ATOM
name pending profile ingest
Momentum inputs (comparable managers):
holder breadth +14.3% ·
share flow -16.2% ·
net new positions +12.5%
· formula
Ownership fragmentation: more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 54 | +5 | 15.41M | $134.00M | +9 | −5 |
| Q1 2026 | 51 | +4 | 11.65M | $44.36M | +6 | −2 |
| Q4 2025 | 47 | 0 | 7.39M | $16.34M | +1 | −1 |
| Q3 2025 | 14 | 0 | 5.43M | $24.01M | +2 | −2 |
| Q2 2025 | 11 | 0 | 5.46M | $27.53M | n/a | n/a |
| Q1 2025 | 8 | +2 | 1.61M | $6.43M | +2 | n/a |
| Q4 2024 | 6 | -3 | 718.15K | $8.33M | n/a | −3 |
| Q3 2024 | 8 | +1 | 704.80K | $1.85M | +1 | n/a |
| Q2 2024 | 7 | n/a | 841.24K | $3.21M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 308.46K | +5.0% | $811,433 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 2 | Millennium Management ✦ | 118.55K | -44.5% | $311,786 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | Citadel Advisors ✦ | 73.23K | +1.6% | $192,590 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Renaissance Technologies ✦ | 57.50K | -57.2% | $151,225 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | Two Sigma Investments ✦ | 56.85K | +62.5% | $149,515 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 45.70K | +36.4% | $121,000 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | D. E. Shaw & Co. ✦ | 30.97K | -47.5% | $81,456 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | Marshall Wace ✦ | 13.54K | New | $35,597 | 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
| Marshall Wace | $35,597 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 106 holders, 16.08M shares, $60.91M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 6.31K sh · $24,427
Officer, Director · 1.99K sh · $8,051
Officer, Director · 4.51K sh · $18,286
Officer, Director · 5.45K sh · $22,056
Officer · 1.00K sh · $4,050
Officer · 2.19K sh · $8,878
Officer · 889 sh · $3,600
Officer · 1.51K sh · $6,136
Officer · 771 sh · $3,123
Officer · 2.52K sh · $10,186
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology