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Spero Therapeutics Inc. – Indentures

NASDAQ: SPRO    
Share price (11/6/26): $1.03    
Market cap (11/6/26): $60.0 million
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EX-4.12
from S-3 8 pages Form of Subordinated Note
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EX-4.11
from S-3 8 pages Form of Senior Note
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EX-4.10
from S-3 61 pages Spero Therapeutics, Inc. and Trustee Indenture Dated as of Subordinated Debt Securities
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EX-4.9
from S-3 59 pages Spero Therapeutics, Inc. and Trustee Indenture Dated as of Senior Debt Securities
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EX-4.11
from S-3 50 pages Spero Therapeutics, Inc. Issuer and [ ] Trustee Indenture Dated as of [ ] Subordinated Debt Securities
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EX-4.10
from S-3 51 pages Spero Therapeutics, Inc. Issuer and [ ] Trustee Indenture Dated as of [ ] Senior Debt Securities
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EX-4.5
from S-8 17 pages Spero Therapeutics, Inc. 2019 Inducement Equity Incentive Plan
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EX-4.7
from S-8 6 pages Spero Therapeutics, Inc. Restricted Stock Unit Award Grant Notice Restricted Stock Unit Award Grant Under the Company’s 2019 Inducement Equity Incentive Plan
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EX-4.6
from S-8 8 pages Spero Therapeutics, Inc. Stock Option Agreement—incorporated Terms and Conditions
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EX-4.5
from S-8 17 pages Spero Therapeutics, Inc. 2019 Inducement Equity Incentive Plan
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EX-4
from 10-K 4 pages Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934, as Amended
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EX-4.3
from 10-K 4 pages Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934, as Amended
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EX-4.6
from S-8 11 pages Spero Therapeutics, Inc. Stock Option Agreement—incorporated Terms and Conditions
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EX-4.10
from S-3 51 pages Spero Therapeutics, Inc. Issuer and [ ] Trustee Indenture Dated as of [ ] Subordinated Debt Securities
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EX-4.9
from S-3 51 pages Spero Therapeutics, Inc. Issuer and [ ] Trustee Indenture Dated as of [ ] Senior Debt Securities
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EX-4.3
from 10-K 2 pages Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934, as Amended
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EX-4.8
from S-3 42 pages Spero Therapeutics, Inc. Issuer and [ ] Trustee Indenture Dated as of [ ] Subordinated Debt Securities
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EX-4.7
from S-3 42 pages Spero Therapeutics, Inc. Issuer and [ ] Trustee Indenture Dated as of [ ] Senior Debt Securities
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EX-4.2
from S-1 49 pages Spero Therapeutics, Inc. Investors’ Rights Agreement June 30, 2017
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EX-4.1
from S-1 2 pages Indenture or similar
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