# EDGAR Filing Document

**Accession Number:** 0001473646
**File Stem:** 0001410368-25-032301
**Filing Date:** 2025-11
**Character Count:** 39527
**Document Hash:** 58c543c1be59ac2de8d56751963dd7de
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-032301.hdr.sgml**: 20251126

**ACCESSION NUMBER**: 0001410368-25-032301

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251126

**DATE AS OF CHANGE**: 20251126

**PERIOD START**: 20251231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Stock Portfolio
- **CENTRAL INDEX KEY:** 0001473646

**ORGANIZATION NAME:**
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-22336
- **FILM NUMBER:** 251528462

**BUSINESS ADDRESS:**
- **STREET 1:** ONE POST OFFICE SQUARE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 8002256265

**MAIL ADDRESS:**
- **STREET 1:** ONE POST OFFICE SQUARE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Large-Cap Core Research Portfolio
- **DATE OF NAME CHANGE:** 20091001

## Series and Classes Contracts Data

### Stock Portfolio (Series ID: S000027121)

| Class ID   | Class Name      | Ticker Symbol   |
|:---|:---|:---|
| C000081816 | Stock Portfolio |  |

## Nport-Ex

Stock Portfolio<br>

September 30, 2025

Portfolio of Investments (Unaudited)

------

Common Stocks — 98.4%

---

| | | |
|:---|:---|:---|
| **Security** | **Shares** | &nbsp;&nbsp;**Value** |
| Aerospace & Defense — 1.0% | Aerospace & Defense — 1.0% | Aerospace & Defense — 1.0% |
| HEICO Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;24283 | &nbsp;&nbsp;$7839038 |
|  |  | &nbsp;&nbsp;**$7839038** |
| Beverages — 1.9% | Beverages — 1.9% | Beverages — 1.9% |
| Coca-Cola Co. | &nbsp;&nbsp;&nbsp;&nbsp;229545 | &nbsp;&nbsp;$15223424 |
|  |  | &nbsp;&nbsp;**$15223424** |
| Biotechnology — 1.9% | Biotechnology — 1.9% | Biotechnology — 1.9% |
| AbbVie, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;65005 | &nbsp;&nbsp;$15051258 |
| Caris Life Sciences, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8124 | &nbsp;&nbsp;&nbsp;&nbsp; 245751 |
|  |  | &nbsp;&nbsp;**$15297009** |
| Broadline Retail — 4.9% | Broadline Retail — 4.9% | Broadline Retail — 4.9% |
| Amazon.com, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;178010 | &nbsp;&nbsp;$39085656 |
|  |  | &nbsp;&nbsp;**$39085656** |
| Building Products — 0.5% | Building Products — 0.5% | Building Products — 0.5% |
| Carrier Global Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;63310 | &nbsp;&nbsp;$3779607 |
|  |  | &nbsp;&nbsp;**$3779607** |
| Capital Markets — 4.6% | Capital Markets — 4.6% | Capital Markets — 4.6% |
| Blue Owl Capital, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;433603 | &nbsp;&nbsp;$7340899 |
| Intercontinental Exchange, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;79831 | &nbsp;&nbsp;&nbsp;&nbsp; 13449927 |
| S&P Global, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;19138 | &nbsp;&nbsp;&nbsp;&nbsp; 9314656 |
| Tradeweb Markets, Inc., Class A | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;57354 | &nbsp;&nbsp;&nbsp;&nbsp; 6365147 |
|  |  | &nbsp;&nbsp;**$36470629** |
| Commercial Services & Supplies — 1.1% | Commercial Services & Supplies — 1.1% | Commercial Services & Supplies — 1.1% |
| Waste Connections, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;49714 | &nbsp;&nbsp;$8739721 |
|  |  | &nbsp;&nbsp;**$8739721** |
| Consumer Staples Distribution & Retail — 1.8% | Consumer Staples Distribution & Retail — 1.8% | Consumer Staples Distribution & Retail — 1.8% |
| Walmart, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;141267 | &nbsp;&nbsp;$14558977 |
|  |  | &nbsp;&nbsp;**$14558977** |
| Electrical Equipment — 3.5% | Electrical Equipment — 3.5% | Electrical Equipment — 3.5% |
| AMETEK, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;47250 | &nbsp;&nbsp;$8883000 |
| Eaton Corp. PLC | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;38469 | &nbsp;&nbsp;&nbsp;&nbsp; 14397023 |
| Siemens Energy AG<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;42252 | &nbsp;&nbsp;&nbsp;&nbsp; 4967953 |
|  |  | &nbsp;&nbsp;**$28247976** |

