<PAGE>
<TABLE>
<CAPTION>
-----------------------------------------
OMB APPROVAL
-----------------------------------------
<S> <C>
OMB Number: 3235-0145
Expires: December 31, 1997
Estimated average burden
hours per response..................14.90
-----------------------------------------
</TABLE>
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. ______________)*
ProBusiness Services, Inc.
---------------------------------------------
(NAME OF ISSUER)
Common Stock
---------------------------------------------
(TITLE OF CLASS OF SECURITIES)
742674 10 4
---------------------------------------------
(CUSIP NUMBER)
*The remainder of this cover page shall be filled out for a reporting
person's initial filing of this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter the disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).
SEC 1745 (2-95)
Page 1 of 8 Pages
<PAGE>
CUSIP NO. 742674 10 4 13G PAGE 2 OF 8 PAGES
- -------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
THOMAS H. SINTON
###-##-####
- -------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / /
(b) / /
- -------------------------------------------------------------------------------
3 SEC USE ONLY
- -------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
USA
- -------------------------------------------------------------------------------
5 SOLE VOTING POWER
857,614
NUMBER OF SHARES ----------------------------------------------------------
BENEFICIALLY 6 SHARED VOTING POWER
OWNED BY EACH
REPORTING PERSON 1,929,088
WITH ----------------------------------------------------------
7 SOLE DISPOSITIVE POWER
857,614
----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
1,929,088
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
2,786,702
- -------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- -------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
25.0%
- -------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- -------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT
<PAGE>
CUSIP NO. 742674 10 4 13G PAGE 3 OF 8 PAGES
- -------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
JANE N. SINTON
###-##-####
- -------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / /
(b) / /
- -------------------------------------------------------------------------------
3 SEC USE ONLY
- -------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
USA
- -------------------------------------------------------------------------------
5 SOLE VOTING POWER
33,668
NUMBER OF SHARES ----------------------------------------------------------
BENEFICIALLY 6 SHARED VOTING POWER
OWNED BY EACH
REPORTING PERSON 1,929,088
WITH ----------------------------------------------------------
7 SOLE DISPOSITIVE POWER
33,668
----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
1,929,088
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,962,756
- -------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- -------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
17.6%
- -------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- -------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT
<PAGE>
CUSIP No. 742674 10 4 Page 4 of 8 Pages
ITEM 1.
(a) Name of Issuer:
PROBUSINESS SERVICES, INC.
(b) Address of Issuer's Principal Executive Offices:
4125 HOPYARD ROAD
PLEASANTON, CA 94588
ITEM 2.
(a) Name of Person Filing:
THOMAS H. SINTON
JANE N. SINTON
(b) Address of Principal Business Office or, if none, Residence:
4125 HOPYARD ROAD
PLEASANTON, CA 94588
(c) Citizenship:
USA
(d) Title of Class of Securities:
COMMON STOCK
(e) CUSIP Number:
742674 10 4
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), OR 13d-2(b),
CHECK WHETHER THE PERSON IS A:
(a) / / Broker or Dealer registered under Section 15 of the Act
(b) / / Bank as defined in section 3(a)(6) of the Act
(c) / / Insurance Company as defined in section 3(a)(19) of the Act
(d) / / Investment Company registered under section 8 of the Investment
Company Act
(e) / / Investment Adviser registered under section 203 of the Investment
Advisers Act of 1940
(f) / / Employee Benefit Plan, Pension Fund which is subject to the
provisions of the Employee Retirement Income Security Act of 1974
or Endowment Fund, see Section 240.13d-1(b)(1)(ii)(F)
<PAGE>
CUSIP No. 742674 10 4 Page 5 of 8 Pages
(g) / / Parent Holding Company, in accordance with Section 240.13d-1(b)
(ii)(G) (Note: See Item 7)
(h) / / Group, in accordance with Section 240.13d-1(b)(1)(ii)(H)
ITEM 4. OWNERSHIP.
(a) Amount Beneficially Owned:
THOMAS H. SINTON 2,786,702 (1)
JANE N. SINTON 1,962,756 (2)
(b) Percent of Class:
THOMAS H. SINTON 25.0%
JANE N. SINTON 17.6%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote
THOMAS H. SINTON 857,614(3)
JANE N. SINTON 33,668(3)
(ii) shared power to vote or to direct the vote
THOMAS H. SINTON 1,929,088(4)
JANE N. SINTON 1,929,088(4)
(iii) sole power to dispose or direct the disposition of
THOMAS H. SINTON 857,614(3)
JANE N. SINTON 33,668(3)
(iv) shared power to dispose or direct the disposition of
THOMAS H. SINTON 1,929,088(4)
JANE N. SINTON 1,929,088(4)
ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more
that five percent of the class of securities, check the following / /.
- --------------------------
(1) Includes 100,000 shares held by Thomas H. Sinton in his name only,
1,929,088 shares held by Thomas and Jane Sinton as community property,
including 37,982 shares which are subject to call options established
pursuant to option agreements dated 10/31/92, 628,598 shares held by the
Thomas H. Sinton and Jane Nibley Sinton 1989 Irrevocable Trust of which
Thomas H. Sinton is trustee and which is for the benefit of the Sintons'
children, 112,632 shares held by the Silas D. Sinton Trust Estate of
which Thomas H. Sinton is trustee, which is for the benefit of his
father, and in which Thomas H. Sinton holds a remainder interest, and
16,384 shares held by the Silas Jack Sinton Family Trust of which Thomas
H. Sinton is trustee and which is for the benefit of his brother.
(2) Includes 33,668 shares held by Jane N. Sinton as custodian for the
Sintons' children and 1,929,088 shares held by Thomas and Jane Sinton as
community property, including 37,982 shares which are subject to call
options established pursuant to option agreements dated 10/31/92.
(3) Excludes shares held as community property.
(4) Includes only shares held as community property.
<PAGE>
CUSIP No. 742674 10 4 Page 6 of 8 Pages
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
SEE FOOTNOTES 1 AND 2 ON PREVIOUS PAGE.
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE
SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.
NOT APPLICABLE
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
NOT APPLICABLE
ITEM 9. NOTICE OF DISSOLUTION OF GROUP.
NOT APPLICABLE
ITEM 10. NOT APPLICABLE
<PAGE>
CUSIP No. 742674 10 4 Page 7 of 8 Pages
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete
and correct.
Date: February 11, 1998 Signature: /s/ Thomas H. Sinton
-----------------------------
Name: Thomas H. Sinton
Title: Chairman, President, and CEO
Signature: /s/ Jane N. Sinton
-----------------------------
Name: Jane N. Sinton
<PAGE>
CUSIP No. 742674 10 4 Page 8 of 8 Pages
EXHIBIT A
---------
AGREEMENT FOR JOINT FILING OF SCHEDULE 13G
THE UNDERSIGNED HEREBY agree to file with the Securities and Exchange
Commission a joint Schedule 13G on behalf of each of the undersigned with
respect to their ownership of shares of Common Stock of ProBusiness Services,
Inc.
Date: February 11, 1998 Signature: /s/ Thomas H. Sinton
----------------------------------
Name: Thomas H. Sinton
Title: Chairman, President, and CEO
Signature: /s/ Jane N. Sinton
----------------------------------
Name: Jane N. Sinton