Security record · archived quarter
RGEN
Repligen Corporation · Healthcare · Medical - Instruments & Supplies
17Tracked holders
+1Δ holders
26.68MShares held
$3.32BReported value
+2New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +6.2% ·
share flow +2.5% ·
net new positions +5.9%
— 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 | 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 | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | T. Rowe Price ✦ | 6.60M | -12.7% | $821.40M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 2 | T. Rowe Price ✦ | 6.60M | -12.7% | $821.40M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 6.08M | — | $756.04M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 5.08M | — | $631.50M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | The Vanguard Group ✦ (passive) | 5.08M | — | $631.50M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | The Vanguard Group ✦ (passive) | 5.08M | — | $631.50M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | The Vanguard Group ✦ (passive) | 5.08M | — | $631.50M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | The Vanguard Group ✦ (passive) | 5.08M | — | $631.50M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | The Vanguard Group ✦ (passive) | 5.08M | — | $631.50M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Point72 Asset Management ✦ | 1.91M | +71.4% | $237.96M | 0.6% | ▲ Add | 5 | SEC ↗ |
| 28 | State Street Global Advisors ✦ (passive) | 1.62M | -3.9% | $201.82M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 29 | Fidelity (FMR) ✦ | 1.61M | — | $200.66M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Fidelity (FMR) ✦ | 1.61M | — | $200.66M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Fidelity (FMR) ✦ | 1.61M | — | $200.66M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Fidelity (FMR) ✦ | 1.61M | — | $200.66M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Fidelity (FMR) ✦ | 1.61M | — | $200.66M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Fidelity (FMR) ✦ | 1.61M | — | $200.66M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Citadel Advisors ✦ | 1.06M | -20.1% | $132.22M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 36 | Citadel Advisors ✦ | 1.06M | -20.1% | $132.22M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 37 | Geode Capital Management ✦ (passive) | 980.74K | -1.1% | $122.00M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 38 | Geode Capital Management ✦ (passive) | 980.74K | -1.1% | $122.00M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 39 | Millennium Management ✦ | 701.24K | +3424.3% | $87.22M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 40 | Two Sigma Investments ✦ | 313.14K | +39.0% | $38.95M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 41 | Norges Bank ✦ (passive) | 249.17K | +34.5% | $30.99M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 42 | Wellington Management ✦ | 143.50K | New | $17.85M | 0.0% | New | 1 | SEC ↗ |
| 43 | Wellington Management ✦ | 143.50K | New | $17.85M | 0.0% | New | 1 | SEC ↗ |
| 44 | Wellington Management ✦ | 143.50K | New | $17.85M | 0.0% | New | 1 | SEC ↗ |
| 45 | PRIMECAP Management ✦ | 138.28K | +348.1% | $17.20M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 46 | Marshall Wace ✦ | 84.19K | -0.7% | $10.47M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 47 | Marshall Wace ✦ | 84.19K | -0.7% | $10.47M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 48 | Renaissance Technologies ✦ | 66.30K | New | $8.25M | 0.0% | New | 1 | SEC ↗ |
| 49 | Gotham Asset Management ✦ | 23.57K | +2.7% | $2.93M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 50 | D. E. Shaw & Co. ✦ | 5.63K | +115.6% | $700,508 | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Wellington Management | $17.85M | 0.0% |
| Wellington Management | $17.85M | 0.0% |
| Wellington Management | $17.85M | 0.0% |
| Renaissance Technologies | $8.25M | 0.0% |
Exited
| AQR Capital Management | $262,369 | 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.
Frequently co-owned
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)
Aug 20
Loeillot Olivier
Officer, Director · 5.43K sh · $976,680
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G/A — PRICE T ROWE ASSOCIATES INC /MD/
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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