---

---

| | | |
|:---|:---|:---|
| **Security** | **Shares** | &nbsp;&nbsp;**Value** |
| Electronic Equipment, Instruments & Components — 1.3% | Electronic Equipment, Instruments & Components — 1.3% | Electronic Equipment, Instruments & Components — 1.3% |
| Amphenol Corp., Class A | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;84329 | &nbsp;&nbsp;$10435714 |
|  |  | &nbsp;&nbsp;**$10435714** |
| Entertainment — 5.3% | Entertainment — 5.3% | Entertainment — 5.3% |
| Liberty Media Corp.-Liberty Formula One, Class C<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;124065 | &nbsp;&nbsp;$12958589 |
| Live Nation Entertainment, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;58742 | &nbsp;&nbsp;&nbsp;&nbsp; 9598443 |
| Netflix, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11275 | &nbsp;&nbsp;&nbsp;&nbsp; 13517823 |
| Spotify Technology SA<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8652 | &nbsp;&nbsp;&nbsp;&nbsp; 6039096 |
|  |  | &nbsp;&nbsp;**$42113951** |
| Financial Services — 6.3% | Financial Services — 6.3% | Financial Services — 6.3% |
| Mr. Cooper Group, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;89162 | &nbsp;&nbsp;$18794458 |
| Shift4 Payments, Inc., Class A<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;144534 | &nbsp;&nbsp;&nbsp;&nbsp; 11186932 |
| Visa, Inc., Class A | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;58932 | &nbsp;&nbsp;&nbsp;&nbsp; 20118206 |
|  |  | &nbsp;&nbsp;**$50099596** |
| Health Care Equipment & Supplies — 2.3% | Health Care Equipment & Supplies — 2.3% | Health Care Equipment & Supplies — 2.3% |
| Abbott Laboratories | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;74830 | &nbsp;&nbsp;$10022730 |
| Hologic, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;121152 | &nbsp;&nbsp;&nbsp;&nbsp; 8176549 |
|  |  | &nbsp;&nbsp;**$18199279** |
| Health Care Providers & Services — 1.6% | Health Care Providers & Services — 1.6% | Health Care Providers & Services — 1.6% |
| McKesson Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7530 | &nbsp;&nbsp;$5817226 |
| Quest Diagnostics, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;37028 | &nbsp;&nbsp;&nbsp;&nbsp; 7056796 |
|  |  | &nbsp;&nbsp;**$12874022** |
| Hotels, Restaurants & Leisure — 2.4% | Hotels, Restaurants & Leisure — 2.4% | Hotels, Restaurants & Leisure — 2.4% |
| Booking Holdings, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1194 | &nbsp;&nbsp;$6446728 |
| Flutter Entertainment PLC<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;20303 | &nbsp;&nbsp;&nbsp;&nbsp; 5156962 |
| Marriott International, Inc., Class A | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;30582 | &nbsp;&nbsp;&nbsp;&nbsp; 7964776 |
|  |  | &nbsp;&nbsp;**$19568466** |
| Insurance — 2.6% | Insurance — 2.6% | Insurance — 2.6% |
| Allstate Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;47452 | &nbsp;&nbsp;$10185572 |
| Arthur J. Gallagher & Co. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;33125 | &nbsp;&nbsp;&nbsp;&nbsp; 10260137 |
|  |  | &nbsp;&nbsp;**$20445709** |
| Interactive Media & Services — 8.8% | Interactive Media & Services — 8.8% | Interactive Media & Services — 8.8% |
| Alphabet, Inc., Class C | &nbsp;&nbsp;&nbsp;&nbsp;170143 | &nbsp;&nbsp;$41438328 |
| Meta Platforms, Inc., Class A | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;39784 | &nbsp;&nbsp;&nbsp;&nbsp; 29216574 |
|  |  | &nbsp;&nbsp;**$70654902** |
| Life Sciences Tools & Services — 1.0% | Life Sciences Tools & Services — 1.0% | Life Sciences Tools & Services — 1.0% |
| Thermo Fisher Scientific, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16912 | &nbsp;&nbsp;$8202658 |
|  |  | &nbsp;&nbsp;**$8202658** |

