Position in OSIS
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$28,301,507
+$2,438,423 QoQ
Shares Held
106,593
+5.1% QoQ
Ownership
0.647%
of shares outstanding
% of Portfolio
0.84%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2023
11 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in OSIS Over Time
Shares Held
Position Value (USD)
Position in Electronic Components
Technology · as of Mar 31, 2026OBERWEIS ASSET MANAGEMENT INC/ holds $85,782,366 across 5 Electronic Components names. OSIS ranks #1 (33.0% of the industry book) .
All Filings in OSIS
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11 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $28,301,507 | 106,593 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $25,863,084 | 101,400 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $25,272,936 | 101,400 | Shares | Sole | 2025-11-17 | |
| 2025-06-30 | $24,509,740 | 109,000 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $19,511,736 | 100,400 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $16,809,972 | 100,400 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $10,506,636 | 69,200 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $9,516,384 | 69,200 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $7,897,946 | 55,300 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $4,555,465 | 35,300 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $2,998,216 | 25,400 | Shares | Sole | 2023-11-14 | |
| No filing history on record for this holder in this stock. | ||||||