BCYC · Bicycle Therapeutics PLC · Holdings
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Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 103 13F filersWho Holds BCYC
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 103 filers, like-for-like change -0.5%; actively managed books -0.7%; index-like books +5.1%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 68.2% | 44 | +6.0% |
| Exempt adviser | 4.5% | 3 | +109.7% |
| Adviser | 0.1% | 1 | +64.6% |
| Bank | 0.2% | 7 | -27.0% |
| Broker-dealer | 0.0% | 1 | new |
| Non-US | 0.4% | 5 | 0.0% |
| Holding company | 7.1% | 6 | +2.4% |
| Insurer | 0.0% | 0 | -100.0% |
| Unknown | 19.5% | 36 | -16.2% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 3.1% | 8 | +5.1% |
| Systematic-like | 12.5% | 18 | +61.5% |
| Concentrated | 45.7% | 14 | -0.4% |
| Diversified active | 38.7% | 63 | -11.9% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 46.0% | 39 | -9.2% |
| Medium turnover | 30.0% | 25 | -10.2% |
| High turnover | 19.1% | 34 | +59.9% |
| Unknown | 4.9% | 5 | +7.9% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 8.2% | 17 | +7.9% |
| Medium horizon | 21.5% | 15 | -12.1% |
| Long horizon | 52.4% | 57 | -2.9% |
| Unknown | 17.9% | 14 | +23.0% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 20.4% | 26 | +4.6% |
| $1B to $10B | 21.3% | 25 | -14.6% |
| $10B to $100B | 42.7% | 24 | +4.9% |
| $100B or more | 15.6% | 28 | +1.2% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 2.3% | 10 | -34.1% |
| Pooled investment vehicles | 61.0% | 24 | +7.1% |
| Registered funds and BDCs | 2.8% | 4 | -6.9% |
| Governments and sovereign funds | 1.6% | 3 | +337.6% |
| Other investment advisers | 0.0% | 1 | +512.9% |
| Diversified | 0.5% | 2 | +2.0% |
| Insurance companies | 0.0% | 0 | — |
| Unknown | 31.8% | 59 | -12.2% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 65.5% | 27 | +8.9% |
| Private equity funds | 0.0% | 0 | — |
| Real estate funds | 0.0% | 2 | new |
| Other private funds | 3.1% | 5 | -8.0% |
| Private funds, type not stated | 0.1% | 1 | -56.7% |
| No private funds | 4.1% | 12 | +42.6% |
| Mixed private funds | 0.0% | 0 | — |
| Securitized asset funds | 0.0% | 0 | — |
| Unknown | 27.2% | 56 | -20.0% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 78.9% | 78 | -2.6% |
| Outside the US | 21.1% | 25 | +7.9% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Conviction and Crowding
103 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net sellers of $62,807 (0 buying, 1 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 93.2% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies BCYC's active holders also own, quarter ended Jun 30, 2026Shareholder Targets
13F filers that own its peers but not BCYC, quarter ended Jun 30, 2026Found through its holder-overlap peers: INGN, NKTX, SEER, PLRX, LAKE, ARQ, DCGO, FULC, ENGN, LMNR, STHO, PRTA, VYGR, IDYA, SEG, FHTX, FDMT, ARVN, STOK, ANNX. 606 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | FMR LLC Holding company, Diversified active | $915,925,063 19 held | IDYA, STOK, ANNX |
| 2 | Jupiter Topco LLC Unknown, Diversified active | $456,096,860 5 held | IDYA, FDMT, STOK |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like | $410,556,286 19 held | IDYA, STOK, ANNX |
| 4 | Redmile Group, LLC Registered adviser, Concentrated | $221,628,050 4 held | STOK, ANNX, IDYA |
| 5 | RTW INVESTMENTS, LP Registered adviser, Diversified active | $204,132,729 3 held | STOK, IDYA, FDMT |
| 6 | BVF INC/IL Unknown, Concentrated | $200,100,207 5 held | STOK, ANNX, FDMT |