---

------

Stock Portfolio<br>

September 30, 2025

Portfolio of Investments (Unaudited) — continued

------

---

| | | |
|:---|:---|:---|
| **Security** | **Shares** | &nbsp;&nbsp;**Value** |
| Machinery — 0.8% | Machinery — 0.8% | Machinery — 0.8% |
| Parker-Hannifin Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7996 | &nbsp;&nbsp;$6062167 |
|  |  | &nbsp;&nbsp;**$6062167** |
| Oil, Gas & Consumable Fuels — 2.4% | Oil, Gas & Consumable Fuels — 2.4% | Oil, Gas & Consumable Fuels — 2.4% |
| ConocoPhillips | &nbsp;&nbsp;&nbsp;&nbsp;114987 | &nbsp;&nbsp;$10876620 |
| EQT Corp. | &nbsp;&nbsp;&nbsp;&nbsp;159383 | &nbsp;&nbsp;&nbsp;&nbsp; 8675217 |
|  |  | &nbsp;&nbsp;**$19551837** |
| Pharmaceuticals — 1.8% | Pharmaceuticals — 1.8% | Pharmaceuticals — 1.8% |
| Eli Lilly & Co. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;19338 | &nbsp;&nbsp;$14754894 |
|  |  | &nbsp;&nbsp;**$14754894** |
| Professional Services — 1.2% | Professional Services — 1.2% | Professional Services — 1.2% |
| TransUnion | &nbsp;&nbsp;&nbsp;&nbsp;113460 | &nbsp;&nbsp;$9505679 |
|  |  | &nbsp;&nbsp;**$9505679** |
| Real Estate Management & Development — 2.4% | Real Estate Management & Development — 2.4% | Real Estate Management & Development — 2.4% |
| CoStar Group, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;133831 | &nbsp;&nbsp;$11291322 |
| FirstService Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;43139 | &nbsp;&nbsp;&nbsp;&nbsp; 8217548 |
|  |  | &nbsp;&nbsp;**$19508870** |
| Semiconductors & Semiconductor Equipment — 16.6% | Semiconductors & Semiconductor Equipment — 16.6% | Semiconductors & Semiconductor Equipment — 16.6% |
| Analog Devices, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;41869 | &nbsp;&nbsp;$10287213 |
| Broadcom, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;96951 | &nbsp;&nbsp;&nbsp;&nbsp; 31985105 |
| Lam Research Corp. | &nbsp;&nbsp;&nbsp;&nbsp;117847 | &nbsp;&nbsp;&nbsp;&nbsp; 15779713 |
| NVIDIA Corp. | &nbsp;&nbsp;&nbsp;&nbsp;397578 | &nbsp;&nbsp;&nbsp;&nbsp; 74180103 |
|  |  | &nbsp;&nbsp;**$132232134** |
| Software — 11.5% | Software — 11.5% | Software — 11.5% |
| Fair Isaac Corp.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3269 | &nbsp;&nbsp;$4892157 |
| Microsoft Corp. | &nbsp;&nbsp;&nbsp;&nbsp;128862 | &nbsp;&nbsp;&nbsp;&nbsp; 66744073 |
| Palo Alto Networks, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;50573 | &nbsp;&nbsp;&nbsp;&nbsp; 10297674 |
| Synopsys, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;19820 | &nbsp;&nbsp;&nbsp;&nbsp; 9778990 |
|  |  | &nbsp;&nbsp;**$91712894** |

