# EDGAR Filing Document

**Accession Number:** 0001331854
**File Stem:** 0001752724-23-065123
**Filing Date:** 2023-3
**Character Count:** 39616
**Document Hash:** 4c6c9efa4acdd2396bb433fa5f29baf9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-065123.hdr.sgml**: 20230324

**ACCESSION NUMBER**: 0001752724-23-065123

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230131

**FILED AS OF DATE**: 20230324

**DATE AS OF CHANGE**: 20230324

**PERIOD START**: 20230731

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Pioneer Series Trust IV
- **CENTRAL INDEX KEY:** 0001331854
- **IRS NUMBER:** 000000000

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-21781
- **FILM NUMBER:** 23758421

**BUSINESS ADDRESS:**
- **STREET 1:** 60 STATE STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 617-742-7825

**MAIL ADDRESS:**
- **STREET 1:** 60 STATE STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

## Series and Classes Contracts Data

### Pioneer Securitized Income Fund (Series ID: S000072337)

| Class ID   | Class Name                                       | Ticker Symbol   |
|:---|:---|:---|
| C000228470 | Pioneer Securitized Income Fund : Class Y Shares | SYFFX           |
| C000228471 | Pioneer Securitized Income Fund : Class A Shares | SIFFX           |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** Pioneer Series Trust IV

- **b. Investment Company Act file number:** 811-21781

- **c. CIK number of Registrant:** 0001331854

- **d. LEI of Registrant:** 549300BKCIMH3RA95865

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 60 State Street

  - **City:** Boston

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 02109

  - **Telephone number:** 617-422-4947

**Item A.2. Information about the Series.**

- **a. Name of Series:** Pioneer Securitized Income Fund

- **b. EDGAR series identifier (if any):** S000072337

- **c. LEI of Series:** 549300NPIBL3LB916817

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2023-07-31

- **b. Date as of which information is reported:** 2023-01-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $30063708.42

**Total Liabilities:** $3028422.23

**Net Assets:** $27035286.19

**Stand-by Commitments:** $2763128.39

**Currency Risk Metrics (dv01):**

- 

**Credit Spread Risk - Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** -36.00000000 | **5-Year:** -1286.00000000 | **10-Year:** -85.00000000 | **30-Year:** 0.00000000

**Credit Spread Risk - Non-Investment Grade (dv01):**

- **3-Month:** -37.00000000 | **1-Year:** -508.00000000 | **5-Year:** -7314.00000000 | **10-Year:** -731.00000000 | **30-Year:** -1504.00000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000228471 | 0.68%                | -0.50%               | 2.73%                |
| Class ID C000228470 | 0.81%                | -0.48%               | 2.64%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-15498.31               | $55688.47                                  |
| Month 2  | $-11892.28               | $-224741.81                                |
| Month 3  | $7146.66                 | $517551.61                                 |

