# EDGAR Filing Document

**Accession Number:** 0000787441
**File Stem:** 0001926623-23-000004
**Filing Date:** 2023-1
**Character Count:** 33064
**Document Hash:** 0b1b061f31ff87fd6a5e2f3095ee1a4d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001926623-23-000004.hdr.sgml**: 20230109

**ACCESSION NUMBER**: 0001926623-23-000004

**CONFORMED SUBMISSION TYPE**: N-MFP2

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230109

**DATE AS OF CHANGE**: 20230109

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MAINSTAY FUNDS
- **CENTRAL INDEX KEY:** 0000787441
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** N-MFP2
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-04550
- **FILM NUMBER:** 23517199

**BUSINESS ADDRESS:**
- **STREET 1:** 51 MADISON AVE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010
- **BUSINESS PHONE:** 2125767000

**MAIL ADDRESS:**
- **STREET 1:** 51 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MACKAY SHIELDS MAINSTAY SERIES FUND /NY/
- **DATE OF NAME CHANGE:** 19911126

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MACKAY SHIELDS SERIES FUND
- **DATE OF NAME CHANGE:** 19860506

## Series and Classes Contracts Data

### MainStay Money Market Fund (Series ID: S000006897)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000018697 | Class A        | MMAXX           |
| C000018698 | Class B        | MKMXX           |
| C000018699 | Class C        | MSCXX           |
| C000060793 | INVESTOR CLASS | MKTXX           |
| C000221692 | SIMPLE CLASS   | MIPXX           |

# Form N-MFP: Monthly Schedule of Portfolio Holdings

## N-MFP: Filer Information

**Submission Type:** N-MFP2

**Live/Test Flag:** —

**Is Electronic Copy of Paper Format:** —

**CIK:** —

### General Information

**Report for (YYYY-MM-DD):** 2022-12-31

**EDGAR Series Identifier:** S000006897

**Total number of share classes in the series:** —

**Is this the fund's final filing on Form N-MFP?:** —

**Is Fund Liquidating?:** —

**Is Fund Merging/Being Acquired?:** —

**Has the fund acquired or merged with another fund during the reporting period?:** —

## Part A: Series-Level Information about the Fund

### Service Providers
| Item   | Role                          | Details                                      | File/CIK Number   |
|:---|:---|:---|:---|
| A.5    | Administrator                 | New York Life Investment Management LLC      |  |
| A.4    | Independent Public Accountant | KPMG LLP<br>City: Philadelphia<br>State: PA  |  |
| A.6    | Transfer Agent                | NYLIM Service Company LLC<br>CIK: 0001103598 | 084-05844         |

### Fund Characteristics & Assets

- **A.1 - Securities Act File Number:** 033-02610

- **A.7 - Is this a Feeder Fund?:** No

- **A.8 - Is this a Master Fund?:** No

- **A.9 - Is this series primarily used to fund insurance company separate accounts?:** No

- **A.10 - Money Market Fund Category:** Prime

- **A.11 - WAM:** 11 days

- **A.12 - WAL:** 11 days

- **Total Value of Portfolio Securities:** $490257624.42

- **Amortized Cost of Portfolio Securities:** $490362170.55

- **Cash:** $783.65

- **Total Other Assets:** $152489.64

- **Total Liabilities:** $1677932.24

- **Net Assets of Series:** $488837511.60

- **Number of Shares Outstanding (Series):** 488853915.20

- **Stable Price Per Share:** $1.00

- **7-Day Gross Yield:** 4.3100%

### Weekly Liquid Assets
| Period         | Daily Liquid Assets ($)   | Weekly Liquid Assets ($)   | Daily Liquid Assets (%)   | Weekly Liquid Assets (%)   |
|:---|:---|:---|:---|:---|
| Friday, Week 1 |  | $266711745.55              |  | 54.9700%                   |
| Friday, Week 2 |  | $225843102.37              |  | 46.6400%                   |
| Friday, Week 3 |  | $225600352.46              |  | 46.5800%                   |
| Friday, Week 4 |  | $275334190.71              |  | 56.0600%                   |
| Friday, Week 5 |  | $270765877.04              |  | 55.2100%                   |

