Ridgeback Capital Investments L.P.

CIK 1423994 · last filed 2012-02-09

Ridgeback Capital Investments L.P. is a corporate insider who has filed 2 SEC Form 4 insider transactions across 2 companies since 2008. The most recent filing shows the insider sold $5.0M of IRWD on Feb 9, 2012. Across all open-market trades the lifetime net is +$83.2M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $26.1M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$26.11M

Companies

2

Total Filings

2

Lifetime Open-Market Net

$83.21M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
IRWD	10%+ Owner	6,890,068	$3.79	$26.11M	-$5.02M	1	2012-02-09
SEQUENOM INC (SQNM) Delisted	10%+ Owner	8,670,900	—	—	$88.23M	1	2008-07-17

Recent Filings

2 filings

Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.

Filed	Symbol	Action	Net Shares	Net $	Link
2012-02-09	IRWD	Sell (S)	−337,434	-$5.02M	EDGAR
2008-07-17	SEQUENOM INC (SQNM) Delisted	Buy (P)	+4,200,000	$88.23M	EDGAR

Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.