SourcingSourcing

ROCKINGSTONE ADVISORS LLC

C44
CRD 149592·SEC 801-77696·GREAT BARRINGTON, MA
AUM
$280.1M
$100M-$500M
Est. Revenue
$2.8M
@ 1% on AUM
Est. EBITDA
$840K
@ 30% margin
Est. Deal Value
$6.7M
@ 8× EBITDA

Identity

Registrations & legal identity

Legal name
ROCKINGSTONE ADVISORS LLC
CRD
149592
SEC file #
801-77696
EIN
264024853
DBA names
Rockingstone Advisors

Economics

AUM
$280.1M
AUM band
$100M-$500M
AUM trajectory
'20'26
$92.5M → $280.1M▲ +203%
Client mix
Individuals High Net Worth54
Individuals Other7

Operations

Employees (total)
3
Advisory staff (per ADV)
2
Advisory staff (5-yr trend)
'20'26
2 advisors → 2 advisors▬ 0%
Primary office
GREAT BARRINGTON MA
Branches
—

Custodian & Brokerage

Primary custodian
Charles Schwablow confidence
Services offered
Portfolio mgmt — individualsPortfolio mgmt — businessesSelection of other advisers
Fee basis
% of AUM

Filings

Latest ADV filing
03/19/2026
ADV-W filed at
—
Website
rockingstoneadvisors.com

Compliance

Disclosures (firm)
0
Trademark
—
Additional signalsExpand ▾

Ownership & succession ★

Who controls the firm + pre-computed succession flags

Top Owner Name
SAKAKEENY, BRANDT, AUGUSTUS
Top Owner Pct
62.5
Top Owner Entity Kind
I
Owner Count
3
Control Persons
SAKAKEENY, BRANDT, AUGUSTUS
SAKAKEENY, MARGARET, C
Solo Advisor Indicator
No
Succession Risk Solo Owner
No
Is Parent Owned Subsidiary
No

Availability / M&A ★

Already-acquired = skip; deal comps

Adv W Filed
No

Web presence ★

Stale website = winding down

Web Signal Quality
ok
Rdap Domain
ROCKINGSTONEADVISORS.COM
Rdap Domain Creation Date
2008-12-12T20:36:50Z
Rdap Firm Age Years
18
Rdap Firm Age Band
10-20y
Rdap Registrar
eNom, LLC

Retirement-plan book (Form 5500) ★

401(k)/plan business — cross-sell value

Retirement Plan Book
No

SEC EDGAR

Edgar Cik
0002027176
Edgar Registered
Yes
Edgar Filing Count
16
Edgar First Filing Date
2024-07-09
Edgar Last Filing Date
2026-04-09
Edgar 13f Count
14
Edgar 13f Latest AUM Estimate
Filing Date2026-04-09
Accession0002027176-26-000002

Compliance & brand

Firm Registration Status
active

All other collected signals (17)

Everything else we've pulled for this record, not yet curated into a section.

Adv W Recently Filed
No
Bc Firm Active Bc Count
0
Bc Firm Active IA Count
2
Bc Firm IAR Count
2
Custodian Candidates
Full
Charles Schwab6
Fidelity4
E*trade4
Edgar Addresses
Mailing
292 MAIN STREETSUITE 32GREAT BARRINGTON, MA 01230
Business
292 MAIN STREETSUITE 32GREAT BARRINGTON, MA 01230
Edgar EIN
264024853
Edgar Recent Filings
13F-HR2026-04-09 · 0002027176-26-000002
13F-HR2026-01-28 · 0002027176-26-000001
Firm Has Custody
No
Mailing Office Differs
No
Rdap Domain Expiration Date
2026-12-12T20:36:50Z
Rdap Domain Last Changed
2025-11-27T08:27:08Z
Rdap Nameservers
Ns1.pipedns.comNs2.pipedns.comNs3.pipedns.com
Rdap Secure Dns Enabled
No
Rdap Status
Active
Top Owner CRD
1709197
Trust Company Affiliate
No

People (3)

3
SAKAKEENY, BRANDT, AUGUSTUS
IAR · Direct Owner · 62.5%
1709197
SAKAKEENY, MARGARET, C
Direct Owner · 37.5%
5643079
KATZMAN, ERIC, RICHARD
IAR · Executive Officer · 2.5%
2300355