SEC Form 4
GSI Technology (GSIT) insider trading
In the 12 months to Nov 14, 2026, 7 GSIT insiders reported open-market sales of $6.7M across 15 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $6.7M
- 15 filings · 7 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 2 of 15
- $1.8M of $6.7M sold (26%)
Who traded GSIT, and when
- Sale
- Sale, pre-arranged (10b5-1)
GSIT daily close from Nov 14, 2025 to Nov 13, 2026, between $3.02 and $12.26, last $3.09. 15 sale and 0 purchase filings by 7 insiders, marked at their filing dates. Lee-Lean Shu, Pres., CEO and Chairman: sold $2.4M across 3 filings, first filed Mar 17, 2026, last May 14, 2026. Patrick T. Chuang, Senior VP, Memory Design: sold $1.8M across 4 filings, first filed Mar 2, 2026, last Jun 3, 2026. Bor-Tay Wu, VP, Taiwan Operations: sold $1.0M across 3 filings, first filed Mar 10, 2026, last Jun 3, 2026. Ping Tak Wu, VP, U.S. Operations: sold $457.4K across 2 filings, first filed May 14, 2026, last May 27, 2026. Douglas Schirle, CFO: sold $452.9K across 1 filing, first filed May 14, 2026, last May 14, 2026. Didier Lasserre, VP, Sales: sold $279.2K across 1 filing, first filed May 22, 2026, last May 22, 2026. Avidan Akerib, VP, Associative Computing: sold $229.5K across 1 filing, first filed May 13, 2026, last May 13, 2026.
Largest mark · tap a row for others
Lee-Lean Shu · Pres., CEO and Chairman
Filing 1 of 2 within a week · $1,769,185 total
Sale $1,640,207
143,062 shares at $11.47 avg
Filed May 12, 2026 · traded May 11
Pre-arranged (10b5-1) · close on filing date $11.54
Lee-Lean Shu · Pres., CEO and Chairman
Pres., CEO and Chairman
$2.4M soldPatrick T. Chuang · Senior VP, Memory Design
Senior VP, Memory Design
$1.8M soldBor-Tay Wu · VP, Taiwan Operations
VP, Taiwan Operations
$1.0M soldPing Tak Wu · VP, U.S. Operations
VP, U.S. Operations
$457.4K soldDouglas Schirle · CFO
CFO
$452.9K soldDidier Lasserre · VP, Sales
VP, Sales
$279.2K soldAvidan Akerib · VP, Associative Computing
VP, Associative Computing
$229.5K soldOpen-market trades
15 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Lee-Lean Shu | Pres., CEO and Chairman | $2.4M | — | 3 | 72% of sales | |
| Patrick T. Chuang | Senior VP, Memory Design | $1.8M | — | 4 | — | |
| Bor-Tay Wu | VP, Taiwan Operations | $1.0M | — | 3 | — | |
| Ping Tak Wu | VP, U.S. Operations | $457.4K | — | 2 | — | |
| Douglas Schirle | CFO | $452.9K | — | 1 | — | |
| Didier Lasserre | VP, Sales | $279.2K | — | 1 | — | |
| Avidan Akerib | VP, Associative Computing | $229.5K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Bor-Tay Wu VP, Taiwan Operations | Sale | 20,000 | $10.93 | $218.7K | 912,500 | |
traded | Patrick T. Chuang Senior VP, Memory Design | Sale | 80,000 | $11.15 | $891.6K | 15,166 | |
traded | Ping Tak Wu VP, U.S. Operations | Sale | 30,000 | $11.01 | $330.4K | 148,441 | |
traded | Bor-Tay Wu VP, Taiwan Operations | Sale | 40,000 | $10.93 | $437.4K | 912,500 | |
traded | Didier Lasserre VP, Sales | Sale | 30,000 | $9.31 | $279.2K | 310,907 | |
traded | Douglas Schirle CFO | Sale | 40,000 | $11.32 | $452.9K | 69,046 | |
traded | Lee-Lean Shu Pres., CEO and Chairman | SalePre-arranged (10b5-1) | 10,313 | $12.51 | $129.0K | 530,939 | |
traded | Ping Tak Wu VP, U.S. Operations | Sale | 11,763 | $10.80 | $127.0K | 147,647 | |
traded | Avidan Akerib VP, Associative Computing | Sale | 20,000 | $11.47 | $229.5K | 23,307 | |
traded | Patrick T. Chuang Senior VP, Memory Design | Sale | 40,000 | $10.68 | $427.1K | 15,166 | |
traded | Lee-Lean Shu Pres., CEO and Chairman | SalePre-arranged (10b5-1) | 143,062 | $11.47 | $1.6M | Multiple accounts | |
traded | Lee-Lean Shu Pres., CEO and Chairman | Sale | 67,251 | $10.02 | $673.6K | 1,982,417 | |
traded | Patrick T. Chuang Senior VP, Memory Design | Sale | 40,000 | $8.56 | $342.4K | 15,166 | |
traded | Bor-Tay Wu VP, Taiwan Operations | Sale | 40,000 | $8.66 | $346.5K | 912,500 | |
traded | Patrick T. Chuang Senior VP, Memory Design | Sale | 20,000 | $8.37 | $167.3K | 15,166 |
GET /stocks/filings/vX/form-4?tickers=GSIT&filing_date.gte=2025-11-14&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"GSIT"
],
"issuer_cik": "0001126741",
"owner_cik": "0002009849",
"accession_number": "0002009849-26-000007",
"form_type": "4",
"filing_date": "2026-06-03",
"period_of_report": "2026-06-01",
"issuer_name": "GSI TECHNOLOGY INC",
"issuer_trading_symbol": "GSIT",
"owner_name": "CHUANG PATRICK T",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Senior VP, Memory Design",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-06-02",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 40000,
"transaction_price_per_share": 10.9766,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 15166,
"transaction_value": 439064,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F2",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.58 to $11.255, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4."
}
]
},
{
"tickers": [
"GSIT"
],
"issuer_cik": "0001126741",
"owner_cik": "0002009849",
"accession_number": "0002009849-26-000007",
"form_type": "4",
"filing_date": "2026-06-03",
"period_of_report": "2026-06-01",
"issuer_name": "GSI TECHNOLOGY INC",
"issuer_trading_symbol": "GSIT",
"owner_name": "CHUANG PATRICK T",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Senior VP, Memory Design",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-06-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 40000,
"transaction_price_per_share": 11.3146,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 15166,
"transaction_value": 452584,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.26 to $11.423, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 25 records
- Option exercises25 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has GSI Technology's CEO sold stock?
Yes. Lee-Lean Shu (CEO) sold 220,626 shares ($2.4M) between Mar 2026 and May 2026, $1.8M of it under a pre-arranged 10b5-1 plan.
How current is GSIT’s insider data?
These are GSIT Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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