| 7 | Capital Research Global Investors Adviser, Diversified active | $199,197,006 1 held | IDYA |
| 8 | DEERFIELD MANAGEMENT COMPANY, L.P. Registered adviser, Concentrated | $185,613,099 4 held | IDYA, STOK, FHTX |
| 9 | DIMENSIONAL FUND ADVISORS LP Registered adviser, Diversified active | $159,990,959 19 held | IDYA, STOK, SEG |
| 10 | ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active | $158,422,021 4 held | IDYA, FDMT, ANNX |
Fund Ownership of BCYC by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 0.58% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.04% | 25,129 |
| Index ETFs | 0.54% | 379,463 |
| Active ETFs | 0.02% | 12,584 |
| Active funds | 2.23% | 1,560,371 |
| Unclassified | 0.00% | 0 |
| All registered funds | 2.82% | 1,977,547 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Large BAKER BROS. ADVISORS LP Registered adviser | $46,153,913 | 29.06% | 10,885,357 | Shares | 2026-08-14 | |
| Small FCPM III SERVICES B.V. | $14,706,143 | 9.26% | 3,468,430 | Shares | 2026-08-14 | |
| Mid ARMISTICE CAPITAL, LLC Registered adviser | $14,407,520 | 9.07% | 3,398,000 | Shares | 2026-08-14 | |
| Mid Long Focus Capital Management, LLC Registered adviser | $14,037,312 | 8.84% | 3,310,687 | Shares | 2026-08-14 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $8,344,426 | 5.25% | 1,968,025 | Shares | 2026-08-13 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $6,501,616 | 4.09% | 1,533,400 | Shares | 2026-08-13 | |
| Small GSK plc Holding company | $6,485,338 | 4.08% | 1,529,561 | Shares | 2026-08-13 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $3,825,116 | 2.41% | 902,150 | Shares | 2026-08-14 | |
| Mega MARSHALL WACE, LLP Exempt adviser | $3,383,265 | 2.13% | 797,940 | Shares | 2026-08-13 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $3,288,404 | 2.07% | 775,567 | Shares | 2026-08-14 | |
| Mega MORGAN STANLEY Holding company | $2,829,219 | 1.78% | 667,269 | Shares | 2026-08-13 | |
| Mega SCHRODER INVESTMENT MANAGEMENT GROUP Registered adviser | $2,611,131 | 1.64% | 615,833 | Shares | 2026-08-13 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $2,349,913 | 1.48% | 554,225 | Shares | 2026-09-02 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $2,348,820 | 1.48% | 553,967 | Shares | 2026-08-14 | |
| Small DIADEMA PARTNERS LP Registered adviser | $1,961,949 | 1.24% | 462,724 | Shares | 2026-08-14 | |
| Small Peapod Lane Capital LLC Registered adviser | $1,846,285 | 1.16% | 501,708 | Shares | 2026-10-22 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $1,842,606 | 1.16% | 434,577 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $1,662,770 | 1.05% | 392,163 | Shares | 2026-08-14 | |
| Small Birchview Capital, LP | $1,329,731 | 0.84% | 313,616 | Shares | 2026-08-14 | |
| Mega BlackRock, Inc. Holding company | $1,188,836 | 0.75% | 280,386 | Shares | 2026-08-07 | |
| Mid MOORE CAPITAL MANAGEMENT, LP Registered adviser | $1,166,000 | 0.73% | 275,000 | Shares | 2026-08-14 | |
| Small Rangeley Capital, LLC Registered adviser | $1,074,840 | 0.68% | 253,500 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,042,616 | 0.66% | 245,900 | Put | 2026-08-14 | |
| Small Palo Alto Investors LP Registered adviser | $856,013 | 0.54% | 201,890 | Shares | 2026-08-19 | |
| Mid Sculptor Capital LP Registered adviser | $839,112 | 0.53% | 197,904 | Shares | 2026-08-14 | |
| Mid Eversept Partners, LP Registered adviser | $808,631 | 0.51% | 190,715 | Shares | 2026-08-14 | |
