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Relay Therapeutics RLAY

US equityMarket cap rank #2236
$19.39 +$0.43 (+2.27%)
Market closed · Oct 5, 10:20 pm ET · Last extended-hours $19.38 -0.03%
Open$19.00
Prev close$18.96
Day range$18.29 – $19.40
Volume2.94M
Market cap$4.25B
P/E (TTM)–
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership123.8%-4.86 pts vs. prior quarter
Institutions holding308-1 vs. prior quarter
Insider trades (recent)17 buys / 33 sellsNet selling
Short interest20.30% of floatDays to cover 14.2 · as of 15 Sep 2026
Short-sale volume share30.3%5-day average of daily volume

Short-sale volume as % of daily volume

16%22%28%34%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$18.85M (8 inflow days, 12 outflow days).

The five largest holders on file together own 46.7% of shares outstanding.

Largest holders

  • SB Investment Advisers (UK) Limited12.73%
  • SoftBank Group Corp.10.00%
  • FMR9.70%
  • Casdin Capital, LLC7.32%
  • BlackRock6.98%
  • Perceptive Advisors LLC6.44%
  • Commodore Capital LP5.48%
  • Vanguard Capital Management, LLC4.65%

By investor type

  • Mutual Fund56.07%
  • VC/PE Fund35.99%
  • Hedge Fund16.09%
  • Public Company14.60%
  • Individual/Insider1.65%
  • Government Pension Fund0.26%
  • Sovereign Wealth Fund0.25%
  • Private Company0.24%

Reported short interest has risen from 20.07% to 20.30% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 44,487,428 20.3% 14.2
31 Aug 2026 43,550,416 19.9% 16.7
14 Aug 2026 41,359,202 18.9% 21.6
31 Jul 2026 40,250,044 18.8% 17.4
15 Jul 2026 42,557,689 19.8% 13.4
30 Jun 2026 43,041,464 20.1% 7.2

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