DFX Intelligence
Venture Capital Intelligence
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 / Lightstone Ventures
Lightstone Ventures
AcceleratorMenlo Park, CAlightstonevc.comSEC venture capital fund adviserone firm, 2 filing advisers
This firm files as 2 advisers on lightstonevc.com: Lightstone Singapore Pte. Ltd.. Each keeps its own CRD, funds and filings; the grouping is the website each swore to on Form ADV and is recomputed every pass.
name or self-description says accelerator
Importance
39
elevated
Active deployment
8
low
Emerging
0
low
Completeness
75
high
Freshness
100
high
Research priority
7
low
Identity and regulatory footprint
- Headquarters
- Portola Valley, CAadviserinfo.sec.gov
- Office address
- 3270 ALPINE RD., Portola Valley, CA, 94028adviserinfo.sec.gov
- Business phone
- 6503883676adviserinfo.sec.gov
- 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
- 6 (6 venture capital funds)adviserinfo.sec.gov
- Private fund gross assets
- $553Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
- Owners on Schedule A
- Hanson S. Gifford III and Alexandra Stitt Gifford, Trustees of the Gifford Family Trust Dated July 21, 2006 (Member Of Lsv Associates Iii, Llc), A; Henry a. Plain, Jr. and Lisa M. Plain, Trustees of the Plain Family Trust U/d/t Dated June 18, 2004 (Member Of Lightstone Singapore Associates, Llc), B; The Noonan/ramirez Revocable Living Trust Dated December 14, 2018 (Member Of Lightstone Singapore Associates, Llc), B; Gabu Investment Holdings Limited (Member Of Lsv Associates Iii, Llc), A; Henry a. Plain, Jr. and Lisa M. Plain, Trustees of the Plain Family Trust U/d/t Dated September 7, 1994 (Member Of Lsv Associates Ii, Llc), B; Michael a. Carusi and Mary C. Carusi, As Trustees of the Carusi Family Trust Dated July 19, 2016 (Member Of Lsv Associates Iii, Llc), C
- business phone
- 6503883676adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
5 observed deals
Stated (the firm’s website)
- Sectors
- healthcare, biotech, medtech, consumer
- Stages
- seed, early, multi stage
- Geography
- boston, europe, global, globally, north carolina, singapore, uk
- Check size
- not stated; DFX does not estimate checks from round sizes
- Self-described
- accelerator
Observed (from deals on record)
Stage at participation
series b 100%
Stage at first entry
series b 100%
Sectors
Other Health Care 60%unknown 20%Biotechnology 20%
lead rate 0%follow-on rate 0%new logos, 12 months 2
60% of companies on record are Other Health Care, which the site does not name
Funds and vehicles
5 reported, 2 no longer reported
| Vehicle | Type | Vintage | Lifecycle | Reported GAV | Owners | Form D sold | Latest Form D |
|---|---|---|---|---|---|---|---|
| Lightstone Ventures III, L.P. | Fund | 2021 form d first sale | Mature | $334M Mar 29, 2024 | 41 | $375M of $375M | Sep 17, 2021 |
| Lightstone Ventures II, L.P. | Fund | 2018 adv first reported | Harvest | $199M Mar 29, 2024 | 35 | $0 of $200M | Jun 2, 2017 |
| Lightstone Ventures II (a), L.P. | Fund | 2018 adv first reported | Harvest | $11.7M Mar 29, 2024 | 2 | unknown | unknown |
| Lightstone Ventures, L.P. | Fund | 2013 form d first sale | Harvest | $115M Mar 29, 2024 | 34 | $165M of $250M | Apr 7, 2014 |
| Lightstone Ventures (a), L.P. | Fund | unknown | Unknown | $14.9M Mar 29, 2024 | 2 | unknown | unknown |
| Lightstone Ventures (aiv), L.P. | Fund | 2015 adv first reported | Wound down | $30.4M Apr 1, 2020 | 34 | unknown | unknown |
| Lightstone Ventures (a) (aiv), L.P. | Fund | 2015 adv first reported | Wound down | $4.1M Apr 1, 2020 | 2 | unknown | unknown |
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
16 current, 4 departed
Alexandra Stitt Gifford
Board or advisoryTrustee Of The Gifford Family Trust Dated July 21, 2006 · since Jul 1, 2006
Hanson S Gifford III
Board or advisoryTrustee Of The Gifford Family Trust Dated July 21, 2006 · since Jul 1, 2006
Kenneth Daniel Noonan
Board or advisoryTrustee Of The Noonan/Ramirez Revocable Living Trust Dated December 14, 2018 · since Dec 1, 2018
Lisa Plain
Board or advisoryTrustee Of The Plain Family Trust U/D/T Dated September 7, 1994 · since Sep 1, 1994
Mary Catherine Carusi
Board or advisoryTrustee Of The Carusi Family Trust Dated July 19, 2016 · since Jul 1, 2016
Tammy Ramirez
Board or advisoryTrustee Of The Noonan/Ramirez Revocable Living Trust Dated December 14, 2018 · since Dec 1, 2018
Christina Kaldany Isacson
PartnerMember Of Lsv Associates Iii, Llc · since Jun 1, 2021
