McGaughy R Kent Jr

SEC source: 0001402856-26-000003 · wk-form4_1781289604.xml · derivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,500

Underlying: Common Stock · 6,500 shares

Expires 2036-06-10

F1 · derivative.exercise_date: The option will vest in 12 substantially equal monthly installments commencing on July 11, 2026, subject to the Reporting Person's Continuous Service (as defined in the company's 2021 Equity Incentive Plan, the "Plan") through the vesting dates. Any portion of the option not vested on the date of the next annual stockholder meeting will vest in full, subject to the Reporting Person's Continuous Service through such date. The option will also vest in full in the event of the Reporting Person's death, Disability (as defined in the Plan) or upon a Change in Control (as defined in the Plan).

SEC source: 0001789769-25-000064 · wk-form4_1748560149.xml · derivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,500

Underlying: Common Stock · 6,500 shares

Expires 2035-05-27

F1 · derivative.exercise_date: The option will vest in 12 substantially equal monthly installments commencing on June 28, 2025, subject to the Reporting Person's Continuous Service (as defined in the company's 2021 Equity Incentive Plan, the "Plan") through the vesting dates. Any portion of the option not vested on the date of the next annual stockholder meeting will vest in full, subject to the Reporting Person's Continuous Service through such date. The option will also vest in full in the event of the Reporting Person's death, Disability (as defined in the Plan) or upon a Change in Control (as defined in the Plan).

SEC source: 0001789769-24-000065 · wk-form4_1718312526.xml · derivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2034-06-12

F1 · derivative.exercise_date: The option will vest in 12 substantially equal monthly installments commencing on July 13, 2024, subject to the Reporting Person's Continuous Service (as defined in the company's 2021 Equity Incentive Plan, the "Plan") through the vesting dates. Any portion of the option not vested on the date of the next annual stockholder meeting will vest in full, subject to the Reporting Person's Continuous Service through such date. The option will also vest in full in the event of the Reporting Person's death, Disability (as defined in the Plan) or upon a Change in Control (as defined in the Plan).

SEC source: 0000905148-24-001300 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · 10% owner

CPMG Inc · CIK 0001372218 · 10% owner

White Tailed Ptarmigan, LP · CIK 0001882743 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By White Tailed Ptarmigan, LP

Disclosed balance after: 2,823,681

F2 · kind: On May 3, 2024, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 421,061 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F2 · balance_after: On May 3, 2024, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 421,061 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F1 · ownership.nature: CPMG, Inc. is the general partner and investment manager of each of White Tailed Ptarmigan, LP, Kestrel Fund, L.P. and Mallard Fund, L.P. (collectively, the "CPMG Funds"). In such capacities, CPMG, Inc. may be deemed to have voting and investment control over the shares beneficially owned by the CPMG Funds. Antal Desai, a member of the Issuer's board of directors, and Kent McGaughy, Jr., each of whom is a shareholder and managing partner of CPMG, Inc., may be deemed to share voting and investment power with respect to the shares beneficially owned by the CPMG Funds. Each of Mr. Desai and Mr. McGaughy, Jr. disclaims beneficial ownership of the shares beneficially owned by the CPMG Funds except to the extent of any pecuniary interest therein. Antal Desai reports his beneficial ownership of these shares on a separate Form 4.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 25

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 892 shares

Expires 2029-06-12

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 24

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 9,000 shares

Expires 2029-06-12

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 23

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 1,844 shares

Expires 2028-06-13

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 22

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 8,000 shares

Expires 2028-06-13

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 21

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 3,185 shares

Expires 2027-06-14

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 20

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 6,000 shares

Expires 2027-06-14

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 19

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 2,773 shares

Expires 2026-12-07

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 18

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 6,000 shares

Expires 2026-12-07

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 17

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 4,275 shares

Expires 2033-06-07

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 16

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 1,628 shares

Expires 2033-06-07

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 15

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 4,787 shares

Expires 2032-06-08

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 14

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 11,240 shares

Expires 2032-06-08

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 13

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 399 shares

Expires 2032-01-03

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 12

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 690 shares

Expires 2031-06-10

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 11

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 5,000 shares

Expires 2031-06-10

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 10

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 699 shares

Expires 2030-06-10

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 9

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 6,300 shares

Expires 2030-06-10

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F1 · derivative.exercise_date: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · derivative.exercise_date: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 8

