Security record · archived quarter
OSIS
OSI Systems, Inc. · Technology · Hardware, Equipment & Parts
13Tracked holders
—Δ holders
930.86KShares held
$128.02MReported value
+0New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 110 | -3 | 13.36M | $2.86B | +7 | −10 |
| Q1 2026 | 116 | +4 | 14.03M | $3.64B | +7 | −4 |
| Q4 2025 | 111 | -2 | 15.72M | $3.86B | +2 | −3 |
| Q3 2025 | 18 | -1 | 8.25M | $2.06B | — | −2 |
| Q2 2025 | 17 | +4 | 7.65M | $1.72B | +4 | — |
| Q1 2025 | 10 | -2 | 1.57M | $304.91M | +1 | −3 |
| Q4 2024 | 12 | -2 | 1.63M | $273.45M | — | −2 |
| Q3 2024 | 13 | 0 | 942.05K | $143.04M | — | — |
| Q2 2024 | 13 | — | 930.86K | $128.02M | — | — |
Who holds it · Q2 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 374.37K | — | $51.49M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 374.37K | — | $51.49M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | PRIMECAP Management ✦ | 280.62K | — | $38.59M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Norges Bank ✦ (passive) | 90.86K | — | $12.49M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Marshall Wace ✦ | 50.70K | — | $6.97M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 37.63K | — | $5.18M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Renaissance Technologies ✦ | 25.68K | — | $3.53M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | Two Sigma Investments ✦ | 16.84K | — | $2.32M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Bridgewater Associates ✦ | 15.77K | — | $2.17M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 10.75K | — | $1.48M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Citadel Advisors ✦ | 10.75K | — | $1.48M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | T. Rowe Price ✦ | 10.26K | — | $1.41M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 9.31K | — | $1.28M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 9.31K | — | $1.28M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | AQR Capital Management ✦ | 9.31K | — | $1.28M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | Millennium Management ✦ | 4.97K | — | $683,199 | 0.0% | n/c | 1 | SEC ↗ |
| 17 | Gotham Asset Management ✦ | 3.10K | — | $425,762 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 7 holders, 15.77M shares, $56.30M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Aug 13
SC 13G — Janus Henderson Group Ltd.
Aug 06
SC 13G/A — FMR LLC
Jul 31
SC 13G — VANGUARD CAPITAL MANAGEMENT LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2024 ·
Methodology ·
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