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Acceleron Pharma Inc

XLRNDelisted Nov 22, 2021
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001280600

Acceleron Pharma Inc was delisted on Nov 22, 2021; its insiders filed their last Form 4 on Nov 22, 2021; 333 institutions reported holding it in 13F filings for Q3 2021, worth $9.22B in total; no superinvestor held it.

Q3 2021 vs. Q2 2021

How the institutions holding Acceleron Pharma Inc changed between Q2 2021 and Q3 2021.

All holders in Q3 2021All holders in Q2 2021

13F holders of XLRN: Q2 2021 compared with Q3 2021
MeasureQ2 2021Of which not filed for Q3 2021Q3 2021Change
Holders2712333+64
Shares54.0M671.1K53.6M+215.8K (+0.4%)
Value$6.78B$84.2M$9.22B+$2.52B (+37.7%)

2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (99)

Institutions that held Acceleron Pharma Inc at the end of Q3 2021 but not at the end of Q2 2021.

Institutions new to XLRN in Q3 2021
InstitutionSharesValue% of portfolio
Pentwater Capital Management LP1,050,000$180.7M2.48%
Magnetar Financial LLC831,663$143.1M1.46%
Versor Investments LP401,208$69.0M2.12%
Alpine Associates Management Inc.354,300$61.0M1.98%
Davidson Kempner Capital Management LP140,729$24.2M0.35%
Balyasny Asset Management LLC140,492$24.2M0.12%
Westchester Capital Management, LLC129,432$22.3M0.70%
Voloridge Investment Management, LLC103,394$17.8M0.11%
Parallax Volatility Advisers, L.P.102,614$17.7M0.19%
Loomis Sayles & Co L P94,406$16.2M0.02%
Water Island Capital LLC89,140$15.3M0.96%
Melqart Asset Management (UK) Ltd82,000$14.1M0.71%
Carlson Capital L P80,000$13.8M0.73%
Spring Creek Capital LLC80,000$13.8M0.68%
Gabelli Funds LLC60,572$10.4M0.07%
Segantii Capital Management Ltd60,000$10.3M0.36%
SG3 Management, LLC60,000$10.3M3.66%
Man Group plc49,096$8.45M0.03%
Equitec Proprietary Markets, LLC43,293$7.45M3.95%
Quinn Opportunity Partners LLC41,208$7.09M0.45%
CNH Partners LLC41,122$7.08M0.20%
Gabelli & Co Investment Advisers, Inc.40,550$6.98M0.84%
Picton Mahoney Asset Management35,000$6.03M0.23%
Vivaldi Asset Management, LLC34,350$5.91M0.90%
Odey Asset Management Group Ltd33,800$5.82M1.55%
Omni Partners US LLC29,500$5.08M0.26%
Alberta Investment Management Corp28,800$4.97M0.04%
Mizuho Securities USA LLC28,000$4.82M0.49%
Vestcor Inc28,000$4.82M0.17%
LMR Partners LLP27,190$4.68M0.06%
Bardin Hill Management Partners LP26,448$4.55M0.74%
Hunting Hill Global Capital, LLC25,000$4.30M1.59%
Ramius Advisors LLC24,830$4.27M2.64%
DuPont Capital Management Corp23,200$3.99M0.13%
Walleye Capital LLC22,854$3.93M0.12%
Yakira Capital Management, Inc.21,750$3.74M0.58%
Group One Trading, L.P.21,002$3.61M0.08%
Hudson Bay Capital Management LP20,000$3.44M0.05%
Chescapmanager LLC20,000$3.44M0.53%
S. Muoio & Co. LLC15,000$2.58M2.18%
Pictet Asset Management SA14,765$2.54M0.00%
Havens Advisors LLC14,000$2.41M2.92%