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 278,309 shares

Expires not disclosed

F7 · derivative.exercise_price: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F7 · derivative.exercise_date: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F7 · derivative.expiration_date: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 7

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Traweek Children's Trust

Disclosed balance after: 0

Underlying: Class A common stock · 3,109 shares

Expires not disclosed

F7 · derivative.exercise_price: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F7 · derivative.exercise_date: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F7 · derivative.expiration_date: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F5 · ownership.nature: The Reporting Person is trustee of Traweek Children's Trust.

F6 · ownership.nature: The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 6

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lagos Trust

Disclosed balance after: 0

Underlying: Class A common stock · 51,095 shares

Expires not disclosed

F7 · derivative.exercise_price: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F7 · derivative.exercise_date: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F7 · derivative.expiration_date: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F4 · ownership.nature: The Reporting Person is trustee of Lagos Trust.

F6 · ownership.nature: The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0000905148-23-001010 · form4.xml · derivative · entry 5

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A common stock · 1,692,857 shares

Expires not disclosed

F7 · derivative.exercise_price: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F7 · derivative.exercise_date: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F7 · derivative.expiration_date: The Class B common stock was convertible into Class A common stock on a one-for-one basis at the holder's election at any time. The conversion right of the Class B common stock had no expiration date.

F3 · ownership.nature: These shares of Class A common stock were held in various funds for which CPMG, Inc. serves as investment manager. Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc.

F6 · ownership.nature: The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0000905148-23-001010 · form4.xml · nonDerivative · entry 4

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Traweek Children's Trust

Disclosed balance after: 0

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F5 · ownership.nature: The Reporting Person is trustee of Traweek Children's Trust.

F6 · ownership.nature: The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0000905148-23-001010 · form4.xml · nonDerivative · entry 3

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lagos Trust

Disclosed balance after: 0

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F4 · ownership.nature: The Reporting Person is trustee of Lagos Trust.

F6 · ownership.nature: The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0000905148-23-001010 · form4.xml · nonDerivative · entry 2

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

F3 · ownership.nature: These shares of Class A common stock were held in various funds for which CPMG, Inc. serves as investment manager. Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc.

F6 · ownership.nature: The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0000905148-23-001010 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Pursuant to the Agreement and Plan of Merger, dated July 28, 2023, by and among the Issuer, Biogen Inc. ("Biogen") and River Acquisition, Inc., the Issuer became a wholly-owned subsidiary of Biogen upon consummation of the merger (the "Effective Time"). At the Effective Time, (a) each of the Issuer's outstanding shares of Class A common stock and Class B common stock (collectively, "Common Stock") was canceled and extinguished and automatically converted into the right to receive $172.50 in cash (the "Merger Consideration"), without interest, less any withholding taxes,... (Continued in Footnote 2)

F2 · price: (Continued from Footnote 1) ...and (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was automatically canceled and terminated and converted into the right to receive an amount in cash, without interest, equal to the product of (i) the number of shares of the Issuer's Common Stock underlying such option immediately prior to the Effective Time multiplied by (ii) the amount, if any, by which the Merger Consideration exceeded the exercise price per share of such option, subject to any applicable withholding taxes.

SEC source: 0001789769-24-000010 · wk-form4_1704934245.xml · derivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,500

Underlying: Common Stock · 1,500 shares

Expires 2033-06-13

F1 · derivative.exercise_date: The option will vest in 12 equal monthly installments commencing on July 14, 2023, subject to the Report Person's continued service as a director through the vesting date.

SEC source: 0001140361-23-029139 · form4.xml · derivative · entry 2

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,275

Underlying: Class A common stock · 4,275 shares

Expires 2033-06-07

F1 · derivative.exercise_date: The options vest in 4 equal installments on September 7, 2023, December 7, 2023, March 7, 2024, and June 5, 2024, subject to continued service through each vesting date.

