LifeStance Health Group, Inc.
US ˙ NasdaqGS ˙ US53228F1012

SecurityLFST / LifeStance Health Group, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership10,367,680 shares
Latest Disclosed Value $ 66,037,902
Dimensional Fund Advisors Lp reports 16.41% increase in ownership of LFST / LifeStance Health Group, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 10,367,680 shares of LifeStance Health Group, Inc. (US:LFST) valued at $66,042,122 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 8,906,465 shares of LifeStance Health Group, Inc.. This represents a change in shares of 16.41% during the quarter. The current value of the position is $76,824,509 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)
2026-05-07 2026-03-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 10,367,680 1,461,215 16.41 66,038 5.32 0.0030
2026-02-12 2025-12-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 8,906,465 542,858 6.49 62,704 36.32 0.0132
2025-11-12 2025-09-30 13F LIFESTANCE HEALTH GROUP COM 53228F101 8,363,607 1,790,694 27.24 45,998 35.36 0.0099
2025-08-12 2025-06-30 13F LIFESTANCE HEALTH GROUP COM 53228F101 6,572,913 1,746,703 36.19 33,981 5.72 0.0079
2025-05-13 2025-03-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 4,826,210 1,301,681 36.93 32,144 23.74 0.0080
2025-02-13 2024-12-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 3,524,529 1,643,390 87.36 25,977 97.28 0.0062
2024-11-07 2024-09-30 13F LIFESTANCE HEALTH GROUP COM 53228F101 1,881,139 864,687 85.07 13,168 163.87 0.0032
2024-08-09 2024-06-30 13F LIFESTANCE HEALTH GROUP COM 53228F101 1,016,452 457,930 81.99 4,991 44.81 0.0013
2024-05-10 2024-03-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 558,522 -12,309 -2.16 3,446 -22.89 0.0009
2024-02-07 2023-12-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 570,831 -1,551 -0.27 4,470 13.66 0.0013
2023-11-09 2023-09-30 13F LIFESTANCE HEALTH GROUP COM 53228F101 572,382 367,271 179.06 3,932 110.04 0.0013
2023-08-09 2023-06-30 13F LIFESTANCE HEALTH GROUP COM 53228F101 205,111 573 0.28 1,873 23.24 0.0006
2023-05-12 2023-03-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 204,538 4,175 2.08 1,520 0.0005
2023-02-09 2022-12-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 200,363 141 0.07 1 -100.00 0.0003
2022-11-10 2022-09-30 13F LIFESTANCE HEALTH GROUP COM 53228F101 200,222 176,064 728.80 1,326 889.55 0.0005
2022-08-12 2022-06-30 13F LIFESTANCE HEALTH GROUP COM 53228F101 24,158 11,332 88.35 134 3.08 0.0000
2022-05-13 2022-03-31 13F LIFESTANCE HEALTH GROUP COM 53228F101 12,826 12,826 130 0.0000
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.