RGEN
Repligen Corporation · Healthcare · Medical - Instruments & Supplies
Momentum inputs (comparable managers):
holder breadth -21.4% ·
share flow +11.1% ·
net new positions -20.0%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 126 | +8 | 40.16M | $5.47B | +16 | −7 |
| Q1 2026 | 120 | -2 | 41.26M | $4.90B | +8 | −11 |
| Q4 2025 | 122 | -3 | 43.70M | $7.16B | +1 | −3 |
| Q3 2025 | 21 | +2 | 26.22M | $3.51B | +3 | −2 |
| Q2 2025 | 17 | +1 | 26.68M | $3.32B | +2 | −1 |
| Q1 2025 | 13 | +1 | 13.27M | $1.69B | +1 | — |
| Q4 2024 | 12 | 0 | 12.86M | $1.85B | +1 | −1 |
| Q3 2024 | 11 | -3 | 9.29M | $1.38B | — | −3 |
| Q2 2024 | 14 | — | 8.37M | $1.05B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | T. Rowe Price ✦ | 6.39M | +38.7% | $951.29M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 2 | T. Rowe Price ✦ | 6.39M | +38.7% | $951.29M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 942.37K | -0.3% | $140.28M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 942.37K | -0.3% | $140.28M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | Citadel Advisors ✦ | 515.86K | +14970.4% | $76.77M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 6 | Citadel Advisors ✦ | 515.86K | +14970.4% | $76.77M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 7 | Two Sigma Investments ✦ | 436.16K | +104.7% | $64.91M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 8 | Point72 Asset Management ✦ | 324.43K | +3.0% | $48.28M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 9 | Marshall Wace ✦ | 237.22K | -34.9% | $35.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | Marshall Wace ✦ | 237.22K | -34.9% | $35.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | Norges Bank ✦ (passive) | 140.47K | -31.4% | $20.91M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | Millennium Management ✦ | 119.41K | -84.2% | $17.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | Adage Capital Partners ✦ | 100.00K | +100.0% | $14.88M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | PRIMECAP Management ✦ | 54.73K | 0.0% | $8.14M | 0.0% | Held | 2 | SEC ↗ |
| 15 | Gotham Asset Management ✦ | 31.24K | +76.1% | $4.65M | 0.0% | ▲ Add | 2 | 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
| Wellington Management | $98.84M | was 0.0% |
| Renaissance Technologies | $5.32M | was 0.0% |
| D. E. Shaw & Co. | $802,876 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 436 holders, 65.14M shares, $6.86B 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, Director · 5.43K sh · $976,680
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology