Seres Therapeutics
MCRB

股本结构

单位：万股
公告日期 2026-03-12 2026-03-12 2025-11-05 2025-11-05 2025-08-06 2025-08-06
证券总股本 958.63 955.64 904.65 876.47 875.46 875.45
普通股本 958.63 955.64 904.65 876.47 875.46 875.45
优先股 未披露 未披露 未披露 未披露 未披露 未披露
其他 未披露 未披露 未披露 未披露 未披露 未披露
变动日期 2026-03-06 2025-12-31 2025-10-31 2025-09-30 2025-08-01 2025-06-30
注释：中概股证券总股本=普通股股本/ 存托凭证比例

历史变动

公告日期 变动后普通股本（万股） 变动后优先股（万股） 变动原因 变动日期
2026-03-12 958.63 未披露 定期报告 2026-03-06
2026-03-12 955.64 未披露
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From December 31, 2024 to December 31, 2025 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs and PSUs, net of tax withholdings Issuance of common stock under ESPP Issuance of common stock from at the market equity offering, net of issuance costs of $498 Adjustment for fractional shares due to reverse stock split
2025-12-31
2025-11-05 904.65 未披露 定期报告 2025-10-31
2025-11-05 876.47 未披露
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From June 30, 2025 to September 30, 2025 Issuance of common stock under ESPP Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings
2025-09-30
2025-08-06 875.46 未披露 定期报告 2025-08-01
2025-08-06 875.45 未披露
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From March 31, 2025 to June 30, 2025 Issuance of common stock upon vesting of RSUs, net of tax withholdings Adjustment for fractional shares due to reverse stock split
2025-06-30
2025-05-07 873.24 未披露 定期报告 2025-05-02
2025-04-14 871.79 未披露
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reverse stock split of the Company’s common stock at a final ratio of 1-for-20
2025-04-22
2025-03-13 17435.88 未披露 定期报告 2025-03-07
2025-03-13 17410.75 未披露 定期报告 2025-02-13
2025-03-13 17300.82 未披露
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From December 31, 2023 to December 31, 2024 Issuance of common stock from Securities Purchase Agreement - related party Issuance of common stock from at the market equity offering, net of issuance costs of $867 Issuance of common stock upon vesting of RSUs and PSUs, net of tax withholdings Issuance of common stock under ESPP
2024-12-31
2024-11-13 17073.81 未披露 定期报告 2024-11-08
2024-11-13 17020.03 未披露
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From June 30, 2024 to September 30, 2024 Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP Issuance of common stock from Securities Purchase Agreement - related party Issuance of common stock from at the market equity offering, net of issuance costs of $196
2024-09-30
2024-08-26 15238.17 未披露 定期报告 2024-08-19
2024-08-13 15173.10 未披露 定期报告 2024-08-09
2024-08-13 15163.39 未披露
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From March 31, 2024 to June 30, 2024 Issuance of common stock upon vesting of RSUs, net of tax withholdings
2024-06-30
2024-05-08 15144.78 未披露 定期报告 2024-05-06
2024-05-08 15144.20 未披露
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From December 31, 2023 to March 31, 2024 Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP Issuance of common stock from at the market equity offering, net of issuance costs of $548
2024-03-31
2024-03-05 15100.95 未披露 定期报告 2024-03-01
2024-03-05 14555.76 未披露 定期报告 2024-02-12
2024-03-05 13504.15 未披露
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From December 31,2022 to December 31,2023 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs and PSUs,net of tax withholdings Issuance of common stock under ESPP Issuance of common stock from at the market equity offering, net of issuance costs of $772
2023-12-31
2023-11-02 12925.72 未披露 定期报告 2023-10-31
2023-11-02 12863.07 未披露
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From June 30, 2023 to September 30, 2023 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP
2023-09-30
2023-08-08 12820.46 未披露 定期报告 2023-08-04
2023-08-08 12803.77 未披露
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From March 31, 2023 to June 30, 2023 Issuance of common stock upon vesting of RSUs and PSUs, net of tax withholdings Issuance of common stock upon exercise of stock options Issuance of common stock from at the market equity offering, net of issuance costs of $304
2023-06-30
2023-05-09 12790.14 未披露 定期报告 2023-05-05
2023-04-25 12782.89 未披露 定期报告 2023-04-24
2023-05-09 12659.26 未披露
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From December 31, 2022 to March 31, 2023 Issuance of common stock from at the market equity offering, net of issuance costs of $225 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP
2023-03-31
2023-03-07 12607.64 未披露 定期报告 2023-03-03
2023-03-07 12522.23 未披露
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From December 31, 2021 to December 31, 2022 Issuance of common stock upon vesting of RSUs and PSUs, net of tax withholdings Issuance of common stock net of issuance costs of $3,279 Issuance of common stock upon exercise of stock options Issuance of common stock under ESPP Issuance of common stock from at the market equity offering, net of issuance costs of $310
2022-12-31
2022-11-02 12459.17 未披露 定期报告 2022-10-28
2022-11-02 12441.09 未披露
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From June 30, 2022 to September 30, 2022 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP Issuance of common stock net of issuance costs of $3,279
2022-09-30
2022-08-03 12407.16 未披露 定期报告 2022-08-01
2022-07-05 12400.81 未披露
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1.Common stock offered by 31,746,030 shares 2.The number of shares of common stock to be outstanding immediately after this offering is based on 92,262,056 shares outstanding as of May 31, 2022
2022-07-05
2022-06-30 9226.21 未披露 定期报告 2022-05-31
2022-04-29 9223.04 未披露 定期报告 2022-04-25
2022-05-04 9221.03 未披露
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from December 31, 2021 to March 31, 2022 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP
2022-03-31
2022-03-01 9201.44 未披露 定期报告 2022-02-24
2022-03-01 9188.94 未披露
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From December 31, 2020 to December 31, 2021 Issuance of common stock upon exercise of stock options Issuance of common stock under ESPP plan Issuance of common stock upon vesting of RSUs, net of tax withholdings
2021-12-31
2021-11-10 9184.71 未披露 定期报告 2021-11-03
2021-11-10 9184.20 未披露
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From June 30, 2021 to September 30, 2021 Issuance of common stock upon exercise of stock options Issuance of common stock under ESPP plan
2021-09-30
2021-08-03 9171.86 未披露 定期报告 2021-07-28
2021-08-03 9171.38 未披露
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From March 31, 2021 to June 30, 2021 Issuance of common stock upon exercise of stock options
2021-06-30
2021-05-21 9167.75 未披露 定期报告 2021-05-18
2021-05-04 9162.27 未披露 定期报告 2021-04-28
2021-04-30 9158.97 未披露 定期报告 2021-04-19
2021-05-04 9158.83 未披露
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from December 31, 2020 to March 31, 2021 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
2021-03-31
2021-03-02 9154.94 未披露 定期报告 2021-02-24
2021-03-02 9145.92 未披露
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From December 31,2019 to December 31,2020 Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs Issuance of common stock from Securities Purchase Agreement, net of offering costs - related party Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
2020-12-31
2020-11-09 9124.82 未披露 定期报告 2020-11-03
2020-11-09 9121.45 未披露
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From June 30, 2020 to September 30, 2020 Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs Issuance of common stock from Securities Purchase Agreement, net of offering costs - related party Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
2020-09-30
2020-08-17 8771.75 未披露
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1.Common stock offered by the company 10,500,000 shares. 2.Concurrent placement 959,002 shares. 3.The number of shares of common stock to be outstanding after this offering and the concurrent placement is based on 76,258,531 shares of common stock outstanding as of July 31, 2020.
2020-08-17
2020-07-28 7625.85 未披露 定期报告 2020-07-22
2020-07-28 7513.18 未披露
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From March 31, 2020 to June 30, 2020 Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options
2020-06-30
2020-05-07 7259.91 未披露 定期报告 2020-05-01
2020-04-30 7221.26 未披露 定期报告 2020-04-21
2020-05-07 7167.11 未披露
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From December 31, 2019 to March 31, 2020 Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
2020-03-31
2020-03-18 7114.74 未披露 定期报告 2020-03-16
2020-03-02 7107.11 未披露 定期报告 2020-02-25
2020-03-02 7014.33 未披露
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from December 31, 2018 to December 31, 2019 Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
2019-12-31
2019-11-27 7001.14 未披露 定期报告 2019-11-25
2019-11-05 6999.40 未披露
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from June 30, 2019 to September 30, 2019 Issuance of common stock upon exercise of stock options Issuance of common stock under ESPP plan
2019-09-30
2019-08-06 6991.34 未披露
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From March 31, 2019 to June 30, 2019 Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs
2019-06-30
2019-06-18 6776.15 未披露 定期报告 2019-06-18
2019-05-02 4109.48 未披露
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From December 31, 2018 to March 31, 2019 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs Issuance of common stock under ESPP plan
2019-03-31
2019-03-06 4104.84 未披露 定期报告 2019-02-28
2019-03-06 4093.67 未披露
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From December 31, 2017 to December 31, 2018 Issuance of common stock upon exercise of stock options
2018-12-31
2018-11-08 4085.59 未披露 定期报告 2018-11-02
2018-11-08 4084.45 未披露 定期报告 2018-09-30
2018-08-02 4079.57 未披露 定期报告 2018-07-26
2018-08-02 4075.47 未披露 定期报告 2018-06-30
2018-05-09 4065.27 未披露 定期报告 2018-03-31
2018-03-08 4064.84 未披露 定期报告 2018-03-02
2018-03-08 4057.10 未披露
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from December 31, 2016 to December 31, 2017 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs
2017-12-31
2017-11-08 4053.01 未披露 定期报告 2017-11-03
2017-11-08 4051.26 未披露 定期报告 2017-09-30
2017-08-03 4051.26 未披露 定期报告 2017-07-31
2017-08-03 4041.20 未披露 定期报告 2017-06-30
2017-05-01 4039.06 未披露 定期报告 2017-04-26
2017-05-04 4038.69 未披露 定期报告 2017-03-31
2017-03-16 4036.81 未披露 定期报告 2017-02-16
2017-03-16 4035.58 未披露
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from December 31, 2015 to September 30, 2016 Issuance of common stock upon exercise of stock options
2016-09-30
2016-08-11 4027.45 未披露 定期报告 2016-08-05
2016-08-11 3985.92 未披露 定期报告 2016-06-30
2016-05-16 3951.98 未披露 定期报告 2016-05-09
2016-04-28 3938.37 未披露 定期报告 2016-04-22
2016-05-16 3921.87 未披露 定期报告 2016-03-31
2016-03-14 3918.70 未披露 定期报告 2016-03-07
2016-03-14 3908.20 未披露
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From December 31, 2014 to December 31, 2015 Conversion of convertible preferred stock upon listing Issuance of common stock upon exercise of stock options Issuance of common stock upon exercise of common stock warrant Issuance of common stock upon completion of initial public offering, net of offering costs
2015-12-31
2015-11-12 3905.58 未披露
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from December 31, 2014 to September 30, 2015 Issuance of common stock upon exercise of stock options Issuance of common stock upon exercise of common stock warrants Issuance of common stock upon completion of initial public offering, net of offering costs Conversion of convertible preferred stock upon listing of the Company’s common stock on the NASDAQ
2015-09-30
2015-08-10 3896.36 未披露 定期报告 2015-08-07
2015-08-10 3041.66 未披露
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from December 31, 2014 to June 30, 2015 Conversion of convertible preferred stock upon listing of the Company’s common stock on the NASDAQ Issuance of common stock upon exercise of stock options Issuance of common stock upon exercise of common stock warrant
2015-06-30
2015-06-26 3783.41 未披露
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the automatic conversion of all shares of our preferred stock outstanding as of May 31, 2015 into an aggregate of 22,866,987 shares of our common stock in connection with this offering;
2015-06-26
2015-06-16 753.65 2286.70 定期报告 2015-05-31
2015-05-27 708.20 2286.70
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From December 31, 2014 to March 31, 2015 Issuance of common stock upon exercise of stock options
2015-03-31
2015-05-27 689.03 2286.70
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From December 31, 2013 to December 31, 2014 Issuance of Series B convertible preferred stock, net of issuance costs of $71 Issuance of Series C convertible preferred stock, net of issuance costs of $187 Issuance of Series D and D-1 convertible preferred stock, net of issuance costs of $168 Issuance of common stock upon exercise of stock options Issuance of common stock
2014-12-31
From December 31, 2024 to December 31, 2025 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs and PSUs, net of tax withholdings Issuance of common stock under ESPP Issuance of common stock from at the market equity offering, net of issuance costs of $498 Adjustment for fractional shares due to reverse stock split
From June 30, 2025 to September 30, 2025 Issuance of common stock under ESPP Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings
From March 31, 2025 to June 30, 2025 Issuance of common stock upon vesting of RSUs, net of tax withholdings Adjustment for fractional shares due to reverse stock split
reverse stock split of the Company’s common stock at a final ratio of 1-for-20
From December 31, 2023 to December 31, 2024 Issuance of common stock from Securities Purchase Agreement - related party Issuance of common stock from at the market equity offering, net of issuance costs of $867 Issuance of common stock upon vesting of RSUs and PSUs, net of tax withholdings Issuance of common stock under ESPP
From June 30, 2024 to September 30, 2024 Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP Issuance of common stock from Securities Purchase Agreement - related party Issuance of common stock from at the market equity offering, net of issuance costs of $196
From March 31, 2024 to June 30, 2024 Issuance of common stock upon vesting of RSUs, net of tax withholdings
From December 31, 2023 to March 31, 2024 Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP Issuance of common stock from at the market equity offering, net of issuance costs of $548
From December 31,2022 to December 31,2023 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs and PSUs,net of tax withholdings Issuance of common stock under ESPP Issuance of common stock from at the market equity offering, net of issuance costs of $772
From June 30, 2023 to September 30, 2023 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP
From March 31, 2023 to June 30, 2023 Issuance of common stock upon vesting of RSUs and PSUs, net of tax withholdings Issuance of common stock upon exercise of stock options Issuance of common stock from at the market equity offering, net of issuance costs of $304
