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SCHEDULE 13G Filed 2026-07-17 Event — SEC 0002052113-26-000735 →

BlackRock Portfolio Management LLC QUANTINUUM INC CLASS A QNT

Stake: Shares: CUSIP: 74768A104 Class: Class A Stock

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
25 transactions
24 buys · 0 sales · 0 awards/exercises
Issuer Cluster
3 13D/G filings on this issuer
2 other filings besides this one
Filer Track Record
26 filings by this filer
25 other filings in the data moat
Short Interest · settle 2026-06-30
DTC 1.18
4,669,276 shares short · +59.6% vs prior

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-06-05 Narang Prineha director Buy 200 $60.00 $12K
2026-06-05 JIMENEZ JOSEPH director Buy 66,665 $60.00 $4.00M
2026-06-05 SHARAN NITESH officer Buy 6,500 $60.00 $390K
2026-06-05 Barron Hal director Buy 250,000 $60.00 $15.00M
2026-06-05 Branderiz Eric director Buy 8,334 $60.00 $500K
2026-06-05 Kapur Vimal director Buy 13,000 $60.00 $780K
2026-06-05 Stepniak Michal director Buy 13,333 $60.00 $800K
2026-06-05 Dehoff Kevin Scott officer Buy 15,000 $60.00 $900K
2026-06-05 Daugherty Paul R. director Buy 4,000 $60.00 $240K
2026-06-05 DENMAN KENNETH D director Buy 14,000 $60.00 $840K
2026-06-05 BHATIA MANISH H director Buy 20,000 $60.00 $1.20M
2026-06-04 Narang Prineha director Award 5,833
2026-06-04 JIMENEZ JOSEPH director Award 5,833
2026-06-04 SHARAN NITESH officer Award 44,548
2026-06-04 Barron Hal director Award 5,833
2026-06-04 Branderiz Eric director Award 5,833
2026-06-04 Daugherty Paul R. director Award 5,833
2026-06-04 DENMAN KENNETH D director Award 5,833
2026-06-04 BHATIA MANISH H director Award 5,833
2026-06-04 Hazra Rajeeb director, officer Award 78,333
2026-06-03 SHARAN NITESH officer Award 289,798
2026-06-03 Dehoff Kevin Scott officer Award 111,460
2026-06-03 Hazra Rajeeb director, officer Award 1,042,561
2026-06-03 Hazra Rajeeb director, officer F 336,389 $60.00 $20.18M
2026-06-03 Hazra Rajeeb director, officer Award 122,791 $60.00 $7.37M

Other 13D/G Filings on QUANTINUUM INC CLASS A

FiledFormFilerStakeShares
2026-07-06 SCHEDULE 13G Capital World Investors view →
2026-06-22 SCHEDULE 13G Cambridge Quantum Holdings Ltd view →

Other Filings by BlackRock Portfolio Management LLC

FiledFormIssuerStakeShares
2026-07-17 SCHEDULE 13G NETSTREIT Corp. view →
2026-07-17 SCHEDULE 13G iShares Large Cap Core Active ETF view →
2026-07-17 SCHEDULE 13G iShares Flexible Equity Active ETF view →
2026-07-17 SCHEDULE 13G BLACKSTONE DIGITAL INFRASTRUCTURE view →
2026-07-17 SCHEDULE 13G SPROUT SOCIAL INC view →
2026-07-17 SCHEDULE 13G SKINHEALTH SYSTEMS INC. view →
2026-07-17 SCHEDULE 13G Vital Farms, Inc. view →
2026-07-17 SCHEDULE 13G FULCRUM THERAPEUTICS INC view →
2026-07-17 SCHEDULE 13G EVERQUOTE INC view →
2026-07-17 SCHEDULE 13G EVOLENT HEALTH, INC view →
2026-07-17 SCHEDULE 13G iShares MSCI Poland ETF view →
2026-07-17 SCHEDULE 13G InvenTrust Properties Corp view →
2026-07-17 SCHEDULE 13G iShares MSCI Saudi Arabia ETF view →
2026-07-17 SCHEDULE 13G RxSight, Inc. view →
2026-07-17 SCHEDULE 13G BRANDYWINE REALTY TRUST view →
2026-07-08 SCHEDULE 13G iShares 1-10 Year Treasury Bond ETF view →
2026-07-08 SCHEDULE 13G iShares Bitcoin Premium Income ETF BITA view →
2026-06-04 SCHEDULE 13G ISHARES MSCI GERMANY ETF view →
2026-06-04 SCHEDULE 13G ISHARES MSCI FINLAND ETF view →
2026-06-04 SCHEDULE 13G iShares Large Cap 10% Target Buffer Dec ETF view →
Showing 20 of 25

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