**Designated Index Information**

- **Index Name:** Bloomberg Barclays US High Yield

- **Index Identifier:** N/A

### Schedule of Portfolio Investments

| Name                                        | Title                                                   | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Progress Residential Trust                  | Progress Residential 2021-SFR9 Trust                    | CUSIP: 74333QAN5<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    100000 | PA      | $82766.18     | 0.31%             | 2040-11-17      | Fixed         | 4.05%                 | No            |                  2 | On Loan: No      |
| Home Re Ltd                                 | Home RE 2020-1 Ltd                                      | CUSIP: 43731WAE5<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | BM        |    300000 | PA      | $305474.40    | 1.13%             | 2030-10-25      | Floating      | 11.51%                | No            |                  2 | On Loan: No      |
| AIG CLO Ltd                                 | AIG CLO 2020-1 LLC                                      | CUSIP: 00140WBC3<br>LEI: N/A                  | Long             | ABS-CBDO         | CORP              | KY        |    250000 | PA      | $222962.00    | 0.82%             | 2034-04-15      | Floating      | 11.09%                | No            |                  2 | On Loan: No      |
| UNITED AIR 2020-1 B PTT                     | United Airlines 2020-1 Class B Pass Through Trust       | CUSIP: 90932VAA3<br>LEI: N/A                  | Long             | DBT              | CORP              | US        |     56433 | PA      | $54990.60     | 0.20%             | 2026-01-15      | Fixed         | 4.88%                 | No            |                  2 | On Loan: No      |
| MULTIFAMILY CONNECTICUT AVENUE              | Multifamily Connecticut Avenue Securities Trust 2020-01 | CUSIP: 62548QAD3<br>LEI: 5493002KQF9IH3CTQZ40 | Long             | ABS-MBS          | CORP              | US        |    500000 | PA      | $471871.95    | 1.75%             | 2050-03-25      | Floating      | 8.26%                 | No            |                  2 | On Loan: No      |
| Oportun Funding LLC                         | Oportun Funding XIV LLC                                 | CUSIP: 68377BAC1<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    400000 | PA      | $371655.76    | 1.37%             | 2028-03-08      | Fixed         | 3.44%                 | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | Freddie Mac STACR Trust 2019-FTR3                       | CUSIP: 35565EAE2<br>LEI: 5493009ZFZYH4FRCW638 | Long             | ABS-MBS          | CORP              | US        |    400000 | PA      | $337257.68    | 1.25%             | 2047-09-25      | Floating      | 9.19%                 | No            |                  2 | On Loan: No      |
| JPMorgan Chase Bank, NA - CACL              | JPMorgan Chase Bank NA - CACLN                          | CUSIP: 48128U2R9<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    600000 | PA      | $539589.72    | 2.00%             | 2028-12-26      | Fixed         | 4.39%                 | No            |                  2 | On Loan: No      |
| FARM 2021-1 Mortgage Trust                  | FARM 21-1 Mortgage Trust                                | CUSIP: 30768WAC2<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |     88096 | PA      | $60645.27     | 0.22%             | 2051-07-25      | Variable      | 3.24%                 | No            |                  2 | On Loan: No      |
| Arivo Acceptance Auto Loan Rec              | Arivo Acceptance Auto Loan Receivables Trust 2022-1     | CUSIP: 04047EAD8<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    400000 | PA      | $376361.72    | 1.39%             | 2029-09-17      | Fixed         | 7.38%                 | No            |                  2 | On Loan: No      |
| HOA Funding LLC                             | HOA Funding LLC - HOA                                   | CUSIP: 40390GAB4<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    200000 | PA      | $159016.20    | 0.59%             | 2051-08-20      | Fixed         | 7.43%                 | No            |                  2 | On Loan: No      |
| Natixis Commercial Mortgage Se              | Natixis Commercial Mortgage Securities Trust 2019-FAME  | CUSIP: 63873VAN3<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    500000 | PA      | $395129.50    | 1.46%             | 2036-08-15      | Variable      | 4.40%                 | No            |                  2 | On Loan: No      |
| Home Re Ltd                                 | Home RE 2022-1 Ltd                                      | CUSIP: 43730GAE1<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    175000 | PA      | $169594.85    | 0.63%             | 2034-10-25      | Floating      | 13.31%                | No            |                  2 | On Loan: No      |
| Pawnee Equipment Receivables                | Pawneee Equipment Receivables Series 2021-1 LLC         | CUSIP: 704100AF3<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    400000 | PA      | $359476.44    | 1.33%             | 2028-05-15      | Fixed         | 5.21%                 | No            |                  2 | On Loan: No      |
