RIBAR GEOFFREY G
SEC insider (Form 3/4/5 filer). CIK 0001247434. Director at QuantumScape Corp (QS) and 3 other issuers. 12 reported Form 4/5 transactions since Sep 2024; latest on Jun 3, 2026. Located in SAN JOSE, CA.
Companies RIBAR GEOFFREY G has filed insider reports for
- QuantumScape Corp (QS): Director
- EVERSPIN TECHNOLOGIES INC. (MRAM): Director
- MACOM Technology Solutions Holdings, Inc. (MTSI): Director
- ACACIA RESEARCH CORP (ACTG): Director
RIBAR GEOFFREY G
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
AwardDirect24.2K shares- - May 21, 2026MRAM
EVERSPIN TECHNOLOGIES INC.
AwardDirect3.9K shares- - May 20, 2026MRAM
EVERSPIN TECHNOLOGIES INC.
SaleDirect27.5K shares at avg. $28.87$794K - May 11, 2026MTSI
MACOM Technology Solutions Holdings, Inc.
SaleDirect1.6K shares at avg. $361.84$587K - Mar 6, 2026MTSI
MACOM Technology Solutions Holdings, Inc.
AwardDirect776 shares- - Feb 25, 2026MTSI
MACOM Technology Solutions Holdings, Inc.
SaleDirect2.2K shares at avg. $253.59$569K - Jan 29, 2026QS
QuantumScape Corp
AwardDirect29.9K shares- - Jan 29, 2026QS
QuantumScape Corp
AwardDirect6.2K shares- - May 30, 2025ACTG
ACACIA RESEARCH CORP
AwardDirect32.2K shares- - May 22, 2025MRAM
EVERSPIN TECHNOLOGIES INC.
AwardDirect20.3K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 3, 2026 |  QS QuantumScape Corp | Award | 24,183 | - | $0 | Direct |
| May 21, 2026 |  MRAM EVERSPIN TECHNOLOGIES INC. | Award | 3,852 | - | $0 | Direct |
| May 20, 2026 | MRAM EVERSPIN TECHNOLOGIES INC. | Sale | 27,488 | $28.87 | $793,579 | Direct |
| May 11, 2026 |  MTSI MACOM Technology Solutions Holdings, Inc. | Sale | 1,623 | $361.84 | $587,266 | Direct |
| Mar 6, 2026 | MTSI MACOM Technology Solutions Holdings, Inc. | Award | 776 | - | $0 | Direct |
| Feb 25, 2026 | MTSI MACOM Technology Solutions Holdings, Inc. | Sale | 2,244 | $253.59 | $569,056 | Direct |
| Jan 29, 2026 | QS QuantumScape Corp | Award | 29,878 | - | $0 | Direct |
| Jan 29, 2026 | QS QuantumScape Corp | Award | 6,224 | - | $0 | Direct |
| May 30, 2025 |  ACTG ACACIA RESEARCH CORP | Award | 32,172 | - | - | Direct |
| May 22, 2025 | MRAM EVERSPIN TECHNOLOGIES INC. | Award | 20,325 | - | - | Direct |
1-10 of 12 transactions