Marshall Wace, LLP12,096$2.08M0.01%
TIG Advisors, LLC10,003$1.72M0.08%
Mason Capital Management LLC10,000$1.72M0.80%
Alpine Global Management, LLC9,846$1.69M0.38%
Brookfield Asset Management Inc.9,500$1.64M0.01%
Quantbot Technologies LP8,553$1.47M0.11%
Pier 88 Investment Partners LLC7,400$1.27M0.38%
PointState Capital LP6,000$1.03M0.02%
Qube Research & Technologies Ltd6,000$1.03M0.01%
Omers Administration Corp5,800$998.0K0.01%
Pearl River Capital, LLC5,789$996.0K0.27%
Keebeck Alpha, LP5,717$984.0K0.30%
GAM Holding AG5,700$981.0K0.05%
Gamco Investors, Inc. Et Al5,378$926.0K0.01%
Algert Global LLC5,358$922.0K0.12%
BCK Capital Management LP5,000$861.0K0.51%
Bluefin Capital Management, LLC4,987$858.0K0.10%
BTG Pactual Global Asset Management Ltd4,000$688.0K0.63%
FORA Capital, LLC3,881$668.0K0.17%
Sassicaia Capital Advisers LLC3,800$654.0K1.85%
Prelude Capital Management, LLC3,691$635.0K0.03%
XTX Topco Ltd3,450$594.0K0.20%
Virtu Financial LLC3,355$577.0K0.05%
Cowen and Company, LLC3,253$560.0K0.03%
Private Advisor Group, LLC2,974$512.0K0.00%
Y-Intercept (Hong Kong) Ltd2,683$462.0K0.08%
Teza Capital Management LLC2,617$450.0K0.22%
Neo Ivy Capital Management4,535$432.0K0.50%
Camarda Financial Advisors, LLC2,433$419.0K0.28%
Marshall Wace North America L.P.2,314$398.0K0.00%
Telemetry Investments, L.L.C.2,000$344.0K0.47%
Mint Tower Capital Management B.V.2,000$344.0K0.06%
Caxton Associates LP1,924$331.0K0.05%
Shay Capital LLC1,878$323.0K0.10%
Verition Fund Management LLC1,716$295.0K0.00%
Baxter Bros Inc1,550$267.0K0.04%
Fulton Bank, N.A.1,507$260.0K0.01%
IBM Retirement Fund1,492$257.0K0.02%
Cerity Partners LLC1,466$252.0K0.01%
Mirae Asset Global Investments Co., Ltd.1,417$244.0K0.00%
Commonwealth Equity Services, LLC1,349$232.0K0.00%
Blair William & Co1,323$228.0K0.00%
E Fund Management Co., Ltd.1,302$224.0K0.01%
Bridgefront Capital, LLC1,232$212.0K0.22%
Woodline Partners LP1,173$202.0K0.00%
Keybank National Association1,163$200.0K0.00%
Knott David M1,000$172.0K0.07%
Dark Forest Capital Management LP834$144.0K0.05%
Sphinx Trading, LP700$120.0K0.16%
Canada Pension Plan Investment Board635$109.0K0.00%
PenderFund Capital Management Ltd.200$44.0K0.01%
CenterStar Asset Management, LLC–$42.0K0.03%
FNY Investment Advisers, LLC240$41.0K0.02%
Meridian Wealth Partners, LLC111$19.0K0.00%
First Manhattan Co16$2.00K0.00%
Ci Investments Inc.3$1.00K0.00%
Bell Investment Advisors, Inc4$1.00K0.00%

Sold out (35)

Institutions that held Acceleron Pharma Inc at the end of Q2 2021 and filed for Q3 2021 without it.

Not filed for Q3 2021 yet (2)

Institutions that held Acceleron Pharma Inc at the end of Q2 2021 and haven't filed a 13F for Q3 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding XLRN in Q2 2021 that haven't filed for Q3 2021
InstitutionShares, Q2 2021Value, Q2 2021
Pictet Asset Management Ltd671,041$84.2M
CWM, LLC21$3.00K