Security record · archived quarter
OSIS
OSI Systems, Inc. · Technology · Hardware, Equipment & Parts
17Tracked holders
+4Δ holders
7.65MShares held
$1.72BReported value
+4New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +30.0% ·
share flow +3.7% ·
net new positions +20.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
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 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 2.50M | — | $563.21M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 2.11M | — | $474.98M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 2.11M | — | $474.98M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 2.11M | — | $474.98M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 2.11M | — | $474.98M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 2.11M | — | $474.98M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Fidelity (FMR) ✦ | 1.19M | — | $267.74M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Fidelity (FMR) ✦ | 1.19M | — | $267.74M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Fidelity (FMR) ✦ | 1.19M | — | $267.74M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Fidelity (FMR) ✦ | 1.19M | — | $267.74M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | State Street Global Advisors ✦ (passive) | 666.31K | -8.3% | $149.83M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 381.13K | +0.6% | $85.71M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 381.13K | +0.6% | $85.71M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 28 | PRIMECAP Management ✦ | 321.42K | -3.9% | $72.27M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 29 | Millennium Management ✦ | 224.52K | New | $50.49M | 0.0% | New | 1 | SEC ↗ |
| 30 | Citadel Advisors ✦ | 60.49K | New | $13.60M | 0.0% | New | 1 | SEC ↗ |
| 31 | T. Rowe Price ✦ | 54.11K | +351.5% | $12.17M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 32 | T. Rowe Price ✦ | 54.11K | +351.5% | $12.17M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 33 | Point72 Asset Management ✦ | 32.05K | +77.5% | $7.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 34 | Two Sigma Investments ✦ | 28.45K | New | $6.40M | 0.0% | New | 1 | SEC ↗ |
| 35 | Marshall Wace ✦ | 21.00K | -53.2% | $4.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 36 | AQR Capital Management ✦ | 16.85K | +44.6% | $3.79M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 37 | AQR Capital Management ✦ | 16.85K | +44.6% | $3.79M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 38 | AQR Capital Management ✦ | 16.85K | +44.6% | $3.79M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 39 | AQR Capital Management ✦ | 16.85K | +44.6% | $3.79M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 40 | AQR Capital Management ✦ | 16.85K | +44.6% | $3.79M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 41 | Norges Bank ✦ (passive) | 13.45K | -49.8% | $3.02M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 42 | D. E. Shaw & Co. ✦ | 12.50K | -1.6% | $2.81M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 43 | Gotham Asset Management ✦ | 4.39K | +41.8% | $986,911 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 44 | GAMCO Investors ✦ | 3.56K | New | $801,401 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Millennium Management | $50.49M | 0.0% |
| Citadel Advisors | $13.60M | 0.0% |
| Two Sigma Investments | $6.40M | 0.0% |
| GAMCO Investors | $801,401 | 0.0% |
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 2025 ·
Methodology ·
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