## Part B: Class-Level Information about the Fund

### Class: Unknown Class (—)

- **B.2 - Minimum Initial Investment:** $15000.00

- **B.3 - Net Assets of Class:** $428988396.82

- **B.4 - Shares Outstanding:** 428991492.87

- **B.7.7 - 7-Day Net Yield:** 3.7900%

- **Person Paying for Fund Expenses?:** No

**Weekly Flows:**

| Period   | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| Week 1   | $5431669.83               | $11734624.34            |
| Week 2   | $7714470.49               | $8770538.25             |
| Week 3   | $7041872.00               | $6690035.55             |
| Week 4   | $15493756.26              | $8055101.34             |
| Week 5   | $6125063.60               | $7293064.32             |

**Monthly Shareholder Flow Activity:**

- **Gross Subscriptions for month:** $39798378.82

- **Gross Redemptions for month:** $37947055.17

### Class: Unknown Class (—)

- **B.2 - Minimum Initial Investment:** $1000.00

- **B.3 - Net Assets of Class:** $23321001.11

- **B.4 - Shares Outstanding:** 23324487.32

- **B.7.7 - 7-Day Net Yield:** 3.5100%

- **Person Paying for Fund Expenses?:** Yes

- **Expense Reimbursement/Waiver Description:** New York Life Investment Management, LLC, Expense Waiver, 1925.63;

**Weekly Flows:**

| Period   | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| Week 1   | $87637.83                 | $93481.61               |
| Week 2   | $53021.86                 | $55617.14               |
| Week 3   | $24069.68                 | $69835.76               |
| Week 4   | $11153.20                 | $46914.24               |
| Week 5   | $73658.30                 | $27405.36               |

**Monthly Shareholder Flow Activity:**

- **Gross Subscriptions for month:** $249540.87

- **Gross Redemptions for month:** $280287.82

### Class: Unknown Class (—)

- **B.2 - Minimum Initial Investment:** $1000.00

- **B.3 - Net Assets of Class:** $17667199.96

- **B.4 - Shares Outstanding:** 17667232.76

- **B.7.7 - 7-Day Net Yield:** 3.5100%

- **Person Paying for Fund Expenses?:** Yes

- **Expense Reimbursement/Waiver Description:** New York Life Investment Management, LLC, Expense Waiver, 1470.02;

**Weekly Flows:**

| Period   | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| Week 1   | $331316.24                | $386753.49              |
| Week 2   | $72324.13                 | $81637.70               |
| Week 3   | $232390.03                | $661564.10              |
| Week 4   | $310019.67                | $374813.15              |
| Week 5   | $231262.76                | $108913.69              |

**Monthly Shareholder Flow Activity:**

- **Gross Subscriptions for month:** $1023812.51

- **Gross Redemptions for month:** $1555054.90

### Class: Unknown Class (—)

- **B.2 - Minimum Initial Investment:** $1000.00

- **B.3 - Net Assets of Class:** $18770361.94

- **B.4 - Shares Outstanding:** 18780149.72

- **B.7.7 - 7-Day Net Yield:** 3.5100%

- **Person Paying for Fund Expenses?:** Yes

- **Expense Reimbursement/Waiver Description:** New York Life Investment Management, LLC, Expense Waiver, 1600.22;

**Weekly Flows:**

| Period   | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| Week 1   | $164611.84                | $227806.93              |
| Week 2   | $193648.88                | $175210.56              |
| Week 3   | $188725.07                | $107455.10              |
| Week 4   | $138732.87                | $1061490.58             |
| Week 5   | $106981.01                | $102895.10              |

