IPO WATCH
Private to public, filed and tracked.
SEC EDGAR full-text search runs across 7 curated private photonic computing companies and auto-scans the filing feed for photonics keywords (silicon photonics, TFLN, optical interconnect…) to surface brand-new S-1/F-1/DRS/424B4 filers. When the bell rings, you'll know first.
⚡ NEW FILERS AUTO-DISCOVERED
Quantinuum Inc.(QNT)
Form S-1/A · CIK 0002110105 · Filed 2026-06-01
75d ago
matched “silicon photonics”
View on SEC EDGAR →
Quantinuum Inc.(QNT)
Form S-1/A · CIK 0002110105 · Filed 2026-05-26
75d ago
matched “silicon photonics”
View on SEC EDGAR →
MetaOptics Ltd(MOT)
Form F-1/A · CIK 0002099681 · Filed 2026-05-18
75d ago
matched “silicon photonics”
View on SEC EDGAR →
Quantinuum Inc.
Form S-1 · CIK 0002110105 · Filed 2026-05-08
75d ago
matched “silicon photonics”
View on SEC EDGAR →
MetaOptics Ltd
Form F-1 · CIK 0002099681 · Filed 2026-05-04
75d ago
matched “silicon photonics”
View on SEC EDGAR →
RRE Ventures Acquisition Corp.(RREV)
Form 424B4 · CIK 0002123969 · Filed 2026-05-01
75d ago
matched “photonic computing”
View on SEC EDGAR →
SYNTEC OPTICS HOLDINGS, INC. (OPTX, OPTXW)
Form 424B4 · CIK 0001866816 · Filed 2026-04-30
75d ago
matched “silicon photonics”
View on SEC EDGAR →
RRE Ventures Acquisition Corp.(RREV)
Form S-1/A · CIK 0002123969 · Filed 2026-04-27
75d ago
matched “photonic computing”
View on SEC EDGAR →
SYNTEC OPTICS HOLDINGS, INC. (OPTX, OPTXW)
Form S-1 · CIK 0001866816 · Filed 2026-04-27
75d ago
matched “silicon photonics”
View on SEC EDGAR →
Quantinuum Inc.
Form DRS/A · CIK 0002110105 · Filed 2026-04-23
75d ago
matched “silicon photonics”
View on SEC EDGAR →
RRE Ventures Acquisition Corp.(RREV)
Form S-1/A · CIK 0002123969 · Filed 2026-04-22
75d ago
matched “photonic computing”
View on SEC EDGAR →
SeeQC, Inc.
Form DRS/A · CIK 0001779977 · Filed 2026-04-22
75d ago
matched “silicon photonics”
View on SEC EDGAR →
MetaOptics Ltd
Form DRS/A · CIK 0002099681 · Filed 2026-04-17
75d ago
matched “silicon photonics”
View on SEC EDGAR →
SYNTEC OPTICS HOLDINGS, INC. (OPTX, OPTXW)
Form DRS · CIK 0001866816 · Filed 2026-04-14
75d ago
matched “silicon photonics”
View on SEC EDGAR →
RRE Ventures Acquisition Corp.
Form S-1 · CIK 0002123969 · Filed 2026-04-07
75d ago
matched “photonic computing”
View on SEC EDGAR →
MetaOptics Ltd
Form DRS/A · CIK 0002099681 · Filed 2026-04-03
75d ago
matched “silicon photonics”
View on SEC EDGAR →
Quantinuum Inc.
Form DRS/A · CIK 0002110105 · Filed 2026-03-31
75d ago
matched “silicon photonics”
View on SEC EDGAR →
Infleqtion, Inc. (INFQ, INFQ-WT)
Form S-1 · CIK 0002007825 · Filed 2026-03-31
75d ago
matched “silicon photonics”
View on SEC EDGAR →
Bleichroeder Acquisition 2 France
Form DRS · CIK 0002119292 · Filed 2026-03-26
75d ago
matched “silicon photonics”
View on SEC EDGAR →
MetaOptics Ltd
Form DRS/A · CIK 0002099681 · Filed 2026-03-12
75d ago
matched “silicon photonics”
View on SEC EDGAR →
Quantinuum Inc.
