DFX Intelligence
Atlas Venture Fund X, L.P.
As of · the latest observation of this vehicle; each figure below carries its own filing date
UnknownFundraising status unknownADV: Venture Capital Fund
As of · the latest observation of this vehicle; each figure below carries its own filing date
3 additional principals
Every relationship, signal and contact on this record, with the source on each.
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What matters now
- +21%reported GAV
Reported gross assets rose from $406M to $491M 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.
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
- $250Mwhat may be sold, not what was raised; file 021-230375, sworn by the adviser or filed under this vehicle
- Form D sold
- $0as of the filing of Dec 18, 2014
- First sale
- unknown
- Reported GAV
- $491Mon the Form ADV filed Mar 31, 2026; the fund's assets, never its size or dry powder
- Owners (ADV)
- 37
- Reported on ADV
- Feb 19, 2015 to Mar 31, 2026
Fundraising evidence
What counts as raisingA Form D offering is permission to sell, not a fund in market; an amount sold is never a close; an evergreen offering amended every year is not a raise.Unknown
latest Form D 2014-12-18, older than 15 months (fr-1)
evidence dated Dec 18, 2014.
Lifecycle
Unknown
Lifecycle
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: $250Mform d latest filed at: Dec 18, 2014
The fund's own reporting through time
12 Form ADV filings
| Filed | Type | Gross asset value | Owners | Min. investment | Adviser-owned | Audit | |
|---|---|---|---|---|---|---|---|
| Feb 19, 2015 | Venture Capital Fund | $121M | 7 | $1.0M | 2% | yes | |
| Jan 11, 2016 | Venture Capital Fund | $277M | 37 | $500,000 | 2% | yes | |
| Mar 31, 2016 | Venture Capital Fund | $277M | 37 | $500,000 | 2% | yes | |
| Mar 30, 2017 | Venture Capital Fund | $379M | 37 | $500,000 | 2% | yes | |
| Mar 30, 2018 | Venture Capital Fund | $593M | 37 | $500,000 | 2% | yes | |
| Mar 29, 2019 | Venture Capital Fund | $690M | 37 | $500,000 | 2% | yes | |
| Mar 31, 2020 | Venture Capital Fund | $759M | 37 | $500,000 | 2% | yes | |
| Jun 8, 2021 | Venture Capital Fund | $1.4B | 37 | $500,000 | 2% | yes | |
| Mar 31, 2022 | Venture Capital Fund | $870M | 37 | $500,000 | 2% | yes | |
| Mar 31, 2023 | Venture Capital Fund | $582M | 37 | $500,000 | 2% | yes | |
| Mar 29, 2024 | Venture Capital Fund | $406M | 37 | $500,000 | 2% | yes | |
| Mar 31, 2026 | Venture Capital Fund | $491M | 37 | $500,000 | 2% |
Principals and agents
6 principals on Form D, 0 placement agents
- Bruce Booth Executive Officer
- Jason Rhodes Executive Officer
- Atlas Venture Associates X, L.P. Executive Officer
Service providers
2 named on Form ADV Schedule D and Form D
- AuditorKPMG · BOSTON, Massachusetts, United StatesForm ADV filed Mar 31, 2026 reports.adviserinfo.sec.gov
- AdministratorStandish Management · SAN FRANCISCO, California, United StatesForm ADV filed Mar 31, 2026 reports.adviserinfo.sec.gov
Limited partners and their reported performance
Whose numbers these areEach row is the LP’s own number: its cash flows and its valuation policy as of its reporting date, not the fund’s. Net IRR is printed only when the LP prints one. The vintage is the LP’s definition (CalPERS: year of its first cash flow; WSIB: year of its initial investment).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
What these amounts and dates areA commitment date prints only when the source printed one; otherwise the row carries the date of the report that listed it. A foundation’s 990-PF line is a holding at fair value on its return, never a commitment.1 relationship, public pensions and the allocator graph, each counted once
| Allocator | Type | Amount | Date | Source |
|---|---|---|---|---|
| The Grantham Foundation for the Protection of the Environment | FOUNDATION | $4.6M fair value on the foundation's return | reported as of Dec 31, 2024 | Fact IRS Form 990 / 990-PF e-file returns |
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
4 events
- Mar 31, 2026Administrator changed: Standish Management replaced Apex Group, first reported on the Form ADV filed March 31, 2026 (previous filing April 1, 2025)Administrator changed Fact Form ADV
- Mar 31, 2023Administrator changed: Apex Group replaced BROADSCOPE, first reported on the Form ADV filed March 31, 2023 (previous filing March 31, 2022)Administrator changed Fact Form ADV
- Feb 19, 2015Atlas Venture Fund X, L.P. first reported on Form ADV by Atlas Venture Life Science Advisors, LLC (Venture Capital Fund), GAV $121,019,595Fund first reported on Form ADV Fact Form ADV
- Dec 18, 2014Atlas Venture Fund X, L.P. filed Form D: no sales yet of $250,000,000, Venture Capital FundForm D filed Fact Form D
Evidence
15 observations
Every observation on this vehicle
- Entity type: Limited Partnership Dec 18, 2014 Fact Form D
- Form D fund type: Venture Capital Fund Dec 18, 2014 Fact Form D
- Form D industry group: Pooled Investment Fund Dec 18, 2014 Fact Form D
- Amendment: false Dec 18, 2014 Fact Form D
- Revenue range (Form D): Not Applicable Dec 18, 2014 Fact Form D
- Incorporated: withinFiveYears Dec 18, 2014 Fact Form D
- Jurisdiction: Delaware Dec 18, 2014 Fact Form D
- Amount sold (Form D): $0 Dec 18, 2014 Fact Form D
- Offering amount (Form D): $250M Dec 18, 2014 Fact Form D
- Exemptions: 06b, 3C, 3C.7 Dec 18, 2014 Fact Form D
- Investors (Form D): 0 Dec 18, 2014 Fact Form D
- Minimum investment (Form D): 0 Dec 18, 2014 Fact Form D
- Securities offered: pooled Dec 18, 2014 Fact Form D
- Office address: Dec 18, 2014 Fact Form D
- Year of incorporation: 2014 Dec 18, 2014 Fact Form D
Relationships across DFX
on 2 other DFX graphs
Across the graphs
Atlas Venture Fund X, L.P. is the same institution as 2 records in RIA and Wealth and Allocators.
RIA and Wealth1Allocators1
DFX found 2 relationships across 2 datasets
Which record it is in each graph, what it is called there, and how the two were matched.
Includes 3 days of DFX Intelligence. Then $199/month unless canceled.
Checking your plan…
Record history
2 dated events on the change ledger, latest event first
- Fund first reported on ADV2015-02-19source on record
- Form D filed2014-12-18source 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.