| Velocity Commercial Capital Lo              | Velocity Commercial Capital Loan Trust 2020-1           | CUSIP: 92259LAR9<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    380963 | PA      | $297045.52    | 1.10%             | 2050-02-25      | Variable      | 4.29%                 | No            |                  2 | On Loan: No      |
| Eagle Re Ltd                                | Eagle RE 2021-2 Ltd                                     | CUSIP: 26982AAG9<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | BM        |    290000 | PA      | $283485.70    | 1.05%             | 2034-04-25      | Floating      | 8.56%                 | No            |                  2 | On Loan: No      |
| Genworth Mortgage Insurance Co              | Triangle Re 2021-3 Ltd                                  | CUSIP: 89600HAE9<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | BM        |    200000 | PA      | $184244.72    | 0.68%             | 2034-02-25      | Floating      | 8.06%                 | No            |                  2 | On Loan: No      |
| BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | CBOT 10 Year US Treasury Note                           | CUSIP: 000000000<br>LEI: 549300EX04Q2QBFQTQ27 | N/A              | DIR              | CORP              | US        |        45 | NC      | $-18228.85    | -0.07%            |  |  |  | No            |                  1 | On Loan: No      |
| Cascade Funding Mortgage Trust              | Cascade Funding Mortgage Trust 2018-RM2                 | CUSIP: 14727QAD7<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    589016 | PA      | $553792.67    | 2.05%             | 2068-10-25      | Variable      | 4.00%                 | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | Freddie Mac STACR REMIC Trust 2020-DNA3                 | CUSIP: 35565WBE1<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    150000 | PA      | $168778.49    | 0.62%             | 2050-06-25      | Floating      | 13.86%                | No            |                  2 | On Loan: No      |
| Radnor Re LTD                               | Radnor RE 2020-1 Ltd                                    | CUSIP: 750493AF5<br>LEI: 254900YVLP8CB4GC2O97 | Long             | ABS-MBS          | CORP              | BM        |    500000 | PA      | $455513.80    | 1.68%             | 2030-01-25      | Floating      | 7.51%                 | No            |                  2 | On Loan: No      |
| Gracie Point International Fun              | GRACIE POINT INTERNATIONAL FUNDING 2022-1               | CUSIP: 38411HAE5<br>LEI: N/A                  | Long             | ABS-O            | CORP              | KY        |    400000 | PA      | $397917.52    | 1.47%             | 2024-04-01      | Floating      | 9.80%                 | No            |                  2 | On Loan: No      |
| Multifamily Structured Credit               | Freddie Mac Multifamily Structured Credit Risk          | CUSIP: 35563GAB5<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    250000 | PA      | $224009.68    | 0.83%             | 2051-11-25      | Floating      | 8.31%                 | No            |                  2 | On Loan: No      |
| Tricon American Homes                       | Tricon American Homes 2017-SFR2 Trust                   | CUSIP: 89613FAF5<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    350000 | PA      | $340291.46    | 1.26%             | 2036-01-17      | Fixed         | 5.10%                 | No            |                  2 | On Loan: No      |
| Cascade Funding Mortgage Trust              | CFMT 2020-HB4 LLC                                       | CUSIP: 12529LAF7<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    480000 | PA      | $447419.86    | 1.65%             | 2030-12-26      | Variable      | 6.00%                 | No            |                  2 | On Loan: No      |
| First Investors Auto Owner Tru              | First Investors Auto Owner Trust 2021-1                 | CUSIP: 32059FAL3<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    500000 | PA      | $450268.80    | 1.67%             | 2028-04-17      | Fixed         | 5.37%                 | No            |                  2 | On Loan: No      |
| Exeter Automobile Receivables               | Exeter Automobile Receivables Trust 2022-2              | CUSIP: 30166QAF6<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    250000 | PA      | $239741.25    | 0.89%             | 2028-07-17      | Fixed         | 4.56%                 | No            |                  2 | On Loan: No      |
| Hundred Acre Wood Trust                     | Hundred Acre Wood Trust 2021-INV1                       | CUSIP: 44590HBJ4<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |   4261899 | PA      | $43041.35     | 0.16%             | 2051-07-25      | Variable      | 0.23%                 | No            |                  2 | On Loan: No      |
