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Analyst Tracker/Kostas Biliouris
OPCO

Kostas Biliouris

Wall Street Analyst
★★★☆☆
#1679
on 13Foresight · ranked by our own returns
53%
Success Rate
+12.3%
Average Return
23 of 43 calls profitable · +2.7% vs benchmark
S&P 500 (SPY)
📈 Across the calls we could measure, roughly 53% of Kostas Biliouris's ratings turned a profit when each position was held for 1 year — averaging +12.3% per rating. These figures are computed by 13Foresight from historical prices, not supplied by the analyst.

Rating Distribution

64 Buy 26 Hold 0 Sell
Kostas's Stock Coverage 29 ratings · 2026-08-13
Company Date Position Consensus Price Target 1-Yr Return vs S&P 500
LEGN
Legend Biotech
Aug 12, 2026 HOLD Strong Buy
+199.8% avg upside
27 analysts
$40.00
93.69% Upside
-0.9% ·
SRPT
Sarepta Therapeutics
Aug 06, 2026 BUY Buy
+225.4% avg upside
49 analysts
$35.00
90.36% Upside
+0.0% ·
OVID
Ovid Therapeutics
Aug 03, 2026 BUY Strong Buy
+92.6% avg upside
18 analysts
$9.00
243.54% Upside
+20.2% ·
ALNY
Alnylam Pharma
Jul 31, 2026 BUY Strong Buy
+44.8% avg upside
51 analysts
$350.00
56.35% Upside
+10.5% ·
PRME
Prime Medicine, Inc.
Jul 24, 2026 BUY Strong Buy
+205.0% avg upside
16 analysts
$11.00
243.73% Upside
+6.8% ·
NRIX
Nurix Therapeutics
Jul 10, 2026 BUY Strong Buy
+22.8% avg upside
28 analysts
$28.00
5.05% Upside
+17.9% ·
PRQR
ProQR
Jul 06, 2026 BUY Strong Buy
+505.4% avg upside
18 analysts
$9.00
383.85% Upside
+7.6% ·
IRD
Opus Genetics
Jun 17, 2026 BUY Strong Buy
+174.6% avg upside
25 analysts
$10.00
165.92% Upside
-8.4% ·
DSGN
Design Therapeutics
Jun 15, 2026 BUY Strong Buy
+25.1% avg upside
9 analysts
$21.00
43.20% Upside
+29.2% ·
DTIL
Precision BioSciences
Jun 09, 2026 BUY Strong Buy
+218.2% avg upside
12 analysts
$20.00
169.48% Upside
+6.4% ·
TRDA
Entrada Therapeutics Inc
Jun 03, 2026 BUY Strong Buy
+179.0% avg upside
10 analysts
$23.00
199.95% Upside
+13.2% ·
EVMN
Evommune, Inc.
May 15, 2026 BUY Strong Buy
+169.7% avg upside
12 analysts
$50.00
254.04% Upside
-38.6% ·
TSE:MSCL
Satellos Bioscience
Apr 20, 2026 BUY Strong Buy
+136.2% avg upside
6 analysts
$55.78
303.87% Upside
+28.3% ·
PEPG
PepGen Inc.
Mar 31, 2026 BUY Strong Buy
+265.4% avg upside
9 analysts
$15.00
417.23% Upside
+58.2% ·
KRRO
Korro Bio
Mar 13, 2026 BUY Strong Buy
+104.1% avg upside
19 analysts
$22.00
64.79% Upside
+3.8% ·
BMRN
BioMarin Pharmaceutical
Sep 25, 2025 HOLD Strong Buy
+35.2% avg upside
52 analysts
+31.4% ·
MGX
Metagenomi, Inc.
Sep 25, 2025 HOLD Strong Buy
+598.5% avg upside
8 analysts
-46.5% ·
FDMT
4D Molecular Therapeutics
Sep 25, 2025 HOLD Strong Buy
+198.8% avg upside
15 analysts
+37.8% ·
SLN
Silence Therapeutics
Sep 25, 2025 HOLD Strong Buy
+146.8% avg upside
10 analysts
+179.4% ·
DYN
Dyne Therapeutics
Sep 25, 2025 HOLD Strong Buy
+51.5% avg upside
31 analysts
+106.4% ·
JSPR
Jasper Therapeutics
Sep 25, 2025 HOLD Strong Buy
+3394.0% avg upside
18 analysts
-64.6% ·
BEAM
Beam Therapeutics
Sep 25, 2025 HOLD Strong Buy
+94.3% avg upside
25 analysts
+15.2% ·
BBIO
BridgeBio Pharma
Sep 25, 2025 HOLD Strong Buy
+12.8% avg upside
34 analysts
+65.7% ·
NTLA
Intellia Therapeutics
Sep 25, 2025 HOLD Buy
+220.1% avg upside
37 analysts
-28.5% ·
RCKT
Rocket Pharmaceuticals
Sep 25, 2025 HOLD Buy
+384.4% avg upside
29 analysts
+4.7% ·
IONS
Ionis Pharmaceuticals
Sep 25, 2025 HOLD Strong Buy
+40.4% avg upside
43 analysts
-9.6% ·
CRSP
Crispr Therapeutics AG
Sep 23, 2025 BUY Buy
+40.0% avg upside
41 analysts
$75.00
38.89% Upside
-11.1% ·
LENZ
LENZ Therapeutics
Jan 29, 2024 HOLD Buy
+306.3% avg upside
17 analysts
+159.6% ·
LGND
Ligand Pharma
Jun 16, 2022 BUY Strong Buy
-6.6% avg upside
15 analysts
$77.00
73.76% Downside
+64.8% ·
🔒 24 more ratings — with price targets, crowd consensus and our measured returns.
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Kostas Biliouris — Frequently Asked Questions
How accurate are Kostas Biliouris's stock ratings?
Based on the calls 13Foresight could measure, about 53% of Kostas's ratings were profitable over a one-year hold, with an average return of +12.4% per rating, or +2.7% versus the S&P 500. We score every analyst the same way, from historical prices. Each return is measured in the stock's own trading currency, so for non-US listings the S&P 500 comparison leaves out currency moves.
How is Kostas ranked on 13Foresight?
Kostas Biliouris is currently ranked #1679 with a 3-star rating. Our rank blends hit rate, average return versus the market, and how many calls we have to judge — so a long, consistent record outweighs a few lucky picks. It is our own calculation, updated daily.
Which stocks does Kostas cover?
Kostas most recently has ratings on LEGN, SRPT, OVID, ALNY, PRME, NRIX, PRQR, IRD, DSGN, DTIL, TRDA, EVMN and 17 more. See the full coverage table above for positions, price targets and our measured returns.
Where can I see other analyst ratings?
Browse the full analyst leaderboard to compare Wall Street analysts ranked by their measured performance, success rate and average return.

Disclaimer: 13Foresight compiles analyst ratings and price targets from publicly available sources. Performance metrics, rankings and star ratings shown here are calculated independently by 13Foresight from historical market prices and may differ from figures published elsewhere. This information may be incomplete, delayed or inaccurate, is provided for research and informational purposes only, and is not investment advice. The underlying ratings and opinions are those of the respective analysts and their firms; 13Foresight accepts no liability for any decisions made based on this data.