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AXSM · Axsome Therapeutics, Inc.

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$206.27 -0.88 (-0.42%) At close · Aug 27
Market Cap
$10.85B
Shares
52.38M

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: 506
Total Value: $9,786,877,178
Total Shares: 39,984,772
Showing 1–100 of 532 holdings by value · page 1 of 6

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 506 13F filers · Δ vs Mar 31, 2026
Top Holder
7.8%
Sep 2023 → Jun 2026 · range 7.8% – 11.6%
−2.2 pts
Top 5
25.7%
Sep 2023 → Jun 2026 · range 25.7% – 40.3%
−1.9 pts
Top 10
36.2%
Sep 2023 → Jun 2026 · range 36.2% – 56.6%
−5.8 pts
HHI
215
Sep 2023 → Jun 2026 · range 215 – 446
Broadly held−57

Quarterly Activity

vs Mar 31, 2026
New
138
Increased
159
Decreased
159
Sold Out
47
Unchanged
50
Holder count: +91
Institutional value: +47.7%
Shares held: +1.8%

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 532
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1579428 CUSIP 05464T104 13F (30d) 426 filings 424 filers Visit website Investor relations