# EDGAR Filing Document

**Accession Number:** 0000822632
**File Stem:** 0001752724-23-029956
**Filing Date:** 2023-2
**Character Count:** 23459
**Document Hash:** eade6daa61cb6a7875292912e0a591df
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-029956.hdr.sgml**: 20230221

**ACCESSION NUMBER**: 0001752724-23-029956

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230221

**DATE AS OF CHANGE**: 20230221

**PERIOD START**: 20221231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WILLIAM BLAIR FUNDS
- **CENTRAL INDEX KEY:** 0000822632
- **IRS NUMBER:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-05344
- **FILM NUMBER:** 23645625

**BUSINESS ADDRESS:**
- **STREET 1:** 150 NORTH RIVERSIDE PLAZA
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606
- **BUSINESS PHONE:** 3123648000

**MAIL ADDRESS:**
- **STREET 1:** 150 NORTH RIVERSIDE PLAZA
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WILLIAM BLAIR MUTUAL FUNDS INC
- **DATE OF NAME CHANGE:** 19960112

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BLAIR WILLIAM READY RESERVES INC
- **DATE OF NAME CHANGE:** 19920316

## Series and Classes Contracts Data

### William Blair Mid Cap Value Fund (Series ID: S000075391)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000234386 | Class I      | WVMIX           |
| C000234387 | Class R6     | WVMRX           |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** WILLIAM BLAIR FUNDS

