Skip to main content
CGEM logo

CGEM · Cullinan Therapeutics, Inc. · Holdings

Track CGEM — free
$20.59 -0.41 (-1.95%) At close · Sep 11
Market Cap
$1.33B
Shares
64.35M

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: 184
Total Value: $1,310,508,790
Total Shares: 71,966,475
Showing 1–100 of 190 holdings by value · page 1 of 2

Institutional Ownership Trend

22 quarters

Holder Concentration

Across 184 13F filers · Δ vs Mar 31, 2026
Top Holder
13.5%
Sep 2023 → Jun 2026 · range 11.6% – 20.7%
−0.1 pts
Top 5
46.6%
Sep 2023 → Jun 2026 · range 36.5% – 54.3%
+1.1 pts
Top 10
65.5%
Sep 2023 → Jun 2026 · range 53.1% – 72.2%
+3.8 pts
HHI
591
Sep 2023 → Jun 2026 · range 424 – 817
Broadly held+34

Quarterly Activity

vs Mar 31, 2026
New
31
Increased
85
Decreased
47
Sold Out
21
Unchanged
21
Holder count: +10
Institutional value: +40.1%
Shares held: +9.3%

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 190
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1789972 CUSIP 230031106 13F (30d) 65 filings 65 filers Visit website Investor relations