Comparable stake leader
MORGAN STANLEY
SEC ownership of GIGAMEDIA Ltd
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001105101.
Disclosed value leader
MORGAN STANLEY
Comparable rows
0/9
Latest evidence
31 Mar 2026
- Public ticker
- GIGM on Nasdaq
- Parsed ownership sources
-
13F and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
MORGAN STANLEY
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001105101
- Issuer location
- Taipei, Taiwan
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of GIGAMEDIA Ltd (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
MORGAN STANLEY
Disclosed value leader
MORGAN STANLEY
Comparable rows
0/9
Latest evidence
31 Mar 2026
13F
3/4/5
Highest disclosed value: $282,577
9 rows are not safely comparable across share classes.
Showing 1-8 of 9 holder rows.
Quick read
MORGAN STANLEY has the largest disclosed position value at $282.6K.
0 of 9 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens MORGAN STANLEY's linked filing trail.
Disclosed position value
Top 5
MORGAN STANLEY
$282.6K
OSAIC HOLDINGS, INC.
$244.1K
ACADIAN ASSET MANAGEMENT LLC
$70K
SUSQUEHANNA INTERNATIONAL GROUP, LLP
$16.7K
BNP PARIBAS FINANCIAL MARKETS
$4.1K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 9 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| MORGAN STANLEY |
13F
Company
|
—
class O/S missing
|
$282,577
197,606 shares
|
— | 31 Mar 2026 |
| OSAIC HOLDINGS, INC. |
13F
Company
|
—
class O/S missing
|
$244,147
170,733 shares
|
— | 31 Mar 2026 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$70,000
49,607 shares
|
— | 31 Mar 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
Company
|
—
class O/S missing
|
$16,682
11,666 shares
|
— | 31 Mar 2026 |
| BNP PARIBAS FINANCIAL MARKETS |
13F
Company
|
—
class O/S missing
|
$4,147
2,900 shares
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
—
class O/S missing
|
$506
354 shares
|
— | 31 Mar 2026 |
| SBI Securities Co., Ltd. |
13F
Company
|
—
class O/S missing
|
$503
352 shares
|
— | 31 Mar 2026 |
| WELLS FARGO & COMPANY/MN |
13F
Company
|
—
class O/S missing
|
$17
12 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 07 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-7 of 7 reporting-owner rows connected to GIGAMEDIA Ltd. Open a relationship link for the CIK-to-CIK filing trail.
Rows
7
Largest Forms 3/4/5 holder
Lin Wan-Wan
Net 12M change
$0
Latest report
18 Mar 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Lin Wan-Wan | Director | Mixed | 18 Mar 2026 | |||
| Tsai Chih-Hong | Director | Mixed | 18 Mar 2026 | |||
| Liao Ying-Chih | Director | Mixed | 18 Mar 2026 | |||
| Liu Nick Chia-En | Director | Mixed | 18 Mar 2026 | |||
| Huang Ping Chang John | Director | Mixed | 18 Mar 2026 | |||
| Hong Chin Fock | Director | Mixed | 18 Mar 2026 | |||
| Huang Cheng-Ming | CEO & CFO, Director | Mixed | 18 Mar 2026 |
Recent insider transactions for GIGAMEDIA Ltd
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Huang Cheng-Ming | GIGM | Ordinary Shares | 0 | 1,073,566 | 18 Mar 2026 | By Pacific Star Universal Group Ltd |
* marks a reported price that did not pass the local price check.