| Fannie Mae - CAS                            | Fannie Mae Connecticut Avenue Securities                | CUSIP: 20754KAJ0<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | CORP              | US        |    100000 | PA      | $86948.79     | 0.32%             | 2041-11-25      | Floating      | 10.51%                | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | Freddie Mac STACR Trust 2019-FTR2                       | CUSIP: 35564WBD4<br>LEI: 5493008J93RJW7PJFN93 | Long             | ABS-MBS          | CORP              | US        |    500000 | PA      | $464971.55    | 1.72%             | 2048-11-25      | Floating      | 7.51%                 | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | Freddie Mac STACR REMIC Trust 2022-DNA2                 | CUSIP: 35564KSJ9<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    280000 | PA      | $272314.78    | 1.01%             | 2042-02-25      | Floating      | 9.06%                 | No            |                  2 | On Loan: No      |
| Ocean Trails CLO IX                         | Ocean Trails CLO IX                                     | CUSIP: 67515YAE2<br>LEI: 549300LD2JF1INLMST94 | Long             | ABS-CBDO         | CORP              | KY        |    250000 | PA      | $223562.50    | 0.83%             | 2034-10-15      | Floating      | 12.24%                | No            |                  2 | On Loan: No      |
| MF1 Multifamily Housing Mortga              | MF1 Multifamily Housing Mortgage Loan Trust             | CUSIP: 55282XAJ9<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | KY        |    250000 | PA      | $234656.45    | 0.87%             | 2036-07-15      | Floating      | 7.10%                 | No            |                  2 | On Loan: No      |
| GS Mortgage-Backed Securities               | GS Mortgage-Backed Securities Trust 2020-NQM1           | CUSIP: 36259WAE1<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    200000 | PA      | $169116.64    | 0.63%             | 2060-09-27      | Variable      | 5.14%                 | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | Freddie Mac STACR Trust 2019-DNA3                       | CUSIP: 35564TBE9<br>LEI: 549300KB1O80CETXGJ21 | Long             | ABS-MBS          | CORP              | US        |    434000 | PA      | $449263.61    | 1.66%             | 2049-07-25      | Floating      | 12.66%                | No            |                  2 | On Loan: No      |
| Conn Funding II, L.P                        | Conn's Receivables Funding 2021-A LLC                   | CUSIP: 20825GAB1<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    536965 | PA      | $531282.46    | 1.97%             | 2026-05-15      | Fixed         | 2.87%                 | No            |                  2 | On Loan: No      |
| Genworth Mortgage Insurance Co              | Traingle Re 2020-1 Ltd                                  | CUSIP: 89600MAE8<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | BM        |    150000 | PA      | $152933.76    | 0.57%             | 2030-10-25      | Floating      | 12.26%                | No            |                  2 | On Loan: No      |
| Foursight Capital Automobile R              | Foursight Capital Automobile Receivables Trust 2020-1   | CUSIP: 35105FAH9<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    600000 | PA      | $588390.36    | 2.18%             | 2027-06-15      | Fixed         | 4.62%                 | No            |                  2 | On Loan: No      |
| Continental Credit Card llc                 | Continental Credit Card ABS 2019-1 LLC                  | CUSIP: 21134LAC2<br>LEI: 5493002QR2K2E0R56Z02 | Long             | ABS-O            | CORP              | US        |    600000 | PA      | $580230.72    | 2.15%             | 2026-08-15      | Fixed         | 6.16%                 | No            |                  2 | On Loan: No      |
| Diamond Resorts Owner Trust                 | Diamond Resorts Owner Trust 2019-1                      | CUSIP: 252722AD5<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |     80363 | PA      | $78049.66     | 0.29%             | 2032-02-20      | Fixed         | 5.25%                 | No            |                  2 | On Loan: No      |
| COMM Mortgage Trust                         | COMM 2020-CBM Mortgage Trust                            | CUSIP: 20049AAJ7<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    500000 | PA      | $429246.60    | 1.59%             | 2037-02-10      | Variable      | 3.63%                 | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | STACR Trust 2018-HRP2                                   | CUSIP: 35564ACC3<br>LEI: 549300YG8OJES76WL398 | Long             | ABS-MBS          | CORP              | US        |    500000 | PA      | $533004.35    | 1.97%             | 2047-02-25      | Floating      | 15.01%                | No            |                  2 | On Loan: No      |
| BRITISH AIR 20-1 B PTT                      | British Airways 2020-1 Class B Pass Through Trust       | CUSIP: 11042WAA4<br>LEI: N/A                  | Long             | DBT              | CORP              | US        |     84320 | PA      | $83935.55     | 0.31%             | 2028-11-15      | Fixed         | 8.38%                 | No            |                  2 | On Loan: No      |
| Fannie Mae - CAS                            | Connecticut Avenue Securities Trust 2021-R01            | CUSIP: 20754RAJ5<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    250000 | PA      | $232386.95    | 0.86%             | 2041-10-25      | Floating      | 10.31%                | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | Freddie Mac Stacr Trust 2018-HQA2                       | CUSIP: 35563XBE1<br>LEI: 5493005RUXPCBST1N217 | Long             | ABS-MBS          | CORP              | US        |    500000 | PA      | $560547.75    | 2.07%             | 2048-10-25      | Floating      | 15.51%                | No            |                  2 | On Loan: No      |
