RELAY THERAPEUTICS INC RLAY
COM · Common Stock · CUSIP 75943R102
Company in Cambridge, United States
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersCambridge, MA
- Founded2016
- Websiterelaytx.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($500.3k this quarter). Holder counts are more reliable. Shares outstanding: 219.1m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $18.57. Options: 7 managers hold calls ($13.5m notional), 7 hold puts ($44.7m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 162 |
| Q4 2022 | 165 |
| Q1 2023 | 158 |
| Q2 2023 | 162 |
| Q3 2023 | 173 |
| Q4 2023 | 178 |
| Q1 2024 | 190 |
| Q2 2024 | 180 |
| Q3 2024 | 196 |
| Q4 2024 | 201 |
| Q1 2025 | 209 |
| Q2 2025 | 209 |
| Q3 2025 | 199 |
| Q4 2025 | 227 |
| Q1 2026 | 244 |
| Q2 2026 | 259 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 113 | 74 |
| Q4 2024 | 116 | 73 |
| Q1 2025 | 107 | 81 |
| Q2 2025 | 106 | 90 |
| Q3 2025 | 82 | 87 |
| Q4 2025 | 105 | 76 |
| Q1 2026 | 139 | 82 |
| Q2 2026 | 163 | 94 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $4.0m | $187.9k | 0.05 |
| Q4 2025 | $5.7m | $242.8k | 0.04 |
| Q1 2026 | $12.5m | $841.8k | 0.07 |
| Q2 2026 | $13.5m | $44.7m | 3.31 |
Biggest buyers
| FMR LLC | Added | +16.4m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +5.8m |
| PERCEPTIVE ADVISORS LLC | Added | +4.4m |
| ALLIANCEBERNSTEIN L.P. | Added | +4.0m |
| STATE STREET CORP | Added | +3.9m |
| Siren, L.L.C. | New | +3.6m |
| WESTFIELD CAPITAL MANAGEMENT CO LP | New | +3.3m |
| MORGAN STANLEY | Added | +2.4m |
| BlackRock, Inc. | Added | +2.3m |
| Pictet Asset Management Holding SA | Added | +2.1m |
Biggest sellers
| Commodore Capital LP | Reduced | -5.0m |
| Balyasny Asset Management L.P. | Reduced | -2.9m |
| Kalehua Capital Management LLC | Sold out | -1.8m |
| Bellevue Group AG | Reduced | -1.6m |
| EcoR1 Capital, LLC | Reduced | -1.2m |
| MARSHALL WACE, LLP | Reduced | -924.0k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | -850.0k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -668.2k |
| Qube Research & Technologies Ltd | Sold out | -619.7k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -481.2k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $4.7m252.0k shares |
| JANE STREET GROUP, LLC | Added | $3.7m200.2k shares |
| Caption Management, LLC | Reduced | $3.1m165.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $956.1k51.1k shares |
| GROUP ONE TRADING LLC | New | $469.6k25.1k shares |
| HRT FINANCIAL LP | New | $374.0k20.0k shares |
| SIMPLEX TRADING, LLC | Added | $140.3k7.5k shares |
Biggest puts
| Caption Management, LLC | Added | $23.3m1.2m shares |
| CITADEL ADVISORS LLC | New | $10.5m561.4k shares |
| JANE STREET GROUP, LLC | Added | $8.9m476.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $843.8k45.1k shares |
| GROUP ONE TRADING LLC | Added | $580.0k31.0k shares |
| SIMPLEX TRADING, LLC | Added | $295.6k15.8k shares |
| Walleye Capital LLC | New | $187.1k10.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| FMR LLC 13G · institution +0.6 pts · filed 2026-08-07 | 10.0% |
| Casdin Capital, LLC 13G · passive investor no change · filed 2026-02-17 | 7.5% |
| PERCEPTIVE ADVISORS LLC 13G · passive investor +1.1 pts · filed 2026-08-10 | 6.4% |
| BlackRock, Inc. 13G · institution -2.7 pts · filed 2025-04-17 | 6.1% |
| Commodore Capital LP 13G · passive investor -4.4 pts · filed 2026-08-14 | 5.5% |
Fell to 5% or below in the last year: Point72 Asset Management, L.P. (0.0%, 2026-05-15), VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 5 | $617.0k | $576.4k |
