Stocks/Funds/CIK 1549408

Alethea Capital Management, LLC

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1549408
Assets
$186M
+38.9% YoY
Holdings
13
Lifetime alpha vs market
+9.06% annual
Average hold time
3.8 yr
median 3.0 yr

Quarterly history

Cum return +271% vs S&P +110% · α +161% lifetimeAUM $186M · peak $233MFlow $-2M (-1%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-0.54%
trims when stocks drop
when a holding falls −10%+
Middle response
-1.82%
baseline attrition
Rally response
-14.06%
trims into rallies
when a holding rises +10%+

Top positions · 13

Ticker$ value% portYoYHold time
AXSMAxsome Therapeutics, Inc$110M58.9%+44.9%8.5 yr
BILState Street SPDR Bloomb$59M31.5%7.0 yr
KURAKura Oncology, Inc.$12M6.7%+23.2%9.3 yr
TLTiShares 20+ Year Treasur$2M1.1%5.3 yr
TEMTempus AI, Inc.$1M0.8%-6.3%0.5 yr
RNAAtrium Therapeutics, Inc$1M0.3%0.3 yr
WFCWells Fargo & Company$0M0.3%+13.3%1.0 yr
HEDJWisdomTree Europe Hedged$0M0.2%6.3 yr
GPKGraphic Packaging Holdin$0M0.1%-60.6%0.3 yr
SPYState Street SPDR S&P 50$0M0.1%+17.6%3.0 yr
IMRXImmuneering Corporation$0M0.1%+246.7%1.0 yr
TGBTaseko Mines Limited$0M0.0%+187.9%1.5 yr
LPROOpen Lending Corporation$0M0.0%-54.7%5.3 yr

Portfolio composition (YoY)

Industry mix
Biotechnology66.0%-4.8pp$123M
Asset Management31.8%+4.3pp$59M
Asset Management - Bonds1.1%-0.6pp$2M
Medical - Healthcare Information Services0.8%$1M
Banks - Diversified0.3%$0M
Packaging & Containers0.1%$0M
Copper0.0%+0.0pp$0M
Financial - Credit Services0.0%-0.0pp$0M
Country
US100.0%-0.0pp
CA0.0%+0.0pp
Top 5: 99.0% · Top 10: 99.9% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
AXSM$78M+0.03B44.9%
SPY$8M+0.00B17.6%
KURA$4M+0.00B23.2%
TGB$0M+0.00B187.9%
LPRO$0M-0.00B-54.7%

Losers

TickerPrev $PnLYoY %
LPRO$0M-0.00B-54.7%

Top buys this quarter · 4

KURA Kura Oncology, Inc.+$12M
RNA Atrium Therapeutics, Inc.new+$1M
GPK Graphic Packaging Holding Compnew+$0M
BIL State Street SPDR Bloomberg 1-+$0M

Top sells this quarter · 7

SPY State Street SPDR S&P 500 ETF $9M
AXSM Axsome Therapeutics, Inc.$3M
WFC Wells Fargo & Company$1M
TLT iShares 20+ Year Treasury Bond$0M
RNAM Avidity Biosciences Incexit$0M
CDTX Cidara Therapeutics, Inc.exit$0M
RSPU Invesco S&P 500 Equal Weight Uexit$0M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$186M13+42.61%+17.59%+25.01%-0.00B
2025-12-31$206M13+105.70%+17.72%+87.98%-0.01B
2025-09-30$155M33+31.56%+17.52%+14.05%-0.00B
2025-06-30$132M31+22.67%+14.94%+7.73%+0.00B
2025-03-31$134M11+32.01%+8.30%+23.70%-0.02B
2024-12-31$117M30+4.41%+24.89%-20.48%-0.01B
2024-09-30$138M30+28.38%+36.04%-7.66%-0.01B
2024-06-30$132M31+9.39%+24.49%-15.11%+0.01B
2024-03-31$123M32+17.52%+29.62%-12.10%+0.03B
2023-12-31$87M35-5.45%+26.18%-31.62%-0.00B
2023-09-30$81M51+28.18%+21.57%+6.62%-0.01B
2023-06-30$94M51+42.92%+19.42%+23.49%-0.01B
2023-03-31$95M58+22.21%-7.82%+30.03%+0.01B
2022-12-31$104M43+48.65%+7.56%+41.09%-0.01B
2022-09-30$79M58+4.21%-4.93%+9.13%-0.00B
2022-06-30$80M64-6.17%-16.11%+9.94%-0.02B