ACLARA BIOSCIENCES INC

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

2.01,5.01,8.01,9.01

Certification of termination of registration of a class of securities (Section 12(g))

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Written communication about a business combination transaction (Rule 425)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

8.01,9.01

1.01,7.01,9.01

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Written communication about a business combination transaction (Rule 425)

Additional Information for Proxy Statement/ Votes

Written communication about a business combination transaction (Rule 425)

Entry into a Material Definitive Agreement

Written communication about a business combination transaction (Rule 425)

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Additional Information for Proxy Statement/ Votes

Written communication about a business combination transaction (Rule 425)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Written communication about a business combination transaction (Rule 425)

ITEM INFORMATION: Financial statements and exhibits

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Additional Information for Proxy Statement/ Votes

Written communication about a business combination transaction (Rule 425)

5,7

Additional Information for Proxy Statement/ Votes

Written communication about a business combination transaction (Rule 425)

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

5,7

Additional Information for Proxy Statement/ Votes

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d) (amendment)

12,7

Annual report pursuant to Section 13 or 15(d)

12,7

General form for quarterly reports under Section 13 or 15(d)

12,7

General form for quarterly reports under Section 13 or 15(d)

12,7

Definitive Proxy Statement

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d) (amendment)

7,9

Annual report pursuant to Section 13 or 15(d)

No description available

5,7

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

FILED AS OF DATE: 20020814

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

No description available

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

No description available

5,7

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d) (amendment)

TANG KEVIN C;TANG CAPITAL PARTNERS LP;TANG CAPITAL MANAGEMENT LLC

TANG OSCAR

MARION ANDRE F

TANG KEVIN C

SINGH SHARAT

BARUCH THOMAS R

MENDLEIN JOHN

DUNN MICHAEL JOHN

KLOPACK THOMAS G

SINGH SHARAT

MACEVICZ STEPHEN

MERRIWEATHER ALFRED G

SINGH SHARAT