Ridgeback Capital Management LLC

10% owner at Theriva Biologics, Inc. · on record since Nov 29, 2006
10% owner at Acorda Therapeutics, Inc. · on record since Oct 5, 2006
10% owner at PENNSYLVANIA POWER CO · on record since Nov 13, 2007
10% owner at SEQUENOM INC · on record since Jun 30, 2008
10% owner at IRONWOOD PHARMACEUTICALS INC · on record since Feb 8, 2010
10% owner at Verastem, Inc. · on record since Jan 21, 2020

Insider trading activity of Ridgeback Capital Management LLC

Transactions on record: 42; since Jul 1, 2008

Open-market buys: 27; $12.7M

Open-market sells: 15; $23M

Companies traded: 2; last filing Feb 9, 2012

Figures computed from official regulatory filings — .

Companies where Ridgeback Capital Management LLC has traded

IRONWOOD PHARMACEUTICALS INC3 tx · $1.7M · Feb 9, 2012
SEQUENOM INC39 tx · $34M · May 1, 2009

Track record of Ridgeback Capital Management LLC

Open-market buys: 27

Last buy: Aug 4, 2008

Enough buys on record, but none of them has a 63-day return yet — this happens when the shares stopped trading, or when the buys are too recent. Win rates will appear once returns mature.

Transaction history of Ridgeback Capital Management LLC

Co-insiders of Ridgeback Capital Management LLC

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
IRONWOOD PHARMACEUTICALS INCListing on record	Feb 9, 2012	Sell	-61,949	14.92 USD	$924.3K		SEC
IRONWOOD PHARMACEUTICALS INCListing on record	Feb 9, 2012	Sell	-47,229	14.80 USD	$699K		SEC
IRONWOOD PHARMACEUTICALS INCListing on record	Feb 9, 2012	Sell	-3,300	15.03 USD	$49.6K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-77,788	3.23	$251.3K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-15,025	9.00	$135.2K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-1,420,587	3.43	$4.9M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-299,717	6.01	$1.8M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-2,820	8.05	$22.7K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-36,600	4.23	$154.8K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-126,457	7.42	$938.3K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-441,503	3.02	$1.3M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-709,484	5.27	$3.7M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-250,000	3.50	$875K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-500,000	3.64	$1.8M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-1,200,481	4.51	$5.4M		SEC
SEQUENOM INCListing unverified	Aug 6, 2008	Buy	92,296	20.95	$1.9M	conv 50ClusterUnusual size	SEC
SEQUENOM INCListing unverified	Aug 6, 2008	Buy	157,704	20.89	$3.3M	conv 50ClusterUnusual size	SEC
SEQUENOM INCListing unverified	Aug 4, 2008	Buy	65,000	20.99	$1.4M	conv 50ClusterUnusual size	SEC
SEQUENOM INCListing unverified	Aug 4, 2008	Buy	35,000	20.88	$730.8K	conv 36Cluster	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	17,959	15.20	$273K	conv 41ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	2,041	15.19	$31K	conv 41ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	31,958	15.15	$484.2K	conv 41ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	100,100	15.27	$1.5M	conv 42ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	23,791	15.30	$364K	conv 41ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	600	15.29	$9.2K	conv 41ClusterFirst in 12mo	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
IRONWOOD PHARMACEUTICALS INCListing on record	Feb 9, 2012	Sell	-61,949	14.92 USD	$924.3K		SEC
IRONWOOD PHARMACEUTICALS INCListing on record	Feb 9, 2012	Sell	-47,229	14.80 USD	$699K		SEC
IRONWOOD PHARMACEUTICALS INCListing on record	Feb 9, 2012	Sell	-3,300	15.03 USD	$49.6K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-77,788	3.23	$251.3K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-15,025	9.00	$135.2K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-1,420,587	3.43	$4.9M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-299,717	6.01	$1.8M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-2,820	8.05	$22.7K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-36,600	4.23	$154.8K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-126,457	7.42	$938.3K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-441,503	3.02	$1.3M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-709,484	5.27	$3.7M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-250,000	3.50	$875K		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-500,000	3.64	$1.8M		SEC
SEQUENOM INCListing unverified	May 1, 2009	Sell	-1,200,481	4.51	$5.4M		SEC
SEQUENOM INCListing unverified	Aug 6, 2008	Buy	92,296	20.95	$1.9M	conv 50ClusterUnusual size	SEC
SEQUENOM INCListing unverified	Aug 6, 2008	Buy	157,704	20.89	$3.3M	conv 50ClusterUnusual size	SEC
SEQUENOM INCListing unverified	Aug 4, 2008	Buy	65,000	20.99	$1.4M	conv 50ClusterUnusual size	SEC
SEQUENOM INCListing unverified	Aug 4, 2008	Buy	35,000	20.88	$730.8K	conv 36Cluster	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	17,959	15.20	$273K	conv 41ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	2,041	15.19	$31K	conv 41ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	31,958	15.15	$484.2K	conv 41ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	100,100	15.27	$1.5M	conv 42ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	23,791	15.30	$364K	conv 41ClusterFirst in 12mo	SEC
SEQUENOM INCListing unverified	Jul 1, 2008	Buy	600	15.29	$9.2K	conv 41ClusterFirst in 12mo	SEC