Security record · archived quarter
RGEN
Repligen Corporation · Healthcare · Medical - Instruments & Supplies
126Tracked holders
+8Δ holders
40.16MShares held
$5.47BReported value
+16New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth +6.8% ·
share flow -3.8% ·
net new positions +7.1%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
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 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 5.38M | -10.2% | $734.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 17 | Fidelity (FMR) ✦ | 3.33M | +15.2% | $453.89M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | Fidelity (FMR) ✦ | 3.33M | +15.2% | $453.89M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 19 | Fidelity (FMR) ✦ | 3.33M | +15.2% | $453.89M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 20 | Fidelity (FMR) ✦ | 3.33M | +15.2% | $453.89M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 21 | Fidelity (FMR) ✦ | 3.33M | +15.2% | $453.89M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 22 | Fidelity (FMR) ✦ | 3.33M | +15.2% | $453.89M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 23 | Vanguard Capital Management Llc | 2.41M | +0.6% | $328.98M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | State Street Global Advisors ✦ (passive) | 1.80M | +1.3% | $245.68M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 25 | T. Rowe Price ✦ | 1.75M | -64.1% | $239.08M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 26 | T. Rowe Price ✦ | 1.75M | -64.1% | $239.08M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 27 | Massachusetts Financial Services Co… | 1.62M | +15.7% | $220.61M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 28 | Massachusetts Financial Services Co… | 1.62M | +15.7% | $220.61M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 29 | Massachusetts Financial Services Co… | 1.62M | +15.7% | $220.61M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 30 | Massachusetts Financial Services Co… | 1.62M | +15.7% | $220.61M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 31 | Massachusetts Financial Services Co… | 1.62M | +15.7% | $220.61M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 32 | Massachusetts Financial Services Co… | 1.62M | +15.7% | $220.61M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 33 | Ameriprise Financial Inc | 1.58M | +70.3% | $215.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 34 | Ameriprise Financial Inc | 1.58M | +70.3% | $215.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 35 | Ameriprise Financial Inc | 1.58M | +70.3% | $215.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 36 | Ameriprise Financial Inc | 1.58M | +70.3% | $215.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Ameriprise Financial Inc | 1.58M | +70.3% | $215.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Ameriprise Financial Inc | 1.58M | +70.3% | $215.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 39 | Ameriprise Financial Inc | 1.58M | +70.3% | $215.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 41 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 42 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 43 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 44 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 46 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 47 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 48 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 51 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 52 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 54 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 57 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 58 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 59 | Bank of New York Mellon Corp | 1.52M | -0.6% | $207.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | Invesco Ltd. | 1.39M | +8.5% | $189.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Invesco Ltd. | 1.39M | +8.5% | $189.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 62 | Invesco Ltd. | 1.39M | +8.5% | $189.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Invesco Ltd. | 1.39M | +8.5% | $189.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Invesco Ltd. | 1.39M | +8.5% | $189.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Invesco Ltd. | 1.39M | +8.5% | $189.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Invesco Ltd. | 1.39M | +8.5% | $189.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Holocene Advisors, LP | 1.29M | +82.3% | $176.31M | 0.4% | ▲ Add | 3 | SEC ↗ |
| 68 | Geode Capital Management ✦ (passive) | 1.06M | -0.2% | $145.00M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 69 | Geode Capital Management ✦ (passive) | 1.06M | -0.2% | $145.00M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 70 | Goldman Sachs Group ✦ | 965.41K | +48.2% | $131.72M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 71 | Goldman Sachs Group ✦ | 965.41K | +48.2% | $131.72M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 72 | Goldman Sachs Group ✦ | 965.41K | +48.2% | $131.72M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 73 | Goldman Sachs Group ✦ | 965.41K | +48.2% | $131.72M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 74 | Goldman Sachs Group ✦ | 965.41K | +48.2% | $131.72M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 75 | Dimensional Fund Advisors Lp | 949.86K | +11.1% | $129.60M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 76 | Dimensional Fund Advisors Lp | 949.86K | +11.1% | $129.60M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | Dimensional Fund Advisors Lp | 949.86K | +11.1% | $129.60M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Dimensional Fund Advisors Lp | 949.86K | +11.1% | $129.60M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | Dimensional Fund Advisors Lp | 949.86K | +11.1% | $129.60M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | Franklin Resources Inc | 890.22K | -25.4% | $121.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 81 | Franklin Resources Inc | 890.22K | -25.4% | $121.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 82 | Franklin Resources Inc | 890.22K | -25.4% | $121.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 83 | Franklin Resources Inc | 890.22K | -25.4% | $121.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 84 | Franklin Resources Inc | 890.22K | -25.4% | $121.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | UBS Group AG | 795.01K | +18.6% | $108.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 86 | UBS Group AG | 795.01K | +18.6% | $108.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 87 | UBS Group AG | 795.01K | +18.6% | $108.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 88 | UBS Group AG | 795.01K | +18.6% | $108.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 89 | Bamco Inc /Ny/ | 748.47K | +36.5% | $102.12M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 90 | Schroder Investment Management Group | 696.17K | +33.9% | $94.99M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 91 | Schroder Investment Management Group | 696.17K | +33.9% | $94.99M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 92 | Alliancebernstein L.P. | 795.28K | -4.4% | $93.70M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 93 | First Trust Advisors Lp | 634.22K | +0.7% | $86.53M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 94 | Norges Bank ✦ (passive) | 575.23K | New | $78.48M | 0.0% | New | 1 | SEC ↗ |
| 95 | Voya Investment Management Llc | 549.20K | -11.8% | $74.93M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 96 | Voya Investment Management Llc | 549.20K | -11.8% | $74.93M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 97 | Voya Investment Management Llc | 549.20K | -11.8% | $74.93M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 98 | Morgan Stanley ✦ | 543.24K | -20.6% | $74.12M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 99 | Morgan Stanley ✦ | 543.24K | -20.6% | $74.12M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 100 | Morgan Stanley ✦ | 543.24K | -20.6% | $74.12M | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $78.48M | 0.0% |
Exited
| Artisan Partners Limited… | $22.40M | was 0.0% |
| Millennium Management | $2.65M | was 0.0% |
| Mirae Asset Global… | $1.72M | was 0.0% |
| IMC-Chicago, LLC | $1.06M | was 0.0% |
| Capstone Investment Advisors… | $354,049 | was 0.0% |
| HighTower Advisors, LLC | $207,279 | was 0.0% |
| Nomura Asset Management Co Ltd | $15,317 | 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 2026 ·
Methodology ·
Get this via the API