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Analyst Tracker/David Westenberg
PIPR

David Westenberg

Piper Sandler
Wall Street Analyst
★★★★★
#300
on 13Foresight · ranked by our own returns
68%
Success Rate
+9.5%
Average Return
52 of 76 calls profitable · +5.5% vs benchmark
S&P 500 (SPY)
📈 Across the calls we could measure, roughly 68% of David Westenberg's ratings turned a profit when each position was held for 1 year — averaging +9.5% per rating. These figures are computed by 13Foresight from historical prices, not supplied by the analyst.

Rating Distribution

95 Buy 62 Hold 0 Sell
David's Stock Coverage 40 ratings · 2026-08-11
Company Date Position Consensus ⓘ Price Target ⓘ 1-Yr Return vs S&P 500 ⓘ
TXG
10x Genomics
 Aug 10, 2026 HOLD Buy
-29.7% avg upside
18 analysts
$47.00
19.74% Downside
 +2.8% ·
ELAN
Elanco Animal Health
 Aug 10, 2026 BUY Strong Buy
+41.2% avg upside
18 analysts
$30.00
34.68% Upside
 +0.0% ·
ZTS
Zoetis
 Aug 10, 2026 HOLD Buy
+62.5% avg upside
23 analysts
$80.00
6.85% Upside
 +0.7% ·
NTRA
Natera
 Aug 07, 2026 BUY Strong Buy
-7.1% avg upside
27 analysts
$249.00
21.87% Downside
 -2.9% ·
PACB
Pacific Biosciences
 Aug 06, 2026 HOLD Buy
+281.2% avg upside
14 analysts
$2.00
73.92% Upside
 -2.6% ·
CTKB
Cytek Biosciences
 Aug 06, 2026 BUY Buy
+22.1% avg upside
5 analysts
$7.50
60.96% Upside
 +0.0% ·
BLLN
BillionToOne, Inc. Class A
 Aug 06, 2026 BUY Strong Buy
+24.4% avg upside
9 analysts
$120.00
21.63% Upside
 +6.9% ·
CAI
Caris Life Sciences, Inc.
 Aug 06, 2026 HOLD Strong Buy
+19.5% avg upside
20 analysts
$21.00
10.29% Downside
 +15.7% ·
GRAL
GRAIL Inc
 Aug 06, 2026 HOLD Strong Buy
-6.9% avg upside
8 analysts
$56.00
25.24% Downside
 +18.0% ·
TWST
Twist Bioscience
 Aug 05, 2026 BUY Strong Buy
-27.5% avg upside
14 analysts
$115.00
7.96% Downside
 +7.7% ·
WAT
Waters
 Aug 05, 2026 HOLD Strong Buy
-4.1% avg upside
31 analysts
$400.00
2.81% Downside
 +1.7% ·
VCYT
Veracyte
 Aug 04, 2026 BUY Strong Buy
+8.9% avg upside
19 analysts
$54.00
16.77% Upside
 -0.1% ·
TEM
Tempus AI, Inc. Class A
 Aug 04, 2026 HOLD Strong Buy
+18.4% avg upside
21 analysts
$56.00
1.62% Upside
 +18.4% ·
WGS
GeneDx Holdings
 Aug 04, 2026 BUY Strong Buy
+3.6% avg upside
9 analysts
$63.00
19.07% Downside
 +15.3% ·
ADPT
Adaptive Biotechnologies
 Aug 04, 2026 BUY Strong Buy
-6.6% avg upside
15 analysts
$27.50
8.04% Upside
 +5.0% ·
GH
Guardant Health
 Aug 04, 2026 BUY Strong Buy
-2.5% avg upside
31 analysts
$193.00
15.50% Upside
 +2.3% ·
FLGT
Fulgent Genetics
 Aug 04, 2026 HOLD Buy
+132.7% avg upside
7 analysts
$19.00
0.37% Downside
 +0.0% ·
LH
Labcorp Holdings
 Aug 04, 2026 HOLD Strong Buy
-15.3% avg upside
37 analysts
$309.00
3.81% Downside
 +2.9% ·
ILMN
Illumina
 Aug 03, 2026 BUY Buy
-8.0% avg upside
31 analysts
$225.00
17.39% Upside
 -2.7% ·
NEOG
Neogen
 Aug 03, 2026 HOLD Buy
+107.4% avg upside
6 analysts
$13.00
14.03% Upside