---

---

| | | |
|:---|:---|:---|
| **Security** | **Shares** | &nbsp;&nbsp;**Value** |
| Specialty Retail — 2.5% | Specialty Retail — 2.5% | Specialty Retail — 2.5% |
| Burlington Stores, Inc.<sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;37601 | &nbsp;&nbsp;$9569454 |
| TJX Cos., Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;69381 | &nbsp;&nbsp;&nbsp;&nbsp; 10028330 |
|  |  | &nbsp;&nbsp;**$19597784** |
| Technology Hardware, Storage & Peripherals — 6.4% | Technology Hardware, Storage & Peripherals — 6.4% | Technology Hardware, Storage & Peripherals — 6.4% |
| Apple, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;202358 | &nbsp;&nbsp;$51526418 |
|  |  | &nbsp;&nbsp;**$51526418** |
| Total Common Stocks<br> (identified cost $403,273,661) |  | &nbsp;&nbsp;**$786289011** |

---

Short-Term Investments — 2.3%

---

| | | |
|:---|:---|:---|
| **Security** | **Shares** | &nbsp;&nbsp;**Value** |
| Morgan Stanley Institutional Liquidity Funds - Government Portfolio, Institutional Class, 4.05%<sup>(2)</sup> | 18112207 | &nbsp;&nbsp;$18112207 |
| Total Short-Term Investments<br> (identified cost $18,112,207) |  | &nbsp;&nbsp;**$18112207** |
| Total Investments — 100.7%<br> (identified cost $421,385,868) |  | &nbsp;&nbsp;**$804401218** |
| Other Assets, Less Liabilities — (0.7)% |  | &nbsp;&nbsp;**$(5788433)** |
| Net Assets — 100.0% |  | &nbsp;&nbsp;**$798612785** |

---

---

| | |
|:---|:---|
| The percentage shown for each investment category in the Portfolio of Investments is based on net assets. | The percentage shown for each investment category in the Portfolio of Investments is based on net assets. |
| <sup>(1)</sup> | Non-income producing security. |
| <sup>(2)</sup> | May be deemed to be an affiliated investment company. The rate shown is the annualized seven-day yield as of September 30, 2025. |

---

The Portfolio did not have any open derivative instruments at September 30, 2025.

------

Stock Portfolio<br>

September 30, 2025

Portfolio of Investments (Unaudited) — continued

------

Affiliated Investments

At September 30, 2025, the value of the Portfolio's investment in funds that may be deemed to be affiliated was $18,112,207, which represents 2.3% of the Portfolio's net assets. Transactions in such investments by the Portfolio for the fiscal year to date ended September 30, 2025 were as follows:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Name** | **Value,<br> beginning<br> of period** | **Purchases** | **Sales<br> proceeds** | **Net realized<br> gain (loss)** | **Change in<br> unrealized<br> appreciation<br> (depreciation)** | **Value, end<br> of period** | **Dividend<br> income** | **Shares,<br> end of period** |
| **Short-Term Investments** | **Short-Term Investments** | **Short-Term Investments** | **Short-Term Investments** | **Short-Term Investments** | **Short-Term Investments** | **Short-Term Investments** | **Short-Term Investments** | **Short-Term Investments** |
| Liquidity Fund, Institutional Class<sup>(1)</sup> | $1361413 | $95926743 | $(79175949) | $— | $— | $18112207 | $123882 | 18112207 |

---

<sup>(1)</sup> Represents investment in Morgan Stanley Institutional Liquidity Funds - Government Portfolio.

Fair Value Measurements

Under generally accepted accounting principles for fair value measurements, a three-tier hierarchy to prioritize the assumptions, referred to as inputs, is used in valuation techniques to measure fair value. The three-tier hierarchy of inputs is summarized in the three broad levels listed below.

• Level 1 – quoted prices in active markets for identical investments

• Level 2 – other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

• Level 3 – significant unobservable inputs (including a fund's own assumptions in determining the fair value of investments)

In cases where the inputs used to measure fair value fall in different levels of the fair value hierarchy, the level disclosed is determined based on the lowest level input that is significant to the fair value measurement in its entirety. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

