Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.

Firms / Prolog Ventures Hl II, LLC

Prolog Ventures Hl II, LLC

Institutional venture firmSt. Louis, MOprologventures.comSEC venture capital fund adviserone firm, 5 filing advisers

This firm files as 5 advisers on prologventures.com: Prolog Ventures Hl, LLC, Prolog Ventures II, LLC, Prolog Ventures Lcf, LLC, Prolog Ventures, LLC. Each keeps its own CRD, funds and filings; the grouping is the website each swore to on Form ADV and is recomputed every pass.

venture manager, reported GAV $56M across 1 vehicles

Importance
10
low
Active deployment
0
low
Emerging
0
low
Completeness
50
elevated
Freshness
100
high
Research priority
3
low
Identity and regulatory footprint
Headquarters
St. Louis, MOadviserinfo.sec.gov
Office address
7733 FORSYTH BLVD, SUITE 1100, St. Louis, MO, 63105adviserinfo.sec.gov
Business phone
314-743-2400adviserinfo.sec.gov
Website
HTTP://WWW.PROLOGVENTURES.COM
SEC adviser type
exempt reporting adviseradviserinfo.sec.gov
SEC exemption claimed
venture capital fund adviseradviserinfo.sec.govItem 2.B(1): advises solely venture capital funds
Latest Form ADV
Mar 30, 2026
Private funds reported
1 (1 venture capital funds)adviserinfo.sec.gov
Private fund gross assets
$2.8Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
business phone
314-743-2400adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
no observed deals yet
Stated (the firm’s website)
Sectors
not stated or not yet read
Stages
not stated or not yet read
Geography
not stated
Check size
not stated; DFX does not estimate checks from round sizes
Observed (from deals on record)
Stage at participation: no observed deals yet
Stage at first entry: no observed deals yet
Sectors: no observed deals yet
lead rate n/afollow-on rate n/anew logos, 12 months 0
Funds and vehicles
1 reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
Prolog Capital IV, L.P.Fund2013 form d first saleHarvest$55.8M
Apr 30, 2024
17$26.0MJul 24, 2013
GAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.
Investment team
2 current, 2 departed
Brian L Clevinger
Managing Director · since Feb 1, 2013
Partner
FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Ilya B Nykin
Managing Director · since Feb 1, 2013
Partner
FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
2 departed (kept with end dates)
Investments on record
0 edges, 0 companies, 0 partner-attributed
No investment on record yet. Edges arrive from the firm’s portfolio page, financing announcements, and Form D board seats.
Co-investors
0 relationships from shared deals, counted for the whole firm
No co-investor relationship yet: these are derived only from rounds and portfolio listings the graph has seen both investors on.
Limited partners
0 disclosed
No LP commitment on record. An LP edge needs a public disclosure with a quote: a pension report (see Limited partners for the plans read), a fund announcement naming the LP, or a Form ADV owner. The fund page carries the LP’s reported performance.
Timeline
4 dated events
  1. Mar 27, 2023
    Greg Johnson (Managing Director) no longer on Schedule A of Prolog Ventures Hl II, LLC
    Person leftPeopleInferenceGreg JohnsonSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
  2. Mar 29, 2016
    John Douglas Steuart (Managing Director) no longer on Schedule A of Prolog Ventures Hl II, LLC
    Person leftPeopleInferenceJohn Douglas SteuartSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
  3. Mar 19, 2014
    Prolog Ventures IV, LLC first filed Form ADV (ERA, venture capital fund adviser exemption)
    First SEC adviser filingOrganizationFactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
  4. Mar 19, 2014
    Prolog Capital IV, L.P. first reported on Form ADV by Prolog Ventures IV, LLC (Venture Capital Fund)
    Fund first reported on Form ADVFundsFactProlog Capital IV, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Classification history
  1. Sep 12, 2026
    Institutional venture firm (confirmed, 95%, cls-1)
    venture manager, reported GAV $56M across 1 vehicles
Evidence
44 observations from 3 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
Why admittedvc_exemption,vc_funds_reportedMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC exemption claimedventure_capital_fund_adviserMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC exemption claimedventure_capital_fund_adviserApr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
SEC adviser typeexempt_reporting_adviserMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC adviser typeexempt_reporting_adviserApr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
First Form ADV filing2014-03-19Apr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Adv history loadedadv-hist-1Sep 12, 2026FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Latest Form ADV filing2026-03-30Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Latest Form ADV filing2024-04-30Apr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
SEC statusERA - ActiveMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC status effective2014-03-19Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Venture share of reported funds1Apr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Business phone314-743-2400Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Business phone314-743-2400Apr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
HeadquartersSt. Louis, MOMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
HeadquartersSt. Louis, MOApr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Office address7733 FORSYTH BLVD, SUITE 1100, St. Louis, MO, 63105Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Office address7733 FORSYTH BLVD, SUITE 1100, St. Louis, MO, 63105Apr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Legal formLimited Liability CompanyMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Legal formLimited Liability CompanyApr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Private funds reported1Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Private funds reported1Apr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Private fund gross assets (reported)$2.8MMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Private fund gross assets (reported)$55.8MApr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Venture funds reported1Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Venture funds reported1Apr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
WebsiteHTTP://WWW.PROLOGVENTURES.COMMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
WebsiteHTTP://WWW.PROLOGVENTURES.COMApr 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Site titleOnward
“title tag”
Sep 18, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titleOnward
“title tag”
Sep 17, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titleOnward
“title tag”
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titleOnward
“title tag”
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)