 -3.6% ·
MYGN
Myriad Genetics
 Jul 31, 2026 BUY Hold
+448.2% avg upside
24 analysts
$8.50
161.44% Upside
 +11.9% ·
FR:BIM
bioMerieux
 Jul 29, 2026 HOLD Buy
+34.6% avg upside
12 analysts
$80.00
9.23% Upside
 +0.9% ·
TMO
Thermo Fisher
 Jul 27, 2026 HOLD Strong Buy
+1.2% avg upside
38 analysts
$600.00
0.08% Upside
 +7.2% ·
DHR
Danaher
 Jul 27, 2026 HOLD Strong Buy
+1.4% avg upside
45 analysts
$200.00
4.55% Downside
 +4.2% ·
TECH
Bio-Techne
 Jun 11, 2026 HOLD Buy
+15.5% avg upside
21 analysts
$65.00
9.85% Downside
 +33.8% ·
IT:DIA
DiaSorin S.p.A.
 Jun 11, 2026 HOLD Sell
+42.3% avg upside
10 analysts
$75.00
1.77% Downside
 +12.0% ·
A
Agilent
 Jun 11, 2026 HOLD Strong Buy
+0.1% avg upside
33 analysts
$150.00
0.94% Upside
 +15.4% ·
TRUP
Trupanion
 May 01, 2026 BUY Strong Buy
+39.4% avg upside
19 analysts
$45.00
54.78% Upside
 +12.3% ·
NEO
NeoGenomics
 Apr 30, 2026 BUY Strong Buy
+3.3% avg upside
18 analysts
$13.00
21.74% Downside
 +78.9% ·
IDXX
Idexx Laboratories
 Feb 09, 2026 HOLD Buy
+22.8% avg upside
17 analysts
$750.00
25.93% Upside
 -6.9% ·
DGX
Quest Diagnostics
 Oct 27, 2025 HOLD Buy
-22.7% avg upside
34 analysts
$200.00
15.80% Downside
 +34.0% ·
GB:ONT
Oxford Nanopore Technologies PLC
 Sep 03, 2025 BUY Strong Buy
+59.0% avg upside
6 analysts
$190.00
47.34% Upside
 -27.5% ·
IMDX
Insight Molecular Diagnostics
 Nov 13, 2023 HOLD Buy
+12.4% avg upside
10 analysts
$3.00
37.13% Downside
 +6.6% ·
RNLXY
Renalytix
 Oct 04, 2021 BUY Strong Buy
+228.6% avg upside
5 analysts
$28.00
761.49% Upside
 · ·
PAHC
Phibro Animal Health
 May 23, 2019 HOLD Sell
+8.9% avg upside
10 analysts
 — -15.2% ·
RGEN
Repligen
 Dec 17, 2018 BUY Strong Buy
+6.0% avg upside
25 analysts
$65.00
60.08% Downside
 +66.7% ·
PETS
Petmed Express
 Jun 15, 2018 HOLD Sell
+611.9% avg upside
6 analysts
 — -58.2% ·
BIO
Bio-Rad Laboratories
 Feb 16, 2018 HOLD Buy
+1.5% avg upside
9 analysts
 — +8.6% ·
QDEL
QuidelOrtho
 Jan 04, 2018 BUY Buy
+206.1% avg upside
13 analysts
$52.00
278.14% Upside
 +6.8% ·
CENT
Central Garden Pet
 Dec 07, 2017 BUY Strong Buy
+5.3% avg upside
9 analysts
$47.00
6.99% Upside
 -18.5% ·
🔒 35 more ratings — with price targets, crowd consensus and our measured returns.
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David Westenberg — Frequently Asked Questions
How accurate are David Westenberg's stock ratings?
Based on the calls 13Foresight could measure, about 65% of David's ratings were profitable over a one-year hold, with an average return of +9.2% per rating, or +5.1% 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 David ranked on 13Foresight?
David Westenberg is currently ranked #300 with a 5-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 David cover?
David most recently has ratings on TXG, ELAN, ZTS, NTRA, PACB, CTKB, BLLN, CAI, GRAL, TWST, WAT, VCYT and 28 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.