SEC source: 0001140361-23-029139 · form4.xml · derivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,628

Underlying: Class A common stock · 1,628 shares

Expires 2033-06-07

F2 · price: This option was issued to the reporting person pursuant to the Reata Non-Employee Director Compensation Policy in lieu of future director fees of $119,954.

F1 · derivative.exercise_date: The options vest in 4 equal installments on September 7, 2023, December 7, 2023, March 7, 2024, and June 5, 2024, subject to continued service through each vesting date.

SEC source: 0001140361-23-016441 · form4.xml · derivative · entry 7

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 38,667 shares

Expires 2032-06-14

F4 · kind: Pursuant to the Merger Agreement, at the Effective Time, each outstanding and unexercised option to purchase shares of Issuer Common Stock granted under the Issuer's 2006 Stock Option Plan, 2016 Equity Incentive Plan or 2017 Equity Incentive Plan or pursuant to the "inducement" grant exception under Rule 5635(c)(4) of the Nasdaq Listing Rules (collectively, the "Issuer Stock Plans", and each such option, an "Issuer Option"), whether vested or unvested, was canceled and converted into the right to receive an amount in cash, without interest, equal to the product of (1) the amount by which the Merger Consideration exceeds the exercise price per share applicable to such Issuer Option and (2) the aggregate number of shares of Issuer Common Stock issuable upon exercise of such Issuer Option, less applicable taxes and authorized deductions.

F4 · price: Pursuant to the Merger Agreement, at the Effective Time, each outstanding and unexercised option to purchase shares of Issuer Common Stock granted under the Issuer's 2006 Stock Option Plan, 2016 Equity Incentive Plan or 2017 Equity Incentive Plan or pursuant to the "inducement" grant exception under Rule 5635(c)(4) of the Nasdaq Listing Rules (collectively, the "Issuer Stock Plans", and each such option, an "Issuer Option"), whether vested or unvested, was canceled and converted into the right to receive an amount in cash, without interest, equal to the product of (1) the amount by which the Merger Consideration exceeds the exercise price per share applicable to such Issuer Option and (2) the aggregate number of shares of Issuer Common Stock issuable upon exercise of such Issuer Option, less applicable taxes and authorized deductions.

F4 · derivative.exercise_date: Pursuant to the Merger Agreement, at the Effective Time, each outstanding and unexercised option to purchase shares of Issuer Common Stock granted under the Issuer's 2006 Stock Option Plan, 2016 Equity Incentive Plan or 2017 Equity Incentive Plan or pursuant to the "inducement" grant exception under Rule 5635(c)(4) of the Nasdaq Listing Rules (collectively, the "Issuer Stock Plans", and each such option, an "Issuer Option"), whether vested or unvested, was canceled and converted into the right to receive an amount in cash, without interest, equal to the product of (1) the amount by which the Merger Consideration exceeds the exercise price per share applicable to such Issuer Option and (2) the aggregate number of shares of Issuer Common Stock issuable upon exercise of such Issuer Option, less applicable taxes and authorized deductions.

SEC source: 0001140361-23-016441 · form4.xml · nonDerivative · entry 6

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Mallard Fund, LP

Disclosed balance after: 0

F3 · kind: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F3 · price: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-23-016441 · form4.xml · nonDerivative · entry 5

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Kestrel Fund, LP

Disclosed balance after: 0

F3 · kind: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F3 · price: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-23-016441 · form4.xml · nonDerivative · entry 4

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Crested Crane, LP

Disclosed balance after: 0

F3 · kind: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F3 · price: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-23-016441 · form4.xml · nonDerivative · entry 3

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Roadrunner Fund, LP

Disclosed balance after: 0

F3 · kind: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F3 · price: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-23-016441 · form4.xml · nonDerivative · entry 2

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Killdeer Fund, LP

Disclosed balance after: 0

F3 · kind: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F3 · price: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-23-016441 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Curlew Fund, LP

