Security record · archived quarter
RGEN
Repligen Corporation · Healthcare · Medical - Instruments & Supplies
122Tracked holders
-3Δ holders
43.70MShares held
$7.16BReported value
+1New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth -2.4% ·
share flow +1.3% ·
net new positions -1.6%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 11.91K | $1.59M | n/a | n/a |
| Q2 2026 | 125 | +9 | 40.15M | $5.47B | +16 | −8 |
| 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 | n/a |
| Q4 2024 | 12 | 0 | 12.86M | $1.85B | +1 | −1 |
| Q3 2024 | 11 | -3 | 9.29M | $1.38B | n/a | −3 |
| Q2 2024 | 14 | n/a | 8.37M | $1.05B | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 6.62M | +7.8% | $1.08B | 0.0% | ▲ Add | 3 | SEC ↗ ×17 |
| 2 | The Vanguard Group ✦ (passive) | 4.99M | -1.0% | $818.31M | 0.0% | ▼ Trim | 3 | SEC ↗ ×6 |
| 3 | T. Rowe Price ✦ | 4.60M | +31.1% | $753.60M | 0.1% | ▲ Add | 7 | SEC ↗ ×2 |
| 4 | Fidelity (FMR) ✦ | 2.87M | +6.6% | $469.93M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 5 | State Street Global Advisors ✦ (passive) | 1.72M | -4.6% | $281.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 6 | Citadel Advisors ✦ | 1.39M | -17.2% | $228.46M | 0.2% | ▼ Trim | 7 | SEC ↗ ×2 |
| 7 | Bank of New York Mellon Corp | 1.34M | n/a | $220.34M | 0.0% | n/c | 1 | SEC ↗ ×22 |
| 8 | Invesco Ltd. | 1.26M | n/a | $205.88M | 0.0% | n/c | 1 | SEC ↗ ×13 |
| 9 | Massachusetts Financial Services Co… | 1.22M | n/a | $199.18M | 0.1% | n/c | 1 | SEC ↗ ×6 |
| 10 | Franklin Resources Inc | 1.10M | n/a | $180.48M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 11 | Geode Capital Management ✦ (passive) | 1.03M | -0.2% | $168.78M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 12 | Point72 Asset Management ✦ | 1.01M | -30.1% | $164.89M | 0.3% | ▼ Trim | 7 | SEC ↗ |
| 13 | Alliancebernstein L.P. | 994.87K | n/a | $163.02M | 0.1% | n/c | 1 | SEC ↗ |
| 14 | Holocene Advisors, LP | 961.04K | n/a | $157.48M | 0.3% | n/c | 1 | SEC ↗ |
| 15 | Dimensional Fund Advisors Lp | 804.41K | n/a | $131.82M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 16 | Millennium Management ✦ | 650.55K | -20.4% | $106.60M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 17 | Morgan Stanley ✦ | 570.98K | +17.7% | $93.56M | 0.0% | ▲ Add | 2 | SEC ↗ ×14 |
| 18 | Bamco Inc /Ny/ | 544.78K | n/a | $89.27M | 0.2% | n/c | 1 | SEC ↗ |
| 19 | Voya Investment Management Llc | 521.16K | n/a | $85.40M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 20 | Marshall Wace ✦ | 516.34K | +185.2% | $84.61M | 0.1% | ▲ Add | 7 | SEC ↗ ×2 |
| 21 | Ameriprise Financial Inc | 494.23K | n/a | $80.98M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 22 | Norges Bank ✦ (passive) | 462.09K | New | $75.72M | 0.0% | New | 1 | SEC ↗ |
| 23 | Northern Trust Corp | 446.15K | n/a | $73.11M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 24 | Charles Schwab Investment… | 430.70K | n/a | $70.58M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Bank Of America Corp /De/ | 397.23K | n/a | $65.09M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 26 | UBS Group AG | 348.39K | n/a | $57.09M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 27 | BNP Paribas Asset Management… | 323.82K | n/a | $53.06M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 28 | Allspring Global Investments… | 311.18K | n/a | $51.14M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 29 | Goldman Sachs Group ✦ | 295.27K | +145.0% | $48.38M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 30 | First Trust Advisors Lp | 282.78K | n/a | $46.34M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | American Century Companies Inc | 250.27K | n/a | $41.01M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | JPMorgan Chase ✦ | 248.94K | -54.5% | $40.79M | 0.0% | ▼ Trim | 2 | SEC ↗ ×9 |
| 33 | Baird Financial Group, Inc. | 205.60K | n/a | $33.69M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 34 | Nomura Asset Management… | 204.86K | n/a | $33.57M | 0.1% | n/c | 1 | SEC ↗ |
| 35 | Principal Financial Group Inc | 198.20K | n/a | $32.48M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 36 | Artisan Partners Limited Partnership | 193.70K | n/a | $31.74M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Nuveen, LLC | 192.69K | n/a | $31.57M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 38 | PRIMECAP Management ✦ | 186.67K | -0.1% | $30.59M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 39 | Sei Investments Co | 181.99K | n/a | $29.82M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 40 | New York State Common Retirement… | 171.01K | n/a | $28.02M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Raymond James Financial Inc | 168.87K | n/a | $27.88M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 42 | UBS AM, a distinct business unit of… | 164.35K | n/a | $26.93M | 0.0% | n/c | 1 | SEC ↗ ×9 |
| 43 | Barclays Plc | 159.15K | n/a | $26.08M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 44 | Loomis Sayles & Co L P | 149.78K | n/a | $24.54M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 45 | Royal Bank Of Canada | 143.33K | n/a | $23.48M | 0.0% | n/c | 1 | SEC ↗ ×10 |
| 46 | Rhumbline Advisers | 134.11K | n/a | $21.98M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Daiwa Securities Group Inc. | 130.28K | n/a | $21.35M | 0.1% | n/c | 1 | SEC ↗ |
