Acceleron Pharma Inc. 

MA

  SEC # 1280600

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808  SEC Filings   from  2/18/04  to  12/2/21  (None in the Past Year)

List All Filings	or	Filer / Offerer   Owner / Insider   Issuer / Subject Company   Filing Agent
Most-Recent Filing:		‘15-12B’ — Certification of a Termination of Registration of a Class of Securities — Form 15 — Filed as:  Filer / Offerer
New-Filing E-Mail:			Send me notifications of all Filings involving  Acceleron Pharma Inc.

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Forms , Documents & Exhibits  in  242 Filings  Filed as:  Filer / Offerer  or  Owner / Insider

        

Latest Filing			Type		Category	Description		Documents
12/2/21	OLD		15-12B		Registration:		Certification of a Termination of Registration of a Class of Securities — Form 15  OLD	1
11/22/21	OLD		8-K		Update:		Current Reports — Form 8-K  OLD  — Press Releases & Conference Calls  — Financial Reports	125
					8-K Items:
9/30/21	OLD		Business & Operations:			•	Entry into a Material Definitive Agreement — Item 1.01  OLD  — ↓‘EX-10’	4
11/22/21	OLD		Financial Info:			•	Completion of Acquisition or Disposition of Assets — Item 2.01  OLD  — ↓‘EX-2’	1
11/4/21	OLD		"			•	Results of Operations and Financial Condition — Item 2.02  OLD  — Financial Reports	40
11/22/21	OLD		Securities & Trading:			•	Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing — Item 3.01  OLD	1
9/24/13	OLD		"			•	Unregistered Sales of Equity Securities — Item 3.02  OLD  — ↓‘EX-1’	1
11/22/21	OLD		"			•	Material Modifications to Rights of Security Holders — Item 3.03  OLD  — ↓‘EX-4’	1
11/22/21	OLD		Governance & Management:			•	Changes in Control of Registrant — Item 5.01  OLD	1
11/22/21	OLD		"			•	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers — Item 5.02  OLD  — List of Directors & Officers	25
11/22/21	OLD		"			•	Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year — Item 5.03  OLD  — ↓‘EX-3’	3
6/21/21	OLD		"			•	Submission of Matters to a Vote of Security Holders — Item 5.07  OLD	8
6/22/21	OLD		Disclosures:			•	Regulation FD Disclosure — Item 7.01  OLD  — ↓‘EX-99’	15
9/30/21	OLD		Events:			•	Other Events — Item 8.01  OLD	48
11/22/21	OLD		Financials:			•	Financial Statements and Exhibits — Item 9.01  OLD  — Financial Reports	91
11/22/21	OLD		SC 14D9		Ownership:		Tender-Offer Solicitation/Recommendation Statements — Schedule 14D-9  OLD	6
11/4/21	OLD		10-Q		Update:		Quarterly Reports — Form 10-Q  OLD  — Financial Reports	26
9/30/21	OLD		SC14D9C		Ownership:		Tender-Offer Communication by an Issuer re: a Third-Party Offer — Schedule 14D-9C  OLD	1
4/22/21	OLD		DEFA14A		Proxy:		Definitive Additional Proxy Soliciting Materials — Schedule 14A  OLD	8
4/22/21	OLD		DEF 14A		Proxy:		Definitive Proxy Statements — Schedule 14A  OLD	8
2/25/21	OLD		S-8		Registration:		Registration Statements – Securities for Certain Employee Benefit Plans — Form S-8  OLD	9
2/25/21	OLD		10-K		Update:		Annual Reports — Form 10-K  OLD  — Financial Reports	8
10/13/20	OLD		CT ORDER		SEC:		SEC Confidential Treatment Orders  OLD	7
7/1/20	OLD		424B2		Registration:		Prospectuses – Primary Offerings and Shelf Securities  OLD	3
6/29/20	OLD		424B5		Registration:		Prospectuses – Primary Offerings and Shelf Securities – New Facts or Events  OLD	5
9/19/17	OLD		S-3ASR		Registration:		Automatic Shelf Registration Statements by Well-Known Issuers — Form S-3  OLD	2
5/20/15	OLD		ARS		Update:		Annual Report to Security Holders  OLD	1
1/23/14	OLD		424B4		Registration:		Prospectuses – Info Previously Omitted & New Facts or Events  OLD	2
1/23/14	OLD		EFFECT		SEC:		SEC Notices of Effectiveness  OLD	2
1/22/14	OLD		S-1MEF		Registration:		Registration Statements to Add Securities to Prior Form S-1 Registrations  OLD	2
1/21/14	OLD		S-1		Registration:		Registration Statements (General Form) — Form S-1  OLD  — Financial Reports	5
9/27/13	OLD		D		Registration:		Notices of Exempt Offerings of Securities — Form D  OLD	5
9/18/13	OLD		CERTNAS		Trading:		Certification by the Nasdaq Stock Market Approving a Listing — Form CERT  OLD	1
9/16/13	OLD		CORRESP		Comment:		Comment-Response and Other Letters to the SEC  [ a.k.a. COVER ]  OLD  — All Correspondence with the SEC	6
9/13/13	OLD		8-A12B		Registration:		Registration Statement for a Class of Securities — Form 8-A  OLD	1
7/3/13	OLD		DRSLTR		Comment:		Comment-Response or Draft-Registration-Statement Letter to the SEC  [ a.k.a. CORRESP ]  OLD  — All Correspondence with the SEC	1
7/3/13	OLD		DRS		Registration:		Draft Registration Statement by an Emerging Growth Company or Foreign Issuer — Form DRS  OLD	1
4/10/08	OLD		REGDEX		Registration:		Notices of Exempt Offerings of Securities — Form D  OLD	8
					General Exhibits:
11/22/21	OLD		EX-3		Articles of Incorporation/Organization and Bylaws  OLD			11
11/4/21	OLD		EX-10		Material Contracts  OLD			85
9/30/21	OLD		EX-2		Plans of Acquisitions, Reorganizations, Arrangements, Liquidations and Successions  OLD			2
2/25/21	OLD		EX-23		Consents of Experts and Counsel  OLD			26
2/25/21	OLD		EX-5		Opinions of Counsel re: Legality  OLD			19
2/25/21	OLD		EX-21		Subsidiaries Lists  OLD			5
7/1/20	OLD		EX-1		Underwriting Agreements  (and mislabeled “1st Exhibits”)  OLD			7
2/27/20	OLD		EX-4		Instruments, Including Indentures, Defining the Rights of Security Holders  OLD			8
					Additional Exhibits:
11/22/21	OLD		EX-99		Miscellaneous Exhibits, such as Press Releases  OLD  — Press Releases & Conference Calls			108
					Financials:
11/22/21	OLD		XML  &  R#		IDEA Financial Reports Info  OLD  — Financial Reports			2,046
11/22/21	OLD		EXCEL		IDEA Workbooks of Financial Reports Info  OLD  — Workbooks of Financial Reports			84
11/22/21	OLD		EX-101.*		XBRL Data  (XBRL Files)  OLD			382
11/22/21	OLD		JSON		XBRL Instances as JavaScript Object Notation Data  (JSON Files)  OLD			52
11/22/21	OLD		ZIP		XBRL Zipped Folders   (Folders of XBRL Files)  OLD			76
11/4/21	OLD		EX-31		Certifications — §302 – SOA’02  OLD			68
11/4/21	OLD		EX-32		Certifications — §906 – SOA’02  OLD			35
9/19/17	OLD		EX-12		Statement re: the Computation of Ratios  OLD			1
					Graphics:
11/22/21	OLD		GRAPHIC		Photos, Images and Graphs  OLD			1,016