| Q1 2025 | 0 | — | 5 | $3.9m | $2.3m |
| Q2 2025 | 0 | — | 5 | $378.4k | $20.0k |
| Q3 2025 | 0 | — | 5 | $542.9k | — |
| Q4 2025 | 0 | — | 4 | $1.1m | — |
| Q1 2026 | 0 | — | 4 | $902.6k | $178.2k |
| Q2 2026 | 0 | — | 3 | $6.2m | $6.2m |
| Q3 2026 | 0 | — | 4 | $4.3m | $4.3m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-08 | Patel Sanjiv President and CEO, director | Sold plan | $912.9k48.2k shares |
| 2026-09-08 | Catinazzo Thomas Chief Financial Officer | Sold plan | $335.6k17.7k shares |
| 2026-09-08 | Bergstrom Donald A President, R&D | Sold plan | $161.8k8.5k shares |
| 2026-08-26 | Rahmer Peter Officer | Sold plan | $90.3k4.5k shares |
| 2026-08-25 | SB INVESTMENT ADVISERS (UK) LTD +2 10% owner · See footnote | Sold | $116.4m6.0m shares |
| 2026-08-17 | Patel Sanjiv President and CEO, director | Sold plan | $979.9k48.2k shares |
| 2026-08-14 | Catinazzo Thomas Chief Financial Officer | Sold plan | $349.7k17.7k shares |
| 2026-07-28 | Bergstrom Donald A President, R&D | Sold | $41.6k2.2k shares |
| 2026-07-28 | Catinazzo Thomas Chief Financial Officer | Sold | $27.2k1.5k shares |
| 2026-07-28 | Rahmer Peter Officer | Sold | $13.9k748 shares |
| 2026-07-07 | Patel Sanjiv President and CEO, director | Sold plan | $943.7k48.2k shares |
| 2026-07-06 | Catinazzo Thomas Chief Financial Officer | Sold plan | $331.1k17.7k shares |
| 2026-07-06 | Bergstrom Donald A President, R&D | Sold plan | $162.0k8.7k shares |
| 2026-06-30 | Rahmer Peter Officer | Sold plan | $954.5k50.0k shares |
| 2026-06-22 | Catinazzo Thomas Chief Financial Officer | Sold plan | $3.2m187.2k shares |
| 2026-06-22 | Bergstrom Donald A President, R&D | Sold plan | $1.6m93.5k shares |
| 2026-05-14 | Catinazzo Thomas Chief Financial Officer | Sold plan | $227.8k17.7k shares |
| 2026-04-28 | Bergstrom Donald A President, R&D | Sold | $22.0k1.5k shares |
| 2026-04-28 | Catinazzo Thomas Chief Financial Officer | Sold | $14.4k972 shares |
| 2026-04-28 | Rahmer Peter Officer | Sold | $11.1k753 shares |
| 2026-04-09 | Catinazzo Thomas Chief Financial Officer | Sold plan | $27.0k1.8k shares |
| 2026-04-07 | Catinazzo Thomas Chief Financial Officer | Sold plan | $230.5k17.7k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| SB INVESTMENT ADVISERS (UK) LTD 6.81% of their portfolio | 27.9m $522.1m | Unchanged |
| FMR LLC 0.02% of their portfolio | 20.1m $376.3m | Added +16.4m |
| Casdin Capital, LLC 15.02% of their portfolio | 16.0m $300.0m | Added +1.6m |
| BlackRock, Inc. 0.00% of their portfolio | 15.3m $286.0m | Added +2.3m |
| PERCEPTIVE ADVISORS LLC 4.10% of their portfolio | 14.1m $263.9m | Added +4.4m |
| Commodore Capital LP 13.37% of their portfolio | 12.0m $224.5m | Reduced -5.0m |
| STATE STREET CORP 0.01% of their portfolio | 10.1m $189.5m | Added +3.9m |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 9.0m $167.7m | Added +1.6m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 7.7m $144.2m | Added +5.8m |
| Nextech Invest Ltd. 6.02% of their portfolio | 6.8m $126.8m | Added +1.2m |
| Bellevue Group AG 2.44% of their portfolio | 6.2m $115.7m | Reduced -1.6m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 4.7m $88.4m | Added +1.2m |
| TCG Crossover Management, LLC 1.92% of their portfolio | 4.3m $80.0m | Unchanged |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 4.1m $40.8m | Added +4.0m |
| MORGAN STANLEY 0.00% of their portfolio | 3.9m $72.1m | Added +2.4m |
