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Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
| [ ] | Rule 13d-1(b) |
| [X] | Rule 13d-1(c) |
| [ ] | Rule 13d-1(d) |
| CUSIP No. 68371P102 | ||||
| 1. | Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). CNH Partners, LLC 13-4172062; CNH CA Master Account, L.P. 42-1571441 |
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| 2. | Check the Appropriate Box if a Member of a Group (See Instructions) | |||
| (a) | [ ] | |||
| (b) | [X] | |||
| 3. | SEC Use Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | |||
| 4. | Citizenship or Place of Organization Cayman Islands | |||
| Number of Shares Beneficially Owned by Each Reporting Person With |
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| 5. | Sole Voting Power | |||
| 6. | Shared Voting Power Senior Subordinated Convertible Notes which are convertible into 1,410,321 shares of Common Stock, $0.01 par value. | |||
| 7. | Sole Dispositive Power | |||
| 8. | Shared Dispositive Power Senior Subordinated Convertible Notes which are convertible into 1,410,321 shares of Common Stock, $0.01 par value. | |||
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person Senior Subordinated Convertible Notes which are convertible into 1,410,321 shares of Common Stock, $0.01 par value. | |||
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) | |||
| 11. | Percent of Class Represented by Amount in Row (9) 6.63 % | |||
| 12. | Type of Reporting Person (See Instructions) | |||
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PN
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| Item 1. | |||
| (a) | Name of Issuer OPEN SOLUTIONS INC. |
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| (b) | Address of Issuer's Principal Executive Offices 455 Winding Brook Drive, Glastonbury, CT 06033 |
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| Item 2. | |||
| (a) | Name of Person Filing CNH CA Master Account, L.P. |
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| (b) | Address of Principal Business Office or, if none, Residence
Two Greenwich Plaza, 3rd Floor, Greenwich, CT 06830 |
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| (c) | Citizenship Cayman Islands |
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| (d) | Title of Class of Securities Common stock, $0.01 par value |
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| (e) | CUSIP Number 68371P102 |
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| Item 3. | If this statement is filed pursuant to 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: | ||
| (a) | [ ] | Broker or dealer registered under section 15 of the Act (15 U.S.C. 78c). | |
| (b) | [ ] | Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c). | |
| (c) | [ ] | Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c). | |
| (d) | [ ] | Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8). | |
| (e) | [ ] | An investment adviser in accordance with 240.13d-1(b)(1)(ii)(E); | |
| (f) | [ ] | An employee benefit plan or endowment fund in accordance with 240.13d-1(b)(1)(ii)(F); | |
| (g) | [ ] | A parent holding company or control person in accordance with 240.13d-1(b)(1)(ii)(G); | |
| (h) | [ ] | A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); | |
| (i) | [ ] | A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); | |
| (j) | [ ] | Group, in accordance with 240.13d-1(b)(1)(ii)(J). | |
| Item 4. | Ownership. | ||
| Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. | |||
| (a) | Amount beneficially owned: Senior Subordinated Convertible Notes which are convertible into 1,410,321 shares of Common Stock, $0.01 par value. | ||
| (b) | Percent of class: 6.63 % | ||
| (c) | Number of shares as to which the person has: | ||
| (i) | Sole power to vote or to direct the vote | ||
| (ii) | Shared power to vote or to direct the vote Senior Subordinated Convertible Notes which are convertible into 1,410,321 shares of Common Stock, $0.01 par value. | ||
| (iii) | Sole power to dispose or to direct the disposition of | ||
| (iv) | Shared power to dispose or to direct the disposition of Senior Subordinated Convertible Notes which are convertible into 1,410,321 shares of Common Stock, $0.01 par value. | ||
| 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 than five percent of the class of securities, check the following.[ ]. | |||
| Item 6. | Ownership of More than Five Percent on Behalf of Another Person. | ||
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person. | ||
| Item 8. | Identification and Classification of Members of the Group | ||
| Item 9. | Notice of Dissolution of Group | ||
| Item 10. | Certification | ||
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By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were not acquired and are not held for
the purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.
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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. |
| 01/30/2006 | |
| Date | |
| /s/ Bradley Asness | |
| Signature | |
| Bradley Asness, Secretary | |
| Name/Title |
| Attention: | Intentional misstatements or omissions of fact constitute Federal criminal violations (See 18 U.S.C. 1001) |
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