Disclosed balance after: 0

F3 · kind: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F3 · price: Reflects the disposition of the Reporting Person's indirectly owned shares of the Issuer's common stock, par value $0.001 per share ("Issuer Common Stock"), upon the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 29, 2022, among the Issuer, Boston Scientific Corporation ("Parent") and Textile Merger Sub, Inc., an indirect wholly owned subsidiary of Parent ("Merger Sub"), including the consummation of the merger between the Issuer and Merger Sub on April 4, 2023 (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each outstanding share of Issuer Common Stock was canceled and converted automatically into the right to receive $10.00 in cash, without interest (the "Merger Consideration"), less applicable taxes and authorized deductions.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-23-010508 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · ownership.nature: These shares of Class A common stock are held in escrow for a charitable donee by American Stock Transfer & Trust Company, LLC.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001140361-22-047719 · form4.xml · derivative · entry 9

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Roadrunner Fund, LP

Disclosed balance after: 0

Underlying: Common Stock · 1,465,770 shares

Expires 2026-08-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: On December 28, 2022 (the "Forced Conversion Date"), the Issuer notified the holders of its outstanding 6.0% Convertible Debentures due 2026 (the "Debentures") that it elected to cause the eligible portion of the aggregate principal amount of the Debentures outstanding to be converted into shares of the Issuer's common stock at the fixed conversion price of $3.25 per share and to issue shares of the Issuer's common stock to satisfy accrued but unpaid interest on the principal amount to be converted through the Forced Conversion Date.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-22-047719 · form4.xml · derivative · entry 8

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Killdeer Fund, LP

Disclosed balance after: 0

Underlying: Common Stock · 586,308 shares

Expires 2026-08-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: On December 28, 2022 (the "Forced Conversion Date"), the Issuer notified the holders of its outstanding 6.0% Convertible Debentures due 2026 (the "Debentures") that it elected to cause the eligible portion of the aggregate principal amount of the Debentures outstanding to be converted into shares of the Issuer's common stock at the fixed conversion price of $3.25 per share and to issue shares of the Issuer's common stock to satisfy accrued but unpaid interest on the principal amount to be converted through the Forced Conversion Date.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-22-047719 · form4.xml · derivative · entry 7

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Curlew Fund, LP

Disclosed balance after: 0

Underlying: Common Stock · 146,577 shares

Expires 2026-08-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: On December 28, 2022 (the "Forced Conversion Date"), the Issuer notified the holders of its outstanding 6.0% Convertible Debentures due 2026 (the "Debentures") that it elected to cause the eligible portion of the aggregate principal amount of the Debentures outstanding to be converted into shares of the Issuer's common stock at the fixed conversion price of $3.25 per share and to issue shares of the Issuer's common stock to satisfy accrued but unpaid interest on the principal amount to be converted through the Forced Conversion Date.

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-22-047719 · form4.xml · nonDerivative · entry 3

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Roadrunner Fund, LP

Disclosed balance after: 3,687,781

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: On December 28, 2022 (the "Forced Conversion Date"), the Issuer notified the holders of its outstanding 6.0% Convertible Debentures due 2026 (the "Debentures") that it elected to cause the eligible portion of the aggregate principal amount of the Debentures outstanding to be converted into shares of the Issuer's common stock at the fixed conversion price of $3.25 per share and to issue shares of the Issuer's common stock to satisfy accrued but unpaid interest on the principal amount to be converted through the Forced Conversion Date.

F6 · balance_after: This amount includes an aggregate 70,802 shares issued by the Issuer to the Roadrunner Fund, LP since the last Form 4 filed by the Reporting Person on October 19, 2021, including 56,598 shares paid in the semi-annual interest payments in January 2022 and in July 2022, and 14,204 shares paid on accrued but unpaid interest through the Forced Conversion Date, on the Debentures held by the Roadrunner Fund, LP, which transactions were exempt from Section 16 of the Exchange Act pursuant to Rule 16a-9(a).

