Form 144
Proposed Insider Sale
2026-06-01
RMBS Form 144 filed for proposed insider sale by STANG FAMILY TRUST (5,000 shares) ~$1.46M
STANG FAMILY TRUST filed a Form 144 with the SEC indicating intent to sell RMBS (RAMBUS INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.
Filing: Form 144 (Proposed Sale Notice)
Insider: STANG FAMILY TRUST
Shares: 5,000
Est. Value: $1.46M
Form 4
Insider Selling
2026-05-27
RMBS insider Higashi Emiko (Director) sold 5,000 shares (~$787.9K)
Higashi Emiko, listed as Director at RAMBUS INC, reported an open-market sale of 5,000 RMBS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
Filing: Form 4 (Insider Transaction)
Insider: Higashi Emiko (Director)
Shares: 5,000
Est. Value: $787.9K
Form 144
Proposed Insider Sale
2026-05-26
RMBS Form 144 filed for proposed insider sale by EMIKO HIGASHI (5,000 shares) ~$1.58M
EMIKO HIGASHI filed a Form 144 with the SEC indicating intent to sell RMBS (RAMBUS INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.
Filing: Form 144 (Proposed Sale Notice)
Insider: EMIKO HIGASHI
Shares: 5,000
Est. Value: $1.58M
Form 4
Insider Selling
2026-05-26
RMBS insider FAN XIANZHI SEAN (EVP, COO) sold 37,914 shares (~$5.75M)
FAN XIANZHI SEAN, listed as EVP, COO at RAMBUS INC, reported an open-market sale of 37,914 RMBS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
Filing: Form 4 (Insider Transaction)
Insider: FAN XIANZHI SEAN (EVP, COO)
Shares: 37,914
Est. Value: $5.75M
Form 144
Large Proposed Insider Sale
2026-05-26
RMBS Form 144 filed for proposed insider sale by XIANZHI S FAN (37,914 shares) ~$11.50M
XIANZHI S FAN filed a Form 144 with the SEC indicating intent to sell RMBS (RAMBUS INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.
Filing: Form 144 (Proposed Sale Notice)
Insider: XIANZHI S FAN
Shares: 37,914
Est. Value: $11.50M
Form 4
Insider Selling
2026-05-26
RMBS insider Shinn John (SVP, General Counsel) sold 1,000 shares (~$143.6K)
Shinn John, listed as SVP, General Counsel at RAMBUS INC, reported an open-market sale of 1,000 RMBS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
Filing: Form 4 (Insider Transaction)
Insider: Shinn John (SVP, General Counsel)
Shares: 1,000
Est. Value: $143.6K
Form 144
Proposed Insider Sale
2026-05-22
RMBS Form 144 filed for proposed insider sale by JOHN SHINN (1,000 shares) ~$287.3K
JOHN SHINN filed a Form 144 with the SEC indicating intent to sell RMBS (RAMBUS INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.
Filing: Form 144 (Proposed Sale Notice)
Insider: JOHN SHINN
Shares: 1,000
Est. Value: $287.3K
Form 4
Insider Selling
2026-05-11
RMBS insider Sayiner Necip (Director) sold 9,824 shares (~$1.28M)
Sayiner Necip, listed as Director at RAMBUS INC, reported an open-market sale of 9,824 RMBS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
Filing: Form 4 (Insider Transaction)
Insider: Sayiner Necip (Director)
Shares: 9,824
Est. Value: $1.28M
Form 4
Insider Selling
2026-05-11
RMBS insider LAUB STEVEN (Director) sold 1,500 shares (~$188.3K)
LAUB STEVEN, listed as Director at RAMBUS INC, reported an open-market sale of 1,500 RMBS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
Filing: Form 4 (Insider Transaction)
Insider: LAUB STEVEN (Director)
Shares: 1,500
Est. Value: $188.3K
Form 144
Proposed Insider Sale
2026-05-08
RMBS Form 144 filed for proposed insider sale by NECIP SAYINER (9,824 shares) ~$2.56M
NECIP SAYINER filed a Form 144 with the SEC indicating intent to sell RMBS (RAMBUS INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.
Filing: Form 144 (Proposed Sale Notice)
Insider: NECIP SAYINER
Shares: 9,824
Est. Value: $2.56M
Form 144
Proposed Insider Sale
2026-05-07
RMBS Form 144 filed for proposed insider sale by STEVEN LAUB (1,500 shares) ~$376.6K
STEVEN LAUB filed a Form 144 with the SEC indicating intent to sell RMBS (RAMBUS INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.
Filing: Form 144 (Proposed Sale Notice)
Insider: STEVEN LAUB
Shares: 1,500
Est. Value: $376.6K
Form 4
Tax / Compensation Filing
2026-05-04
RMBS insider Form 4 filed for equity award, exercise, or tax withholding
Gagneja Sumeet (SVP, CFO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Filing: Form 4 (Insider Transaction)
Insider: Gagneja Sumeet (SVP, CFO)
Shares: 41,320
Form 8-K
Material Company Update
2026-04-29
RMBS filed 8-K — material company event
RAMBUS INC filed an 8-K with the SEC reporting a material event. Filing excerpt: XBRL Viewer
Filing: 8-K (Material Event)
Form 10-Q
Quarterly Report
2026-04-28
RMBS filed Quarterly Report (10-Q)
RAMBUS INC filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.
Filing: 10-Q (Quarterly Report)
Form 8-K
Material Company Update
2026-04-27
RMBS filed 8-K — material company event
RAMBUS INC filed an 8-K with the SEC reporting a material event. Filing excerpt: XBRL Viewer
Filing: 8-K (Material Event)