Spero Therapeutics, Inc. 

MA

  SEC # 1701108

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421  SEC Filings   from  3/21/17  to  4/16/24  (Last Week)

List All Filings	or	Filer / Offerer   Owner / Insider   Issuer / Subject Company   Filing Agent
Most-Recent Filing:		‘ARS’ — Annual Report to Security Holders — for 12/31/23 — Filed as:  Filer / Offerer
New-Filing E-Mail:			Send me notifications of all Filings involving  Spero Therapeutics, Inc.

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Forms , Documents & Exhibits  in  187 Filings  Filed as:  Filer / Offerer  or  Owner / Insider

        

Latest Filing			Type		Category	Description		Documents
4/16/24			ARS		Update:		Annual Reports to Security Holders	2
4/16/24			DEFA14A		Proxy:		Definitive Additional Proxy Soliciting Materials — Schedule 14A	2
4/16/24			DEF 14A		Proxy:		Definitive Proxy Statements — Schedule 14A    — Financial Reports	7
3/29/24			8-K		Update:		Current Reports — Form 8-K    — Press Releases & Conference Calls  — Financial Reports	94
					8-K Items:
9/22/22	OLD		Business & Operations:			•	Entry into a Material Definitive Agreement — Item 1.01  OLD  — ↓‘EX-10’	11
6/7/22	OLD		"			•	Termination of a Material Definitive Agreement — Item 1.02  OLD  — ↓‘EX-10’	1
3/13/24			Financial Info:			•	Results of Operations and Financial Condition — Item 2.02 — Financial Reports	30
9/30/21	OLD		"			•	Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant — Item 2.03  OLD  — ↓‘EX-10’	3
5/3/22	OLD		"			•	Cost Associated with Exit or Disposal Activities — Item 2.05  OLD	1
9/22/22	OLD		Securities & Trading:			•	Unregistered Sales of Equity Securities — Item 3.02  OLD  — ↓‘EX-1’	4
2/28/20	OLD		"			•	Material Modifications to Rights of Security Holders — Item 3.03  OLD  — ↓‘EX-4’	2
2/9/24			Governance & Management:			•	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers — Item 5.02 — List of Directors & Officers	21
10/16/23			"			•	Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year — Item 5.03 — ↓‘EX-3’	8
10/16/23			"			•	Submission of Matters to a Vote of Security Holders — Item 5.07	7
1/8/24			Disclosures:			•	Regulation FD Disclosure — Item 7.01 — ↓‘EX-99’	16
3/29/24			Events:			•	Other Events — Item 8.01	33
3/13/24			Financials:			•	Financial Statements and Exhibits — Item 9.01 — Financial Reports	81
3/25/24			EFFECT		SEC:		SEC Notices of Effectiveness	5
3/20/24			CORRESP		Comment:		Comment-Response and Other Letters to the SEC  [ a.k.a. COVER ] — All Correspondence with the SEC	7
3/15/24			S-3		Registration:		Registration Statements – Securities for Transactions — Form S-3	3
3/15/24			S-8		Registration:		Registration Statements – Securities for Certain Employee Benefit Plans — Form S-8	13
3/13/24			10-K		Update:		Annual Reports — Form 10-K — Financial Reports	8
11/13/23			10-Q		Update:		Quarterly Reports — Form 10-Q — Financial Reports	19
8/22/23			PRE 14A		Proxy:		Preliminary Proxy Statements — Schedule 14A	2
1/19/23	OLD		CT ORDER		SEC:		SEC Confidential Treatment Orders  OLD	5
11/14/22	OLD		D		Registration:		Notices of Exempt Offerings of Securities — Form D  OLD	3
11/13/20	OLD		424B5		Registration:		Prospectuses – Primary Offerings and Shelf Securities – New Facts or Events  OLD	5
7/13/18	OLD		424B4		Registration:		Prospectuses – Info Previously Omitted & New Facts or Events  OLD	2
7/11/18	OLD		S-1		Registration:		Registration Statements (General Form) — Form S-1  OLD  — Financial Reports	4
5/24/18	OLD		DRS		Registration:		Draft Registration Statements by Emerging Growth Companies and Foreign Issuers — Form DRS  OLD	4
11/1/17	OLD		CERTNAS		Trading:		Certification by the Nasdaq Stock Market Approving a Listing — Form CERT  OLD	1
10/30/17	OLD		8-A12B		Registration:		Registration Statement for a Class of Securities — Form 8-A  OLD	1
9/29/17	OLD		DRSLTR		Comment:		Comment-Response or Draft-Registration-Statement Letter to the SEC  [ a.k.a. CORRESP ]  OLD  — All Correspondence with the SEC	1
					General Exhibits:
3/15/24			EX-23		Consents of Experts and Counsel			27
3/15/24			EX-FILING FEES		Filing Fees			7
3/15/24			EX-4		Instruments, Including Indentures, Defining the Rights of Security Holders			17
3/15/24			EX-5		Opinions of Counsel re: Legality			22
3/13/24			EX-97		Clawback Policy re: Recovery of Erroneously Awarded Compensation			1
3/13/24			EX-10		Material Contracts			96
11/13/23			EX-3		Articles of Incorporation/Organization and Bylaws			18
9/14/20	OLD		EX-1		Underwriting Agreements  (and mislabeled “1st Exhibits”)  OLD			5
3/16/20	OLD		EX-21		Subsidiaries Lists  OLD			5
					Additional Exhibits:
3/13/24			EX-99		Miscellaneous Exhibits, such as Press Releases — Press Releases & Conference Calls			86
					Financials:
4/16/24			XML  &  R#		IDEA Financial Reports Info    — Financial Reports			1,762
4/16/24			EX-101.*		XBRL Data  (XBRL Files)			312
4/16/24			JSON		XBRL Instances as JavaScript Object Notation Data  (JSON Files)			71
4/16/24			ZIP		XBRL Zipped Folders   (Folders of XBRL Files)			83
3/29/24			EXCEL		IDEA Workbooks of Financial Reports Info    — Workbooks of Financial Reports			82
3/13/24			EX-31		Certifications — §302 – SOA’02			54
3/13/24			EX-32		Certifications — §906 – SOA’02			39
10/6/17	OLD		EX-16		Letters re: Changes in Accountants  OLD			2
					Graphics:
4/16/24			GRAPHIC		Photos, Images and Graphs			633