- **b. Investment Company Act file number:** 811-05344

- **c. CIK number of Registrant:** 0000822632

- **d. LEI of Registrant:** SNQR0U5FDV8EZZX4W051

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

  - **Street Address 1:** 150 NORTH RIVERSIDE PLAZA

  - **City:** CHICAGO

  - **State:** IL

  - **Foreign country:** US

  - **Zip / Postal Code:** 60606

  - **Telephone number:** 312-364-8000

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

- **a. Name of Series:** William Blair Mid Cap Value Fund

- **b. EDGAR series identifier (if any):** S000075391

- **c. LEI of Series:** 549300HYRECRUSYHD642

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

- **a. Date of fiscal year-end:** 2022-12-31

- **b. Date as of which information is reported:** 2022-12-31

**Item A.4. Final filing**

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

### Fund Information

**Total Assets:** $1538383.11

**Total Liabilities:** $31636.73

**Net Assets:** $1506746.38

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000234386 | 10.35%               | 7.17%                | -4.36%               |
| Class ID C000234387 | 10.35%               | 7.17%                | -4.23%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-4273.28                | $140514.47                                 |
| Month 2  | $-2116.96                | $105953.19                                 |
| Month 3  | $-7347.18                | $-63881.78                                 |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Jabil Inc                                 | Jabil Inc                                 | CUSIP: 466313103<br>LEI: 5493000CGCQY2OQU7669 | Long             | EC               | CORP              | US        |       433 | NS      | $29530.60     | 1.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Warner Bros Discovery Inc                 | Warner Bros Discovery Inc                 | CUSIP: 934423104<br>LEI: 5493006ZCRFWKF6B1K26 | Long             | EC               | CORP              | US        |      1423 | NS      | $13490.04     | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Comerica Inc                              | Comerica Inc                              | CUSIP: 200340107<br>LEI: I9Q57JVPWHHZ3ZGBW498 | Long             | EC               | CORP              | US        |       396 | NS      | $26472.60     | 1.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Viatris Inc                               | Viatris Inc                               | CUSIP: 92556V106<br>LEI: 254900ZZTSW7NL773X71 | Long             | EC               | CORP              | US        |      2135 | NS      | $23762.55     | 1.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Highwoods Properties Inc                  | Highwoods Properties Inc                  | CUSIP: 431284108<br>LEI: ZIIGTYKL9T0X3HLTDX53 | Long             | EC               |  | US        |       991 | NS      | $27728.18     | 1.84%             |  |  |  | No            |                  1 | On Loan: No      |
| Molson Coors Beverage Co                  | Molson Coors Beverage Co                  | CUSIP: 60871R209<br>LEI: 54930073LBBH6ZCBE225 | Long             | EC               | CORP              | US        |       624 | NS      | $32148.48     | 2.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Check Point Software Technologies Ltd     | Check Point Software Technologies Ltd     | CUSIP: 000000000<br>LEI: 2549003ZVBH73EPNS513 | Long             | EC               | CORP              | IL        |       222 | NS      | $28007.52     | 1.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Cognizant Technology Solutions Corp       | Cognizant Technology Solutions Corp       | CUSIP: 192446102<br>LEI: 5493006IEVQEFQO40L83 | Long             | EC               | CORP              | US        |       378 | NS      | $21617.82     | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Arch Capital Group Ltd                    | Arch Capital Group Ltd                    | CUSIP: 000000000<br>LEI: 549300AYR4P8AFKDCE43 | Long             | EC               | CORP              | BM        |       560 | NS      | $35156.80     | 2.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Snap-on Inc                               | Snap-on Inc                               | CUSIP: 833034101<br>LEI: HHWAT5TDOYZMM26KKQ73 | Long             | EC               | CORP              | US        |       142 | NS      | $32445.58     | 2.15%             |  |  |  | No            |                  1 | On Loan: No      |
| PPG Industries Inc                        | PPG Industries Inc                        | CUSIP: 693506107<br>LEI: 549300BKPEP01R3V6C59 | Long             | EC               | CORP              | US        |       216 | NS      | $27159.84     | 1.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Invesco Ltd                               | Invesco Ltd                               | CUSIP: 000000000<br>LEI: ECPGFXU8A2SHKVVGJI15 | Long             | EC               | CORP              | BM        |      1719 | NS      | $30924.81     | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| AGCO Corp                                 | AGCO Corp                                 | CUSIP: 001084102<br>LEI: LYOM0B2GCF1JWXK5ZG04 | Long             | EC               | CORP              | US        |       260 | NS      | $36059.40     | 2.39%             |  |  |  | No            |                  1 | On Loan: No      |
| PPL Corp                                  | PPL Corp                                  | CUSIP: 69351T106<br>LEI: 9N3UAJSNOUXFKQLF3V18 | Long             | EC               | CORP              | US        |       997 | NS      | $29132.34     | 1.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Huntington Bancshares Inc/OH              | Huntington Bancshares Inc/OH              | CUSIP: 446150104<br>LEI: 549300XTVCVV9I7B5T19 | Long             | EC               | CORP              | US        |      1607 | NS      | $22658.70     | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Coterra Energy Inc                        | Coterra Energy Inc                        | CUSIP: 127097103<br>LEI: FCNMH6O7VWU7LHXMK351 | Long             | EC               | CORP              | US        |       889 | NS      | $21842.73     | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Centene Corp                              | Centene Corp                              | CUSIP: 15135B101<br>LEI: 549300Z7JJ4TQSQGT333 | Long             | EC               | CORP              | US        |       296 | NS      | $24274.96     | 1.