Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 2 U.S. retirement plans report holding State Street Mid Cap Index Securities Lending Series Fund Class II in their Schedule of Assets, totaling $24.3M in parsed positions. Matched on the normalized security name across each plan’s latest filing and ranked by position size.
| # | Sponsor / Plan | Location | Participants | Plan assets (EOY) | Position |
|---|---|---|---|---|---|
| 1 | US ONCOLOGY CORPORATE, INC. TEXAS ONCOLOGY, P.A. 401(K) PLAN | DALLAS TX | 4,845 | $1.2B | $19.0M |
| 2 | US ONCOLOGY CORPORATE, INC. US ONCOLOGY, INC. 401(K) PLAN | THE WOODLANDS TX | 8,107 | $357.5M | $5.3M |
