Necip Sayiner
CIK: 0001338515
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 (16 total)
- Jun 3, 2026ACLS
AXCELIS TECHNOLOGIES INC
Sale(S)Direct1.6K shares at avg. $157.44$250K - Jun 3, 2026RMBS
RAMBUS INC
Sale(S)Direct5K shares at avg. $170.15$851K - May 15, 2026ACLS
AXCELIS TECHNOLOGIES INC
Award(A)Direct1.4K shares- - May 8, 2026TER
TERADYNE, INC
Award(A)Direct668 shares- - May 8, 2026SNDK
Sandisk Corp
Sale(S)Direct579 shares at avg. $1503.11$870K - May 8, 2026RMBS
RAMBUS INC
Sale(S)Direct9.8K shares at avg. $130.18$1.3M - Apr 1, 2026RMBS
RAMBUS INC
Award(A)Direct2.2K shares- - Dec 3, 2025SNDK
Sandisk Corp
Sale(S)Direct1.3K shares at avg. $195.14$248K - Nov 18, 2025SNDK
Sandisk Corp
Award(A)Direct979 shares- - Sep 11, 2025RMBS
RAMBUS INC
Sale(S)Direct7.5K shares at avg. $85.63$642K - Aug 8, 2025RMBS
RAMBUS INC
Sale(S)Direct7.5K shares at avg. $73.53$551K - Jul 1, 2025TER
TERADYNE, INC
Award(A)Direct2.1K shares- - May 15, 2025ACLS
AXCELIS TECHNOLOGIES INC
Award(A)Direct3.6K shares- - Apr 1, 2025RMBS
RAMBUS INC
Award(A)Direct3.8K shares- - Mar 3, 2025SNDK
Sandisk Corp
Award(A)Direct3.8K shares- - Feb 19, 2025RMBS
RAMBUS INC
Sale(S)Direct4.6K shares at avg. $66.74$309K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 3, 2026 |  ACLS AXCELIS TECHNOLOGIES INC | Sale(S) | 1,586 | $157.44 | $249,703 | Direct |
| Jun 3, 2026 |  RMBS RAMBUS INC | Sale(S) | 5,000 | $170.15 | $850,750 | Direct |
| May 15, 2026 | ACLS AXCELIS TECHNOLOGIES INC | Award(A) | 1,440 | - | $0 | Direct |
| May 8, 2026 |  TER TERADYNE, INC | Award(A) | 668 | - | $0 | Direct |
| May 8, 2026 |  SNDK Sandisk Corp | Sale(S) | 579 | $1503.11 | $870,301 | Direct |
| May 8, 2026 | RMBS RAMBUS INC | Sale(S) | 9,824 | $130.18 | $1,278,888 | Direct |
| Apr 1, 2026 | RMBS RAMBUS INC | Award(A) | 2,223 | - | $0 | Direct |
| Dec 3, 2025 | SNDK Sandisk Corp | Sale(S) | 1,271 | $195.14 | $248,027 | Direct |
| Nov 18, 2025 | SNDK Sandisk Corp | Award(A) | 979 | - | - | Direct |
| Sep 11, 2025 | RMBS RAMBUS INC | Sale(S) | 7,500 | $85.63 | $642,226 | Direct |
| Aug 8, 2025 | RMBS RAMBUS INC | Sale(S) | 7,500 | $73.53 | $551,448 | Direct |
| Jul 1, 2025 | TER TERADYNE, INC | Award(A) | 2,132 | - | - | Direct |
| May 15, 2025 | ACLS AXCELIS TECHNOLOGIES INC | Award(A) | 3,586 | - | - | Direct |
| Apr 1, 2025 | RMBS RAMBUS INC | Award(A) | 3,824 | - | - | Direct |
| Mar 3, 2025 | SNDK Sandisk Corp | Award(A) | 3,771 | - | - | Direct |
| Feb 19, 2025 | RMBS RAMBUS INC | Sale(S) | 4,625 | $66.74 | $308,681 | Direct |
1-16 of 16 transactions
About Sayiner Necip
Sayiner Necip (SEC CIK 0001338515) files insider reports with the SEC as Director of AXCELIS TECHNOLOGIES INC (ACLS), Director of RAMBUS INC (RMBS) and Director of TERADYNE, INC (TER). Signal8 also holds filings tied to 1 other company.
Signal8 holds 18 ownership filings by Sayiner Necip (2 Form 3, 16 Form 4), filed between Feb 19, 2025 and Jun 4, 2026. Those filings report 16 transactions, from Feb 19, 2025 to Jun 3, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Sayiner Necip's filings is in SAN JOSE, CA.
Recent filings by Sayiner Necip
- Jun 3, 2026: Open-market sale of ACLS shares (Form 4, code S).
- Jun 3, 2026: Open-market sale of RMBS shares (Form 4, code S).
- May 15, 2026: Grant or award of ACLS shares (Form 4, code A).
- May 8, 2026: Grant or award of TER shares (Form 4, code A).
- May 8, 2026: Open-market sale of SNDK shares (Form 4, code S).
Other insiders filing for AXCELIS TECHNOLOGIES INC (ACLS)
- Redinbo Greg, EVP and Chief Strategy Officer
- Tatnall Christopher, EVP Global Customer Operations
- Ryzhik David, SVP Interim CFO
- Blumenstock Gerald M, EVP, Research, Dev. & Eng.
- Mahoney Robert John, EVP Global Operations
- Sutton Todd, VP Corporate Controller