Henry Albert Plain
PartnerManaging Director Of Lsv Associates Ii, Llc · since Feb 1, 2017
Jaclyn Lettmann
PartnerMember Of Lightstone Singapore Associates, Llc · since Jun 1, 2023
Jean M. George
PartnerMember/Managing Director Of Lsv Associates Iii, Llc · since Apr 1, 2021
Lettmann Jason
PartnerMember Of Lightstone Singapore Associates, Llc · since Jun 1, 2023
Michael a. Carusi
PartnerManaging Director Of Lsv Associates Iii, Llc · since Apr 1, 2021
Ralph Earl Christoffersen
PartnerMember Of Lsv Associates, Llc · since Apr 1, 2013
Travis John Boettner
Platform and operationsChief Financial Officer · since Jun 1, 2018
Alan Celsus Butler
PrincipalDirector And Shareholder Of Gabu Investment Holdings Limited · since Nov 1, 2016
Caroline Butler
PrincipalDirector And Shareholder Of Gabu Investment Holdings Limited · since Nov 1, 2016
4 departed (kept with end dates)
- Laura a Deem · Trustee Of The Deem Family Trust U/T/A September 1, 2004 · Dec 1, 2004 to Mar 31, 2022 Inference
- Mark E Deem · Trustee Of The Deem Family Trust U/T/A September 1, 2004 · Dec 1, 2004 to Mar 31, 2022 Inference
- Adam Bruce · Chief Financial Officer Of Lsv Capital Management, Llc · Apr 1, 2013 to Mar 31, 2018 Inference
- Deirdre a. Cunnane · General Counsel · Apr 1, 2013 to Mar 30, 2016 Inference
Investments on record
5 edges, 5 companies, 4 partner-attributed
| Company | Round | Role | Partner | Round size | This investor | Date | Source |
|---|---|---|---|---|---|---|---|
| Crystalys Therapeutics | Series B · Series B | participant | unknown | $130M | unknown | Jul 22, 2026 | Fact Press release wires (Business Wire, PR Newswire, GlobeNewswire public RSS) |
| Imperative Care, Inc. | board seat | unknown · board | Henry Albert Plain (strongly supported) | unknown | unknown | Mar 20, 2026 | Inference SEC EDGAR Form D data sets (quarterly) |
| Apreo Health, Inc. | board seat | unknown · board | Michael a. Carusi (strongly supported) | unknown | unknown | Aug 19, 2025 | Inference SEC EDGAR Form D data sets (quarterly) |
| Allay Therapeutics, Inc. | board seat | unknown · board | Michael a. Carusi (strongly supported) | unknown | unknown | Feb 10, 2025 | Inference SEC EDGAR Form D data sets (quarterly) |
| Nuvaira, Inc. | board seat | unknown · board | Michael a. Carusi (strongly supported) | unknown | unknown | May 9, 2024 | Inference SEC EDGAR Form D data sets (quarterly) |
“This investor” is the amount disclosed for this investor alone; it is unknown unless a source said it. The round size is the whole round.
Co-investors
17 relationships from shared deals, counted for the whole firm
Ascension Ventures 1 shared · one timeCatalio Capital Management, LP 1 shared · one timeFemhealth Ventures Management LLC 1 shared · one timeArboretum Ventures 1 shared · one timeWindham Venture Partners 1 shared · one timePerceptive Xontogeny Venture Funds 1 shared · one timePivotal Life Sciences 1 shared · one timeTrails Edge Capital Partners 1 shared · one timeCatalys Pacific 1 shared · one timeSR One 1 shared · one timeCormorant Asset Management 1 shared · one timeFrazier Life Sciences 1 shared · one time · they led 1Soleus Capital Management, L.P. 1 shared · one timePivotal 1 shared · one timeKCap Biotechnology Fund 1 shared · one timeHBM Healthcare Investments 1 shared · one timeWellington Management 1 shared · one time
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
31 dated events
- Sep 16, 2026Lightstone Ventures: INSTITUTIONAL_VC -> ACCELERATOR (name or self-description says accelerator)Classification changedClassificationInferenceno URL
- Mar 31, 2022Laura a Deem (Trustee Of The Deem Family Trust U/T/A September 1, 2004) no longer on Schedule A of Lightstone Ventures
- Mar 31, 2022Lightstone Ventures III, L.P. first reported on Form ADV by Lightstone Ventures (Venture Capital Fund), GAV $350,660,497Fund first reported on Form ADVFundsFactLightstone Ventures III, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Mar 31, 2022Mark E Deem (Trustee Of The Deem Family Trust U/T/A September 1, 2004) no longer on Schedule A of Lightstone Ventures
- Jun 1, 2021Christina Kaldany Isacson joined Schedule A of Lightstone Ventures as Member Of Lsv Associates Iii, Llc
