<PAGE>

                                                                   EXHIBIT 10.25

THIS WARRANT AND THE UNDERLYING SECURITIES HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED (THE "ACT") OR STATE SECURITIES LAWS. THEY
MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN
EFFECTIVE REGISTRATION STATEMENT AS TO SUCH SECURITIES UNDER THE ACT OR AN
OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT
REQUIRED.

           WARRANT TO PURCHASE SERIES D CONVERTIBLE PREFERRED STOCK

No. PDW-1                                                December ___, 1999

                         Void After December ___, 2002

     This Certifies That, Gilde IT Fund, with its principal office at P.O. Box
85067, 3508 AB Utrecht Netherlands, or assigns (the "Holder"), is entitled to
subscribe for and purchase at the Exercise Price (defined below) from Docent,
Inc., a Delaware Company, with its principal office at 2444 Charleston Road,
Mountain View, CA 94043 (the "Company") up to Two Hundred Fifty Thousand
(250,000) shares of the Series D Convertible Preferred Stock of the Company (the
"Series D Preferred"), contingent on certain conditions being met by Holder
contained in that certain Collaboration Agreement, dated as of September __,
1999 by and between the Company and Holder, such terms and conditions attached
hereto as Exhibit A.

     1.   Definitions. As used herein, the following terms shall have the
following respective meanings:

          (a) "Exercise Period" shall mean the period commencing with the date
hereof and ending three years from the date hereof.

          (b) "Exercise Price" shall mean $2.86 per share, subject to adjustment
pursuant to Section 5 below.

          (c) "Exercise Shares" shall mean the shares of the Series D Preferred
issuable upon exercise of this Warrant.

     2.   Exercise of Warrant.  The rights represented by this Warrant may be
exercised in whole or in part at any time during the Exercise Period, by
delivery of the following to the Company at its address set forth above (or at
such other address as it may designate by notice in writing to the Holder):

          (a)  An executed Notice of Exercise in the form attached hereto;

          (b)  Payment of the Exercise Price either (i) in cash or by check, or
(ii) by net exercise as set forth in Section 2.1 herein; and

          (c)  This Warrant.
<PAGE>

          Upon the exercise of the rights represented by this Warrant, a
certificate or certificates for the Exercise Shares so purchased, registered in
the name of the Holder or persons affiliated with the Holder, if the Holder so
designates, shall be issued and delivered to the Holder within a reasonable time
after the rights represented by this Warrant shall have been so exercised.

     The person in whose name any certificate or certificates for Exercise
Shares are to be issued upon exercise of this Warrant shall be deemed to have
become the holder of record of such shares on the date on which this Warrant was
surrendered and payment of the Exercise Price was made, irrespective of the date
of delivery of such certificate or certificates, except that, if the date of
such surrender and payment is a date when the stock transfer books of the
Company are closed, such person shall be deemed to have become the holder of
such shares at the close of business on the next succeeding date on which the
stock transfer books are open.

     2.1. Net Exercise. Notwithstanding any provisions herein to the contrary,
if the fair market value of one share of the Company's Series D Preferred is
greater than the Exercise Price (at the date of calculation as set forth below),
in lieu of exercising this Warrant by payment of cash, the Holder may elect to
receive shares equal to the value (as determined below) of this Warrant (or the
portion thereof being canceled) by surrender of this Warrant at the principal
office of the Company together with the properly endorsed Notice of Exercise in
which event the Company shall issue to the Holder a number of shares of Series D
Preferred computed using the following formula:

     X = Y (A-B)
         -------
            A

Where     X =  the number of shares of Series D Preferred to be issued to the
               Holder

          Y =  the number of shares of Series D Preferred purchasable under the
               Warrant or, if only a portion of the Warrant is being exercised,
               the number of shares underlying the Warrant being exercised (at
               the date of such calculation)

          A =  the fair market value of one share of the Company's Series D
               Preferred (at the date of such calculation)

          B =  Exercise Price (as adjusted to the date of such calculation)

     For purposes of the above calculation, the fair market value of one share
of Series D Preferred shall be determined by the Company's Board of Directors in
good faith; provided, however, that in the event that this Warrant is exercised
pursuant to this Section 2.1 in connection with the Company's initial public
offering of its Common Stock, the fair market value per share shall be the per
share offering price to the public of the Company's initial public offering.
<PAGE>

     3.   Covenants of the Company.

     3.1. Covenants as to Exercise Shares. The Company covenants and agrees that
all Exercise Shares that may be issued upon the exercise of the rights
represented by this Warrant will, upon issuance, be validly issued and
outstanding, fully paid and nonassessable, and free from all taxes, liens and
charges with respect to the issuance thereof. The Company further covenants and
agrees that the Company will at all times during the Exercise Period, have
authorized and reserved, free from preemptive rights, a sufficient number of
shares of its Series D Preferred to provide for the exercise of the rights
represented by this Warrant. If at any time during the Exercise Period the
number of authorized but unissued shares of Series D Preferred shall not be
sufficient to permit exercise of this Warrant, the Company will take such
corporate action as may, in the opinion of its counsel, be necessary to increase
its authorized but unissued shares of Series D Preferred to such number of
shares as shall be sufficient for such purposes.

     3.2. No Impairment. Except and to the extent as waived or consented to by
the Holder, the Company will not, by amendment of its Certificate of
Incorporation or through any reorganization, transfer of assets, consolidation,
merger, dissolution, issue or sale of securities or any other voluntary action,
avoid or seek to avoid the observance or performance of any of the terms to be
observed or performed hereunder by the Company, but will at all times in good
faith assist in the carrying out of all the provisions of this Warrant and in
the taking of all such action as may be necessary or appropriate in order to
protect the exercise rights of the Holder against impairment.

     3.3. Notices of Record Date. In the event of any taking by the Company of a
record of the holders of any class of securities for the purpose of determining
the holders thereof who are entitled to receive any dividend (other than a cash
dividend which is the same as cash dividends paid in previous quarters) or other
distribution, the Company shall mail to the Holder, at least ten (10) days prior
to the date specified herein, a notice specifying the date on which any such
record is to be taken for the purpose of such dividend or distribution.

     4.   Representations of Holder.

     4.1. Acquisition of Warrant for Personal Account. The Holder represents and
warrants that it is acquiring the Warrant solely for the Holder's account for
investment and not with a view to or for sale or distribution of said Warrant or
any part thereof.  The Holder also represents that the entire legal and
beneficial interests of the Warrant and Exercise Shares the Holder is acquiring
is being acquired for, and will be held for the Holder's account only.

     4.2. Securities Are Not Registered.

          (a)  The Holder understands that the Warrant and the Exercise Shares
     have not been registered under the Securities Act of 1933, as amended (the
     "Act") on the basis that no distribution or public offering of the stock of
     the Company is to be effected. The Holder realizes that the basis for the
     exemption may not be present if, notwithstanding the Holder's
     representations, the Holder has a present intention of acquiring the
     securities for a fixed or determinable period in the future, selling (in
     connection with a distribution or otherwise),
<PAGE>

granting any participation in, or otherwise distributing the securities. The
Holder has no such present intention.

          (b)  The Holder recognizes that the Warrant and the Exercise Shares
must be held indefinitely unless they are subsequently registered under the Act
or an exemption from such registration is available. The Holder recognizes that
the Company has no obligation to register the Warrant or the Exercise Shares of
the Company, or to comply with any exemption from such registration.

          (c)  The Holder is aware that neither the Warrant nor the Exercise
Shares may be sold pursuant to Rule 144 adopted under the Act unless certain
conditions are met, including, among other things, the existence of a public
market for the shares, the availability of certain current public information
about the Company, the resale following the required holding period under Rule
144 and the number of shares being sold during any three month period not
exceeding specified limitations. Holder is aware that the conditions for resale
set forth in Rule 144 have not been satisfied and that the Company presently has
no plans to satisfy these conditions in the foreseeable future.

     4.3. Disposition of Warrant and Exercise Shares.

          (a)  The Holder further agrees not to make any disposition of all or
any part of the Warrant or Exercise Shares in any event unless and until:

               (i)   The Company shall have received a letter secured by the
Holder from the Securities and Exchange Commission stating that no action will
be recommended to the Commission with respect to the proposed disposition; or

               (ii)  There is then in effect a registration statement under the
Act covering such proposed disposition and such disposition is made in
accordance with said registration statement; or

               (iii) The Holder shall have notified the Company of the proposed
disposition and shall have furnished the Company with a detailed statement of
the circumstances surrounding the proposed disposition, and if reasonably
requested by the Company, the Holder shall have furnished the Company with an
opinion of counsel, reasonably satisfactory to the Company, for the Holder to
the effect that such disposition will not require registration of such Warrant
or Exercise Shares under the Act or any applicable state securities laws.

          (b)  The Holder understands and agrees that all certificates
evidencing the shares to be issued to the Holder may bear the following legend:

     THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
     ACT OF 1933, AS AMENDED (THE "ACT") OR STATE SECURITIES LAWS.
     THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED
     IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE
     SECURITIES UNDER THE ACT
<PAGE>

     OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH
     REGISTRATION IS NOT REQUIRED.

          (c)  The Holder hereby agrees not to sell or otherwise transfer or
dispose of all or any part of this Warrant or the Exercise Shares during a
period specified by the representative of the underwriters of Common Stock (not
to exceed one hundred eighty (180) days) following the effective date of the
registration statement of the Company filed under the Act. Holder further agrees
that the Company may impose stop-transfer instructions with respect to
securities subject to the foregoing restrictions until the end of such period.

