Illinois Teachers chalks up $1.3 billion in investments, commitments Print Illinois Teachers' Retirement System, Springfield, invested or committed a total of $1.3 billion to nine investment strategies and terminated four traditional investment firms managing $1.1 billion, news from virtual investment committee and full board meetings Thursday and Friday showed. The largest commitment from the $57.6 billion pension fund was $400 million to private equity specialist Adams Street Partners, a new manager for TRS. The firm will evenly split the allocation between separately managed accounts that will invest in strategies managed by other private equity managers based in Europe and the Asia-Pacific region. TRS retains approval of Adams Street's recommended investments.