| Fannie Mae or Freddie Mac                   | Fannie Mae or Freddie Mac                               | CUSIP: 01F042632<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    500000 | PA      | $493632.81    | 1.83%             | 2053-03-15      | Fixed         | 4.50%                 | No            |                  2 | On Loan: No      |
| Oaktown Re Ltd                              | Oaktown Re VII Ltd                                      | CUSIP: 67389JAE8<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | BM        |    150000 | PA      | $129552.41    | 0.48%             | 2034-04-25      | Floating      | 8.71%                 | No            |                  2 | On Loan: No      |
| Avid Automobile Receivables Tr              | Avid Automobile Receivables Trust 2021-1                | CUSIP: 05369LAF4<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    350000 | PA      | $314861.75    | 1.16%             | 2028-10-16      | Fixed         | 5.16%                 | No            |                  2 | On Loan: No      |
| Santander Bank Auto Credit-Lin              | Santander Bank Auto Credit-Linked Notes Series 2022-A   | CUSIP: 80290CAV6<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    650000 | PA      | $627741.86    | 2.32%             | 2032-05-15      | Fixed         | 12.66%                | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | Freddie Mac STACR REMIC Trust 2020-HQA4                 | CUSIP: 35565RBE2<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    220000 | PA      | $241317.01    | 0.89%             | 2050-09-25      | Floating      | 13.91%                | No            |                  2 | On Loan: No      |
| Natixis Commercial Mortgage Se              | Natixis Commercial Mortgage Securities Trust 2019-MILE  | CUSIP: 63875FAL0<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    500000 | PA      | $451491.05    | 1.67%             | 2036-07-15      | Floating      | 8.06%                 | No            |                  2 | On Loan: No      |
| Flagstar Mortgage Trust                     | Flagstar Mortgage Trust 2021-4                          | CUSIP: 33852FBA3<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |   6451518 | PA      | $61787.48     | 0.23%             | 2051-06-01      | Variable      | 0.21%                 | No            |                  2 | On Loan: No      |
| Progress Residential Trust                  | Progress Residential 2021-SFR8 Trust                    | CUSIP: 74333TAQ2<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    200000 | PA      | $171608.48    | 0.63%             | 2038-10-17      | Fixed         | 4.00%                 | No            |                  2 | On Loan: No      |
| Continental Credit Card llc                 | Continental Finance Credit Card ABS Master Trust        | CUSIP: 66981PAK4<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    200000 | PA      | $199433.20    | 0.74%             | 2030-10-15      | Fixed         | 9.33%                 | No            |                  2 | On Loan: No      |
| Blackbird Capital Aircraft                  | Blackbird Capital Aircraft                              | CUSIP: 09229CAB5<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    281575 | PA      | $217106.00    | 0.80%             | 2046-07-15      | Fixed         | 3.45%                 | No            |                  2 | On Loan: No      |
| Crossroads Asset Trust                      | Crossroads Asset Trust 2021-A                           | CUSIP: 22767CAF7<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    400000 | PA      | $379293.96    | 1.40%             | 2028-01-20      | Fixed         | 5.48%                 | No            |                  2 | On Loan: No      |
| BELLEMEADE RE LT                            | Bellemeade RE 2021-3 Ltd                                | CUSIP: 078777AF6<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    206000 | PA      | $182340.78    | 0.67%             | 2031-09-25      | Floating      | 8.16%                 | No            |                  2 | On Loan: No      |
| Arivo Acceptance Auto Loan Rec              | Arivo Acceptance Auto Loan Receivables Trust 2021-1     | CUSIP: 04047AAG9<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    550000 | PA      | $505249.09    | 1.87%             | 2028-01-18      | Fixed         | 5.83%                 | No            |                  2 | On Loan: No      |
| Octane Receivables Trust                    | Octane Receivables Trust 2022-2                         | CUSIP: 67578XAD0<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    270000 | PA      | $271652.13    | 1.00%             | 2030-02-20      | Fixed         | 7.70%                 | No            |                  2 | On Loan: No      |
| Fannie Mae or Freddie Mac                   | Fannie Mae or Freddie Mac                               | CUSIP: 01F060626<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |   1000000 | PA      | $1026914.06   | 3.80%             | 2053-02-15      | Fixed         | 6.00%                 | No            |                  2 | On Loan: No      |