- Mar 31, 2021Lightstone Ventures (aiv), L.P. no longer reported on Form ADV by Lightstone VenturesFund no longer reportedFundsInferenceLightstone Ventures (aiv), L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Mar 31, 2021Lightstone Ventures (a) (aiv), L.P. no longer reported on Form ADV by Lightstone VenturesFund no longer reportedFundsInferenceLightstone Ventures (a) (aiv), L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Dec 1, 2018Tammy Ramirez joined Schedule A of Lightstone Ventures as Trustee Of The Noonan/Ramirez Revocable Living Trust Dated December 14, 2018
- Dec 1, 2018Kenneth Daniel Noonan joined Schedule A of Lightstone Ventures as Trustee Of The Noonan/Ramirez Revocable Living Trust Dated December 14, 2018
- Jun 1, 2018Travis John Boettner joined Schedule A of Lightstone Ventures as Chief Financial Officer
- Mar 31, 2018Lightstone Ventures II (a), L.P. first reported on Form ADV by Lightstone Ventures (Venture Capital Fund), GAV $13,709,947Fund first reported on Form ADVFundsFactLightstone Ventures II (a), L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Mar 31, 2018Lightstone Ventures II, L.P. first reported on Form ADV by Lightstone Ventures (Venture Capital Fund), GAV $233,604,924Fund first reported on Form ADVFundsFactLightstone Ventures II, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Mar 31, 2018Adam Bruce (Chief Financial Officer Of Lsv Capital Management, Llc) no longer on Schedule A of Lightstone Ventures
- Mar 31, 2017Lightstone Singapore, L.P. no longer reported on Form ADV by Lightstone VenturesFund no longer reportedFundsInferenceLightstone Singapore, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Nov 1, 2016Alan Celsus Butler joined Schedule A of Lightstone Ventures as Director And Shareholder Of Gabu Investment Holdings Limited
- Nov 1, 2016Caroline Butler joined Schedule A of Lightstone Ventures as Director And Shareholder Of Gabu Investment Holdings Limited
- Jul 1, 2016Mary Catherine Carusi joined Schedule A of Lightstone Ventures as Trustee Of The Carusi Family Trust Dated July 19, 2016
- Mar 30, 2016Lightstone Singapore, L.P. first reported on Form ADV by Lightstone Ventures (Venture Capital Fund)Fund first reported on Form ADVFundsFactLightstone Singapore, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Mar 30, 2016Deirdre a. Cunnane (General Counsel) no longer on Schedule A of Lightstone Ventures
- Mar 27, 2015Lightstone Ventures (a) (aiv), L.P. first reported on Form ADV by Lightstone Ventures (Venture Capital Fund), GAV $165,483Fund first reported on Form ADVFundsFactLightstone Ventures (a) (aiv), L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Mar 27, 2015Lightstone Ventures (aiv), L.P. first reported on Form ADV by Lightstone Ventures (Venture Capital Fund), GAV $1,214,517Fund first reported on Form ADVFundsFactLightstone Ventures (aiv), L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Jun 11, 2013Lightstone Ventures 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)
- Jun 11, 2013Lightstone Ventures, L.P. first reported on Form ADV by Lightstone Ventures (Venture Capital Fund)Fund first reported on Form ADVFundsFactLightstone Ventures, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Jun 11, 2013Lightstone Ventures (a), L.P. first reported on Form ADV by Lightstone Ventures (Venture Capital Fund)Fund first reported on Form ADVFundsFactLightstone Ventures (a), L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Jul 1, 2006Hanson S Gifford III joined Schedule A of Lightstone Ventures as Trustee Of The Gifford Family Trust Dated July 21, 2006
- Jul 1, 2006Alexandra Stitt Gifford joined Schedule A of Lightstone Ventures as Trustee Of The Gifford Family Trust Dated July 21, 2006
- Dec 1, 2004Laura a Deem joined Schedule A of Lightstone Ventures as Trustee Of The Deem Family Trust U/T/A September 1, 2004
- Dec 1, 2004Mark E Deem joined Schedule A of Lightstone Ventures as Trustee Of The Deem Family Trust U/T/A September 1, 2004
- Jun 1, 2004Lettmann Jason joined Schedule A of Lightstone Ventures as Trustee Of The J&J Lettmann Family Trust Dated June 18, 2004
- Jun 1, 2004Jaclyn Lettmann joined Schedule A of Lightstone Ventures as Trustee Of The J&J Lettmann Family Trust Dated June 18, 2004
- Sep 1, 1994Lisa Plain joined Schedule A of Lightstone Ventures as Trustee Of The Plain Family Trust U/D/T Dated September 7, 1994
Classification history
- Sep 16, 2026Accelerator (confirmed, 95%, cls-1)name or self-description says accelerator
- Sep 12, 2026Institutional venture firm (confirmed, 95%, cls-1)venture manager, reported GAV $675M across 5 vehicles
Evidence
53 observations from 3 sources