# EDGAR Filing Document

**Accession Number:** 0000225322
**File Stem:** 0001752724-23-014695
**Filing Date:** 2023-1
**Character Count:** 13437
**Document Hash:** 16be22975359c732fae633f487cdf31d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-014695.hdr.sgml**: 20230126

**ACCESSION NUMBER**: 0001752724-23-014695

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221130

**FILED AS OF DATE**: 20230126

**DATE AS OF CHANGE**: 20230126

**PERIOD START**: 20230531

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIDELITY SUMMER STREET TRUST
- **CENTRAL INDEX KEY:** 0000225322
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02737
- **FILM NUMBER:** 23556550

**BUSINESS ADDRESS:**
- **STREET 1:** 245 SUMMER STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210
- **BUSINESS PHONE:** 617-563-7000

**MAIL ADDRESS:**
- **STREET 1:** 245 SUMMER STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY HIGH INCOME FUND
- **DATE OF NAME CHANGE:** 19890309

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY AGGRESSIVE INCOME FUND
- **DATE OF NAME CHANGE:** 19810205

## Series and Classes Contracts Data

### Fidelity Water Sustainability Fund (Series ID: S000067937)

| Class ID   | Class Name                         | Ticker Symbol   |
|:---|:---|:---|
| C000217779 | Fidelity Water Sustainability Fund | FLOWX           |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** Fidelity Summer Street Trust

