CSGS

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, each unvested share of restricted stock ("RSA") and each unvested share of performance-based restricted stock ("PSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 9,781 RSAs and 10,101 PSAs. Any payment with respect to unvested RSAs and PSAs, as applicable, will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, each unvested share of restricted stock ("RSA") and each unvested share of performance-based restricted stock ("PSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 53,806 RSAs and 93,184 PSAs. Any payment with respect to unvested RSAs and PSAs, as applicable, will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, each unvested share of restricted stock ("RSA") and each unvested share of performance-based restricted stock ("PSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 19,982 RSAs and 28,579 PSAs. Any payment with respect to unvested RSAs and PSAs, as applicable, will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, each unvested share of restricted stock ("RSA") and each unvested share of performance-based restricted stock ("PSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 15,952 RSAs and 16,839 PSAs. Any payment with respect to unvested RSAs and PSAs, as applicable, will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 10,946 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, each unvested share of restricted stock ("RSA") and each unvested share of performance-based restricted stock ("PSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 5,185 RSAs and 2,869 PSAs. Any payment with respect to unvested RSAs and PSAs, as applicable, will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, each unvested share of restricted stock ("RSA") and each unvested share of performance-based restricted stock ("PSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 20,225 RSAs and 17,484 PSAs. Any payment with respect to unvested RSAs and PSAs, as applicable, will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

On May 14, 2026, pursuant to that certain Agreement and Plan of Merger, dated as of October 29, 2025 (the "Merger Agreement"), by and among CSG Systems International, Inc. (the "Issuer"), NEC Corporation ("Parent") and Canvas Transaction Company, Inc., a direct or indirect wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.01 per share, and each unvested share of restricted stock ("RSA") held by the Reporting Person immediately prior to the closing of the Merger was converted into the right to receive $80.70 in cash, without interest, less any applicable withholding taxes.

Includes 3,085 RSAs. Any payment with respect to unvested RSAs will be subject to vesting conditions on substantially the same terms and conditions as applied to such awards immediately prior to the effective time of the Merger, except for terms rendered inoperative by reason of the Merger.

Represents shares withheld by the issuer to cover tax withholding obligations upon vesting of a restricted stock award.

Represents shares withheld by the issuer to cover tax withholding obligations upon vesting of a restricted stock award.

Represents shares of time-based restricted stock which vest on March 10, 2027.

Represents shares of time-based restricted stock which vest on March 10, 2027.

Represents shares of time-based restricted stock which vest on March 10, 2027.

Represents shares of time-based restricted stock which vest on March 10, 2027.

Represents shares of time-based restricted stock which vest on March 10, 2027.

Represents shares of time-based restricted stock which vest on March 10, 2027.

Represents shares of time-based restricted stock which vest on March 10, 2027.

Represents shares withheld by the Issuer to cover tax withholding obligations upon vesting of a restricted stock award and/or a performance-based restricted stock award.

Represents additional shares of performance-based restricted stock awarded due to level of achievement attained for pre-determined performance objectives.

Represents additional shares of performance-based restricted stock awarded due to level of achievement attained for pre-determined performance objectives.

Represents shares withheld by the Issuer to cover tax withholding obligations upon vesting of a restricted stock award and/or a performance-based restricted stock award.

In connection with the transactions contemplated by the Agreement and Plan of Merger, dated as of October 29, 2025, by and among the Issuer, NEC Corporation and Canvas Transaction Company, Inc. (the "Merger Agreement"), the Board of Directors (or authorized committee thereof) of the Issuer accelerated the vesting of certain restricted stock awards and performance-based restricted stock awards (i) pursuant to the terms of the Merger Agreement or (ii) in connection with tax-planning actions to mitigate adverse tax consequences of Sections 280G and 4999 of the Internal Revenue Code of 1986, as amended.

Represents shares withheld by the Issuer to cover tax withholding obligations upon vesting of a restricted stock award and/or a performance-based restricted stock award.