**Monthly Shareholder Flow Activity:**

- **Gross Subscriptions for month:** $749011.54

- **Gross Redemptions for month:** $1482381.87

### Class: Unknown Class (—)

- **B.2 - Minimum Initial Investment:** $1.00

- **B.3 - Net Assets of Class:** $90551.77

- **B.4 - Shares Outstanding:** 90552.53

- **B.7.7 - 7-Day Net Yield:** 3.5100%

- **Person Paying for Fund Expenses?:** Yes

- **Expense Reimbursement/Waiver Description:** New York Life Investment Management, LLC, Expense Waiver, 7.44;

**Weekly Flows:**

| Period   | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| Week 1   | $261.37                   | $0.00                   |
| Week 2   | $0.00                     | $3777.49                |
| Week 4   | $639.34                   | $0.00                   |
| Week 5   | $544.94                   | $0.00                   |

**Monthly Shareholder Flow Activity:**

- **Gross Subscriptions for month:** $1445.65

- **Gross Redemptions for month:** $3777.49

## Part C: Schedule of Portfolio Securities

### Security 1: Toronto-Dominion Bank

- **C.1 - Title:** Toronto-Dominion Bank 4.173
- **C.6 - Investment Category:** Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 89119BN44, C.4 - ISIN: US89119BN441, C.3 - LEI: PT3QB789TSUIDF371261
- **C.18 - Value (incl. sponsor support):** $19988025.00
- **C.18.a - Value (excl. sponsor support):** $19988025.00
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.1700%
- **C.11 - Maturity Date (WAM):** 2023-01-04
- **C.12 - Maturity Date (WAL):** 2023-01-04
- **C.13 - Final Legal Maturity Date:** 2023-01-04
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 2: American Transmission Co. LLC

- **C.1 - Title:** American Transmission Co. LLC 4.102
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 03028UN35, C.4 - ISIN: US03028UN355
- **C.18 - Value (incl. sponsor support):** $19990635.60
- **C.18.a - Value (excl. sponsor support):** $19990635.60
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.1000%
- **C.11 - Maturity Date (WAM):** 2023-01-03
- **C.12 - Maturity Date (WAL):** 2023-01-03
- **C.13 - Final Legal Maturity Date:** 2023-01-03
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 3: Archer-Daniels-Midland Co.

- **C.1 - Title:** Archer-Daniels-Midland Co. 4.007
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 03948HND9, C.4 - ISIN: US03948HND97, C.3 - LEI: 549300LO13MQ9HYSTR83
- **C.18 - Value (incl. sponsor support):** $19966578.80
- **C.18.a - Value (excl. sponsor support):** $19966578.80
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.0100%
- **C.11 - Maturity Date (WAM):** 2023-01-13
- **C.12 - Maturity Date (WAL):** 2023-01-13
- **C.13 - Final Legal Maturity Date:** 2023-01-13
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

### Security 4: Canadian National Railway Co.

- **C.1 - Title:** Canadian National Railway Co. 4.103
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 13639DN58, C.4 - ISIN: US13639DN585, C.3 - LEI: 3SU7BEP7TH9YEQOZCS77
- **C.18 - Value (incl. sponsor support):** $19985576.60
- **C.18.a - Value (excl. sponsor support):** $19985576.60
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.1000%
- **C.11 - Maturity Date (WAM):** 2023-01-05
- **C.12 - Maturity Date (WAL):** 2023-01-05
- **C.13 - Final Legal Maturity Date:** 2023-01-05
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? Yes, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

**C.15.a - Guarantor Details:**

- **Identity of Guarantor:** CANADIAN NATL RA

- **Amount Provided:** 1.0000

### Security 5: Caterpillar Financial Services Corp.

- **C.1 - Title:** Caterpillar Financial Services Corp. 4.279
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 14912ENH6, C.4 - ISIN: US14912ENH61, C.3 - LEI: EDBQKYOPJUCJKLOJDE72
- **C.18 - Value (incl. sponsor support):** $19956960.00
- **C.18.a - Value (excl. sponsor support):** $19956960.00
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0800%
- **C.17 - Yield as of Reporting Date:** 4.2800%
- **C.11 - Maturity Date (WAM):** 2023-01-17
- **C.12 - Maturity Date (WAL):** 2023-01-17
- **C.13 - Final Legal Maturity Date:** 2023-01-17
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? Yes, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

