AdvisorCensus / Financial advisors / Massachusetts / Boston / S & Co., Inc.
S & Co., Inc.
Filed as S & CO., INC.
S & Co., Inc. is an SEC-registered investment advisory firm in Boston, MA, registered since 1988, reporting $1 billion to $5 billion in regulatory assets under management in its Form ADV filing dated March 31, 2026.
Quick answers
From the filingHow is S & Co., Inc. compensated?
On its Form ADV (Item 5.E, October 2026), S & Co., Inc. reports these compensation arrangements: a percentage of assets under its management. The amounts are in Item 5 of its Form ADV Part 2A brochure.
Where is S & Co., Inc. located?
S & Co., Inc.'s principal office is in Boston, MA, according to its Form ADV.
Is S & Co., Inc. registered with the SEC or a state?
S & Co., Inc. is an SEC-registered investment advisory firm, registered since 1988. Status as filed: Approved. CRD 110026.
How much does S & Co., Inc. manage?
S & Co., Inc. reports $2,456,013,267 in regulatory assets under management in its Form ADV filing dated March 31, 2026 (100% discretionary).
How have S & Co., Inc.'s assets and staff changed since 2021?
In the Form ADV data for S & Co., Inc.: Regulatory assets under management: $1,846,915,144 in the October 2021 data and $2,456,013,267 in the October 2026 data, up 33%. Total employees: 15 in October 2021 and 15 in October 2026. Assets under management move with markets as well as with clients coming and going.
What types of clients does S & Co., Inc. serve?
By number of clients on Form ADV Item 5.D: high net worth individuals (302); individuals (other than high net worth individuals) (58); charitable organizations (17).
Which custodians does S & Co., Inc. use?
S & Co., Inc.'s most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Fiduciary Trust Company as a custodian holding 10% or more of its separately managed account assets.
Does S & Co., Inc. 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/110026
What changed in S & Co., Inc.'s recent Form ADV filings?
In the January 2026 filing data: No longer registered or notice-filed in NC, RI.
From the Form ADV filing
Every figure below is as the firm filed it with regulators, as of October 2026.
How the firm is compensated
Item 5.E- A percentage of assets under your management
Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ
Fees and minimums
Form ADV Part 2ASee the firm's brochure (dated March 31, 2026) for its fees and any account minimum, on the SEC's IAPD site.
Regulatory assets under management
Item 5.F$2,456,013,267 as of October 2026, filing dated March 31, 2026.
A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means
Who the firm serves
Item 5.DA firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.
Advisory services
Item 5.G- Portfolio management for individuals and/or small businesses
- Portfolio management for pooled investment vehicles (other than investment companies)
- Selection of other advisers (including private fund managers)
- Other
Registration and firm details
Items 1, 2, 5- Registration
- SEC-registered investment adviser. Status as filed: Approved.
- Registered since
- 1988 (37 years)
- Employees
- Total: 15. Performing investment advisory functions: 6.
- Wrap fee program participation
- No.
- Custodians (Schedule D, Section 5.K(3))
-
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.
- States registered or notice-filed
-
11 states or jurisdictions
SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration
Disclosures
Item 11None Reports no disclosure items on Form ADV Item 11. View on IAPD.
Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures
Assets and staff over time
Items 5.A, 5.F| Data period | Assets under management | Employees | Filing dated |
|---|---|---|---|
| October 2026 | $2,456,013,267 | 15 | March 31, 2026 |
| October 2025 | $2,278,333,658 | 15 | March 31, 2025 |
| October 2024 | $2,114,986,938 | 14 | March 29, 2024 |
| October 2023 | $2,031,059,688 | 15 | March 31, 2023 |
| October 2022 | $2,208,513,838 | 15 | March 31, 2022 |
| October 2021 | $1,846,915,144 | 15 | March 30, 2021 |
Regulatory assets under management: $1,846,915,144 in the October 2021 data and $2,456,013,267 in the October 2026 data, up 33%.
Total employees: 15 in October 2021 and 15 in October 2026.
As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.
Changes in the filing
Last 12 months- January 2026
- No longer registered or notice-filed in NC, RI.
Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.
Websites listed on Form ADV
Item 1.INot reported.
Source: Form ADV, as of October 2026. Values appear as filed; a value the firm did not report is shown as "Not reported."
Cite this page
AdvisorCensus. S & Co., Inc. (CRD 110026): Form ADV filing data as of October 2026. https://advisorcensus.com/firm/s-and-co-inc-boston-ma-110026