In connection with the transactions contemplated by the Agreement and Plan of Merger, dated as of October 29, 2025, by and among the Issuer, NEC Corporation and Canvas Transaction Company, Inc. (the "Merger Agreement"), the Board of Directors (or authorized committee thereof) of the Issuer accelerated the vesting of certain restricted stock awards and performance-based restricted stock awards (i) pursuant to the terms of the Merger Agreement or (ii) in connection with tax-planning actions to mitigate adverse tax consequences of Sections 280G and 4999 of the Internal Revenue Code of 1986, as amended.

Represents additional shares of performance-based restricted stock awarded due to level of achievement attained for pre-determined performance objectives.

Represents shares withheld by the Issuer to cover tax withholding obligations upon vesting of a restricted stock award and/or a performance-based restricted stock award.

In connection with the transactions contemplated by the Agreement and Plan of Merger, dated as of October 29, 2025, by and among the Issuer, NEC Corporation and Canvas Transaction Company, Inc. (the "Merger Agreement"), the Board of Directors (or authorized committee thereof) of the Issuer accelerated the vesting of certain restricted stock awards and performance-based restricted stock awards (i) pursuant to the terms of the Merger Agreement or (ii) in connection with tax-planning actions to mitigate adverse tax consequences of Sections 280G and 4999 of the Internal Revenue Code of 1986, as amended.

Represents additional shares of performance-based restricted stock awarded due to level of achievement attained for pre-determined performance objectives.

Represents shares withheld by the Issuer to cover tax withholding obligations upon vesting of a restricted stock award and/or a performance-based restricted stock award.

In connection with the transactions contemplated by the Agreement and Plan of Merger, dated as of October 29, 2025, by and among the Issuer, NEC Corporation and Canvas Transaction Company, Inc. (the "Merger Agreement"), the Board of Directors (or authorized committee thereof) of the Issuer accelerated the vesting of certain restricted stock awards and performance-based restricted stock awards (i) pursuant to the terms of the Merger Agreement or (ii) in connection with tax-planning actions to mitigate adverse tax consequences of Sections 280G and 4999 of the Internal Revenue Code of 1986, as amended.

Represents additional shares of performance-based restricted stock awarded due to level of achievement attained for pre-determined performance objectives.

Represents additional shares of performance-based restricted stock awarded due to level of achievement attained for pre-determined performance objectives.

Represents shares withheld by the Issuer to cover tax withholding obligations upon vesting of a restricted stock award and/or a performance-based restricted stock award.

In connection with the transactions contemplated by the Agreement and Plan of Merger, dated as of October 29, 2025, by and among the Issuer, NEC Corporation and Canvas Transaction Company, Inc. (the "Merger Agreement"), the Board of Directors (or authorized committee thereof) of the Issuer accelerated the vesting of certain restricted stock awards and performance-based restricted stock awards (i) pursuant to the terms of the Merger Agreement or (ii) in connection with tax-planning actions to mitigate adverse tax consequences of Sections 280G and 4999 of the Internal Revenue Code of 1986, as amended.

Represents shares withheld by the Issuer to cover tax withholding obligations upon vesting of a restricted stock award and/or a performance-based restricted stock award.

In connection with the transactions contemplated by the Agreement and Plan of Merger, dated as of October 29, 2025, by and among the Issuer, NEC Corporation and Canvas Transaction Company, Inc. (the "Merger Agreement"), the Board of Directors (or authorized committee thereof) of the Issuer accelerated the vesting of certain restricted stock awards and performance-based restricted stock awards (i) pursuant to the terms of the Merger Agreement or (ii) in connection with tax-planning actions to mitigate adverse tax consequences of Sections 280G and 4999 of the Internal Revenue Code of 1986, as amended.

Represents shares withheld by the issuer to cover tax withholding obligations upon vesting of a restricted stock award.

Represents shares withheld by the issuer to cover tax withholding obligations upon vesting of a restricted stock award.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.

Represents shares withheld by the issuer to cover tax withholding obligations upon vesting of a restricted stock award.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.

Shares of restricted stock granted which will vest one day immediately preceding the first annual general meeting of the Company's stockholders occurring after the Award Date.