Institutional Investors Advisory Company
- Regulatory AUM
- $24.8M
- Discretionary
- $24.8M
- Clients
- 2
- Avg AUM / client
- $12.4M
- Accounts
- 2
- Employees
- 4
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Jul 16, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Pooled investment vehicles (non-investment companies) | 2 | $24.8M | 100.0% |
Private funds (2)
Reported in Form ADV Section 7.B.(1), filing of Jun 2020 · $59.2M combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| Iiif Mary Fund, Llc | Other Private Fund | Delaware | $30.2M | 35 |
| Iiif William Fund, Llc | Other Private Fund | Delaware | $29.0M | 34 |
People (3)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Zielinski, Barbara, Marie | Trustee | Dec 2004 (22y) | GP / trustee / elected manager of William L. Zielinski, Trustee, U/T William L. Zielinski Trust, Dated Oct. 16, 1990 (indirect) | |
| Zielinski, Gregory, William | President | Dec 2004 (22y) | Less than 5% | |
| Margaret Mary Stauder | Chief Compliance Officer | Jun 2020 (6y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| William L. Zielinski, Trustee, U/T William L. Zielinski Trust, Dated Oct. 16, 1990 | Owner | Dec 2004 | A | 75% or more |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Private funds (2, $59.2M gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| Iiif Mary Fund, Llc | Other Private Fund | $30.2M | $500K | 35 |
| Iiif William Fund, Llc | Other Private Fund | $29.0M | $200K | 34 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 07/16/2026 | 1.62 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
Allegations: INSTITUTIONAL INVESTORS ADVISORY COMPANY (IIAC) HAS A PRIVATE FUND CLIENT-INSTITUTIONAL INVESTORS INCOME FUND (IIIF). THE SEC ALLEGED THAT IIAC INADEQUATELY DISCLOSED IIIF'S USE AND OPERATION OF A RESERVE, WHICH USE INCREASED THE ADVISORY FEES IIAC EARNED FROM IIIF, AND FURTHER THAT IIAC FAILED TO DISCLOSE THE ASSOCIATED CONFLICT OF INTEREST. THE ORDER DID NOT SUGGEST THAT IIAC'S ADVISORY FEES CALCULATED ON IIIF'S RESERVE WERE NOT PAID FOR SERVICES FAIRLY RENDERED TO IIIF. Status: Final Sanction Detail: THE SEC ORDERED IIAC TO CEASE AND DESIST FROM COMMITTING ANY VIOLATION OF SECTION 206(2) OF THE INVESTMENT ADVISERS ACT, TO UNDERTAKE TO PAY A GROUP OF INVESTORS $1,268,536, TO DISGORGE $531,680, TO PAY PREJUDGMENT INTEREST OF $61,507, AND TO PAY A CIVIL PENALTY OF $250,000. OF SUCH AMOUNTS, IIAC PAID $451,694.60 ON 8/25/17, AND HAS PAID $677,541.90 ON 2/12/18, AND PAID $421,593.50 ON 8/21/18 AND $707,643.00 ON 8/29/18. ALL CONDITIONS OF THE ORDER HAVE BEEN SATISFIED. Summary: INSTITUTIONAL INVESTORS ADVISORY COMPANY (IIAC) HAS A PRIVATE FUND CLIENT-INSTITUTIONAL INVESTORS INCOME FUND (IIIF). THE SEC ALLEGED THAT IIAC INADEQUATELY DISCLOSED IIIF'S USE AND OPERATION OF A RESERVE, WHICH USE INCREASED THE ADVISORY FEES IIAC EARNED FROM IIIF, AND FURTHER THAT IIAC FAILED TO DISCLOSE THE ASSOCIATED CONFLICT OF INTEREST. WITHOUT ADMITTING OR DENYING THE SEC'S FACTUAL OR LEGAL CONCLUSIONS, IIAC ELECTED TO SETTLE THE MATTER IN A WAY THAT MINIMIZED DISRUPTION TO ITS CLIENT AND IN A WAY THAT PREVENTED POTENTIAL COSTS TO ITS CLIENT. THE ORDER DID NOT SUGGEST THAT IIAC'S ADVISORY FEES CALCULATED ON IIIF'S RESERVE WERE NOT PAID FOR SERVICES FAIRLY RENDERED TO IIIF.