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Synovus Financial Corp                    | Synovus Financial Corp                    | CUSIP: 87161C501<br>LEI: 549300EIUS8UN5JTLE54 | Long             | EC               | CORP              | US        |       679 | NS      | $25496.45     | 1.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Phillips 66                               | Phillips 66                               | CUSIP: 718546104<br>LEI: 5493005JBO5YSIGK1814 | Long             | EC               | CORP              | US        |       152 | NS      | $15820.16     | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Hewlett Packard Enterprise Co             | Hewlett Packard Enterprise Co             | CUSIP: 42824C109<br>LEI: 549300BX44RGX6ANDV88 | Long             | EC               | CORP              | US        |      1203 | NS      | $19199.88     | 1.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Crown Holdings Inc                        | Crown Holdings Inc                        | CUSIP: 228368106<br>LEI: NYLWZIOY8PUNIT4JOE22 | Long             | EC               | CORP              | US        |       357 | NS      | $29348.97     | 1.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Westlake Corp                             | Westlake Corp                             | CUSIP: 960413102<br>LEI: GOXNEVUM0LL78B1OS344 | Long             | EC               | CORP              | US        |       231 | NS      | $23686.74     | 1.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Toll Brothers Inc                         | Toll Brothers Inc                         | CUSIP: 889478103<br>LEI: 529900JB6IS9MSZGVR44 | Long             | EC               | CORP              | US        |       592 | NS      | $29552.64     | 1.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Ralph Lauren Corp                         | Ralph Lauren Corp                         | CUSIP: 751212101<br>LEI: HO1QNWM0IXBZ0QSMMO20 | Long             | EC               | CORP              | US        |       275 | NS      | $29059.25     | 1.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Sealed Air Corp                           | Sealed Air Corp                           | CUSIP: 81211K100<br>LEI: Q0M0CZB4YN6JZ65WXI09 | Long             | EC               | CORP              | US        |        93 | NS      | $4638.84      | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Tyson Foods Inc                           | Tyson Foods Inc                           | CUSIP: 902494103<br>LEI: WD6L6041MNRW1JE49D58 | Long             | EC               | CORP              | US        |       387 | NS      | $24090.75     | 1.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Ingredion Inc                             | Ingredion Inc                             | CUSIP: 457187102<br>LEI: PKSTQ48QDN0XSVS7YK88 | Long             | EC               | CORP              | US        |       318 | NS      | $31141.74     | 2.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Regal Rexnord Corp                        | Regal Rexnord Corp                        | CUSIP: 758750103<br>LEI: QH78R09VCJGQKPBPYU33 | Long             | EC               | CORP              | US        |        93 | NS      | $11158.14     | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Willis Towers Watson PLC                  | Willis Towers Watson PLC                  | CUSIP: 000000000<br>LEI: 549300WHC56FF48KL350 | Long             | EC               | CORP              | IE        |       140 | NS      | $34241.20     | 2.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Entergy Corp                              | Entergy Corp                              | CUSIP: 29364G103<br>LEI: 4XM3TW50JULSLG8BNC79 | Long             | EC               | CORP              | US        |       290 | NS      | $32625.00     | 2.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Huntsman Corp                             | Huntsman Corp                             | CUSIP: 447011107<br>LEI: 5299000V56320A7RIQ67 | Long             | EC               | CORP              | US        |      1044 | NS      | $28689.12     | 1.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Host Hotels & Resorts Inc                 | Host Hotels & Resorts Inc                 | CUSIP: 44107P104<br>LEI: N6EL63S0K3PB1YFTDI24 | Long             | EC               |  | US        |      1772 | NS      | $28440.60     | 1.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Flowserve Corp                            | Flowserve Corp                            | CUSIP: 34354P105<br>LEI: 6Y0GK87T6V7NJKZJVM41 | Long             | EC               | CORP              | US        |       623 | NS      | $19113.64     | 1.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Brunswick Corp/DE                         | Brunswick Corp/DE                         | CUSIP: 117043109<br>LEI: YM4O38W15AX4YLLQKU27 | Long             | EC               | CORP              | US        |       304 | NS      | $21912.32     | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Alaska Air Group Inc                      | Alaska Air Group Inc                      | CUSIP: 011659109<br>LEI: 529900G48RT4KWLC6C27 | Long             | EC               | CORP              | US        |       625 | NS      | $26837.50     | 1.78%             |  |  |  | No            |                  1 | On Loan: No      |
| DXC Technology Co                         | DXC Technology Co                         | CUSIP: 23355L106<br>LEI: 549300DOVZ3EDJB7O259 | Long             | EC               | CORP              | US        |       926 | NS      | $24539.00     | 1.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Knight-Swift Transportation Holdings Inc  | Knight-Swift Transportation Holdings Inc  | CUSIP: 499049104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |       626 | NS      | $32808.66     | 2.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Camden Property Trust                     | Camden Property Trust                     | CUSIP: 133131102<br>LEI: 5493002MYX22OHYJBD89 | Long             | EC               |  | US        |       221 | NS      | $24725.48     | 1.64%             |  |  |  | No            |                  1 | On Loan: No      |