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-22-047719 · form4.xml · nonDerivative · entry 2

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Killdeer Fund, LP

Disclosed balance after: 1,310,701

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: On December 28, 2022 (the "Forced Conversion Date"), the Issuer notified the holders of its outstanding 6.0% Convertible Debentures due 2026 (the "Debentures") that it elected to cause the eligible portion of the aggregate principal amount of the Debentures outstanding to be converted into shares of the Issuer's common stock at the fixed conversion price of $3.25 per share and to issue shares of the Issuer's common stock to satisfy accrued but unpaid interest on the principal amount to be converted through the Forced Conversion Date.

F5 · balance_after: This amount includes an aggregate 28,322 shares issued by the Issuer to the Killdeer Fund, LP since the last Form 4 filed by the Reporting Person on October 19, 2021, including 22,640 shares paid in the semi-annual interest payments in January 2022 and in July 2022, and 5,682 shares paid on accrued but unpaid interest through the Forced Conversion Date, on the Debentures held by the Killdeer Fund, LP, which transactions were exempt from Section 16 of the Exchange Act pursuant to Rule 16a-9(a).

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-22-047719 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Curlew Fund, LP

Disclosed balance after: 675,181

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: On December 28, 2022 (the "Forced Conversion Date"), the Issuer notified the holders of its outstanding 6.0% Convertible Debentures due 2026 (the "Debentures") that it elected to cause the eligible portion of the aggregate principal amount of the Debentures outstanding to be converted into shares of the Issuer's common stock at the fixed conversion price of $3.25 per share and to issue shares of the Issuer's common stock to satisfy accrued but unpaid interest on the principal amount to be converted through the Forced Conversion Date.

F4 · balance_after: This amount includes an aggregate 7,082 shares issued by the Issuer to the Curlew Fund, LP since the last Form 4 filed by the Reporting Person on October 19, 2021, including 5,661 shares paid in the semi-annual interest payments in January 2022 and in July 2022, and 1,421 shares paid on accrued but unpaid interest through the Forced Conversion Date, on the Debentures held by the Curlew Fund, LP, which transactions were exempt from Section 16 of the Exchange Act pursuant to Rule 16a-9(a).

F1 · ownership.direct: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.direct: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F1 · ownership.nature: CPMG, Inc. is the investment manager of each of: Crested Crane, LP; Curlew Fund, LP; Kestrel Fund, LP; Mallard Fund, LP; Roadrunner Fund, LP; and Killdeer Fund, LP (the "Funds"). Each of the Reporting Person and Antal Desai is a shareholder and managing partner of CPMG, Inc. In such capacities, each of CPMG, Inc., the Reporting Person and Antal Desai may be deemed to share voting and investment power with respect to the shares held directly by the Funds. Each of CPMG, Inc. and Antal Desai reports its and his beneficial ownership of these shares on a separate Form 4.

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0001140361-22-044739 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · 10% owner

CPMG Inc · CIK 0001372218 · 10% owner

White Tailed Ptarmigan, LP · CIK 0001882743 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By White Tailed Ptarmigan, LP

Disclosed balance after: 5,029,869

F2 · kind: On December 5, 2022, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 236,734 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F2 · balance_after: On December 5, 2022, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 236,734 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F1 · ownership.nature: CPMG, Inc. is the general partner and investment manager of each of White Tailed Ptarmigan, LP, Kestrel Fund, L.P., and Mallard Fund, L.P. (collectively, the "CPMG Funds"). In such capacities, CPMG, Inc. may be deemed to have voting and investment control over the shares beneficially owned by the CPMG Funds. Antal Desai, a member of the Issuer's board of directors, and Kent McGaughy, Jr., each of whom is a shareholder and managing partner of CPMG, Inc., may be deemed to share voting and investment power with respect to the shares beneficially owned by the CPMG Funds. Each of Mr. Desai and Mr. McGaughy, Jr. disclaims beneficial ownership of the shares beneficially owned by the CPMG Funds except to the extent of any pecuniary interest therein. Antal Desai reports his beneficial ownership of these shares on a separate Form 4.