**C.15.a - Guarantor Details:**

- **Identity of Guarantor:** CATERPILLAR INC

- **Amount Provided:** 1.0000

### Security 6: Colgate-Palmolive Co.

- **C.1 - Title:** Colgate-Palmolive Co. 4.284
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 19416FN67, C.4 - ISIN: US19416FN678, C.3 - LEI: YMEGZFW4SBUSS5BQXF88
- **C.18 - Value (incl. sponsor support):** $19983316.60
- **C.18.a - Value (excl. sponsor support):** $19983316.60
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.2800%
- **C.11 - Maturity Date (WAM):** 2023-01-06
- **C.12 - Maturity Date (WAL):** 2023-01-06
- **C.13 - Final Legal Maturity Date:** 2023-01-06
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 7: Cummins, Inc.

- **C.1 - Title:** Cummins, Inc. 4.289
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 23102VNH9, C.4 - ISIN: US23102VNH95, C.3 - LEI: ZUNI8PYC725B6H8JU438
- **C.18 - Value (incl. sponsor support):** $19956660.00
- **C.18.a - Value (excl. sponsor support):** $19956660.00
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0800%
- **C.17 - Yield as of Reporting Date:** 4.2900%
- **C.11 - Maturity Date (WAM):** 2023-01-17
- **C.12 - Maturity Date (WAL):** 2023-01-17
- **C.13 - Final Legal Maturity Date:** 2023-01-17
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

### Security 8: Emerson Electric Co.

- **C.1 - Title:** Emerson Electric Co. 4.266
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 29101BNA6, C.4 - ISIN: US29101BNA60, C.3 - LEI: FGLT0EWZSUIRRITFOA30
- **C.18 - Value (incl. sponsor support):** $19973728.40
- **C.18.a - Value (excl. sponsor support):** $19973728.40
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.2700%
- **C.11 - Maturity Date (WAM):** 2023-01-10
- **C.12 - Maturity Date (WAL):** 2023-01-10
- **C.13 - Final Legal Maturity Date:** 2023-01-10
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

### Security 9: GlaxoSmithKline LLC

- **C.1 - Title:** GlaxoSmithKline LLC 4.312
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 37737QN34, C.4 - ISIN: US37737QN342, C.3 - LEI: 549300Y2PZWSSLJYI255
- **C.18 - Value (incl. sponsor support):** $19990384.40
- **C.18.a - Value (excl. sponsor support):** $19990384.40
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.3100%
- **C.11 - Maturity Date (WAM):** 2023-01-03
- **C.12 - Maturity Date (WAL):** 2023-01-03
- **C.13 - Final Legal Maturity Date:** 2023-01-03
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? Yes, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

**C.15.a - Guarantor Details:**

- **Identity of Guarantor:** GLAXOSMITHLINE

- **Amount Provided:** 1.0000

### Security 10: Kimberly-Clark Corp.

- **C.1 - Title:** Kimberly-Clark Corp. 4.324
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 49436UN67, C.4 - ISIN: US49436UN679, C.3 - LEI: MP3J6QPYPGN75NVW2S34
- **C.18 - Value (incl. sponsor support):** $16186360.57
- **C.18.a - Value (excl. sponsor support):** $16186360.57
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 3.3100%
- **C.17 - Yield as of Reporting Date:** 4.3200%
- **C.11 - Maturity Date (WAM):** 2023-01-06
- **C.12 - Maturity Date (WAL):** 2023-01-06
- **C.13 - Final Legal Maturity Date:** 2023-01-06
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 11: National Rural Utilities Cooperative Finance Corp.