| Small FLAX POND CAPITAL, LLC Registered adviser | $763,564 | 0.48% | 180,086 | Shares | 2026-08-14 | |
| Large Jump Financial, LLC | $708,504 | 0.45% | 167,100 | Shares | 2026-08-13 | |
| Large Point72 Asset Management, L.P. Registered adviser | $635,728 | 0.40% | 149,936 | Shares | 2026-08-14 | |
| Mid PINNACLE ASSOCIATES LTD Registered adviser | $590,827 | 0.37% | 160,551 | Shares | 2026-10-20 | |
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Non-US | $542,139 | 0.34% | 127,863 | Shares | 2026-09-09 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $514,231 | 0.32% | 121,281 | Shares | 2026-08-14 | |
| Small Persistent Asset Partners Ltd Exempt adviser | $497,156 | 0.31% | 117,254 | Shares | 2026-08-07 | |
| Mid XTX Topco Ltd | $465,556 | 0.29% | 109,801 | Shares | 2026-08-14 | |
| Large Quadrature Capital Ltd | $441,350 | 0.28% | 104,092 | Shares | 2026-08-07 | |
| Mega TD Asset Management Inc | $390,046 | 0.25% | 91,992 | Shares | 2026-08-04 | |
| Small Virtus Investment Advisers, LLC Registered adviser | $342,545 | 0.22% | 80,789 | Shares | 2026-08-11 | |
| Small NANO CAP NEW MILLENNIUM GROWTH FUND L P | $339,200 | 0.21% | 80,000 | Shares | 2026-08-14 | |
| Small EntryPoint Capital, LLC Registered adviser | $329,630 | 0.21% | 77,743 | Shares | 2026-08-13 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $315,880 | 0.20% | 74,500 | Call | 2026-08-14 | |
| Large HRT FINANCIAL LP | $280,844 | 0.18% | 66,237 | Shares | 2026-08-14 | |
| Small DAFNA Capital Management LLC Registered adviser | $273,446 | 0.17% | 64,492 | Shares | 2026-08-14 | |
| Large State of Tennessee, Department of Treasury | $259,288 | 0.16% | 61,153 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $238,288 | 0.15% | 56,200 | Put | 2026-09-02 | |
| Mega SEI INVESTMENTS CO Holding company | $223,804 | 0.14% | 52,784 | Shares | 2026-08-14 | |
| Large ALPS ADVISORS INC Registered adviser | $216,757 | 0.14% | 51,122 | Shares | 2026-07-29 | |
| Small Verdad Advisers, LP | $216,664 | 0.14% | 51,100 | Shares | 2026-08-14 | |
| Mid ADAR1 Capital Management, LLC Registered adviser | $214,705 | 0.14% | 50,638 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $151,792 | 0.10% | 35,800 | Call | 2026-08-14 | |
| Mid SIMPLEX TRADING, LLC | $149,383 | 0.09% | 35,232 | Shares | 2026-08-12 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $135,497 | 0.09% | 31,957 | Shares | 2026-08-14 | |
| Large Trexquant Investment LP Registered adviser | $131,626 | 0.08% | 31,044 | Shares | 2026-08-14 | |
| Mega STATE STREET CORP Bank | $130,714 | 0.08% | 30,829 | Shares | 2026-09-22 | |
| Mid GSA CAPITAL PARTNERS LLP Registered adviser | $130,528 | 0.08% | 30,785 | Shares | 2026-08-06 | |
| Small AXQ CAPITAL, LP Registered adviser | $116,040 | 0.07% | 27,368 | Shares | 2026-08-06 | |
| Mega JANE STREET GROUP, LLC | $113,632 | 0.07% | 26,800 | Put | 2026-08-14 | |
| Mega D. E. Shaw & Co., Inc. | $107,937 | 0.07% | 25,457 | Shares | 2026-08-14 | |
| Mid WOODSTOCK CORP Registered adviser | $107,257 | 0.07% | 29,146 | Shares | 2026-10-13 | |
| Mega Invesco Ltd. Adviser | $105,160 | 0.07% | 24,802 | Shares | 2026-08-14 | |
| Mid National Philanthropic Trust | $104,825 | 0.07% | 24,723 | Shares | 2026-08-14 | |
| Micro Forefront Analytics, LLC | $92,525 | 0.06% | 21,822 | Shares | 2026-08-13 | |
| Mega STIFEL FINANCIAL CORP | $86,830 | 0.05% | 20,479 | Shares | 2026-08-12 | |
| Large State of New Jersey Common Pension Fund D | $85,245 | 0.05% | 20,105 | Shares | 2026-08-04 | |
