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Commonwealth Edison Co.
Unicom Corp.
Exelon Corp.
Constellation Energy Group.
3/12/2012
Type: Merger
Shares: 0.93 shares of Exelon for each
share of Constellation Energy Group
Basis Allocation: The basis of Exelon
Shares received generally will equal the
aggregate bass in the corresponding
Constellation Energy Group share(s)
that were surrendered reduced by the
basis allocated to the fractional shares,
if any.
This chart will give you a good visual overview of Commonwealth Edison, Unicom, and Exelon stock splits,name changes,mergers and spin-offs. Also included is Constellation Energy Group merger. See Exelon Stock, Dividends, and Corporate history
Unicom formed as a holding corp. (1 share of CommEd received 1 share of Unicom.
Merged into Exelon Corp (per 1 share of Unicom received .875 shares of Exelon Corp.
9/1/1994
10/20/2000

Here is a flowchart to help you determine CommEd, Unicom, and Exelon cost basis.

CommEd / Unicom / Exelon

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