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RB

Robert Bessler

LFST
DIRECTOR · LIFESTANCE HEALTH GROUP, INC. · CIK 0001864881
FILING MIX · LIFETIME10%/90%
BUYS
3
SELLS
28
TOTAL VALUE
$16.99M
COMPANIES
1
ACTIVE SINCE
Jul 2023
HOLDINGS NOW
539,763
AVG SELL PX
$8.85
TRADE KIND
SHOWING 31 / 31
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
16 backtested trades · 8 horizons · 42 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Robert Bessler, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d16+18.75%+2.95%+1.12%+1.83%+1.28%—
14d16+31.25%+2.47%+1.74%+1.74%+1.84%—
30d16+25.00%+1.73%+2.36%-3.77%+2.19%—
60d16(1 pending)+20.00%+9.11%+4.06%+5.05%+1.44%—
90d16(6 pending)+90.00%-11.26%+1.80%-13.06%-5.19%—
180d16(6 pending)+30.00%+7.32%+12.30%-4.98%+3.72%—
1y16(13 pending)+66.67%-6.19%+24.77%-30.96%-30.01%—
2y16(16 pending)——————
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
LFST · 539,763 shares · as of Jun 26, 2026
0385,312770,6241,155,9351,541,247202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 3 buys / 28 sellsCOVERAGE · 12 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
447,168$10.13$4.53M539,763Jun 26, 2026Jun 30, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
447,169$10.13$4.53M656,560Jun 26, 2026Jun 30, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE
287,517$8.02$2.31M1,103,729May 12, 2026May 14, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE
287,517$8.02$2.31M986,931May 12, 2026May 14, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
37,500$8.55$320.6K1,236,948May 7, 2026May 11, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
37,500$8.55$320.6K1,353,746May 7, 2026May 11, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
31,074$7.05$219.1K1,391,246Apr 24, 2026Apr 27, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
31,073$7.05$219.1K1,274,448Apr 24, 2026Apr 27, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
3,876$7.00$27.1K1,305,521Apr 23, 2026Apr 27, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
3,876$7.00$27.1K1,422,320Apr 23, 2026Apr 27, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
2,550$7.01$17.9K1,426,196Apr 21, 2026Apr 23, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
2,551$7.01$17.9K1,309,397Apr 21, 2026Apr 23, 2026 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
850$7.04$6.0K1,318,133Dec 22, 2025Dec 23, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
851$7.04$6.0K1,434,932Dec 22, 2025Dec 23, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
59,971$7.04$422.2K1,435,783Dec 19, 2025Dec 23, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
59,971$7.04$422.2K1,318,983Dec 19, 2025Dec 23, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
3,221$7.00$22.5K1,495,754Dec 18, 2025Dec 19, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
3,221$7.00$22.5K1,378,954Dec 18, 2025Dec 19, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
6,186$7.00$43.3K1,375,989Dec 15, 2025Dec 16, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
6,185$7.00$43.3K1,492,790Dec 15, 2025Dec 16, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
39,815$7.01$279.1K1,498,975Dec 12, 2025Dec 16, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
39,815$7.01$279.1K1,382,175Dec 12, 2025Dec 16, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
PURCHASEGRANT
Stock grant
35,714——57,619Jun 11, 2025Jun 13, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
2,450$7.01$17.2K1,538,790Apr 9, 2025Apr 10, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
2,450$7.01$17.2K1,421,990Apr 9, 2025Apr 10, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
7$7.00$491,424,440Apr 8, 2025Apr 10, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
7$7.00$491,541,240Apr 8, 2025Apr 10, 2025 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
37,500$7.54$282.8K1,541,247Nov 27, 2024Dec 2, 2024 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
SALE10b5-1
10b5-1 plan
37,500$7.54$282.8K1,424,447Nov 27, 2024Dec 2, 2024 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
PURCHASEGRANT
Stock grant
36,363——36,363Jul 21, 2024Aug 27, 2024 ↗View →
LFST
LIFESTANCE HEALTH GROUP, INC.
PURCHASEGRANT
Stock grant
21,905——21,905Jul 1, 2023Jul 5, 2023 ↗View →
Other insiders · LFST
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About this filer
CIK 0001864881
ROLE
Director
PRIMARY
LFST
COMPANIES
1
ACTIVE SINCE
Jul 2023
MARKETPEEL · /INSIDER/0001864881DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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