SEC source: 0001140361-22-041922 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · 10% owner

CPMG Inc · CIK 0001372218 · 10% owner

White Tailed Ptarmigan, LP · CIK 0001882743 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By White Tailed Ptarmigan, LP

Disclosed balance after: 6,993,137

F2 · kind: On November 14, 2022, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 233,056 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F2 · balance_after: On November 14, 2022, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 233,056 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F1 · ownership.nature: CPMG, Inc. is the general partner and investment manager of each of White Tailed Ptarmigan, LP, Kestrel Fund, L.P., and Mallard Fund, L.P. (collectively, the "CPMG Funds"). In such capacities, CPMG, Inc. may be deemed to have voting and investment control over the shares beneficially owned by the CPMG Funds. Antal Desai, a member of the Issuer's board of directors, and Kent McGaughy, Jr., each of whom is a shareholder and managing partner of CPMG, Inc., may be deemed to share voting and investment power with respect to the shares beneficially owned by the CPMG Funds. Each of Mr. Desai and Mr. McGaughy, Jr. disclaims beneficial ownership of the shares beneficially owned by the CPMG Funds except to the extent of any pecuniary interest therein. Antal Desai reports his beneficial ownership of these shares on a separate Form 4.

SEC source: 0001140361-22-033193 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · 10% owner

CPMG Inc · CIK 0001372218 · 10% owner

White Tailed Ptarmigan, LP · CIK 0001882743 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By White Tailed Ptarmigan, LP

Disclosed balance after: 8,955,675

F2 · kind: On September 9, 2022, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 133,176 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F2 · balance_after: On September 9, 2022, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 133,176 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F1 · ownership.nature: CPMG, Inc. is the general partner of White Tailed Ptarmigan, LP and the investment manager of each of Kestrel Fund, L.P. and Mallard Fund, L.P. (together with White Tailed Ptarmigan, LP, the "CPMG Funds"). In such capacities, CPMG, Inc. may be deemed to have voting and investment control over the shares beneficially owned by the CPMG Funds. Antal Desai, a member of the Issuer's board of directors, and Kent McGaughy, Jr., each of whom is a shareholder and managing director of CPMG, Inc., may be deemed to share voting and investment power with respect to the shares beneficially owned by the CPMG Funds. Each of Mr. Desai and Mr. McGaughy, Jr. disclaims beneficial ownership of the shares beneficially owned by the CPMG Funds except to the extent of any pecuniary interest therein. Antal Desai reports his beneficial ownership of these shares on a separate Form 4.

SEC source: 0001140361-22-032770 · form4.xml · nonDerivative · entry 1

McGaughy R Kent Jr · CIK 0001402856 · 10% owner

CPMG Inc · CIK 0001372218 · 10% owner

White Tailed Ptarmigan, LP · CIK 0001882743 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By White Tailed Ptarmigan, LP

Disclosed balance after: 10,075,491

F2 · kind: On September 6, 2022, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 99,881 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F2 · balance_after: On September 6, 2022, White Tailed Ptarmigan, LP distributed shares on a pro rata basis, for no consideration, including 99,881 shares that were distributed in transactions exempt from Section 16 under Rule 16a-13.

F1 · ownership.nature: CPMG, Inc. is the general partner of White Tailed Ptarmigan, LP and the investment manager of each of Kestrel Fund, L.P. and Mallard Fund, L.P. (together with White Tailed Ptarmigan, LP, the "CPMG Funds"). In such capacities, CPMG, Inc. may be deemed to have voting and investment control over the shares beneficially owned by the CPMG Funds. Antal Desai, a member of the Issuer's board of directors, and Kent McGaughy, Jr., each of whom is a shareholder and managing director of CPMG, Inc., may be deemed to share voting and investment power with respect to the shares beneficially owned by the CPMG Funds. Each of Mr. Desai and Mr. McGaughy, Jr. disclaims beneficial ownership of the shares beneficially owned by the CPMG Funds except to the extent of any pecuniary interest therein. Antal Desai reports his beneficial ownership of these shares on a separate Form 4.