# Frontier Capital Management Co LLC

> Frontier Capital Management Co LLC is an SEC-registered investment advisory firm in Boston, MA, registered since 1981, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated September 1, 2026.

- CRD: 106274
- Filed as: FRONTIER CAPITAL MANAGEMENT CO LLC
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Boston, MA
- Filing period: October 2026
- Form ADV filing dated: September 1, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/106274
- AdvisorCensus page: https://advisorcensus.com/firm/frontier-capital-management-co-llc-boston-ma-106274

## Quick answers

**How is Frontier Capital Management Co LLC compensated?**
On its Form ADV (Item 5.E, October 2026), Frontier Capital Management Co LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees.

**Where is Frontier Capital Management Co LLC located?**
Frontier Capital Management Co LLC's principal office is in Boston, MA, according to its Form ADV.

**Is Frontier Capital Management Co LLC registered with the SEC or a state?**
Frontier Capital Management Co LLC is an SEC-registered investment advisory firm, registered since 1981. Status as filed: Approved. CRD 106274.

**How much does Frontier Capital Management Co LLC manage?**
Frontier Capital Management Co LLC reports $9,597,310,562 in regulatory assets under management in its Form ADV filing dated September 1, 2026 (100% discretionary).

**How have Frontier Capital Management Co LLC's assets and staff changed since 2021?**
In the Form ADV data for Frontier Capital Management Co LLC: Regulatory assets under management: $13,740,833,269 in the October 2021 data and $9,597,310,562 in the October 2026 data, down 30%. Total employees: 38 in October 2021 and 38 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Frontier Capital Management Co LLC serve?**
By number of clients on Form ADV Item 5.D: state or municipal government entities (including government pension plans) (13); pension and profit sharing plans (but not the plan participants or government pension plans) (9); pooled investment vehicles (other than investment companies and business development companies) (7).

**Which custodians does Frontier Capital Management Co LLC use?**
Frontier Capital Management Co LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Northern Trust Corporation, State Street Corporation and The Bank of New York Mellon Corporation as custodians holding 10% or more of its separately managed account assets.

**Does Frontier Capital Management Co 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/106274

**What changed in Frontier Capital Management Co LLC's recent Form ADV filings?**
In the April 2026 filing data: Employees performing advisory functions went from 20 to 19. Regulatory assets under management went from $10,722,524,618 to $9,597,310,562 (-10%). 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
- Performance-based fees

### Custodians (Schedule D, Section 5.K(3))
- Northern Trust Corporation
- State Street Corporation
- The Bank of New York Mellon Corporation

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: $9,597,310,562
- Discretionary: $9,597,310,562
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Individuals (other than high net worth individuals) | 0 | Not reported |
| High net worth individuals | 0 | Not reported |
| Banking or thrift institutions | 0 | Not reported |
| Investment companies | 5 | $2,472,760,437 |
| Business development companies | 0 | Not reported |
| Pooled investment vehicles (other than investment companies and business development companies) | 7 | $706,009,469 |
| Pension and profit sharing plans (but not the plan participants or government pension plans) | 9 | $1,644,848,161 |
| Charitable organizations | Fewer than 5 | $98,953,422 |
| State or municipal government entities (including government pension plans) | 13 | $3,932,556,015 |
| Other investment advisers | Fewer than 5 | $22,942,094 |
| Insurance companies | 0 | Not reported |
| Sovereign wealth funds and foreign official institutions | Fewer than 5 | $238,709,117 |
| Corporations or other businesses not listed above | Fewer than 5 | $480,531,847 |
| Other | 0 | Not reported |

### Advisory services (Item 5.G)
- 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

### Firm details
- Registered since: 1981 (45 years)
- Employees: 38 total, 19 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: AK, AL, AR, AZ, CA, 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, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Websites listed on Form ADV (Item 1.I)
- frontiercap.com
- LinkedIn @frontier-capital-management-co

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $13,740,833,269 | 38 | March 31, 2021 |
| October 2022 | $12,795,761,824 | 40 | March 30, 2022 |
| October 2023 | $9,292,365,423 | 40 | March 31, 2023 |
| October 2024 | $10,103,003,811 | 41 | March 28, 2024 |
| October 2025 | $10,722,524,618 | 39 | March 31, 2025 |
| October 2026 | $9,597,310,562 | 38 | September 1, 2026 |

Regulatory assets under management: $13,740,833,269 in the October 2021 data and $9,597,310,562 in the October 2026 data, down 30%.
Total employees: 38 in October 2021 and 38 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- Employees performing advisory functions went from 20 to 19.
- Regulatory assets under management went from $10,722,524,618 to $9,597,310,562 (-10%).
- Updated its list of owners and control persons (Schedule A).

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Frontier Capital Management Co LLC (CRD 106274): Form ADV filing data as of October 2026.