At September 30, 2025, the hierarchy of inputs used in valuing the Portfolio's investments, which are carried at fair value, were as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Asset Description** | &nbsp;&nbsp;**Level 1** | &nbsp;&nbsp;&nbsp;&nbsp;**Level 2** | &nbsp;&nbsp;&nbsp;&nbsp;**Level 3** | &nbsp;&nbsp;&nbsp;&nbsp;**Total** |
| Common Stocks: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Communication Services | &nbsp;&nbsp;$112768853 | &nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;$112768853 |
| &nbsp;&nbsp;&nbsp;Consumer Discretionary | &nbsp;&nbsp;&nbsp;&nbsp; 78251906 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 78251906 |
| &nbsp;&nbsp;&nbsp;Consumer Staples | &nbsp;&nbsp;&nbsp;&nbsp; 29782401 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 29782401 |
| &nbsp;&nbsp;&nbsp;Energy | &nbsp;&nbsp;&nbsp;&nbsp; 19551837 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 19551837 |
| &nbsp;&nbsp;&nbsp;Financials | &nbsp;&nbsp;&nbsp;&nbsp;107015934 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;107015934 |
| &nbsp;&nbsp;&nbsp;Health Care | &nbsp;&nbsp;&nbsp;&nbsp; 69327862 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 69327862 |
| &nbsp;&nbsp;&nbsp;Industrials | &nbsp;&nbsp;&nbsp;&nbsp; 59206235 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4967953 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 64174188 |
| &nbsp;&nbsp;&nbsp;Information Technology | &nbsp;&nbsp;&nbsp;&nbsp;285907160 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;285907160 |
| &nbsp;&nbsp;&nbsp;Real Estate | &nbsp;&nbsp;&nbsp;&nbsp; 19508870 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 19508870 |
| **Total Common Stocks** | &nbsp;&nbsp;**$781321058** | &nbsp;&nbsp;&nbsp;&nbsp;**$4,967,953\*** | &nbsp;&nbsp;&nbsp;&nbsp;**$—** | &nbsp;&nbsp;&nbsp;&nbsp;**$786289011** |
| Short-Term Investments | &nbsp;&nbsp;$18112207 | &nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;$18112207 |
| **Total Investments** | &nbsp;&nbsp;**$799433265** | &nbsp;&nbsp;&nbsp;&nbsp;**$4967953** | &nbsp;&nbsp;&nbsp;&nbsp;**$—** | &nbsp;&nbsp;&nbsp;&nbsp;**$804401218** |

---

\* Includes foreign equity securities whose values were adjusted to reflect market trading of comparable securities or other correlated instruments that occurred after the close of trading in their applicable foreign markets.

For information on the Portfolio's policy regarding the valuation of investments and other significant accounting policies, please refer to the Portfolio's most recent annual or semi-annual financial statements.