| Siren, L.L.C. 1.39% of their portfolio | 3.6m $68.3m | New |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 3.4m $63.8m | Added +866.8k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.20% of their portfolio | 3.3m $62.6m | New |
| Kynam Capital Management, LP 3.41% of their portfolio | 3.3m $61.7m | Added +1.9m |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 3.1m $58.5m | Added +187.0k |
| Spruce Street Capital LP 10.95% of their portfolio | 3.0m $55.8m | Unchanged |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 2.9m $54.1m | Added +1.0m |
| BAKER BROS. ADVISORS LP 0.27% of their portfolio | 2.8m $52.9m | Added +1.7m |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 2.7m $50.4m | Added +757.4k |
| MPM BIOIMPACT LLC 2.76% of their portfolio | 2.4m $45.2m | Added +56.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 2.2m $41.9m | Added +1.6m |
| Pictet Asset Management Holding SA 0.04% of their portfolio | 2.1m $39.2m | Added +2.1m |
| NORTHERN TRUST CORP 0.00% of their portfolio | 2.0m $36.5m | Added +278.1k |
| T. Rowe Price Investment Management, Inc. 0.02% of their portfolio | 1.9m $35.8m | New |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 1.9m $34.7m | Added +1.8m |
| Polar Capital Holdings Plc 0.09% of their portfolio | 1.8m $33.5m | New |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.05% of their portfolio | 1.7m $32.6m | Reduced -850.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 1.5m $28.1m | Added +388.9k |
| Elmind Capital, LP 6.89% of their portfolio | 1.5m $27.4m | Added +928.3k |
| Alphabet Inc. 0.03% of their portfolio | 1.4m $26.4m | Reduced -154.1k |
| PANAGORA ASSET MANAGEMENT INC 0.07% of their portfolio | 1.3m $24.2m | Added +473.1k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 1.3m $23.9m | Reduced -10.6k |
| Foresite Capital Management IV, LLC 8.06% of their portfolio | 1.2m $23.4m | Added +250.0k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 1.2m $22.9m | Added +323.5k |
| UBS Group AG 0.00% of their portfolio | 1.1m $20.5m | Added +567.4k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 1.1m $20.1m | New |
| Affinity Asset Advisors, LLC 0.96% of their portfolio | 1.1m $19.6m | Added +650.0k |
| Frazier Life Sciences Management, L.P. 0.41% of their portfolio | 1.0m $19.0m | New |
| Squadron Capital Management LLC 6.21% of their portfolio | 970.0k $18.1m | Added +297.5k |
| Connor, Clark & Lunn Investment Management Ltd. 0.03% of their portfolio | 961.7k $18.0m | Added +124.7k |
| Woodline Partners LP 0.05% of their portfolio | 929.7k $17.4m | Added +250.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 801.7k $16.0m | Added +154.1k |
| Timothy G. Youngquist 2020 Irrevocable Trust 3.01% of their portfolio | 801.5k $15.0m | Added +302.4k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 783.1k $14.7m | Added +436.7k |
| JUPITER ASSET MANAGEMENT LTD 0.07% of their portfolio | 719.6k $13.5m | New |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 700.9k $13.1m | Reduced -668.2k |
| EcoR1 Capital, LLC 0.65% of their portfolio | 697.9k $13.1m | Reduced -1.2m |
| Invesco Ltd. 0.00% of their portfolio | 692.6k $13.0m | Added +22.7k |
| CONGRESS ASSET MANAGEMENT CO 0.07% of their portfolio | 626.1k $11.7m | Added +7.2k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 591.7k $11.1m | Added +243.9k |
| Tetragon Partners GP Ltd 1.74% of their portfolio | 570.3k $10.7m | Added +388.8k |
| Rhenman & Partners Asset Management AB 1.00% of their portfolio | 566.0k $10.6m | Added +206.0k |
