PDF Solutions Inc
PDFS- 交易所
- Nasdaq
- 產業
- Services-Prepackaged Software
- SEC CIK
- 0001120914
近 90 天，PDF Solutions Inc 內部人申報 0 筆公開市場買進、1 筆賣出；2026 年第 2 季末有 284 家機構在 13F 申報持有，市值合計 $27.5 億；沒有大師持有。
持有 PDFS 5% 以上的大股東
最新一份 Schedule 13D 或 13G 申報持有 PDF Solutions Inc 5% 以上的持有人，依持股比例由大到小；變化是跟這位持有人的上一份申報比。
| 持有人 | 最新表單 | 持股 | 變化 | 首次申報 | 最新申報 | 原文 |
|---|---|---|---|---|---|---|
| Kibarian John Kachig | 13G/A | 6.50%股數 256.2 萬 | 0.00 個百分點原本 6.50% | 2021/2/166 份 | 2026/2/17 | SEC |
| Wasatch Advisors Inc | 13G | 6.30%股數 264.7 萬 | 新申報 | 2026/10/91 份 | 2026/10/9 | SEC |
| Needham Investment Management LLC | 13G | 5.10%股數 202.3 萬 | +0.20 個百分點原本 4.90% | 2025/11/133 份 | 2026/5/14 | SEC |
持股是每位持有人最新一份申報的數字。最後一份是舊格式（2024 年 12 月 18 日以前）的持有人沒有持股比例紀錄，不列在這裡；公司被收購或下市之後，持有人通常就不再申報。
13D 與 13G 申報
PDF Solutions Inc 的 30 份 Schedule 13D、13G 申報，由新到舊，包括沒有持股比例的舊格式申報。
| 申報時間（美東） | 申報人 | 表單 | 持股 | 變化 | 事件日 | 原文 |
|---|---|---|---|---|---|---|
| 2026/10/916:09 ET | Wasatch Advisors Inc | 13G | 6.30%股數 264.7 萬 | 新申報 | 2026/9/30 | SEC |
| 2026/5/2721:00 ET | Advantest Corp等 2 位 | 13G/A | 0.00%股數 0 | –低於 5% | 2026/5/15 | SEC |
| 2026/5/1418:39 ET | Needham Investment Management LLC等 3 位 | 13G | 5.10%股數 202.3 萬 | +0.20 個百分點原本 4.90% | 2026/3/31 | SEC |
| 2026/3/2711:22 ET | Vanguard Group Inc | 13G/A | 0.00%股數 0 | –低於 5% | 2026/3/13 | SEC |
| 2026/2/1715:55 ET | Kibarian John Kachig | 13G/A | 6.50%股數 256.2 萬 | 0.00 個百分點原本 6.50% | 2025/12/31 | SEC |
| 2026/2/1317:48 ET | Needham Investment Management LLC等 6 位 | 13G/A | 4.90%股數 196.5 萬 | −0.20 個百分點原本 5.10%低於 5% | 2025/12/31 | SEC |
| 2025/11/1317:48 ET | Needham Investment Management LLC等 6 位 | 13G | 5.10%股數 201.9 萬 | 新申報 | 2025/9/30 | SEC |
| 2025/2/1218:54 ET | Kibarian John Kachig | 13G/A | 6.50%股數 251.2 萬 | – | 2025/2/12 | SEC |
| 2024/2/13 | Kibarian John Kachig | 13G/A舊制 | – | – | – | SEC |
| 2024/2/13 | Vanguard Group Inc | 13G/A舊制 | – | – | – | SEC |
| 2024/1/2316:14 ET | BlackRock Inc. | 13G/A舊制 | – | – | – | SEC |
| 2023/12/11 | Invesco Ltd. | 13G/A舊制 | – | – | – | SEC |
| 2023/8/7 | Cowen Prime Advisors LLC | 13G舊制 | – | – | – | SEC |
| 2023/2/14 | Kibarian John Kachig | 13G/A舊制 | – | – | – | SEC |
| 2023/2/9 | Vanguard Group Inc | 13G/A舊制 | – | – | – | SEC |
| 2023/2/3 | Cowen Prime Advisors LLC | 13G舊制 | – | – | – | SEC |
| 2023/2/2 | Invesco Ltd. | 13G/A舊制 | – | – | – | SEC |
| 2023/1/2315:52 ET | BlackRock Inc. | 13G/A舊制 | – | – | – | SEC |
| 2022/2/14 | Price T Rowe Associates Inc | 13G/A舊制 | – | – | – | SEC |
| 2022/2/11 | Kibarian John Kachig | 13G/A舊制 | – | – | – | SEC |
| 2022/2/10 | Vanguard Group Inc | 13G/A舊制 | – | – | – | SEC |
| 2022/2/10 | Invesco Ltd. | 13G/A舊制 | – | – | – | SEC |
