Harmony Biosciences Holdings, Inc.
US ˙ NasdaqGM ˙ US4131971040

SecurityHRMY / Harmony Biosciences Holdings, Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership144,345 shares
Latest Disclosed Value $ 5,401,390
Alliancebernstein L.p. reports 14.92% decrease in ownership of HRMY / Harmony Biosciences Holdings, Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 144,345 shares of Harmony Biosciences Holdings, Inc. (US:HRMY) valued at $4,043,103 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 169,650 shares of Harmony Biosciences Holdings, Inc.. This represents a change in shares of -14.92% during the quarter. The current value of the position is $4,647,909 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 HARMONY BIOSCIENCES HLDGS IN COM 413197104 144,345 -25,305 -14.92 5,401 -14.92 0.0017
2026-02-17 2025-12-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 169,650 630 0.37 6,348 36.28 0.0020
2025-11-14 2025-09-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 169,020 16,680 10.95 4,658 -3.22 0.0015
2025-08-14 2025-06-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 152,340 9,610 6.73 4,814 1.60 0.0016
2025-05-15 2025-03-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 142,730 19,680 15.99 4,737 11.88 0.0017
2025-02-12 2024-12-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 123,050 0 0.00 4,234 -13.98 0.0014
2024-11-14 2024-09-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 123,050 -32,460 -20.87 4,922 4.92 0.0017
2024-08-14 2024-06-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 155,510 0 0.00 4,692 -10.17 0.0016
2024-05-14 2024-03-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 155,510 -10,597 -6.38 5,222 -2.67 0.0018
2024-02-14 2023-12-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 166,107 19,827 13.55 5,365 11.93 0.0021
2023-11-14 2023-09-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 146,280 63,910 77.59 4,794 65.39 0.0020
2023-08-15 2023-06-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 82,370 -19,076 -18.80 2,899 -12.50 0.0012
2023-05-15 2023-03-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 101,446 45,623 81.73 3,312 7.71 0.0014
2023-02-15 2022-12-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 55,823 23,977 75.29 3,076 118.09 0.0014
2022-11-15 2022-09-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 31,846 -3,338 -9.49 1,410 -17.83 0.0007
2022-08-15 2022-06-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 35,184 3,549 11.22 1,716 11.50 0.0008
2022-05-13 2022-03-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 31,635 -299 -0.94 1,539 13.00 0.0006
2022-02-14 2021-12-31 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 31,934 22,634 243.38 1,362 282.58 0.0005
2021-11-10 2021-09-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 9,300 -5,400 -36.73 356 -14.22 0.0001
2021-07-30 2021-06-30 13F HARMONY BIOSCIENCES HLDGS IN COM 413197104 14,700 14,700 415 0.0002
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.