Allegations: INSTITUTIONAL INVESTORS ADVISORY COMPANY (IIAC) HAS A PRIVATE FUND CLIENT-INSTITUTIONAL INVESTORS INCOME FUND (IIIF). THE SEC ALLEGED THAT IIAC INADEQUATELY DISCLOSED IIIF'S USE AND OPERATION OF A RESERVE, WHICH USE INCREASED THE ADVISORY FEES IIAC EARNED FROM IIIF, AND FURTHER THAT IIAC FAILED TO DISCLOSE THE ASSOCIATED CONFLICT OF INTEREST. THE ORDER DID NOT SUGGEST THAT IIAC'S ADVISORY FEES CALCULATED ON IIIF'S RESERVE WERE NOT PAID FOR SERVICES FAIRLY RENDERED TO IIIF. Status: Final Sanction Detail: THE SEC ORDERED IIAC TO CEASE AND DESIST FROM COMMITTING ANY VIOLATION OF SECTION 206(2) OF THE INVESTMENT ADVISERS ACT, TO UNDERTAKE TO PAY A GROUP OF INVESTORS $1,268,536, TO DISGORGE $531,680, TO PAY PREJUDGMENT INTEREST OF $61,507, AND TO PAY A CIVIL PENALTY OF $250,000. OF SUCH AMOUNTS, IIAC PAID $451,694.60 ON 8/25/17, AND HAS PAID $677,541.90 ON 2/12/18, AND PAID $421,593.50 ON 8/21/18 AND $707,643.00 ON 8/29/18. ALL CONDITIONS OF THE ORDER HAVE BEEN SATISFIED. Summary: INSTITUTIONAL INVESTORS ADVISORY COMPANY (IIAC) HAS A PRIVATE FUND CLIENT-INSTITUTIONAL INVESTORS INCOME FUND (IIIF). THE SEC ALLEGED THAT IIAC INADEQUATELY DISCLOSED IIIF'S USE AND OPERATION OF A RESERVE, WHICH USE INCREASED THE ADVISORY FEES IIAC EARNED FROM IIIF, AND FURTHER THAT IIAC FAILED TO DISCLOSE THE ASSOCIATED CONFLICT OF INTEREST. WITHOUT ADMITTING OR DENYING THE SEC'S FACTUAL OR LEGAL CONCLUSIONS, IIAC ELECTED TO SETTLE THE MATTER IN A WAY THAT MINIMIZED DISRUPTION TO ITS CLIENT AND IN A WAY THAT PREVENTED POTENTIAL COSTS TO ITS CLIENT. THE ORDER DID NOT SUGGEST THAT IIAC'S ADVISORY FEES CALCULATED ON IIIF'S RESERVE WERE NOT PAID FOR SERVICES FAIRLY RENDERED TO IIIF.
Allegations: INSTITUTIONAL INVESTORS ADVISORY COMPANY (IIAC) HAS A PRIVATE FUND CLIENT-INSTITUTIONAL INVESTORS INCOME FUND (IIIF). THE SEC ALLEGED THAT IIAC INADEQUATELY DISCLOSED IIIF'S USE AND OPERATION OF A RESERVE, WHICH USE INCREASED THE ADVISORY FEES IIAC EARNED FROM IIIF, AND FURTHER THAT IIAC FAILED TO DISCLOSE THE ASSOCIATED CONFLICT OF INTEREST. THE ORDER DID NOT SUGGEST THAT IIAC'S ADVISORY FEES CALCULATED ON IIIF'S RESERVE WERE NOT PAID FOR SERVICES FAIRLY RENDERED TO IIIF. Status: Final Sanction Detail: THE SEC ORDERED IIAC TO CEASE AND DESIST FROM COMMITTING ANY VIOLATION OF SECTION 206(2) OF THE INVESTMENT ADVISERS ACT, TO UNDERTAKE TO PAY A GROUP OF INVESTORS $1,268,536, TO DISGORGE $531,680, TO PAY PREJUDGMENT INTEREST OF $61,507, AND TO PAY A CIVIL PENALTY OF $250,000. OF SUCH AMOUNTS, IIAC PAID $451,694.60 ON 8/25/17, AND HAS PAID $677,541.90 ON 2/12/18, AND PAID $421,593.50 ON 8/21/18 AND $707,643.00 ON 8/29/18. ALL CONDITIONS OF THE ORDER HAVE BEEN SATISFIED. Summary: INSTITUTIONAL INVESTORS ADVISORY COMPANY (IIAC) HAS A PRIVATE FUND CLIENT-INSTITUTIONAL INVESTORS INCOME FUND (IIIF). THE SEC ALLEGED THAT IIAC INADEQUATELY DISCLOSED IIIF'S USE AND OPERATION OF A RESERVE, WHICH USE INCREASED THE ADVISORY FEES IIAC EARNED FROM IIIF, AND FURTHER THAT IIAC FAILED TO DISCLOSE THE ASSOCIATED CONFLICT OF INTEREST. WITHOUT ADMITTING OR DENYING THE SEC'S FACTUAL OR LEGAL CONCLUSIONS, IIAC ELECTED TO SETTLE THE MATTER IN A WAY THAT MINIMIZED DISRUPTION TO ITS CLIENT AND IN A WAY THAT PREVENTED POTENTIAL COSTS TO ITS CLIENT. THE ORDER DID NOT SUGGEST THAT IIAC'S ADVISORY FEES CALCULATED ON IIIF'S RESERVE WERE NOT PAID FOR SERVICES FAIRLY RENDERED TO IIIF.
Disclosure text reproduced verbatim from the firm's own Form ADV filings.
How they charge
- • Percentage of assets under management
Services
- • Portfolio management for pooled investment vehicles
Custody
Firm reports having custody of client funds or securities (Item 9.A).
No custodian data reported or mined yet.
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Jul 16, 2026.
View current Form ADV (SEC/IAPD) ↗