Stocks/Funds/CIK 2032489

Rubicon Founders LLC

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 2032489
Assets
$138M
-15.4% YoY
Holdings
3
Lifetime alpha vs market
-28.34% annual
Average hold time
1.7 yr
median 1.3 yr

Quarterly history

Cum return -34% vs S&P +41% · α -74% lifetimeAUM $138M · peak $213MFlow $2M (+1%)2023-122024-062024-122025-062025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+2.45%
adds when stocks drop
when a holding falls −10%+
Middle response
+0.00%
baseline attrition
Rally response
+44.38%
adds into rallies
when a holding rises +10%+

Top positions · 3

Ticker$ value% portYoYHold time
PRVAPrivia Health Group, Inc$122M88.9%-8.4%2.5 yr
EVHEvolent Health, Inc.$13M9.6%-75.9%1.3 yr
$2M1.4%1.3 yr

Portfolio composition (YoY)

Industry mix
Medical - Healthcare Information Services98.6%+15.0pp$136M
Unknown1.4%-15.0pp$2M
Country
US98.6%+15.0pp
Unknown1.4%-15.0pp
Top 5: 100.0% · Top 10: 100.0% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
EVH$6M-0.00B-75.9%
PRVA$130M-0.01B-8.4%

Losers

TickerPrev $PnLYoY %
PRVA$130M-0.01B-8.4%
EVH$6M-0.00B-75.9%

Top buys this quarter · 1

PRVA Privia Health Group, Inc.+$122M

Top sells this quarter · 1

$0M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$138M3-31.29%+17.59%-48.88%+0.00B
2025-12-31$164M3-5.08%+17.72%-22.80%-0.00B
2025-09-30$199M3+22.78%+17.52%+5.26%-0.01B
2025-06-30$213M3+32.18%+14.94%+17.24%+0.04B
2025-03-31$163M3+13.63%+8.30%+5.33%+0.03B
2024-12-31$113M1-15.11%+24.89%-40.00%-0.00B
2024-09-30$105M1+4.78%+5.75%-0.98%+0.00B
2024-06-30$100M1-11.28%+4.38%-15.66%+0.01B
2024-03-31$102M1-14.94%+10.39%-25.33%-0.00B
2023-12-31$120M1