     5.   Adjustment of Exercise Price. In the event of changes in the
outstanding Series D Preferred of the Company by reason of stock dividends,
split-ups, recapitalizations, reclassifications, combinations or exchanges of
shares, separations, reorganizations, liquidations, or the like, the number and
class of shares available under the Warrant in the aggregate and the Exercise
Price shall be correspondingly adjusted to give the Holder of the Warrant, on
exercise for the same aggregate Exercise Price, the total number, class, and
kind of shares as the Holder would have owned had the Warrant been exercised
prior to the event and had the Holder continued to hold such shares until after
the event requiring adjustment; provided, however, that such adjustment shall
not be made with respect to, and this Warrant shall terminate if not exercised
prior to, the events set forth in Section 7 below. The form of this Warrant need
not be changed because of any adjustment in the number of Exercise Shares
subject to this Warrant.

     6.   Fractional Shares.  No fractional shares shall be issued upon the
exercise of this Warrant as a consequence of any adjustment pursuant hereto.
All Exercise Shares (including fractions) issuable upon exercise of this Warrant
may be aggregated for purposes of determining whether the exercise would result
in the issuance of any fractional share.  If, after aggregation, the exercise
would result in the issuance of a fractional share, the Company shall, in lieu
of issuance of any fractional share, pay the Holder otherwise entitled to such
fraction a sum in cash equal to the product resulting from multiplying the then
current fair market value of an Exercise Share by such fraction.

     7.   Notice of Event.  In the event of, at any time during the Exercise
Period, an initial public offering of securities of the Company registered under
the Act, or any capital reorganization, or any reclassification of the capital
stock of the Company (other than a change in par value or from par value to no
par value or no par value to par value or as a result of a stock dividend or
subdivision, split-up or combination of shares), or the consolidation or merger
of the Company with or into another corporation (other than a merger solely to
effect a reincorporation of the Company into another state), or the sale or
other disposition of all or substantially all the properties and assets of the
Company in its entirety to any other person, the Company shall provide to the
Holder twenty (20) days advance written notice of such public offering,
reorganization, reclassification, consolidation, merger or sale or other
disposition of the Company's assets.  Should the Series D Preferred convert, by
virtue of one of transactions contemplated above or for any other reason, into
Common Stock of the Company, then the exercise of this warrant shall be for
Common Stock of the Company.
<PAGE>

     8.   No Stockholder Rights. This Warrant in and of itself shall not entitle
the Holder to any voting rights or other rights as a stockholder of the Company.

     9.   Registration Rights. The Company will cause this Warrant to be
included in the definition of "Series D Stock" pursuant to that certain Amended
and Restated Investor Rights Agreement dated as of August 27, 1999, when the
Company amends such agreement pursuant to any future financing.

     10.  Transfer of Warrant.  Subject to applicable laws, the restriction on
transfer set forth on the first page of this Warrant, this Warrant and all
rights hereunder are transferable, by the Holder in person or by duly authorized
attorney, upon delivery of this Warrant and the form of assignment attached
hereto to any transferee designated by Holder.  The transferee shall sign an
investment letter in form and substance, substantially the same as Section 4 of
this Warrant, and satisfactory to the Company.

     11.  Lost, Stolen, Mutilated or Destroyed Warrant. If this Warrant is lost,
stolen, mutilated or destroyed, the Company may, on such terms as to indemnity
or otherwise as it may reasonably impose (which shall, in the case of a
mutilated Warrant, include the surrender thereof), issue a new Warrant of like
denomination and tenor as the Warrant so lost, stolen, mutilated or destroyed.
Any such new Warrant shall constitute an original contractual obligation of the
Company, whether or not the allegedly lost, stolen, mutilated or destroyed
Warrant shall be at any time enforceable by anyone.

     12.  Notices, etc. All notices and other communications required or
permitted hereunder shall be in writing and shall be sent by telex, telegram,
express mail or other form of rapid communications, if possible, and if not then
such notice or communication shall be mailed by first-class mail, postage
prepaid, addressed in each case to the party entitled thereto at the following
addresses: (a) if to the Company, to Docent, Inc., Attention: President, 2444
Charleston Road, Mountain View, CA 94043 and (b) if to the Holder, to President,
P.O. Box 85067, 3508 AB Utrecht Netherlands, or at such other address as one
party may furnish to the other in writing. Notice shall be deemed effective on
the date dispatched if by personal delivery, telecopy, telex or telegram, two
days after mailing if by express mail, or three days after mailing if by first-
class mail.

     13.  Acceptance.  Receipt of this Warrant by the Holder shall constitute
acceptance of and agreement to all of the terms and conditions contained herein.

