# EDGAR Filing Document

**Accession Number:** 0000225322
**File Stem:** 0001752724-23-014598
**Filing Date:** 2023-1
**Character Count:** 14441
**Document Hash:** 853ede8be49450b90a622026c5b65459
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-014598.hdr.sgml**: 20230126

**ACCESSION NUMBER**: 0001752724-23-014598

**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:** 23556432

**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 Disruptive Communications Fund (Series ID: S000067932)

| Class ID   | Class Name                              | Ticker Symbol   |
|:---|:---|:---|
| C000217774 | Fidelity Disruptive Communications Fund | FNETX           |
| C000219000 | Loyalty Class 1                         | FONLX           |
| C000219001 | Loyalty Class 2                         | FONMX           |
| C000219002 | Class F                                 | FONNX           |

## 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 Disruptive Communications Fund

- **b. EDGAR series identifier (if any):** S000067932

- **c. LEI of Series:** 5493002Y5P3H7HHCPI62

**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:** $35766032.29

**Total Liabilities:** $10894.40

**Net Assets:** $35755137.89

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000217774 | -10.66%              | 3.03%                | 5.69%                |
| Class ID C000219001 | -10.61%              | 3.02%                | 5.76%                |
| Class ID C000219002 | -10.57%              | 3.11%                | 5.73%                |
| Class ID C000219000 | -10.60%              | 3.04%                | 5.70%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-403470.14              | $-4134113.02                               |
| Month 2  | $-1917390.15             | $2759235.71                                |
| Month 3  | $-390349.81              | $2359206.36                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| CLOUDFLARE INC            | CLOUDFLARE INC                 | CUSIP: 18915M107<br>LEI: 5493007DY18BGNLDWU14 | Long             | EC               | CORP              | US        |      3426 | NS      | $168353.64    | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| ACTIVISION BLIZZARD INC   | ACTIVISION BLIZZARD INC        | CUSIP: 00507V109<br>LEI: 549300TPQQDBP9GNOF40 | Long             | EC               | CORP              | US        |     32041 | NS      | $2369431.95   | 6.63%             |  |  |  | No            |                  1 | On Loan: No      |
| LIBERTY LATIN AMERICA LTD | LIBERTY LATIN AMERICA LTD CL C | CUSIP: N/A<br>LEI: 213800YWQHEAX7CAVO83       | Long             | EC               | CORP              | BM        |     39936 | NS      | $311101.44    | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| T-MOBILE US INC           | T-MOBILE US INC                | CUSIP: 872590104<br>LEI: 549300QHIJYOHPACPG31 | Long             | EC               | CORP              | US        |     16134 | NS      | $2443655.64   | 6.83%             |  |  |  | No            |                  1 | On Loan: No      |
| AMAZON.COM INC            | AMAZON.COM INC                 | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |     15818 | NS      | $1527069.72   | 4.27%             |  |  |  | No            |                  1 | On Loan: No      |
| LIBERTY BROADBAND CORP    | LIBERTY BROADBAND CORP A       | CUSIP: 530307107<br>LEI: 549300MIX43II8JLN536 | Long             | EC               | CORP              | US        |     19891 | NS      | $1794168.20   | 5.02%             |  |  |  | No            |                  1 | On Loan: No      |
| ON SEMICONDUCTOR CORP     | ON SEMICONDUCTOR CORP          | CUSIP: 682189105<br>LEI: ZV20P4CNJVT8V1ZGJ064 | Long             | EC               | CORP              | US        |      6697 | NS      | $503614.40    | 1.41%             |  |  |  | No            |                  1 | On Loan: No      |
| META PLATFORMS INC        | META PLATFORMS INC CL A        | CUSIP: 30303M102<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | EC               | CORP              | US        |     17226 | NS      | $2034390.60   | 5.69%             |  |  |  | No            |                  1 | On Loan: No      |
| IMPINJ INC                | IMPINJ INC                     | CUSIP: 453204109<br>LEI: 549300M26VGKSMMWWN17 | Long             | EC               | CORP              | US        |      4765 | NS      | $607775.75    | 1.70%             |  |  |  | No            |                  1 | On Loan: No      |
| NXP SEMICONDUCTORS NV     | NXP SEMICONDUCTORS NV          | CUSIP: N/A<br>LEI: 724500M9BY5293JDF951       | Long             | EC               | CORP              | NL        |      2844 | NS      | $500088.96    | 1.40%             |  |  |  | No            |                  1 | On Loan: No      |
| DYCOM INDUSTRIES INC      | DYCOM INDUSTRIES INC           | CUSIP: 267475101<br>LEI: 549300F56EKTHQI3WT60 | Long             | EC               | CORP              | US        |      3541 | NS      | $322726.74    | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| DISH NETWORK CORP         | DISH NETWORK CORP A            | CUSIP: 25470M109<br>LEI: 529900U350CWHH15G169 | Long             | EC               | CORP              | US        |     55993 | NS      | $898687.65    | 2.51%             |  |  |  | No            |                  1 | On Loan: No      |
| ZSCALER INC               | ZSCALER INC                    | CUSIP: 98980G102<br>LEI: 529900MZ0RTK1BWRNF46 | Long             | EC               | CORP              | US        |      8106 | NS      | $1081745.70   | 3.03%             |  |  |  | No            |                  1 | On Loan: No      |