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** Stock Portfolio

- **b. Investment Company Act file number:** 811-22336

- **c. CIK number of Registrant:** 0001473646

- **d. LEI of Registrant:** 549300L4KW73KDMNCW84

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

  - **Street Address 1:** One Post Office Square

  - **City:** BOSTON

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 02109

  - **Telephone number:** 617-482-8260

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

- **a. Name of Series:** Stock Portfolio

- **b. EDGAR series identifier (if any):** S000027121

- **c. LEI of Series:** 549300L4KW73KDMNCW84

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

- **a. Date of fiscal year-end:** 2025-12-31

- **b. Date as of which information is reported:** 2025-09-30

**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:** $799172506.76

**Total Liabilities:** $556824.92

**Net Assets:** $798615681.84

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000081816 | 2.07%                | 0.71%                | 1.79%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $6932921.66              | $9128027.73                                |
| Month 2  | $1365783.15              | $3539033.27                                |
| Month 3  | $2736050.35              | $10951425.47                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| EQT Corp                               | EQT Corp                                                            | CUSIP: 26884L109<br>LEI: 4NT01YGM4X7ZX86ISY52 | Long             | EC               | CORP              | US        |    159383 | NS      | $8675216.69   | 1.09%             |  |  |  | No            |                  1 | On Loan: No      |
| AMETEK Inc                             | AMETEK Inc                                                          | CUSIP: 031100100<br>LEI: 549300WZDEF9KKE40E98 | Long             | EC               | CORP              | US        |     47250 | NS      | $8883000.00   | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Amphenol Corp                          | Amphenol Corp                                                       | CUSIP: 032095101<br>LEI: 549300D3L3G0R4U4VT04 | Long             | EC               | CORP              | US        |     84329 | NS      | $10435713.75  | 1.31%             |  |  |  | No            |                  1 | On Loan: No      |
| AbbVie Inc                             | AbbVie Inc                                                          | CUSIP: 00287Y109<br>LEI: FR5LCKFTG8054YNNRU85 | Long             | EC               | CORP              | US        |     65005 | NS      | $15051257.70  | 1.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Tradeweb Markets Inc                   | Tradeweb Markets Inc                                                | CUSIP: 892672106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     57354 | NS      | $6365146.92   | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Thermo Fisher Scientific Inc           | Thermo Fisher Scientific Inc                                        | CUSIP: 883556102<br>LEI: HCHV7422L5HDJZCRFL38 | Long             | EC               | CORP              | US        |     16912 | NS      | $8202658.24   | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Burlington Stores Inc                  | Burlington Stores Inc                                               | CUSIP: 122017106<br>LEI: 5299003Z37DVGKKC1W09 | Long             | EC               | CORP              | US        |     37601 | NS      | $9569454.50   | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Spotify Technology SA                  | Spotify Technology SA                                               | CUSIP: 000000000<br>LEI: 549300B4X0JHWV0DTD60 | Long             | EC               | CORP              | LU        |      6807 | NS      | $4751286.00   | 0.59%             |  |  |  | No            |                  1 | On Loan: No      |
| Marriott International Inc/MD          | Marriott International Inc/MD                                       | CUSIP: 571903202<br>LEI: 225YDZ14ZO8E1TXUSU86 | Long             | EC               | CORP              | US        |     30582 | NS      | $7964776.08   | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Blue Owl Capital Inc                   | Blue Owl Capital Inc                                                | CUSIP: 09581B103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    433603 | NS      | $7340898.79   | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Visa Inc                               | Visa Inc                                                            | CUSIP: 92826C839<br>LEI: 549300JZ4OKEHW3DPJ59 | Long             | EC               | CORP              | US        |     58932 | NS      | $20118206.16  | 2.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Lam Research Corp                      | Lam Research Corp                                                   | CUSIP: 512807306<br>LEI: 549300I4GMO6D34U1T02 | Long             | EC               | CORP              | US        |    117847 | NS      | $15779713.30  | 1.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                         | Microsoft Corp                                                      | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |    128862 | NS      | $66744072.90  | 8.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Intercontinental Exchange Inc          | Intercontinental Exchange Inc                                       | CUSIP: 45866F104<br>LEI: 5493000F4ZO33MV32P92 | Long             | EC               | CORP              | US        |     79831 | NS      | $13449926.88  | 1.68%             |  |  |  | No            |                  1 | On Loan: No      |