Forms , Documents & Exhibits  in  234 Filings  Filed re:  Issuer / Subject Company

        

List all Money Managers that own this Security Issuer:  CUSIP 84833T

        

Latest Filing			Type		Category	Description		Documents
2/14/24			SC 13G		Ownership:		Statements of Acquisitions of Beneficial Ownership by “Passive” Investors — Schedule 13G	33
2/5/24			4		Ownership:		Statements of Changes in Beneficial Ownership of Securities by Insiders — Form 4	155
2/5/24			144		Ownership:		Notices of Proposed Sales of Securities by Insiders — Form 144	2
11/15/23			3		Ownership:		Initial Statements of Beneficial Ownership of Securities by Insiders — Form 3	30
1/20/23	OLD		SC 13D		Ownership:		Statements of Acquisitions of Beneficial Ownership by “Active” Investors — Schedule 13D  OLD	11
					Letters:
3/20/24			LETTER		Comment and Other Letters from the SEC  [ a.k.a. UPLOAD ] — All Correspondence with the SEC			3
3/20/24			TEXT-EXTRACT		Comment and Other Letters from the SEC – PDFs’ Text  [ a.k.a. LETTER ]			2
					General Exhibits:
11/15/23			EX-24		Powers of Attorney			34
11/16/17	OLD		EX-2		Plan of Acquisition, Reorganization, Arrangement, Liquidation or Succession  OLD			1
					Additional Exhibits:
2/14/24			EX-99		Miscellaneous Exhibits, such as Press Releases			9

        

Filings History

Year		# of Filings
2024		24
2023		53
2022		64
2021		70
2020		67
2019		42
2018		53
2017		48