMENT.
DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION
