Axsome Therapeutics, Inc.
US ˙ NasdaqGM ˙ US05464T1043

SecurityAXSM / Axsome Therapeutics, Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership62,822 shares
Latest Disclosed Value $ 11,473,810
Alliancebernstein L.p. reports 18.22% increase in ownership of AXSM / Axsome Therapeutics, Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 62,822 shares of Axsome Therapeutics, Inc. (US:AXSM) valued at $10,618,174 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 53,140 shares of Axsome Therapeutics, Inc.. This represents a change in shares of 18.22% during the quarter. The current value of the position is $14,542,037 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AXSOME THERAPEUTICS COM 05464T104 62,822 9,682 18.22 11,474 18.22 0.0037
2026-02-17 2025-12-31 13F AXSOME THERAPEUTICS COM 05464T104 53,140 -9,925 -15.74 9,705 26.71 0.0031
2025-11-14 2025-09-30 13F AXSOME THERAPEUTICS COM 05464T104 63,065 17,083 37.15 7,659 59.56 0.0024
2025-08-14 2025-06-30 13F AXSOME THERAPEUTICS COM 05464T104 45,982 -15,489 -25.20 4,800 -33.05 0.0016
2025-05-15 2025-03-31 13F AXSOME THERAPEUTICS COM 05464T104 61,471 14,881 31.94 7,169 81.91 0.0026
2025-02-12 2024-12-31 13F AXSOME THERAPEUTICS COM 05464T104 46,590 -78,388 -62.72 3,942 -64.91 0.0013
2024-11-14 2024-09-30 13F AXSOME THERAPEUTICS COM 05464T104 124,978 -43,784 -25.94 11,232 -17.33 0.0038
2024-08-14 2024-06-30 13F AXSOME THERAPEUTICS COM 05464T104 168,762 88,608 110.55 13,585 112.40 0.0047
2024-05-14 2024-03-31 13F AXSOME THERAPEUTICS COM 05464T104 80,154 38,864 94.12 6,396 94.64 0.0023
2024-02-14 2023-12-31 13F AXSOME THERAPEUTICS COM 05464T104 41,290 0 0.00 3,286 13.90 0.0013
2023-11-14 2023-09-30 13F AXSOME THERAPEUTICS COM 05464T104 41,290 590 1.45 2,886 -1.33 0.0012
2023-08-15 2023-06-30 13F AXSOME THERAPEUTICS COM 05464T104 40,700 0 0.00 2,925 16.49 0.0012
2023-05-15 2023-03-31 13F AXSOME THERAPEUTICS COM 05464T104 40,700 0 0.00 2,510 -20.04 0.0011
2023-02-15 2022-12-31 13F AXSOME THERAPEUTICS COM 05464T104 40,700 0 0.00 3,139 72.85 0.0014
2022-11-15 2022-09-30 13F AXSOME THERAPEUTICS COM 05464T104 40,700 0 0.00 1,816 16.48 0.0009
2022-08-15 2022-06-30 13F AXSOME THERAPEUTICS COM 05464T104 40,700 700 1.75 1,559 -5.86 0.0007
2022-05-13 2022-03-31 13F AXSOME THERAPEUTICS COM 05464T104 40,000 3,400 9.29 1,656 19.74 0.0006
2022-02-14 2021-12-31 13F AXSOME THERAPEUTICS COM 05464T104 36,600 -4,200 -10.29 1,383 2.83 0.0005
2021-11-10 2021-09-30 13F AXSOME THERAPEUTICS COM 05464T104 40,800 0 0.00 1,345 -51.13 0.0005
2021-07-30 2021-06-30 13F AXSOME THERAPEUTICS COM 05464T104 40,800 -599,585 -93.63 2,752 -92.41 0.0011
2021-05-06 2021-03-31 13F AXSOME THERAPEUTICS COM 05464T104 640,385 42,587 7.12 36,259 -25.55 0.0159
2021-02-08 2020-12-31 13F AXSOME THERAPEUTICS COM 05464T104 597,798 55,525 10.24 48,703 26.05 0.0230
2020-11-12 2020-09-30 13F AXSOME THERAPEUTICS COM 05464T104 542,273 86,071 18.87 38,637 2.93 0.0208
2020-08-13 2020-06-30 13F AXSOME THERAPEUTICS COM 05464T104 456,202 156,411 52.17 37,536 112.83 0.0221
2020-05-14 2020-03-31 13F AXSOME THERAPEUTICS COM 05464T104 299,791 31,966 11.94 17,637 -36.29 0.0126
2020-02-18 2019-12-31 13F AXSOME THERAPEUTICS COM 05464T104 267,825 -498,354 -65.04 27,682 78.51 0.0157
2019-11-14 2019-09-30 13F AXSOME THERAPEUTICS COM 05464T104 766,179 -4,691 -0.61 15,507 -21.88 0.0097
2019-08-14 2019-06-30 13F AXSOME THERAPEUTICS COM 05464T104 770,870 770,870 19,850 0.0123
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.