Geoffrey G. Ribar
CIK: 0001247434
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- Jun 3, 2026QS
QuantumScape Corp
Award(A)Direct24.2K shares- - May 21, 2026MRAM
EVERSPIN TECHNOLOGIES INC.
Award(A)Direct3.9K shares- - May 20, 2026MRAM
EVERSPIN TECHNOLOGIES INC.
Sale(S)Direct27.5K shares at avg. $28.87$794K - May 11, 2026MTSI
MACOM Technology Solutions Holdings, Inc.
Sale(S)Direct1.6K shares at avg. $361.84$587K - Mar 6, 2026MTSI
MACOM Technology Solutions Holdings, Inc.
Award(A)Direct776 shares- - Feb 25, 2026MTSI
MACOM Technology Solutions Holdings, Inc.
Sale(S)Direct2.2K shares at avg. $253.59$569K - Jan 29, 2026QS
QuantumScape Corp
Award(A)Direct29.9K shares- - Jan 29, 2026QS
QuantumScape Corp
Award(A)Direct6.2K shares- - May 30, 2025ACTG
ACACIA RESEARCH CORP
Award(A)Direct32.2K shares- - May 22, 2025MRAM
EVERSPIN TECHNOLOGIES INC.
Award(A)Direct20.3K shares- - Mar 7, 2025MTSI
MACOM Technology Solutions Holdings, Inc.
Award(A)Direct1.6K shares- - Feb 12, 2025MTSI
MACOM Technology Solutions Holdings, Inc.
Sale(S)Direct6.7K shares at avg. $121.61$809K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 3, 2026 |  QS QuantumScape Corp | Award(A) | 24,183 | - | $0 | Direct |
| May 21, 2026 |  MRAM EVERSPIN TECHNOLOGIES INC. | Award(A) | 3,852 | - | $0 | Direct |
| May 20, 2026 | MRAM EVERSPIN TECHNOLOGIES INC. | Sale(S) | 27,488 | $28.87 | $793,579 | Direct |
| May 11, 2026 |  MTSI MACOM Technology Solutions Holdings, Inc. | Sale(S) | 1,623 | $361.84 | $587,266 | Direct |
| Mar 6, 2026 | MTSI MACOM Technology Solutions Holdings, Inc. | Award(A) | 776 | - | $0 | Direct |
| Feb 25, 2026 | MTSI MACOM Technology Solutions Holdings, Inc. | Sale(S) | 2,244 | $253.59 | $569,056 | Direct |
| Jan 29, 2026 | QS QuantumScape Corp | Award(A) | 29,878 | - | $0 | Direct |
| Jan 29, 2026 | QS QuantumScape Corp | Award(A) | 6,224 | - | $0 | Direct |
| May 30, 2025 |  ACTG ACACIA RESEARCH CORP | Award(A) | 32,172 | - | - | Direct |
| May 22, 2025 | MRAM EVERSPIN TECHNOLOGIES INC. | Award(A) | 20,325 | - | - | Direct |
| Mar 7, 2025 | MTSI MACOM Technology Solutions Holdings, Inc. | Award(A) | 1,623 | - | - | Direct |
| Feb 12, 2025 | MTSI MACOM Technology Solutions Holdings, Inc. | Sale(S) | 6,656 | $121.61 | $809,436 | Direct |
1-12 of 12 transactions
About RIBAR GEOFFREY G
RIBAR GEOFFREY G (SEC CIK 0001247434) files insider reports with the SEC as Director of QuantumScape Corp (QS), Director of EVERSPIN TECHNOLOGIES INC. (MRAM) and Director of MACOM Technology Solutions Holdings, Inc. (MTSI). Signal8 also holds filings tied to 1 other company.
Signal8 holds 12 ownership filings by RIBAR GEOFFREY G (1 Form 3, 11 Form 4), filed between Feb 14, 2025 and Jun 5, 2026. Those filings report 12 transactions, from Feb 12, 2025 to Jun 3, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on RIBAR GEOFFREY G's filings is in SAN JOSE, CA.
Recent filings by RIBAR GEOFFREY G
- Jun 3, 2026: Grant or award of QS shares (Form 4, code A).
- May 21, 2026: Grant or award of MRAM shares (Form 4, code A).
- May 20, 2026: Open-market sale of MRAM shares (Form 4, code S).
- May 11, 2026: Open-market sale of MTSI shares (Form 4, code S).
- Mar 6, 2026: Grant or award of MTSI shares (Form 4, code A).
Other insiders filing for QuantumScape Corp (QS)
- Holme Timothy, CHIEF TECHNOLOGY OFFICER
- MCCARTHY MICHAEL O III, CHIEF LEGAL OFFICER
- Singh Mohit, CHIEF DEVELOPMENT OFFICER
- Hettrich Kevin, CHIEF FINANCIAL OFFICER
- Sivaram Srinivasan, CHIEF EXECUTIVE OFFICER
- Fasoli Luca Giovanni, Chief Operating Officer