| 2022/2/9 | Cowen Prime Advisors LLC | 13G舊制 | – | 新申報 | – | SEC |
| 2022/1/2813:54 ET | BlackRock Inc. | 13G/A舊制 | – | – | – | SEC |
| 2021/2/16 | Kibarian John Kachig | 13G/A舊制 | – | – | – | SEC |
| 2021/2/16 | Dimensional Fund Advisors LP | 13G/A舊制 | – | – | – | SEC |
| 2021/2/16 | Price T Rowe Associates Inc | 13G/A舊制 | – | – | – | SEC |
| 2021/2/12 | Invesco Ltd. | 13G/A舊制 | – | – | – | SEC |
| 2021/2/10 | Vanguard Group Inc | 13G/A舊制 | – | – | – | SEC |
| 2021/1/2618:52 ET | BlackRock Inc. | 13G/A舊制 | – | – | – | SEC |
Form 144：內部人預計賣出
高階主管、董事與其他關係人預計賣出 PDF Solutions Inc 股票的 16 份通知，由新到舊。
| 申報時間（美東） | 賣方 | 預計賣出股數 | 市值 | 預計賣出日 | 券商 | 原文 |
|---|---|---|---|---|---|---|
| 2026/11/1216:47 ET | Joseph R Bronson董事 | 1.00 萬 | $40.8 萬 | 2026/11/12 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| 2026/8/3116:06 ET | Andrzej Strojwas高階主管 | 3,394 | $15.1 萬 | 2026/8/31 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| 2026/8/1216:10 ET | Shuo Zhang董事 | 1,501 | $7.73 萬 | 2026/8/12 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| 2024/12/1617:31 ET | Strojwas Andrzej高階主管 | 8,687 | $26.8 萬 | 2024/12/16 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2024/12/1116:25 ET | Nancy Erba Family Living Trust董事 | 2,000 | $6.16 萬 | 2024/12/11 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| 2024/11/1318:18 ET | Strojwas Andrzej高階主管 | 6,253 | $20.9 萬 | 2024/11/13 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2024/6/317:27 ET | Zhang Shuo董事 | 5,500 | $19.5 萬 | 2024/6/3 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2024/5/1716:33 ET | Raza Adnan高階主管 | 9,647 | $32.3 萬 | 2024/5/17 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2024/5/1617:40 ET | Raza Adnan高階主管 | 6,161 | $20.3 萬 | 2024/5/16 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2024/5/1517:59 ET | Raza Adnan高階主管 | 1.17 萬 | $40.3 萬 | 2024/5/15 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2024/5/1419:47 ET | Strojwas Andrzej高階主管 | 6,253 | $23.0 萬 | 2024/5/14 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2024/2/2316:31 ET | Li Revocable Trust董事 | 1.12 萬 | $38.6 萬 | 2024/2/23 | UBS Financial Services Inc | SEC |
| 2024/2/2116:28 ET | Bronson Joseph R董事 | 1.50 萬 | $51.0 萬 | 2024/2/21 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2023/12/1218:21 ET | Gustafson Michael B高階主管 | 5,750 | $18.0 萬 | 2023/12/12 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| 2023/11/2916:41 ET | Nancy Erba Ttee Nancy Erba Family Living Trust董事 | 1,800 | $5.50 萬 | 2023/11/29 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| 2023/8/1816:39 ET | Zhang Shuo董事 | 3,047 | $10.3 萬 | 2023/8/18 | ETRADE FINANCIAL CORPORATION | SEC |