Castle Island Ventures I-A, L.P.

Feeder or parallelmanaged by Castle Island Management, LLC· Delaware
Reported gross assets
$11.3M
Form ADV, Mar 31, 2026
UnknownFundraising status unknownADV: Venture Capital FundFeeder or parallel vehicle

A feeder, parallel or offshore vehicle of a main fund; its assets may overlap the main fund's.

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As of · the latest observation of this vehicle; each figure below carries its own filing date

5 additional placement agents

Every relationship, signal and contact on this record, with the source on each.

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What matters now

  1. -21%
    reported GAV

    Reported gross assets fell from $14.3M to $11.3M between the Form ADV filings of 29 Mar 2024 and 31 Mar 2026.

    The fund's assets as the adviser swears them, never its size or dry powder.

    Derivedtwo Form ADV Schedule D filingsFor LPs, secondaries buyersReporting →
Drawing the relationship network…
Amounts, each with its basis
Vintage
unknownno dated first sale or first report yet
Target
unknownnot announced
First close
unknownnever inferred from a Form D
Final close
unknownonly from an announcement or an LP disclosure
Announced size
unknown
Form D offering
indefinitewhat may be sold, not what was raised; file 021-319141, sworn by the adviser or filed under this vehicle
Form D sold
$0as of the filing of Aug 14, 2018
First sale
unknown
Reported GAV
$11.3Mon the Form ADV filed Mar 31, 2026; the fund's assets, never its size or dry powder
Owners (ADV)
16
Reported on ADV
Oct 12, 2018 to Mar 31, 2026
Fundraising evidence
Unknown
latest Form D 2018-08-14, older than 15 months (fr-1)
evidence dated Aug 14, 2018.
Lifecycle
Unknown
no vintage and no recent Form D
first sale: n/avintage year: n/aadv gav as of: Mar 31, 2026vintage basis: n/aform d sold: $0form d offering: n/aform d latest filed at: Aug 14, 2018
The fund's own reporting through time
8 Form ADV filings
FiledTypeGross asset value OwnersMin. investmentAdviser-ownedAudit
Oct 12, 2018Venture Capital Fund$2.1M
451%yes
Mar 25, 2019Venture Capital Fund$2.5M
461%yes
Mar 19, 2020Venture Capital Fund$3.0M
461%yes
Mar 11, 2021Venture Capital Fund$3.7M
461%yes
Mar 31, 2022Venture Capital Fund$10.3M
461%yes
Mar 29, 2023Venture Capital Fund$14.6M
183%yes
Mar 29, 2024Venture Capital Fund$14.3M
174%yes
Mar 31, 2026Venture Capital Fund$11.3M
164%
Principals and agents
1 principal on Form D, 0 placement agents
  • Castle Island GP I, LLC Promoter
Service providers
8 named on Form ADV Schedule D and Form D
Limited partners and their reported performance
0 public LP reports
No public LP has reported this vehicle. The LP tape is read from public pension disclosures (see Limited partners); a fund appears here only when an LP’s report names it.
Known LPs and allocators
0 relationships, public pensions and the allocator graph, each counted once
No allocator names this vehicle in a public disclosure DFX holds: pension reports, foundation 990-PF returns or endowment disclosures.
Investments attributed to this vehicle
0
No investment attributed to this vehicle. The firm’s investments sit on the firm; a fund gets one only when a source names the vehicle.
Timeline
3 events
  1. Mar 31, 2026
    Administrator changed: Juniper Square replaced ADURO ADVISORS, LLC, first reported on the Form ADV filed March 31, 2026 (previous filing March 29, 2025)
    Administrator changed Fact Form ADV
  2. Oct 12, 2018
    Castle Island Ventures I-A, L.P. first reported on Form ADV by Castle Island Management, LLC (Venture Capital Fund), GAV $2,100,000
    Fund first reported on Form ADV Fact Form ADV
  3. Aug 14, 2018
    Castle Island Ventures I-A, L.P. filed Form D: no sales yet (indefinite offering), Other Investment Fund
    Form D filed Fact Form D
Evidence
14 observations
Every observation on this vehicle
  • Entity type: Limited Partnership Aug 14, 2018 Fact Form D
  • Form D fund type: Other Investment Fund Aug 14, 2018 Fact Form D
  • Form D industry group: Pooled Investment Fund Aug 14, 2018 Fact Form D
  • Amendment: false Aug 14, 2018 Fact Form D
  • Incorporated: withinFiveYears Aug 14, 2018 Fact Form D
  • Jurisdiction: Delaware Aug 14, 2018 Fact Form D
  • Amount sold (Form D): $0 Aug 14, 2018 Fact Form D
  • Exemptions: 06b, 3C, 3C.1, 3C.7 Aug 14, 2018 Fact Form D
  • Indefinite offering: true Aug 14, 2018 Fact Form D
  • Investors (Form D): 0 Aug 14, 2018 Fact Form D
  • Minimum investment (Form D): 0 Aug 14, 2018 Fact Form D
  • Securities offered: pooled Aug 14, 2018 Fact Form D
  • Office address: Aug 14, 2018 Fact Form D
  • Year of incorporation: 2018 Aug 14, 2018 Fact Form D

Relationships across DFX

on 1 other DFX graph
Across the graphs

Castle Island Ventures I-A, L.P. is the same institution as 1 record in RIA and Wealth.

RIA and Wealth1

The joined record opens with the product, beside every other relationship on this page.

Checking your plan…

Record history

2 dated events on the change ledger, latest event first
  • Fund first reported on ADV
    2018-10-12source on record
  • Form D filed
    2018-08-14source on record

The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.