Forms , Documents & Exhibits  in  573 Filings  Filed re:  Issuer / Subject Company

        

List all Money Managers that own this Security Issuer:  CUSIP 00434H

        

Latest Filing			Type		Category	Description		Documents
11/24/21	OLD		SC 13D		Ownership:		Statements of Acquisitions of Beneficial Ownership by “Active” Investors — Schedule 13D  OLD	16
11/22/21	OLD		4		Ownership:		Statements of Changes in Beneficial Ownership of Securities by Insiders — Form 4  OLD	444
11/22/21	OLD		25-NSE		Trading:		Notice by a Securities Exchange of the Removal from Listing and Registration of Matured, Redeemed or Retired Securities — Form 25  OLD	1
11/22/21	OLD		SC 14D9		Ownership:		Tender-Offer Solicitation/Recommendation Statements — Schedule 14D-9  OLD	12
11/22/21	OLD		SC TO-T		Ownership:		Tender-Offer Statements by Third Parties — Schedule TO  OLD	5
11/10/21	OLD		SC 13G		Ownership:		Statements of Acquisitions of Beneficial Ownership by “Passive” Investors — Schedule 13G  OLD	49
10/1/21	OLD		SC TO-C		Ownership:		Tender-Offer Communications by Issuers and Third Parties — Schedule TO  OLD	2
9/30/21	OLD		SC14D9C		Ownership:		Tender-Offer Communications by Issuers re: Third-Party Offers — Schedule 14D-9C  OLD	2
9/17/20	OLD		3		Ownership:		Initial Statements of Beneficial Ownership of Securities by Insiders — Form 3  OLD	40
					Letters:
9/3/13	OLD		LETTER		Comment and Other Letters from the SEC  [ a.k.a. UPLOAD ]  OLD  — All Correspondence with the SEC			3
					General Exhibits:
2/2/21	OLD		EX-24		Powers of Attorney  OLD			41
5/13/14	OLD		EX-2		Plan of Acquisition, Reorganization, Arrangement, Liquidation or Succession  OLD			1
5/13/14	OLD		EX-1		Underwriting Agreement or Conflict Minerals Report  (or mislabeled “1st Exhibit”)  OLD			1
4/2/14	OLD		EX-9		Voting Trust Agreement  OLD			1
10/3/13	OLD		EX-3		Articles of Incorporation/Organization or Bylaws  OLD			1
10/3/13	OLD		EX-4		Instrument Defining the Rights of Security Holders  OLD			1
10/3/13	OLD		EX-5		Opinion of Counsel re: Legality  OLD			1
					Additional Exhibits:
11/22/21	OLD		EX-99		Miscellaneous Exhibits, such as Press Releases  OLD			35
					Financials:
10/3/13	OLD		EX-7		Correspondence from an Accountant re: Non-Reliance on a Previously Issued Audit Report or Completed Interim Review  OLD			1
					Graphics:
11/22/21	OLD		GRAPHIC		Photos, Images and Graphs  OLD			87

        

Filings History

Year		# of Filings
2021		99
2020		74
2019		68
2018		63
2017		73
2016		72
2015		134
2014		141
2013		72
2012		1
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2010		2
2009		1
2008		2
2007		1
2006		2
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2004		3