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BEAM · Beam Therapeutics Inc.

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$28.39 -0.68 (-2.34%) At close · Aug 20
Market Cap
$2.74B
Shares
103.29M

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.

Holders: 276
Total Value: $3,776,060,535
Total Shares: 110,025,179

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 276 13F filers · Δ vs Mar 31, 2026
Top Holder
11.5%
Sep 2023 → Jun 2026 · range 9.7% – 13.5%
+0.1 pts
Top 5
43.5%
Sep 2023 → Jun 2026 · range 42.4% – 49.0%
−1.3 pts
Top 10
62.6%
Sep 2023 → Jun 2026 · range 61.6% – 72.2%
−1.6 pts
HHI
520
Sep 2023 → Jun 2026 · range 488 – 651
Broadly held−27

Quarterly Activity

vs Mar 31, 2026
New
59
Increased
92
Decreased
77
Sold Out
38
Unchanged
48
Holder count: +21
Institutional value: +45.2%
Shares held: +0.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 281
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1745999 CUSIP 07373V105 13F (30d) 265 filings 255 filers Visit website Investor relations