| CELLNEX TELECOM SAU       | CELLNEX TELECOM SAU            | CUSIP: N/A<br>LEI: 5493008T4YG3AQUI7P67       | Long             | EC               | CORP              | ES        |     24040 | NS      | $826700.66    | 2.31%             |  |  |  | No            |                  2 | On Loan: No      |
| BUMBLE INC                | BUMBLE INC CL A                | CUSIP: 12047B105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     12901 | NS      | $314268.36    | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| TENCENT HLDGS LTD         | TENCENT HOLDINGS LTD           | CUSIP: N/A<br>LEI: 254900N4SLUMW4XUYY11       | Long             | EC               | CORP              | KY        |     15393 | NS      | $582106.55    | 1.63%             |  |  |  | No            |                  2 | On Loan: No      |
| SNAP INC                  | SNAP INC - A                   | CUSIP: 83304A106<br>LEI: 549300JNC0L6VP8A2Q35 | Long             | EC               | CORP              | US        |    138203 | NS      | $1424872.93   | 3.99%             |  |  |  | No            |                  1 | On Loan: No      |
| RAKUTEN GROUP INC         | RAKUTEN GROUP INC              | CUSIP: N/A<br>LEI: 529900IMXUCQKUL1H943       | Long             | EC               | CORP              | JP        |    102837 | NS      | $494087.62    | 1.38%             |  |  |  | No            |                  2 | On Loan: No      |
| LIBERTY GLOBAL PLC        | LIBERTY GLOBAL PLC CL A        | CUSIP: N/A<br>LEI: 549300BSGXG3QLIQYT84       | Long             | EC               | CORP              | GB        |     22454 | NS      | $450876.32    | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| NETFLIX INC               | NETFLIX INC                    | CUSIP: 64110L106<br>LEI: 549300Y7VHGU0I7CE873 | Long             | EC               | CORP              | US        |      6294 | NS      | $1923005.82   | 5.38%             |  |  |  | No            |                  1 | On Loan: No      |
| TWILIO INC                | TWILIO INC CLASS A             | CUSIP: 90138F102<br>LEI: 5493004W8TRGD63APX93 | Long             | EC               | CORP              | US        |     13923 | NS      | $682505.46    | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| NVIDIA CORP               | NVIDIA CORP                    | CUSIP: 67066G104<br>LEI: 549300S4KLFTLO7GSQ80 | Long             | EC               | CORP              | US        |      8009 | NS      | $1355363.07   | 3.79%             |  |  |  | No            |                  1 | On Loan: No      |
| ANGI INC                  | ANGI INC                       | CUSIP: 00183L102<br>LEI: 5493003ENY577E6SZL06 | Long             | EC               | CORP              | US        |    131326 | NS      | $292856.98    | 0.82%             |  |  |  | No            |                  1 | On Loan: No      |
| RELIANCE INDUSTRIES LTD   | RELIANCE INDS GDR              | CUSIP: 759470107<br>LEI: 5493003UOETFYRONLG31 | Long             | EC               | CORP              | IN        |     18701 | NS      | $1244504.83   | 3.48%             |  |  |  | No            |                  2 | On Loan: No      |
| RENESAS ELECTRONICS CORP  | RENESAS ELECTRONICS CORP       | CUSIP: N/A<br>LEI: 5299000EPC47VJQOFB81       | Long             | EC               | CORP              | JP        |     44981 | NS      | $441160.47    | 1.23%             |  |  |  | No            |                  2 | On Loan: No      |
| AMERICAN TOWER CORP       | AMERICAN TOWER CORP            | CUSIP: 03027X100<br>LEI: 5493006ORUSIL88JOE18 | Long             | EC               | CORP              | US        |     10092 | NS      | $2232855.00   | 6.24%             |  |  |  | No            |                  1 | On Loan: No      |
| ARISTA NETWORKS INC       | ARISTA NETWORKS INC            | CUSIP: 040413106<br>LEI: 635400H1WKBLOQERUU95 | Long             | EC               | CORP              | US        |     14344 | NS      | $1998119.20   | 5.59%             |  |  |  | No            |                  1 | On Loan: No      |
| RINGCENTRAL INC           | RINGCENTRAL INC CL A           | CUSIP: 76680R206<br>LEI: 549300C8EH0H1614VE84 | Long             | EC               | CORP              | US        |      9848 | NS      | $364966.88    | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| MATCH GROUP INC           | MATCH GROUP INC                | CUSIP: 57667L107<br>LEI: 15OMOPB0A8K0EFUVD031 | Long             | EC               | CORP              | US        |     19493 | NS      | $985566.08    | 2.76%             |  |  |  | No            |                  1 | On Loan: No      |
| ALPHABET INC              | ALPHABET INC CL A              | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |     23643 | NS      | $2387706.57   | 6.68%             |  |  |  | No            |                  1 | On Loan: No      |
| UBER TECHNOLOGIES INC     | UBER TECHNOLOGIES INC          | CUSIP: 90353T100<br>LEI: 549300B2FTG34FILDR98 | Long             | EC               | CORP              | US        |     24091 | NS      | $702011.74    | 1.96%             |  |  |  | No            |                  1 | On Loan: No      |
| AKAMAI TECHNOLOGIES INC   | AKAMAI TECHNOLOGIES INC        | CUSIP: 00971T101<br>LEI: OC1LZNN2LF5WTJ5RIL89 | Long             | EC               | CORP              | US        |      6312 | NS      | $598756.32    | 1.67%             |  |  |  | No            |                  1 | On Loan: No      |
| SEA LTD                   | SEA LTD ADR                    | CUSIP: 81141R100<br>LEI: 529900OM6JLLW44YKI15 | Long             | EC               | CORP              | KY        |     30174 | NS      | $1761256.38   | 4.93%             |  |  |  | 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