| 48 | Jennison Associates Llc | 123.60K | n/a | $20.25M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Balyasny Asset Management L.P. | 115.05K | n/a | $18.85M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Victory Capital Management Inc | 109.08K | n/a | $17.87M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Swiss National Bank | 105.40K | n/a | $17.27M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Ensign Peak Advisors, Inc | 101.21K | n/a | $16.58M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Envestnet Asset Management Inc | 101.11K | n/a | $16.57M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Osaic Holdings, Inc. | 89.98K | n/a | $14.74M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 55 | Citigroup Inc | 83.75K | n/a | $13.72M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 56 | Legal & General Group Plc | 78.80K | n/a | $12.91M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 57 | Bnp Paribas Financial Markets | 74.04K | n/a | $12.13M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | California Public Employees… | 70.11K | n/a | $11.49M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Wcm Investment Management, Llc | 63.60K | n/a | $10.60M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Russell Investments Group, Ltd. | 58.88K | n/a | $9.65M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 61 | Manufacturers Life Insurance… | 57.10K | n/a | $9.41M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Td Asset Management Inc | 55.76K | n/a | $9.14M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Aberdeen Group plc | 54.33K | n/a | $8.90M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | California State Teachers… | 50.65K | n/a | $8.30M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Gotham Asset Management ✦ | 50.53K | +16.9% | $8.28M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 66 | State Board Of Administration Of… | 49.24K | n/a | $8.07M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Bank Of Nova Scotia | 44.48K | n/a | $7.29M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Neuberger Berman Group LLC | 42.39K | n/a | $6.95M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 69 | Amundi | 42.03K | n/a | $6.89M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 70 | Jane Street Group, Llc | 36.82K | n/a | $6.03M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 71 | LPL Financial LLC | 36.71K | n/a | $6.02M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Wells Fargo & Company/Mn | 36.47K | n/a | $5.98M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 73 | State Of Wisconsin Investment Board | 34.19K | n/a | $5.60M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Swedbank AB | 25.30K | n/a | $4.15M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Janus Henderson Group Plc | 24.32K | n/a | $3.99M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Zurcher Kantonalbank (Zurich… | 22.09K | n/a | $3.62M | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Universal- Beteiligungs- und… | 21.83K | n/a | $3.62M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Stifel Financial Corp | 20.99K | n/a | $3.44M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 79 | Bank Of Montreal /Can/ | 18.46K | n/a | $3.02M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 80 | Mirae Asset Global Investments Co.… | 15.05K | n/a | $2.47M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Prudential Financial Inc | 14.43K | n/a | $2.36M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 82 | Us Bancorp \De\ | 14.20K | n/a | $2.33M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 83 | Quantinno Capital Management LP | 11.28K | n/a | $1.85M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Pacer Advisors, Inc. | 10.47K | n/a | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Deutsche Bank Ag\ | 10.16K | n/a | $1.67M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 86 | Captrust Financial Advisors | 9.37K | n/a | $1.53M | 0.0% | n/c | 1 | SEC ↗ |
| 87 | AQR Capital Management ✦ | 8.65K | -6.2% | $1.42M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 88 | Cetera Investment Advisers | 8.50K | n/a | $1.39M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Two Sigma Investments ✦ | 8.40K | -91.1% | $1.38M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 90 | Bridgewater Associates ✦ | 7.87K | -76.6% | $1.29M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 91 | Pictet Asset Management Holding SA | 7.54K | n/a | $1.24M | 0.0% | n/c | 1 | SEC ↗ |
| 92 | First Manhattan Co. Llc. | 6.55K | n/a | $1.07M | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Mml Investors Services, Llc | 6.17K | n/a | $1.01M | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Commonwealth Equity Services, Llc | 6.14K | n/a | $1.01M | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Creative Planning | 5.68K | n/a | $931,404 | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Corient Private Wealth LP | 4.95K | n/a | $814,203 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 97 | Tidal Investments LLC | 4.72K | n/a | $772,928 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 98 | Wealth Enhancement Advisory… | 4.35K | n/a | $750,020 | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Pnc Financial Services Group, Inc. | 4.46K | n/a | $731,472 | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 100 | Federated Hermes, Inc. | 4.25K | n/a | $697,224 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $75.72M | 0.0% |
Exited
| D. E. Shaw & Co. | $33.41M | was 0.0% |
| Renaissance Technologies | $14.62M | was 0.0% |
| Adage Capital Partners | $668,350 | 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)
Oct 05
Loeillot Olivier
Officer, Director · 4.20K sh · $798,380
Oct 05
Loeillot Olivier
Officer, Director · 1.33K sh · $238,274
Sep 24
Loeillot Olivier
Officer, Director · 8.40K sh · $1.60M
Sep 24
Loeillot Olivier
Officer, Director · 4.54K sh · $862,980
Sep 21
Loeillot Olivier
Officer, Director · 5.43K sh · $976,680
Sep 04
Loeillot Olivier
Officer, Director · 3.04K sh · $503,506
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
Oct 07
SC 13G/A: FMR LLC
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: Q4 2025 ·
Methodology ·
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