| JP Morgan Mortgage Trust                    | JP Morgan Mortgage Trust 2021-10                        | CUSIP: 46654ABS7<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |   8406732 | PA      | $50569.02     | 0.19%             | 2051-12-25      | Variable      | 0.12%                 | No            |                  2 | On Loan: No      |
| Westlake Automobile Receivable              | Westlake Automobile Receivables Trust 2023-1            | CUSIP: 96042XAG0<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    330000 | PA      | $334037.52    | 1.24%             | 2028-11-15      | Fixed         | 6.79%                 | No            |                  2 | On Loan: No      |
| Imperial Fund LLC                           | Imperial Fund Mortgage Trust 2021-NQM2                  | CUSIP: 452761AF6<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    205000 | PA      | $129522.81    | 0.48%             | 2056-09-25      | Variable      | 4.31%                 | No            |                  2 | On Loan: No      |
| ReadyCap Commercial Mortgage T              | Ready Capital Mortgage Financing 2021-FL6 LLC           | CUSIP: 75575TAC7<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    260000 | PA      | $249630.94    | 0.92%             | 2036-07-25      | Floating      | 5.71%                 | No            |                  2 | On Loan: No      |
| AMSR Trust                                  | AMSR 2022-SFR3 Trust                                    | CUSIP: 66981YAF6<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    120000 | PA      | $100629.80    | 0.37%             | 2039-10-17      | Fixed         | 4.00%                 | No            |                  2 | On Loan: No      |
| Westlake Automobile Receivable              | Westlake Automobile Receivables Trust 2022-2            | CUSIP: 96042VAF6<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    150000 | PA      | $146702.43    | 0.54%             | 2027-09-15      | Fixed         | 4.85%                 | No            |                  2 | On Loan: No      |
| Arivo Acceptance Auto Loan Rec              | Arivo Acceptance Auto Loan Receivables Trust 2022-2     | CUSIP: 04047JAC9<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    200000 | PA      | $210016.16    | 0.78%             | 2029-03-15      | Fixed         | 9.84%                 | No            |                  2 | On Loan: No      |
| Oasis Securitisation                        | Libra Solutions 2022-2 LLC                              | CUSIP: 53161MAB1<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    215644 | PA      | $211869.85    | 0.78%             | 2034-10-15      | Fixed         | 8.85%                 | No            |                  2 | On Loan: No      |
| Conn Funding II, L.P                        | Conn's Receivables Funding 2021-A LLC                   | CUSIP: 20825GAC9<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    250000 | PA      | $240480.50    | 0.89%             | 2026-05-15      | Fixed         | 4.59%                 | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | STACR Trust 2018-HRP2                                   | CUSIP: 35564ACB5<br>LEI: 549300YG8OJES76WL398 | Long             | ABS-MBS          | CORP              | US        |    500000 | PA      | $516806.05    | 1.91%             | 2047-02-25      | Floating      | 8.71%                 | No            |                  2 | On Loan: No      |
| JP Morgan Mortgage Trust                    | JP Morgan Mortgage Trust 2021-8                         | CUSIP: 46592TBS1<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |   7161123 | PA      | $43075.58     | 0.16%             | 2051-12-25      | Variable      | 0.12%                 | No            |                  2 | On Loan: No      |
| Madison Park Funding Ltd                    | Madison Park Funding XLV Ltd                            | CUSIP: 55820DAE3<br>LEI: N/A                  | Long             | ABS-CBDO         | CORP              | KY        |    250000 | PA      | $220747.25    | 0.82%             | 2034-07-15      | Floating      | 11.14%                | No            |                  2 | On Loan: No      |
| Exeter Automobile Receivables               | Exeter Automobile Receivables Trust 2022-5              | CUSIP: 30167FAF9<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    200000 | PA      | $205865.58    | 0.76%             | 2029-02-15      | Fixed         | 7.40%                 | No            |                  2 | On Loan: No      |
| Freddie Mac - STACR                         | Freddie Mac STACR REMIC Trust 2022-DNA1                 | CUSIP: 35564KQZ5<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    280000 | PA      | $240861.40    | 0.89%             | 2042-01-25      | Floating      | 11.41%                | No            |                  2 | On Loan: No      |
| Genworth Mortgage Insurance Co              | Triangle Re 2021-3 Ltd                                  | CUSIP: 89600HAG4<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | BM        |    150000 | PA      | $121588.55    | 0.45%             | 2034-02-25      | Floating      | 9.26%                 | No            |                  2 | On Loan: No      |