| East West Bancorp Inc                     | East West Bancorp Inc                     | CUSIP: 27579R104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |       390 | NS      | $25701.00     | 1.71%             |  |  |  | No            |                  1 | On Loan: No      |
| SLM Corp                                  | SLM Corp                                  | CUSIP: 78442P106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      1608 | NS      | $26692.80     | 1.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Flex Ltd                                  | Flex Ltd                                  | CUSIP: 000000000<br>LEI: 549300EAQH74YHD07T53 | Long             | EC               | CORP              | SG        |      1225 | NS      | $26288.50     | 1.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Acuity Brands Inc                         | Acuity Brands Inc                         | CUSIP: 00508Y102<br>LEI: N/A                  | Long             | EC               | CORP              | US        |       160 | NS      | $26497.60     | 1.76%             |  |  |  | No            |                  1 | On Loan: No      |
| APA Corp                                  | APA Corp                                  | CUSIP: 03743Q108<br>LEI: 549300VCIWLRHYVSHC79 | Long             | EC               | CORP              | US        |       640 | NS      | $29875.20     | 1.98%             |  |  |  | No            |                  1 | On Loan: No      |
| F5 Inc                                    | F5 Inc                                    | CUSIP: 315616102<br>LEI: 54930015FPK9KT966303 | Long             | EC               | CORP              | US        |       186 | NS      | $26692.86     | 1.77%             |  |  |  | No            |                  1 | On Loan: No      |
| ITT Inc                                   | ITT Inc                                   | CUSIP: 45073V108<br>LEI: 549300KDSERHTJOXUS80 | Long             | EC               | CORP              | US        |       362 | NS      | $29358.20     | 1.95%             |  |  |  | No            |                  1 | On Loan: No      |
| KKR & Co Inc                              | KKR & Co Inc                              | CUSIP: 48251W104<br>LEI: 54930013V5I303TF9571 | Long             | EC               | CORP              | US        |       327 | NS      | $15179.34     | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| AmerisourceBergen Corp                    | AmerisourceBergen Corp                    | CUSIP: 03073E105<br>LEI: AI8GXW8LG5WK7E9UD086 | Long             | EC               | CORP              | US        |       134 | NS      | $22205.14     | 1.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Skyworks Solutions Inc                    | Skyworks Solutions Inc                    | CUSIP: 83088M102<br>LEI: 549300WZ3ORQ2BVKBD96 | Long             | EC               | CORP              | US        |       225 | NS      | $20504.25     | 1.36%             |  |  |  | No            |                  1 | On Loan: No      |
| LKQ Corp                                  | LKQ Corp                                  | CUSIP: 501889208<br>LEI: DS830JTTZQN6GK0I2E41 | Long             | EC               | CORP              | US        |       609 | NS      | $32526.69     | 2.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Laboratory Corp of America Holdings       | Laboratory Corp of America Holdings       | CUSIP: 50540R409<br>LEI: OZ7UA8IXAIFILY2VZH07 | Long             | EC               | CORP              | US        |        85 | NS      | $20015.80     | 1.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Hartford Financial Services Group Inc/The | Hartford Financial Services Group Inc/The | CUSIP: 416515104<br>LEI: IU7C3FTM7Y3BQM112U94 | Long             | EC               | CORP              | US        |       420 | NS      | $31848.60     | 2.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Diamondback Energy Inc                    | Diamondback Energy Inc                    | CUSIP: 25278X109<br>LEI: 549300R22LSX6OHWEN64 | Long             | EC               | CORP              | US        |       194 | NS      | $26535.32     | 1.76%             |  |  |  | No            |                  1 | On Loan: No      |
| MSC Industrial Direct Co Inc              | MSC Industrial Direct Co Inc              | CUSIP: 553530106<br>LEI: 0XVKH0LN6YGOWO2EGO17 | Long             | EC               | CORP              | US        |       343 | NS      | $28023.10     | 1.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Encompass Health Corp                     | Encompass Health Corp                     | CUSIP: 29261A100<br>LEI: 549300FVRPM9DRQZRG64 | Long             | EC               | CORP              | US        |       431 | NS      | $25778.11     | 1.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Whirlpool Corp                            | Whirlpool Corp                            | CUSIP: 963320106<br>LEI: WHENKOULSSK7WUM60H03 | Long             | EC               | CORP              | US        |       178 | NS      | $25179.88     | 1.67%             |  |  |  | No            |                  1 | On Loan: No      |
| Henry Schein Inc                          | Henry Schein Inc                          | CUSIP: 806407102<br>LEI: VGO3WGL8H45T73F4RR92 | Long             | EC               | CORP              | US        |       380 | NS      | $30350.60     | 2.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Hologic Inc                               | Hologic Inc                               | CUSIP: 436440101<br>LEI: 549300DYP6F5ZJL0LB74 | Long             | EC               | CORP              | US        |       277 | NS      | $20722.37     | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Mohawk Industries Inc                     | Mohawk Industries Inc                     | CUSIP: 608190104<br>LEI: 549300JI1115MG3Q6322 | Long             | EC               | CORP              | US        |       202 | NS      | $20648.44     | 1.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Timken Co/The                             | Timken Co/The                             | CUSIP: 887389104<br>LEI: B0I35MLPFXZSE70ASS73 | Long             | EC               | CORP              | US        |       444 | NS      | $31377.48     | 2.08%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2023-01-17

**Name of Applicant:** WILLIAM BLAIR FUNDS

**Signature:** John Raczek

**Name of Signer:** John Raczek

**Title:** Principal Financial Officer