Aegion Corp Watch

EX-4.1

from 10-K 1 page Aegion Corporation Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934

12/34/56

EX-4.1

from 8-K12B 44 pages Rights Agreement Aegion Corporation and American Stock Transfer & Trust Company, LLC as Rights Agent Dated as of October 6, 2011 Index

12/34/56

EX-4.2

from 8-K 87 pages Insituform Technologies, Inc., Issuer and [ ], Trustee Indenture Dated as of [ ], 2008 Subordinated Debt Securities Reconciliation and Tie Between Trust Indenture Act of 1939 (The “Trust Indenture Act”) and Indenture

12/34/56

EX-4.1

from 8-K 77 pages Insituform Technologies, Inc., Issuer and [ ], Trustee Indenture Dated as of [ ], 2008 Senior Debt Securities Reconciliation and Tie Between Trust Indenture Act of 1939 (The “Trust Indenture Act”) and Indenture

12/34/56

EX-4

from S-8 ~10 pages Indenture or similar

12/34/56

EX-4

from S-8 ~10 pages Indenture or similar

12/34/56

EX-4

from S-8 ~5 pages Indenture or similar

12/34/56

EX-4

from S-8 ~10 pages Indenture or similar

12/34/56

EX-4.II

from S-8 ~5 pages Indenture or similar

12/34/56

EX-4.I

from S-8 ~10 pages Indenture or similar

12/34/56

EX-4

from 8-K >50 pages Indenture or similar

12/34/56

EX-4

from SC 13D 1 page Form of Pooling Letter Agreement

12/34/56

EX-4

from SC 13D ~5 pages Form of Employment Agreement

12/34/56