     14.  Governing Law. This Warrant and all rights, obligations and
liabilities hereunder shall be governed by the laws of the State of California
without giving effect to principles of conflict of laws. Any legal action or
other legal proceeding relating to this Warrant must be brought or otherwise
commenced in a state or federal court located in the counties of San Francisco,
San Mateo or Santa Clara in the State of California. Each of the Company and the
Holder irrevocably waives, to the fullest extent permitted by law, any objection
which it may now or hereafter have to the laying of the laying of the venue of
any such proceeding brought in such a court and any claim that any such
proceeding brought in such a court has been brought in an inconvenient forum.
<PAGE>

     In Witness Whereof, the Company has caused this Warrant to be granted by
its duly authorized officer as of December __, 1999.

                              Docent, Inc.

                              By _______________________________
                                 David R. Ellett
                                 President and Chief Executive Officer
<PAGE>

                                   Exhibit A

Gilde will actively support the Company and be involved in the European
operations by:

 .    Helping recruit the members of the European management team through Gilde's
     extensive contact network and, if necessary, executive search firms;

 .    Helping the Company with senior level introductions to European top-tier
     players in the Company's commercial focus areas;

 .    Introducing the Company to relevant European content providers; and

 .    Introducing the company to senior level people in the top-tier European
     consultancy organizations.
<PAGE>

                               NOTICE OF EXERCISE

TO:  Docent, Inc.

     (1)  [_]  The undersigned hereby elects to purchase ________ shares of the
Series D Convertible Preferred Stock of Docent, Inc. (the "Company") pursuant to
the terms of the attached Warrant, and tenders herewith payment of the exercise
price in full, together with all applicable transfer taxes, if any.

          [_]  The undersigned hereby elects to purchase ________ shares of the
Series D Convertible Preferred Stock of Docent, Inc. (the "Company") pursuant to
the terms of the net exercise provisions set forth in Section 2.1 of the
attached Warrant, and shall tender payment of all applicable transfer taxes, if
any.

     (2)  Please issue a certificate or certificates representing said shares of
Series D Convertible Preferred Stock in the name of the undersigned or in such
other name as is specified below:

                           ________________________
                                    (Name)

                           ________________________
                           ________________________
                                   (Address)

     (3)  The undersigned represents that (i) the aforesaid shares of Series D
Convertible Preferred Stock are being acquired for the account of the
undersigned for investment and not with a view to, or for resale in connection
with, the distribution thereof and that the undersigned has no present intention
of distributing or reselling such shares; (ii) the undersigned is aware of the
Company's business affairs and financial condition and has acquired sufficient
information about the Company to reach an informed and knowledgeable decision
regarding its investment in the Company; (iii) the undersigned is experienced in
making investments of this type and has such knowledge and background in
financial and business matters that the undersigned is capable of evaluating the
merits and risks of this investment and protecting the undersigned's own
interests; (iv) the undersigned understands that the shares of Series D
Convertible Preferred Stock issuable upon exercise of this Warrant have not been
registered under the Securities Act of 1933, as amended (the "Securities Act"),
by reason of a specific exemption from the registration provisions of the
Securities Act, which exemption depends upon, among other things, the bona fide
nature of the investment intent as expressed herein, and, because such
securities have not been registered under the Securities Act, they must be held
indefinitely unless subsequently registered under the Securities Act or an
exemption from such registration is available; (v) the undersigned is aware that
the aforesaid shares of Series D Convertible Preferred Stock may not be sold
pursuant to Rule 144 adopted under the Securities Act unless certain conditions
are met and until the undersigned has held the shares for the number of years
prescribed by Rule 144, that among the conditions for use of the Rule is the
availability of current information to the public about the Company and the
Company has not made such information available and has no present plans to do
so; and (vi) the undersigned agrees not to make any disposition of all or any
part of the aforesaid shares of Series D Convertible Preferred Stock unless and
until there is then in effect a registration statement under the Securities Act
covering such proposed disposition and such disposition is made in accordance
with said registration statement, or the undersigned has provided the Company
with an opinion of counsel satisfactory to the Company, stating that such
registration is not required.

_______________________           _____________________________
(Date)                            (Signature)

                                  _____________________________
                                  (Print name)
<PAGE>

                                ASSIGNMENT FORM

                  (To assign the foregoing Warrant, execute
                  this form and supply required information.
                  Do not use this form to purchase shares.)

     For Value Received, the foregoing Warrant and all rights evidenced thereby
are hereby assigned to

Name:___________________________________________________________________________
                                (Please Print)

Address:________________________________________________________________________
                                (Please Print)

Dated: _________________

Holder's
Signature:___________________________________

Holder's
Address:_____________________________________


NOTE:  The signature to this Assignment Form must correspond with the name as it
appears on the face of the Warrant, without alteration or enlargement or any
change whatever.  Officers of corporations and those acting in a fiduciary or
other representative capacity should file proper evidence of authority to assign
the foregoing Warrant.