- **b. Investment Company Act file number:** 811-02737

- **c. CIK number of Registrant:** 0000225322

- **d. LEI of Registrant:** P1TJ3M056NR1SYX5LY49

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

  - **Street Address 1:** 245 Summer Street

  - **City:** Boston

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 02210

  - **Telephone number:** 1-800-FIDELITY

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

- **a. Name of Series:** Fidelity Water Sustainability Fund

- **b. EDGAR series identifier (if any):** S000067937

- **c. LEI of Series:** 5493007YQ3QVFGFYJX14

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

- **a. Date of fiscal year-end:** 2023-05-31

- **b. Date as of which information is reported:** 2022-11-30

**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:** $90239945.24

**Total Liabilities:** $101941.56

**Net Assets:** $90138003.68

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000217779 | -9.13%               | 11.72%               | 5.99%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $282713.28               | $-8704650.43                               |
| Month 2  | $-2016081.53             | $11060635.82                               |
| Month 3  | $-1584353.71             | $6661280.41                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| MUELLER WTR PRODS INC                                                                 | MUELLER WATER PRODUCTS INC A    | CUSIP: 624758108<br>LEI: 549300F7ZU4P1F8V8L60 | Long             | EC               | CORP              | US        |     47475 | NS      | $553558.50    | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| IDEX CORPORATION                                                                      | IDEX CORPORATION                | CUSIP: 45167R104<br>LEI: 549300U5Y5EL6PHYLF13 | Long             | EC               | CORP              | US        |     18758 | NS      | $4454837.42   | 4.94%             |  |  |  | No            |                  1 | On Loan: No      |
| ORGANO CORPORATION                                                                    | ORGANO CORPORATION              | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | JP        |      8888 | NS      | $184384.25    | 0.20%             |  |  |  | No            |                  2 | On Loan: No      |
| XYLEM INC                                                                             | XYLEM INC                       | CUSIP: 98419M100<br>LEI: 549300DF5MV96DRYLQ48 | Long             | EC               | CORP              | US        |     61215 | NS      | $6877505.25   | 7.63%             |  |  |  | No            |                  1 | On Loan: No      |
| WATTS WATER TECHNOLOGIES INC                                                          | WATTS WATER TECH INC CL A       | CUSIP: 942749102<br>LEI: 549300REJOO94ERQN318 | Long             | EC               | CORP              | US        |     10905 | NS      | $1727897.25   | 1.92%             |  |  |  | No            |                  1 | On Loan: No      |
| ENERGY RECOVERY INC                                                                   | ENERGY RECOVERY INC             | CUSIP: 29270J100<br>LEI: 549300ZEQL52Z525WJ22 | Long             | EC               | CORP              | US        |      4805 | NS      | $111379.90    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| FISCHER (GEORG) AG                                                                    | FISCHER (GEORG) AG (REG)        | CUSIP: N/A<br>LEI: 529900CMRQYW4U1W2456       | Long             | EC               | CORP              | CH        |     26857 | NS      | $1638286.55   | 1.82%             |  |  |  | No            |                  2 | On Loan: No      |
| INGERSOLL RAND INC                                                                    | INGERSOLL RAND INC              | CUSIP: 45687V106<br>LEI: 5299004C02FMZCUOIR50 | Long             | EC               | CORP              | US        |     76526 | NS      | $4130108.22   | 4.58%             |  |  |  | No            |                  1 | On Loan: No      |
| AMERICAN WATER WORKS CO INC                                                           | AMERICAN WATER WRKS COMPANY     | CUSIP: 030420103<br>LEI: 549300DXHIJQMD5WFW18 | Long             | EC               | CORP              | US        |     56664 | NS      | $8599328.64   | 9.54%             |  |  |  | No            |                  1 | On Loan: No      |
| CRANE HOLDINGS CO                                                                     | CRANE HOLDINGS CO               | CUSIP: 224441105<br>LEI: 549300EXNPSXEWUD3N21 | Long             | EC               | CORP              | US        |     15458 | NS      | $1637620.52   | 1.82%             |  |  |  | No            |                  1 | On Loan: No      |
| ROPER TECHNOLOGIES INC                                                                | ROPER TECHNOLOGIES INC          | CUSIP: 776696106<br>LEI: 549300LJXD867XMVE759 | Long             | EC               | CORP              | US        |     29397 | NS      | $12902049.33  | 14.31%            |  |  |  | No            |                  1 | On Loan: No      |
| SANEAMENTO BASICO DE SP (CIA) (COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO) | SABESP(CIA SANEAM BASIC)SP ADR  | CUSIP: 20441A102<br>LEI: 254900UOXRZRS2TNWP19 | Long             | EC               | CORP              | BR        |     52301 | NS      | $604076.55    | 0.67%             |  |  |  | No            |                  1 | On Loan: No      |
| BADGER METER INC                                                                      | BADGER METER INC                | CUSIP: 056525108<br>LEI: 5493002JENE20OGTUG20 | Long             | EC               | CORP              | US        |     16388 | NS      | $1898058.16   | 2.11%             |  |  |  | No            |                  1 | On Loan: No      |
| AMERICAN STATES WATER CO                                                              | AMERICAN STATES WATER CO        | CUSIP: 029899101<br>LEI: 529900L26LIS2V8PWM23 | Long             | EC               | CORP              | US        |     38405 | NS      | $3763305.95   | 4.18%             |  |  |  | No            |                  1 | On Loan: No      |
| SEVERN TRENT PLC                                                                      | SEVERN TRENT PLC                | CUSIP: N/A<br>LEI: 213800RPBXRETY4A4C59       | Long             | EC               | CORP              | GB        |    131214 | NS      | $4318547.05   | 4.79%             |  |  |  | No            |                  2 | On Loan: No      |
| YORK WATER CO                                                                         | YORK WATER CO                   | CUSIP: 987184108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      1914 | NS      | $87450.66     | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Fidelity Revere Street Trust                                                          | Fidelity Cash Central Fund      | CUSIP: 31635A105<br>LEI: 549300BDV45LJNXBZC55 | Long             | STIV             | RF                | US        |    470004 | NS      | $470098.17    | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| TELEDYNE TECHNOLOGIES INC                                                             | TELEDYNE TECHNOLOGIES INC       | CUSIP: 879360105<br>LEI: 549300VSMO9KYQWDND94 | Long             | EC               | CORP              | US        |     20093 | NS      | $8441069.30   | 9.36%             |  |  |  | No            |                  1 | On Loan: No      |
| DANAHER CORP                                                                          | DANAHER CORP                    | CUSIP: 235851102<br>LEI: S4BKK9OTCEWQ3YHPFM11 | Long             | EC               | CORP              | US        |     16129 | NS      | $4409829.89   | 4.89%             |  |  |  | No            |                  1 | On Loan: No      |
| TETRA TECH INC NEW                                                                    | TETRA TECH INC                  | CUSIP: 88162G103<br>LEI: 549300UJ1LP7JGJC5P32 | Long             | EC               | CORP              | US        |     50812 | NS      | $7855027.08   | 8.71%             |  |  |  | No            |                  1 | On Loan: No      |
| ADVANCED DRAIN SYS INC DEL                                                            | ADVANCED DRAINAGE SYSTEMS INC   | CUSIP: 00790R104<br>LEI: 6QQTOZ5MF5DHM7K92I60 | Long             | EC               | CORP              | US        |     33829 | NS      | $3290208.54   | 3.65%             |  |  |  | No            |                  1 | On Loan: No      |
| ESSENTIAL UTILITIES INC                                                               | ESSENTIAL UTILITIES INC         | CUSIP: 29670G102<br>LEI: 549300ILTEOF3E3QY357 | Long             | EC               | CORP              | US        |     22772 | NS      | $1098521.28   | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| EVOQUA WATER TECHNOLOGIES CO                                                          | EVOQUA WATER TECHNOLOGIES CO    | CUSIP: 30057T105<br>LEI: 529900YQAOMEZRGRRP43 | Long             | EC               | CORP              | US        |     98147 | NS      | $4268413.03   | 4.74%             |  |  |  | No            |                  1 | On Loan: No      |
| SELECT ENERGY SERVICES INC                                                            | SELECT ENERGY SERVICES INC CL A | CUSIP: 81617J301<br>LEI: 54930094OK8LA3QDW486 | Long             | EC               | CORP              | US        |     43693 | NS      | $357845.67    | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| VEOLIA ENVIRONNEMENT SA                                                               | VEOLIA ENVIRONNEMENT            | CUSIP: N/A<br>LEI: 969500LENY69X51OOT31       | Long             | EC               | CORP              | FR        |    133837 | NS      | $3463951.52   | 3.84%             |  |  |  | No            |                  2 | On Loan: No      |
| MIDDLESEX WATER CO                                                                    | MIDDLESEX WATER CO              | CUSIP: 596680108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     26910 | NS      | $2514739.50   | 2.79%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2022-12-30

**Name of Applicant:** Stacie M. Smith

**Signature:** Stacie M. Smith

**Name of Signer:** Stacie M. Smith

**Title:** President and Treasurer