# GW&K Investment Management, LLC

> GW&K Investment Management, LLC is an SEC-registered investment advisory firm in Boston, MA, registered since 2002, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated March 26, 2026.

- CRD: 121942
- Filed as: GW&K INVESTMENT MANAGEMENT, LLC
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Boston, MA
- Filing period: October 2026
- Form ADV filing dated: March 26, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/121942
- AdvisorCensus page: https://advisorcensus.com/firm/gw-and-k-investment-management-llc-boston-ma-121942

## Quick answers

**How is GW&K Investment Management, LLC compensated?**
On its Form ADV (Item 5.E, October 2026), GW&K Investment Management, LLC reports these compensation arrangements: a percentage of assets under its management; fixed fees (other than subscription fees); performance-based fees.

**Where is GW&K Investment Management, LLC located?**
GW&K Investment Management, LLC's principal office is in Boston, MA, according to its Form ADV.

**Is GW&K Investment Management, LLC registered with the SEC or a state?**
GW&K Investment Management, LLC is an SEC-registered investment advisory firm, registered since 2002. Status as filed: Approved. CRD 121942.

**How much does GW&K Investment Management, LLC manage?**
GW&K Investment Management, LLC reports $52,782,948,184 in regulatory assets under management in its Form ADV filing dated March 26, 2026 (100% discretionary).

**How have GW&K Investment Management, LLC's assets and staff changed since 2021?**
In the Form ADV data for GW&K Investment Management, LLC: Regulatory assets under management: $51,431,909,403 in the October 2021 data and $52,782,948,184 in the October 2026 data, up 3%. Total employees: 155 in October 2021 and 177 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does GW&K Investment Management, LLC serve?**
By number of clients on Form ADV Item 5.D: high net worth individuals (47,749); corporations or other businesses not listed above (776); pension and profit sharing plans (but not the plan participants or government pension plans) (123).

**Which custodians does GW&K Investment Management, LLC use?**
GW&K Investment Management, LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co., Inc. and Merrill Lynch, Pierce, Fenner & Smith Incorporated as custodians holding 10% or more of its separately managed account assets.

**Does GW&K Investment Management, LLC report any disciplinary disclosures?**
Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/121942

**What changed in GW&K Investment Management, LLC's recent Form ADV filings?**
In the April 2026 filing data: Employees performing advisory functions went from 68 to 63. Updated its list of owners and control persons (Schedule A).

## From the Form ADV filing

### Compensation (Item 5.E)
- A percentage of assets under your management
- Fixed fees (other than subscription fees)
- Performance-based fees

### Custodians (Schedule D, Section 5.K(3))
- Charles Schwab & Co., Inc.
- Merrill Lynch, Pierce, Fenner & Smith Incorporated

Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.

### Regulatory assets under management (Item 5.F)
- Total: $52,782,948,184
- Discretionary: $52,782,948,184
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Individuals (other than high net worth individuals) | 0 | $0 |
| High net worth individuals | 47,749 | $40,390,650,819 |
| Banking or thrift institutions | 17 | $312,237,818 |
| Investment companies | 17 | $4,932,075,975 |
| Business development companies | 0 | $0 |
| Pooled investment vehicles (other than investment companies and business development companies) | 14 | $3,004,683,173 |
| Pension and profit sharing plans (but not the plan participants or government pension plans) | 123 | $707,676,146 |
| Charitable organizations | 0 | $0 |
| State or municipal government entities (including government pension plans) | 13 | $294,311,138 |
| Other investment advisers | 0 | $0 |
| Insurance companies | 0 | $0 |
| Sovereign wealth funds and foreign official institutions | 1 | $20,365,707 |
| Corporations or other businesses not listed above | 776 | $3,120,947,408 |
| Other | 0 | $0 |

### Advisory services (Item 5.G)
- Financial planning services
- Portfolio management for individuals and/or small businesses
- Portfolio management for investment companies (and business development companies)
- Portfolio management for pooled investment vehicles (other than investment companies)
- Portfolio management for businesses (other than small businesses) or institutional clients
- Selection of other advisers (including private fund managers)

### Firm details
- Registered since: 2002 (23 years)
- Employees: 177 total, 63 performing advisory functions
- Wrap fee program participation: Yes
- States registered or notice-filed: AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PR, RI, SC, SD, TN, TX, UT, VA, VI, VT, WA, WI, WV, WY
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Websites listed on Form ADV (Item 1.I)
- gwkinvest.com
- LinkedIn @gw&k-investment-management

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $51,431,909,403 | 155 | March 26, 2021 |
| October 2022 | $54,720,660,219 | 175 | March 31, 2022 |
| October 2023 | $46,803,858,104 | 184 | March 29, 2023 |
| October 2024 | $50,695,320,951 | 181 | March 27, 2024 |
| October 2025 | $52,933,746,966 | 180 | March 27, 2025 |
| October 2026 | $52,782,948,184 | 177 | March 26, 2026 |

Regulatory assets under management: $51,431,909,403 in the October 2021 data and $52,782,948,184 in the October 2026 data, up 3%.
Total employees: 155 in October 2021 and 177 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- Employees performing advisory functions went from 68 to 63.
- Updated its list of owners and control persons (Schedule A).

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. GW&K Investment Management, LLC (CRD 121942): Form ADV filing data as of October 2026.