Form DRS · CIK 0002110105 · Filed 2026-02-17
75d ago
matched “silicon photonics”
View on SEC EDGAR →
WATCH-LIST FILINGS DETECTED
PsiQuantum(QNT)
Form S-1/A · CIK 0002110105 · Filed 2026-06-01
77d ago
View on SEC EDGAR →
PsiQuantum(QNT)
Form S-1/A · CIK 0002110105 · Filed 2026-05-26
77d ago
View on SEC EDGAR →
PsiQuantum(XNDU)
Form F-1 · CIK 0002097163 · Filed 2026-05-22
77d ago
View on SEC EDGAR →
PsiQuantum
Form S-1 · CIK 0002110105 · Filed 2026-05-08
77d ago
View on SEC EDGAR →
PsiQuantum(MRLN)
Form S-1 · CIK 0002028707 · Filed 2026-05-06
77d ago
View on SEC EDGAR →
Celestial AI(MRLN)
Form S-1 · CIK 0002028707 · Filed 2026-05-06
75d ago
View on SEC EDGAR →
PsiQuantum(XNDU)
Form F-1 · CIK 0002097163 · Filed 2026-04-23
77d ago
View on SEC EDGAR →
PsiQuantum
Form DRS/A · CIK 0002110105 · Filed 2026-04-23
77d ago
View on SEC EDGAR →
PsiQuantum
Form DRS/A · CIK 0001779977 · Filed 2026-04-22
77d ago
View on SEC EDGAR →
PsiQuantum(MRLN)
Form S-1 · CIK 0002028707 · Filed 2026-04-15
77d ago
View on SEC EDGAR →
Celestial AI(MRLN)
Form S-1 · CIK 0002028707 · Filed 2026-04-15
75d ago
View on SEC EDGAR →
Celestial AI(MRLN)
Form DRS · CIK 0002028707 · Filed 2026-04-03
75d ago
View on SEC EDGAR →
PsiQuantum
Form DRS/A · CIK 0002110105 · Filed 2026-03-31
77d ago
View on SEC EDGAR →
PsiQuantum
Form S-1 · CIK 0002007825 · Filed 2026-03-31
77d ago
View on SEC EDGAR →
PsiQuantum
Form DRS · CIK 0002119292 · Filed 2026-03-26
77d ago
View on SEC EDGAR →
PsiQuantum
Form DRS · CIK 0002110105 · Filed 2026-02-17
77d ago
View on SEC EDGAR →
Watch list
Q.ANT
Stuttgart, Germany · Est. 2018
Photonic AI compute
TFLN analog photonic processor (NPS); 8-bit multiply in 1 optical element
RAISED
$80M
LAST ROUND
Series A second close (Apr 2026)
Cherry VenturesUVC Partnersimec.xpandTRUMPFDuquesne Family Office
SIGNAL
Series B likely 2027
Lightmatter
Mountain View, CA · Est. 2017
VALUATION
$4.40B
Photonic AI compute + interconnect
Passage M1000 photonic superchip (114 Tbps); Envise AI accelerator
RAISED
$850M
LAST ROUND
Series D (Oct 2025)
GoogleGVT. Rowe Price
SIGNAL
Top IPO candidate — file-watch SEC EDGAR
Celestial AI
Santa Clara, CA · Est. 2020
VALUATION
$1.00B
Photonic AI interconnect
Photonic Fabric — HBM3E/HBM4 compatible interconnects
RAISED
$594M
LAST ROUND
Series C (~2024)
NVIDIAAMDIntelFidelityBlackRock
SIGNAL
Strategic — all 3 major chipmakers invested
Ayar Labs
Santa Clara, CA · Est. 2015
VALUATION
$1.00B
Optical I/O chiplets
In-package optical I/O chiplets; 100+ Tbps demonstrated
RAISED
—
LAST ROUND
Series D (2024)
AMDIntelNVIDIACapitalGHP Pathfinder
SIGNAL
Top IPO candidate 2026/2027
PsiQuantum
Palo Alto, CA · Est. 2016
Photonic quantum
Silicon photonic fault-tolerant quantum; GFS partnership
RAISED
$665M
LAST ROUND
Series D
BlackRockTemasekMicrosoft M12Baillie Gifford
SIGNAL
IPO possible 2027+
Xanadu
Toronto, Canada · Est. 2017
Photonic quantum
Squeezed-light photonic quantum; PennyLane open-source ML
RAISED
$287M
LAST ROUND
Series C
BessemerOMERSTiger GlobalBDC Capital
SIGNAL
Announced IPO plans early 2026 — file-watch
Lightelligence
Boston, MA · Est. 2017
Photonic AI compute
PACE silicon photonic computing; LightSphere X "optical GPU"
RAISED
—
LAST ROUND
Series B
MIT spinout backers
SIGNAL
Watch for Series C/D