Raluca Dinu - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Raluca Dinu is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $316K.
Profile
Raluca Dinu serves as Chief Executive Officer of QT IMAGING HOLDINGS, INC. (QTI). Dinu has also held reporting roles at GigCapital7 Corp. (HDRN). Dinu has reported 4 insider filings with the SEC since 2024. The most recent filing was in March 2026.
| Role | Chief Executive Officer, Director |
|---|---|
| Notability | 50/100 |
Board memberships
- QT IMAGING HOLDINGS, INC.
- GigCapital7 Corp.
Reported roles
- Chief Executive Officer
- Director
Awards & honors
- CEO of GigCapital7 Corp.
- Director at QT Imaging Holdings, Inc.
Trading Pattern
InsiderAlpha's records for Raluca Dinu go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. The typical open-market purchase is $158K (2 buys totaling $316K). The largest single buy on record is $316K of QTI in 2024. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Raluca Dinu has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Chief Executive Officer, Director at QT IMAGING HOLDINGS, INC. (QTI) - 3 filings, 2024 to 2026
- Director, 10% Owner at GigCapital7 Corp. (HDRN) - 1 filing, 2025
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-25 | QTI | QT IMAGING HOLDINGS, INC. | A - Grant or award | 16.0K | $0.00 | |
| 2026-03-25 | QTI | QT IMAGING HOLDINGS, INC. | A - Grant or award | 500.0K | $0.00 | |
| 2026-03-25 | QTI | QT IMAGING HOLDINGS, INC. | A - Grant or award | 3.5K | $0.00 | |
| 2024-11-14 | QTI | QT IMAGING HOLDINGS, INC. | P - Open-market purchase | 470.9K | $0.00 |
Most Active Insiders Right Now
Raluca Dinu has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- RBC Global Asset Management (U.S.) Inc.
- Redmile Group, LLC
- Andrew Phillips Reed
- Daniel Reis-Faria
- Saul B. Rosenthal
- Jack Ross
- Martine A. Rothblatt
- Saba Capital Management, L.P.
Frequently Asked Questions
Who is Raluca Dinu?
Raluca Dinu serves as Chief Executive Officer of QT IMAGING HOLDINGS, INC. (QTI). Dinu has also held reporting roles at GigCapital7 Corp. (HDRN). Dinu has reported 4 insider filings with the SEC since 2024. The most recent filing was in March 2026.…
Has Raluca Dinu been buying or selling stock?
Recorded transactions: 2 open-market purchases ($316K) and 0 open-market sales across all tracked filings.
Where can I see all of Raluca Dinu's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Raluca Dinu profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.