- **C.1 - Title:** National Rural Utilities Cooperative Finance Corp. 4.610
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 63743DNH0, C.4 - ISIN: US63743DNH07, C.3 - LEI: 4NYF266XZC35SCTGX023
- **C.18 - Value (incl. sponsor support):** $19956660.00
- **C.18.a - Value (excl. sponsor support):** $19956660.00
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0800%
- **C.17 - Yield as of Reporting Date:** 4.6100%
- **C.11 - Maturity Date (WAM):** 2023-01-17
- **C.12 - Maturity Date (WAL):** 2023-01-17
- **C.13 - Final Legal Maturity Date:** 2023-01-17
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

### Security 12: Northern Illinois Gas Co.

- **C.1 - Title:** Northern Illinois Gas Co. 4.662
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 66522UNK5, C.4 - ISIN: US66522UNK50, C.3 - LEI: 549300H5GUKWH3CAB355
- **C.18 - Value (incl. sponsor support):** $19948344.40
- **C.18.a - Value (excl. sponsor support):** $19948344.40
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0800%
- **C.17 - Yield as of Reporting Date:** 4.6600%
- **C.11 - Maturity Date (WAM):** 2023-01-19
- **C.12 - Maturity Date (WAL):** 2023-01-19
- **C.13 - Final Legal Maturity Date:** 2023-01-19
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

### Security 13: Novartis Finance Corp.

- **C.1 - Title:** Novartis Finance Corp. 4.317
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 6698M5NX3, C.4 - ISIN: US6698M5NX30
- **C.18 - Value (incl. sponsor support):** $19923395.60
- **C.18.a - Value (excl. sponsor support):** $19923395.60
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0800%
- **C.17 - Yield as of Reporting Date:** 4.3200%
- **C.11 - Maturity Date (WAM):** 2023-01-31
- **C.12 - Maturity Date (WAL):** 2023-01-31
- **C.13 - Final Legal Maturity Date:** 2023-01-31
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? Yes, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

**C.15.a - Guarantor Details:**

- **Identity of Guarantor:** NOVARTIS AG

- **Amount Provided:** 1.0000

### Security 14: PACCAR Financial Corp.

- **C.1 - Title:** PACCAR Financial Corp. 4.307
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 69372BNC0, C.4 - ISIN: US69372BNC09, C.3 - LEI: PH3S12DWZBHHQKVYZ297
- **C.18 - Value (incl. sponsor support):** $19968713.40
- **C.18.a - Value (excl. sponsor support):** $19968713.40
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.3100%
- **C.11 - Maturity Date (WAM):** 2023-01-12
- **C.12 - Maturity Date (WAL):** 2023-01-12
- **C.13 - Final Legal Maturity Date:** 2023-01-12
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? Yes, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

**C.15.a - Guarantor Details:**

- **Identity of Guarantor:** PACCAR INC

- **Amount Provided:** 1.0000

### Security 15: Province of Quebec Canada

- **C.1 - Title:** Province of Quebec Canada 4.286
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 74800KNB4, C.4 - ISIN: US74800KNB43, C.3 - LEI: 549300WN65YFEQH74Y36
- **C.18 - Value (incl. sponsor support):** $19971413.40
- **C.18.a - Value (excl. sponsor support):** $19971413.40
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.2900%
- **C.11 - Maturity Date (WAM):** 2023-01-11
- **C.12 - Maturity Date (WAL):** 2023-01-11
- **C.13 - Final Legal Maturity Date:** 2023-01-11
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

### Security 16: Rockwell Automation, Inc.

- **C.1 - Title:** Rockwell Automation, Inc. 4.353
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 7743E3N44, C.4 - ISIN: US7743E3N447, C.3 - LEI: VH3R4HHBHH12O0EXZJ88
- **C.18 - Value (incl. sponsor support):** $19987794.40
- **C.18.a - Value (excl. sponsor support):** $19987794.40
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.3500%
- **C.11 - Maturity Date (WAM):** 2023-01-04
- **C.12 - Maturity Date (WAL):** 2023-01-04
- **C.13 - Final Legal Maturity Date:** 2023-01-04
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 17: Stanley Black & Decker, Inc.

- **C.1 - Title:** Stanley Black & Decker, Inc. 4.303
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 85462DN41, C.4 - ISIN: US85462DN411, C.3 - LEI: 549300DJ09SMTO561131
- **C.18 - Value (incl. sponsor support):** $19987961.20
- **C.18.a - Value (excl. sponsor support):** $19987961.20
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.3000%
- **C.11 - Maturity Date (WAM):** 2023-01-04
- **C.12 - Maturity Date (WAL):** 2023-01-04
- **C.13 - Final Legal Maturity Date:** 2023-01-04
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 18: TotalEnergies Capital Canada Ltd.

- **C.1 - Title:** TotalEnergies Capital Canada Ltd. 4.310
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 89153QNH9, C.4 - ISIN: US89153QNH91, C.3 - LEI: 5299005IX98ZZ9LSGK46
- **C.18 - Value (incl. sponsor support):** $19955910.00
- **C.18.a - Value (excl. sponsor support):** $19955910.00
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0800%
- **C.17 - Yield as of Reporting Date:** 4.3100%
- **C.11 - Maturity Date (WAM):** 2023-01-17
- **C.12 - Maturity Date (WAL):** 2023-01-17
- **C.13 - Final Legal Maturity Date:** 2023-01-17
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? Yes, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

**C.15.a - Guarantor Details:**

- **Identity of Guarantor:** TOTALENERGIES SE

- **Amount Provided:** 1.0000

### Security 19: Toyota Motor Credit Corp.

- **C.1 - Title:** Toyota Motor Credit Corp. 4.314
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 89233HNS9, C.4 - ISIN: US89233HNS93, C.3 - LEI: Z2VZBHUMB7PWWJ63I008
- **C.18 - Value (incl. sponsor support):** $19934960.00
- **C.18.a - Value (excl. sponsor support):** $19934960.00
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0800%
- **C.17 - Yield as of Reporting Date:** 4.3100%
- **C.11 - Maturity Date (WAM):** 2023-01-26
- **C.12 - Maturity Date (WAL):** 2023-01-26
- **C.13 - Final Legal Maturity Date:** 2023-01-26
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? No, C.23 Categorized at Level 3? No

### Security 20: Unilever Capital Corp.

- **C.1 - Title:** Unilever Capital Corp. 4.255
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 90477EN91, C.4 - ISIN: US90477EN915, C.3 - LEI: MYF1DAS6G5WY7PRWCU78
- **C.18 - Value (incl. sponsor support):** $19976116.60
- **C.18.a - Value (excl. sponsor support):** $19976116.60
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.2600%
- **C.11 - Maturity Date (WAM):** 2023-01-09
- **C.12 - Maturity Date (WAL):** 2023-01-09
- **C.13 - Final Legal Maturity Date:** 2023-01-09
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? Yes, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

**C.15.a - Guarantor Details:**

- **Identity of Guarantor:** UNILEVER PLC, USA

- **Amount Provided:** 1.0000

### Security 21: UnitedHealth Group, Inc.

- **C.1 - Title:** UnitedHealth Group, Inc. 4.282
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 91058UN33, C.4 - ISIN: US91058UN330, C.3 - LEI: 549300GHBMY8T5GXDE41
- **C.18 - Value (incl. sponsor support):** $19990364.40
- **C.18.a - Value (excl. sponsor support):** $19990364.40
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.2800%
- **C.11 - Maturity Date (WAM):** 2023-01-03
- **C.12 - Maturity Date (WAL):** 2023-01-03
- **C.13 - Final Legal Maturity Date:** 2023-01-03
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 22: Wisconsin Electric Power Co.

- **C.1 - Title:** Wisconsin Electric Power Co. 4.523
- **C.6 - Investment Category:** Non-Financial Company Commercial Paper
- **Identifiers:** C.3 - CUSIP: 97665SN55, C.4 - ISIN: US97665SN553, C.3 - LEI: AENKIFMULUAWOUU8Q584
- **C.18 - Value (incl. sponsor support):** $19985243.40
- **C.18.a - Value (excl. sponsor support):** $19985243.40
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.0900%
- **C.17 - Yield as of Reporting Date:** 4.5200%
- **C.11 - Maturity Date (WAM):** 2023-01-05
- **C.12 - Maturity Date (WAL):** 2023-01-05
- **C.13 - Final Legal Maturity Date:** 2023-01-05
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 23: U.S. Treasury Bills

- **C.1 - Title:** U.S. Treasury Bills 3.635
- **C.6 - Investment Category:** U.S. Treasury Debt
- **Identifiers:** C.3 - CUSIP: 912796ZK8, C.4 - ISIN: US912796ZK84, C.3 - LEI: 254900HROIFWPRGM1V77
- **C.18 - Value (incl. sponsor support):** $22334002.53
- **C.18.a - Value (excl. sponsor support):** $22334002.53
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 4.5700%
- **C.17 - Yield as of Reporting Date:** 3.6400%
- **C.11 - Maturity Date (WAM):** 2023-01-17
- **C.12 - Maturity Date (WAL):** 2023-01-17
- **C.13 - Final Legal Maturity Date:** 2023-01-17
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 24: U.S. Treasury Bills

- **C.1 - Title:** U.S. Treasury Bills 3.613
- **C.6 - Investment Category:** U.S. Treasury Debt
- **Identifiers:** C.3 - CUSIP: 912796ZL6, C.4 - ISIN: US912796ZL67, C.3 - LEI: 254900HROIFWPRGM1V77
- **C.18 - Value (incl. sponsor support):** $1995519.12
- **C.18.a - Value (excl. sponsor support):** $1995519.12
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 0.4100%
- **C.17 - Yield as of Reporting Date:** 3.6100%
- **C.11 - Maturity Date (WAM):** 2023-01-24
- **C.12 - Maturity Date (WAL):** 2023-01-24
- **C.13 - Final Legal Maturity Date:** 2023-01-24
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 25: RBC Capital Markets LLC

- **C.1 - Title:** RBC Capital Markets LLC 4.25
- **C.6 - Investment Category:** U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash
- **Identifiers:** C.3 - CUSIP: ZS1GP57, C.3 - LEI: 549300LCO2FLSSVFFR64, CIK: 0000895502
- **C.18 - Value (incl. sponsor support):** $5363000.00
- **C.18.a - Value (excl. sponsor support):** $5363000.00
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 1.1000%
- **C.17 - Yield as of Reporting Date:** 4.2500%
- **C.11 - Maturity Date (WAM):** 2023-01-03
- **C.12 - Maturity Date (WAL):** 2023-01-03
- **C.13 - Final Legal Maturity Date:** 2023-01-03
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 26: TD Securities, Inc.

- **C.1 - Title:** TD Securities, Inc. 4.27
- **C.6 - Investment Category:** U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash
- **Identifiers:** C.3 - CUSIP: ZS1GP56, CIK: 0000803012
- **C.18 - Value (incl. sponsor support):** $25000000.00
- **C.18.a - Value (excl. sponsor support):** $25000000.00
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 5.1100%
- **C.17 - Yield as of Reporting Date:** 4.2700%
- **C.11 - Maturity Date (WAM):** 2023-01-03
- **C.12 - Maturity Date (WAL):** 2023-01-03
- **C.13 - Final Legal Maturity Date:** 2023-01-03
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

## N-MFP: Signatures

**Registrant:** The MainStay Funds

**Date:** 2023-01-05

**By:** /s/Jack Benintende

**Name of Signing Officer:** Jack Benintende

**Title of Signing Officer:** Treasurer