From December 31, 2022 to March 31, 2023 Issuance of common stock from at the market equity offering, net of issuance costs of $225 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP
From December 31, 2021 to December 31, 2022 Issuance of common stock upon vesting of RSUs and PSUs, net of tax withholdings Issuance of common stock net of issuance costs of $3,279 Issuance of common stock upon exercise of stock options Issuance of common stock under ESPP Issuance of common stock from at the market equity offering, net of issuance costs of $310
From June 30, 2022 to September 30, 2022 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP Issuance of common stock net of issuance costs of $3,279
1.Common stock offered by 31,746,030 shares 2.The number of shares of common stock to be outstanding immediately after this offering is based on 92,262,056 shares outstanding as of May 31, 2022
from December 31, 2021 to March 31, 2022 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP
From December 31, 2020 to December 31, 2021 Issuance of common stock upon exercise of stock options Issuance of common stock under ESPP plan Issuance of common stock upon vesting of RSUs, net of tax withholdings
From June 30, 2021 to September 30, 2021 Issuance of common stock upon exercise of stock options Issuance of common stock under ESPP plan
From March 31, 2021 to June 30, 2021 Issuance of common stock upon exercise of stock options
from December 31, 2020 to March 31, 2021 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
From December 31,2019 to December 31,2020 Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs Issuance of common stock from Securities Purchase Agreement, net of offering costs - related party Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
From June 30, 2020 to September 30, 2020 Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs Issuance of common stock from Securities Purchase Agreement, net of offering costs - related party Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
1.Common stock offered by the company 10,500,000 shares. 2.Concurrent placement 959,002 shares. 3.The number of shares of common stock to be outstanding after this offering and the concurrent placement is based on 76,258,531 shares of common stock outstanding as of July 31, 2020.
From March 31, 2020 to June 30, 2020 Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options
From December 31, 2019 to March 31, 2020 Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
from December 31, 2018 to December 31, 2019 Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs Issuance of common stock from at the market equity offering Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs, net of tax withholdings Issuance of common stock under ESPP plan
from June 30, 2019 to September 30, 2019 Issuance of common stock upon exercise of stock options Issuance of common stock under ESPP plan
From March 31, 2019 to June 30, 2019 Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs
From December 31, 2018 to March 31, 2019 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs Issuance of common stock under ESPP plan
From December 31, 2017 to December 31, 2018 Issuance of common stock upon exercise of stock options
from December 31, 2016 to December 31, 2017 Issuance of common stock upon exercise of stock options Issuance of common stock upon vesting of RSUs
from December 31, 2015 to September 30, 2016 Issuance of common stock upon exercise of stock options
From December 31, 2014 to December 31, 2015 Conversion of convertible preferred stock upon listing Issuance of common stock upon exercise of stock options Issuance of common stock upon exercise of common stock warrant Issuance of common stock upon completion of initial public offering, net of offering costs
from December 31, 2014 to September 30, 2015 Issuance of common stock upon exercise of stock options Issuance of common stock upon exercise of common stock warrants Issuance of common stock upon completion of initial public offering, net of offering costs Conversion of convertible preferred stock upon listing of the Company’s common stock on the NASDAQ
from December 31, 2014 to June 30, 2015 Conversion of convertible preferred stock upon listing of the Company’s common stock on the NASDAQ Issuance of common stock upon exercise of stock options Issuance of common stock upon exercise of common stock warrant
the automatic conversion of all shares of our preferred stock outstanding as of May 31, 2015 into an aggregate of 22,866,987 shares of our common stock in connection with this offering;
From December 31, 2014 to March 31, 2015 Issuance of common stock upon exercise of stock options
From December 31, 2013 to December 31, 2014 Issuance of Series B convertible preferred stock, net of issuance costs of $71 Issuance of Series C convertible preferred stock, net of issuance costs of $187 Issuance of Series D and D-1 convertible preferred stock, net of issuance costs of $168 Issuance of common stock upon exercise of stock options Issuance of common stock
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