| NVIDIA Corp                            | NVIDIA Corp                                                         | CUSIP: 67066G104<br>LEI: 549300S4KLFTLO7GSQ80 | Long             | EC               | CORP              | US        |    397578 | NS      | $74180103.24  | 9.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                           | Alphabet Inc                                                        | CUSIP: 02079K107<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |    170143 | NS      | $41438327.65  | 5.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Walmart Inc                            | Walmart Inc                                                         | CUSIP: 931142103<br>LEI: Y87794H0US1R65VBXU25 | Long             | EC               | CORP              | US        |    141267 | NS      | $14558977.02  | 1.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Coca-Cola Co/The                       | Coca-Cola Co/The                                                    | CUSIP: 191216100<br>LEI: UWJKFUJFZ02DKWI3RY53 | Long             | EC               | CORP              | US        |    229545 | NS      | $15223424.40  | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| TransUnion                             | TransUnion                                                          | CUSIP: 89400J107<br>LEI: 549300ZS772LUNUMRB03 | Long             | EC               | CORP              | US        |    113460 | NS      | $9505678.80   | 1.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Shift4 Payments Inc                    | Shift4 Payments Inc                                                 | CUSIP: 82452J109<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    144534 | NS      | $11186931.60  | 1.40%             |  |  |  | No            |                  1 | On Loan: No      |
| CoStar Group Inc                       | CoStar Group Inc                                                    | CUSIP: 22160N109<br>LEI: 984500Q1D53D08E2E698 | Long             | EC               | CORP              | US        |    133831 | NS      | $11291321.47  | 1.41%             |  |  |  | No            |                  1 | On Loan: No      |
| TJX Cos Inc/The                        | TJX Cos Inc/The                                                     | CUSIP: 872540109<br>LEI: V167QI9I69W364E2DY52 | Long             | EC               | CORP              | US        |     69381 | NS      | $10028329.74  | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Netflix Inc                            | Netflix Inc                                                         | CUSIP: 64110L106<br>LEI: 549300Y7VHGU0I7CE873 | Long             | EC               | CORP              | US        |     11275 | NS      | $13517823.00  | 1.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Caris Life Sciences Inc                | Caris Life Sciences Inc                                             | CUSIP: 142152107<br>LEI: 549300LX5LO78M5VPY43 | Long             | EC               | CORP              | US        |      8124 | NS      | $245751.00    | 0.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Broadcom Inc                           | Broadcom Inc                                                        | CUSIP: 11135F101<br>LEI: 549300WV6GIDOZJTV909 | Long             | EC               | CORP              | US        |     94186 | NS      | $31072903.26  | 3.89%             |  |  |  | No            |                  1 | On Loan: No      |
| HEICO Corp                             | HEICO Corp                                                          | CUSIP: 422806109<br>LEI: 529900O1DTDLCJ7L0I14 | Long             | EC               | CORP              | US        |     24283 | NS      | $7839038.06   | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Abbott Laboratories                    | Abbott Laboratories                                                 | CUSIP: 002824100<br>LEI: HQD377W2YR662HK5JX27 | Long             | EC               | CORP              | US        |     74830 | NS      | $10022730.20  | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Parker-Hannifin Corp                   | Parker-Hannifin Corp                                                | CUSIP: 701094104<br>LEI: 5493002CONDB4N2HKI23 | Long             | EC               | CORP              | US        |      7996 | NS      | $6062167.40   | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Analog Devices Inc                     | Analog Devices Inc                                                  | CUSIP: 032654105<br>LEI: GYVOE5EZ4GDAVTU4CQ61 | Long             | EC               | CORP              | US        |     41869 | NS      | $10287213.30  | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Meta Platforms Inc                     | Meta Platforms Inc                                                  | CUSIP: 30303M102<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | EC               | CORP              | US        |     39784 | NS      | $29216573.92  | 3.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Waste Connections Inc                  | Waste Connections Inc                                               | CUSIP: 94106B101<br>LEI: 549300HDLRTPBQU69P29 | Long             | EC               | CORP              | CA        |     42047 | NS      | $7391862.60   | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Morgan Stanley & Co. LLC               | Morgan Stanley Institutional Liquidity Funds - Government Portfolio | CUSIP: 61747C707<br>LEI: 549300BI6Y5SI6BYPB26 | Long             | STIV             | RF                | US        |  18112207 | NS      | $18112207.21  | 2.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Allstate Corp/The                      | Allstate Corp/The                                                   | CUSIP: 020002101<br>LEI: OBT0W1ED8G0NWVOLOJ77 | Long             | EC               | CORP              | US        |     47452 | NS      | $10185571.80  | 1.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Mr Cooper Group Inc                    | Mr Cooper Group Inc                                                 | CUSIP: 62482R107<br>LEI: 549300KD8C6DPXYC2M26 | Long             | EC               | CORP              | US        |     89162 | NS      | $18794457.98  | 2.