| Large Vontobel Holding Ltd. | $84,640 | 0.05% | 23,000 | Shares | 2026-10-16 | |
| Small Aigen Investment Management, LP Registered adviser | $81,912 | 0.05% | 19,319 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $80,708 | 0.05% | 19,035 | Shares | 2026-08-12 | |
| Mid Pinnacle Wealth Management Advisory Group, LLC Registered adviser | $77,224 | 0.05% | 20,985 | Shares | 2026-10-23 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $73,352 | 0.05% | 17,300 | Call | 2026-09-02 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $67,700 | 0.04% | 15,967 | Shares | 2026-08-12 | |
| Mega UBS Group AG Bank | $65,546 | 0.04% | 15,459 | Shares | 2026-08-13 | |
| Small PORTLAND INVESTMENT COUNSEL INC. | $63,600 | 0.04% | 15,000 | Shares | 2026-08-13 | |
| Large Federation des caisses Desjardins du Quebec | $60,639 | 0.04% | 14,302 | Shares | 2026-08-14 | |
| Large Erste Asset Management GmbH Non-US | $59,360 | 0.04% | 14,000 | Shares | 2026-07-28 | |
| Large Cerity Partners LLC Registered adviser | $57,536 | 0.04% | 13,570 | Shares | 2026-08-14 | |
| Large Schonfeld Strategic Advisors LLC Registered adviser | $56,811 | 0.04% | 13,399 | Shares | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO Bank | $55,356 | 0.03% | 13,056 | Shares | 2026-08-12 | |
| Large Walleye Capital LLC Registered adviser | $55,120 | 0.03% | 13,000 | Shares | 2026-08-03 | |
| Mid HORIZON KINETICS ASSET MANAGEMENT LLC Registered adviser | $53,356 | 0.03% | 12,584 | Shares | 2026-08-11 | |
| Mid Aquatic Capital Management LLC Registered adviser | $52,334 | 0.03% | 12,343 | Shares | 2026-08-14 | |
| Large Jain Global LLC Registered adviser | $50,880 | 0.03% | 12,000 | Shares | 2026-08-14 | |
| Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $42,891 | 0.03% | 10,116 | Shares | 2026-07-17 | |
| Mid Crossmark Global Holdings, Inc. | $41,267 | 0.03% | 11,214 | Shares | 2026-10-21 | |
| Large Walleye Capital LLC Registered adviser | $32,648 | 0.02% | 7,700 | Call | 2026-08-03 | |
| Mid China Universal Asset Management Co., Ltd. | $31,364 | 0.02% | 8,523 | Shares | 2026-10-28 | |
| Mid GAMMA Investing LLC Registered adviser | $27,824 | 0.02% | 7,561 | Shares | 2026-10-08 | |
| Mid State of Wyoming | $26,234 | 0.02% | 7,129 | Shares | 2026-10-28 | |
| Large NATIXIS Non-US | $19,694 | 0.01% | 4,645 | Shares | 2026-08-13 | |
| Mid Tower Research Capital LLC (TRC) | $15,556 | 0.01% | 3,669 | Shares | 2026-08-11 | |
| Mega BARCLAYS PLC Bank | $13,351 | 0.01% | 3,149 | Shares | 2026-08-14 | |
| Mega ROYAL BANK OF CANADA Bank | $10,600 | 0.01% | 2,500 | Shares | 2026-08-14 | |
| Large Mirae Asset Global Investments Co., Ltd. | $8,784 | 0.01% | 2,387 | Shares | 2026-10-29 | |
| Mid GROUP ONE TRADING LLC Broker-dealer | $8,217 | 0.01% | 1,938 | Shares | 2026-08-14 | |
| Mega CITIGROUP INC Bank | $4,982 | 0.00% | 1,175 | Shares | 2026-08-03 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $4,307 | 0.00% | 1,016 | Shares | 2026-08-13 | |
| Mid GF FUND MANAGEMENT CO. LTD. | $3,849 | 0.00% | 1,046 | Shares | 2026-10-26 | |
| Mega JONES FINANCIAL COMPANIES LLLP | $2,968 | 0.00% | 700 | Shares | 2026-08-14 | |
| Mid Quarry LP | $2,276 | 0.00% | 537 | Shares | 2026-08-14 | |
| Small HighMark Wealth Management LLC Registered adviser | $1,844 | 0.00% | 435 | Shares | 2026-08-12 | |
| Large Arax Advisory Partners Registered adviser | $1,288 | 0.00% | 304 | Shares | 2026-08-10 | |
| Large Walleye Capital LLC Registered adviser | $848 | 0.00% | 200 | Put | 2026-08-03 |
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