Upstart Securitization Trust Upstart Securitization Trust 2022-4 is a security (CUSIP 91678YAB1) tracked across SEC portfolio filings. 2 registered fund positions totaling $1.0M via N-PORT as of 2026-03-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| RiverNorth/DoubleLine Strategic Income Fund | RIVERNORTH FUNDS | $548K | 5.48% |
| DoubleLine Income Solutions Fund | DoubleLine Income Solutions Fund | $460K | 3.53% |