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Carrier Global Corp                    | Carrier Global Corp                                                 | CUSIP: 14448C104<br>LEI: 549300JE3W6CWY2NAN77 | Long             | EC               | CORP              | US        |     63310 | NS      | $3779607.00   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Palo Alto Networks Inc                 | Palo Alto Networks Inc                                              | CUSIP: 697435105<br>LEI: 549300QXR2YVZV231H43 | Long             | EC               | CORP              | US        |     50573 | NS      | $10297674.26  | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Live Nation Entertainment Inc          | Live Nation Entertainment Inc                                       | CUSIP: 538034109<br>LEI: 5493007B9BM9ZXJINO78 | Long             | EC               | CORP              | US        |     58742 | NS      | $9598442.80   | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Liberty Media Corp-Liberty Formula One | Liberty Media Corp-Liberty Formula One                              | CUSIP: 531229755<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    124065 | NS      | $12958589.25  | 1.62%             |  |  |  | No            |                  1 | On Loan: No      |
| McKesson Corp                          | McKesson Corp                                                       | CUSIP: 58155Q103<br>LEI: 549300WZWOM80UCFSF54 | Long             | EC               | CORP              | US        |      7530 | NS      | $5817226.20   | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Synopsys Inc                           | Synopsys Inc                                                        | CUSIP: 871607107<br>LEI: QG7T915N9S0NY5UKNE63 | Long             | EC               | CORP              | US        |     19820 | NS      | $9778989.80   | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Apple Inc                              | Apple Inc                                                           | CUSIP: 037833100<br>LEI: HWUPKR0MPOU8FGXBT394 | Long             | EC               | CORP              | US        |    202358 | NS      | $51526417.54  | 6.45%             |  |  |  | No            |                  1 | On Loan: No      |
| FirstService Corp                      | FirstService Corp                                                   | CUSIP: 33767E202<br>LEI: 5493000XUDIV75BCF118 | Long             | EC               | CORP              | CA        |     43139 | NS      | $8217548.11   | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Booking Holdings Inc                   | Booking Holdings Inc                                                | CUSIP: 09857L108<br>LEI: FXM8FAOHMYDIPD38UZ17 | Long             | EC               | CORP              | US        |      1194 | NS      | $6446728.38   | 0.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Quest Diagnostics Inc                  | Quest Diagnostics Inc                                               | CUSIP: 74834L100<br>LEI: 8MCWUBXQ0WE04KMXBX50 | Long             | EC               | CORP              | US        |     37028 | NS      | $7056796.24   | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| S&P Global Inc                         | S&P Global Inc                                                      | CUSIP: 78409V104<br>LEI: Y6X4K52KMJMZE7I7MY94 | Long             | EC               | CORP              | US        |     19138 | NS      | $9314655.98   | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Flutter Entertainment PLC              | Flutter Entertainment PLC                                           | CUSIP: 000000000<br>LEI: 635400EG4YIJLJMZJ782 | Long             | EC               | CORP              | IE        |     20303 | NS      | $5156962.00   | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Eli Lilly & Co                         | Eli Lilly & Co                                                      | CUSIP: 532457108<br>LEI: FRDRIPF3EKNDJ2CQJL29 | Long             | EC               | CORP              | US        |     19338 | NS      | $14754894.00  | 1.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Siemens Energy AG                      | Siemens Energy AG                                                   | CUSIP: 000000000<br>LEI: 5299005CHJZ14D4FDJ62 | Long             | EC               | CORP              | DE        |     42252 | NS      | $4967953.00   | 0.62%             |  |  |  | No            |                  2 | On Loan: No      |
| Arthur J Gallagher & Co                | Arthur J Gallagher & Co                                             | CUSIP: 363576109<br>LEI: 54930049QLLMPART6V29 | Long             | EC               | CORP              | US        |     33125 | NS      | $10260137.50  | 1.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                         | Amazon.com Inc                                                      | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |    170607 | NS      | $37460178.99  | 4.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Fair Isaac Corp                        | Fair Isaac Corp                                                     | CUSIP: 303250104<br>LEI: RI6HET5SJUEY30V1PS26 | Long             | EC               | CORP              | US        |      3269 | NS      | $4892156.57   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Hologic Inc                            | Hologic Inc                                                         | CUSIP: 436440101<br>LEI: 549300DYP6F5ZJL0LB74 | Long             | EC               | CORP              | US        |    121152 | NS      | $8176548.48   | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Corp PLC                         | Eaton Corp PLC                                                      | CUSIP: 000000000<br>LEI: 549300VDIGTMXUNT7H71 | Long             | EC               | CORP              | IE        |     36782 | NS      | $13765663.50  | 1.72%             |  |  |  | No            |                  1 | On Loan: No      |
| ConocoPhillips                         | ConocoPhillips                                                      | CUSIP: 20825C104<br>LEI: WPTL2Z3FIYTHSP5V2253 | Long             | EC               | CORP              | US        |    114987 | NS      | $10876620.33  | 1.36%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-10-29

**Name of Applicant:** Stock Portfolio

**Signature:** James Kirchner

**Name of Signer:** James Kirchner

**Title:** Treasurer