| Tricolor Auto Securitization T              | Tricolor Auto Securitization Trust 2021-1               | CUSIP: 89615BAF2<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    500000 | PA      | $470007.35    | 1.74%             | 2028-05-15      | Fixed         | 5.08%                 | No            |                  2 | On Loan: No      |
| NMEF Funding LLC                            | NMEF Funding 2022-B LLC                                 | CUSIP: 62890MAD6<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    210000 | PA      | $214797.77    | 0.79%             | 2029-06-15      | Fixed         | 8.54%                 | No            |                  2 | On Loan: No      |
| ACREC 2021-FL1 Ltd.                         | ACREC 2021-FL1 Ltd                                      | CUSIP: 00500RAJ4<br>LEI: N/A                  | Long             | ABS-CBDO         | CORP              | KY        |    380000 | PA      | $358381.19    | 1.33%             | 2036-10-16      | Floating      | 7.12%                 | No            |                  2 | On Loan: No      |
| Multifamily Structured Credit               | Freddie Mac Multifamily Structured Credit Risk          | CUSIP: 35563GAC3<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    250000 | PA      | $219972.65    | 0.81%             | 2051-11-25      | Floating      | 11.16%                | No            |                  2 | On Loan: No      |
| Home Re Ltd                                 | Home RE 2021-2 Ltd                                      | CUSIP: 43730VAE8<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | BM        |    500000 | PA      | $458351.55    | 1.70%             | 2034-01-25      | Floating      | 8.46%                 | No            |                  2 | On Loan: No      |
| RMF Buyout Issuance Trust                   | RMF Buyout Issuance Trust 2022-HB1                      | CUSIP: 76970HAF5<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    450000 | PA      | $50062.50     | 0.19%             | 2032-04-25      | Variable      | 4.50%                 | No            |                  2 | On Loan: No      |
| ICG US CLO Ltd                              | ICG US CLO 2016-1 Ltd                                   | CUSIP: 44931KAJ6<br>LEI: 635400A7LQADQPBLJB50 | Long             | ABS-CBDO         | CORP              | KY        |    300000 | PA      | $254247.60    | 0.94%             | 2034-04-29      | Floating      | 12.24%                | No            |                  2 | On Loan: No      |
| Tricolor Auto Securitization T              | Tricolor Auto Securitization Trust 2022-1               | CUSIP: 89616BAF1<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    500000 | PA      | $481888.30    | 1.78%             | 2029-07-16      | Fixed         | 9.80%                 | No            |                  2 | On Loan: No      |
| Santander Bank Auto Credit-Lin              | Santander Bank NA - SBCLN                               | CUSIP: 80290CAL8<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    700000 | PA      | $601582.24    | 2.23%             | 2031-12-15      | Fixed         | 6.17%                 | No            |                  2 | On Loan: No      |
| Fannie Mae or Freddie Mac                   | Fannie Mae or Freddie Mac                               | CUSIP: 01F052623<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    500000 | PA      | $508085.94    | 1.88%             | 2053-02-15      | Fixed         | 5.50%                 | No            |                  2 | On Loan: No      |
| Fannie Mae or Freddie Mac                   | Fannie Mae or Freddie Mac                               | CUSIP: 01F042624<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    300000 | PA      | $296250.00    | 1.10%             | 2053-02-15      | Fixed         | 4.50%                 | No            |                  2 | On Loan: No      |
| Dreyfus Government Cash Management          | Dreyfus Government Cash Management                      | CUSIP: 262006208<br>LEI: 5493000Q69I5Q3QZIA91 | Long             | STIV             | RF                | US        |   3104149 | NS      | $3104149.12   | 11.48%            |  |  |  | No            |                  1 | On Loan: No      |
| Fannie Mae - CAS                            | Connecticut Avenue Securities Trust 2022-R01            | CUSIP: 20754LAJ8<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    190000 | PA      | $171056.53    | 0.63%             | 2041-12-25      | Floating      | 10.31%                | No            |                  2 | On Loan: No      |
| Multifamily Structured Credit               | Freddie Mac Multifamily Structured Credit Risk          | CUSIP: 35563FAC5<br>LEI: N/A                  | Long             | ABS-MBS          | USGSE             | US        |    250000 | PA      | $236429.58    | 0.87%             | 2051-01-25      | Floating      | 12.06%                | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2023-03-22

**Name of Applicant:** Pioneer Series Trust IV

**Signature:** Anthony J. Koenig, Jr

**Name of Signer:** Anthony J. Koenig, Jr

**Title:** Managing Director, Chief Operations Officer & Treasurer of the Funds