| ArrowMark Colorado Holdings LLC 0.42% of their portfolio | 541.1k $10.1m | Unchanged |
| HighVista Strategies LLC 2.16% of their portfolio | 506.2k $9.5m | Added +84.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 480.1k $9.0m | Added +123.2k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 473.7k $8.9m | Added +297.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 462.8k $8.7m | Added +79.8k |
| BESSEMER GROUP INC 0.01% of their portfolio | 457.9k $8.6m | Unchanged |
| Boxer Capital Management, LLC 0.63% of their portfolio | 450.0k $8.4m | New |
| Eversept Partners, LP 0.44% of their portfolio | 434.3k $8.1m | Added +163.6k |
| MOORE CAPITAL MANAGEMENT, LP 0.18% of their portfolio | 414.0k $7.7m | New |
| LORD, ABBETT & CO. LLC 0.02% of their portfolio | 410.7k $7.7m | New |
| Nuveen, LLC 0.00% of their portfolio | 392.7k $7.3m | Added +90.5k |
| Aberdeen Group plc 0.01% of their portfolio | 372.2k $7.0m | New |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 363.5k $6.8m | Added +346.7k |
| ADAR1 Capital Management, LLC 0.32% of their portfolio | 358.3k $6.7m | New |
| Logos Global Management LP 0.28% of their portfolio | 350.0k $6.5m | Reduced -400.0k |
| Duquesne Family Office LLC 0.15% of their portfolio | 349.0k $6.5m | New |
| TD Asset Management Inc 0.01% of their portfolio | 347.9k $6.5m | Added +133.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 278.3k $5.2m | Added +67.9k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 263.5k $4.9m | Added +53.8k |
| CITIGROUP INC 0.00% of their portfolio | 248.2k $4.6m | Added +218.5k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 241.1k $4.5m | Added +24.1k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 238.8k $4.5m | Added +22.8k |
| Swiss National Bank 0.00% of their portfolio | 236.6k $4.4m | Reduced -1.4k |
| SPHERA FUNDS MANAGEMENT LTD. 0.63% of their portfolio | 233.8k $4.4m | Reduced -174.6k |
| DIADEMA PARTNERS LP 1.52% of their portfolio | 230.7k $4.3m | New |
| ALPS ADVISORS INC 0.02% of their portfolio | 220.4k $4.1m | Added +74.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 203.7k $3.8m | Added +93.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 192.4k $3.6m | Reduced -481.2k |
| ExodusPoint Capital Management, LP 0.03% of their portfolio | 184.2k $3.4m | New |
| Seven Fleet Capital Management LP 0.55% of their portfolio | 178.2k $3.3m | Reduced -79.5k |
| Tidal Investments LLC 0.01% of their portfolio | 176.8k $3.3m | Added +22.7k |
| Tema ETFs LLC 0.11% of their portfolio | 176.8k $3.3m | First filing |
| Rafferty Asset Management, LLC 0.01% of their portfolio | 174.8k $3.3m | Added +24.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 169.9k $3.2m | Reduced -4.2k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 164.0k $3.1m | Added +34.4k |
| Verition Fund Management LLC 0.02% of their portfolio | 158.0k $3.0m | New |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 156.9k $2.9m | Added +97.4k |
| Trexquant Investment LP 0.02% of their portfolio | 152.0k $2.8m | Added +57.8k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 149.7k $2.8m | Reduced -36.5k |
| Legal & General Group Plc 0.00% of their portfolio | 127.7k $2.4m | Added +45.6k |
| IEQ CAPITAL, LLC 0.01% of their portfolio | 126.8k $2.4m | Reduced -78.5k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 125.9k $2.4m | Reduced -36.3k |
| Aquatic Capital Management LLC 0.08% of their portfolio | 120.2k $2.2m | Added +72.1k |