51 documents showing 1–51
Date
Fund
Target
Thesis
Scores
Aug 21, 2025
Scorpion Capital
Soleno Therapeutics
SLNO
Scorpion petitions FDA to recall Soleno's VYKAT XR after 7 hospitalizations for fluid overload/potential heart failure in children and alleged safety-data manipulation invalidate the drug's risk-benefit.
N4
V1
Aug 18, 2025
Spruce Point Capital
iRhythm Technologies, Inc.
IRTC
Spruce Point argues iRhythm hid FDA-flagged Zio AT defects that killed patients and faces a DOJ cover-up probe; commoditized tech and an overstated asymptomatic market imply 40-70% downside.
N4
V3
Aug 15, 2025
Scorpion Capital
Soleno Therapeutics
SLNO
Scorpion shorts Soleno (SLNO), arguing VYKAT XR — a $500K/year repackaged 50-year-old generic — is causing pediatric heart-failure hospitalizations and was approved on sham trial data; the launch will collapse.
N4
V2
May 28, 2025
Spruce Point Capital
Tempus AI, Inc.
TEM
Tempus AI is an AI-branded diagnostics roll-up whose tiny AI revenue, Lefkofsky-linked restatement history, and round-tripped related-party deals imply 50-60% downside to ~$25-34/share.
N5
V3
May 05, 2025
Wolfpack Research
UFP Technologies, Inc.
UFPT
UFPT's largest customer Intuitive Surgical — 96.5% of 2024 organic growth — is quietly insourcing drapes and buying from rival Microtek while insiders dumped $51M in stock.
N4
V2
Jan 16, 2025
Spruce Point Capital
PROCEPT BioRobotics Corporation
PRCT
Procept trades at 14x revenue on a false 'all-prostates' TAM; Spruce Point sees channel-stuffing via DSOs at 130 days, no procedure growth, and 30-60% downside to $29-$54.
N4
V3
Jan 10, 2025
Scorpion Capital
TransMedics Group Inc
TMDX
TransMedics is a Medicare billing-fraud and kickback racket whose top transplant-center customers are fleeing as cheaper alternatives arrive — Scorpion sets a $0 target.
N5
V3
Jul 23, 2024
Muddy Waters
Eurofins Scientific SE
ERF
Eurofins' €556m 'excess cash' earned just 1.42% vs banks' quoted ~2.88%, echoing the NMC Health fraud tell; only radical disclosure on cash, entities, and Dr. Martin's real estate can clear it.
N4
V2
Jul 03, 2024
Muddy Waters
Eurofins Scientific SE
ERF
Eurofins' 800+ immaterial subsidiaries and 18 auditors enable sham sales and cash double-counting; new evidence, including a factoring denial contradicted by a former BU head, argues the financials cannot be trusted.
N4
V2
Jun 24, 2024
Muddy Waters
Eurofins Scientific SE
ERF
Muddy Waters is short Eurofins: controlling shareholder Dr. Gilles Martin has siphoned capital via above-market real-estate leasebacks for 20 years, and the financials appear engineered to overstate revenue, profits, and cash.
N4
V2
Jan 14, 2024
Scorpion Capital
TransMedics
TMDX
Scorpion petitions the FDA to suspend TransMedics' OCS Liver approval, citing pervasive off-label use, necrotic-organ device failures, and an alleged systematic cover-up of safety issues from regulators.
N4
V1
Nov 06, 2023
Citron Research
Apellis Pharmaceuticals
APLS
Citron shorts Apellis, arguing its new Geographic Atrophy drug Syfovre faces an imminent FDA warning as AAO ophthalmologists reject it 83%-17% and vasculitis cases mount.
N4
V2
Jul 13, 2023
Spruce Point Capital
Hims & Hers Health, Inc.
HIMS
HIMS is an overvalued, commoditized ED/hair-loss e-commerce business masquerading as healthcare, with CPoM regulatory risk and new OTC Eroxon competition driving 25-40% downside to $5.20-$6.50.
N4
V3
Jun 07, 2023
Muddy Waters
Chinook Therapeutics
KDNY
Chinook manipulated 2021-2022 revenues via its Chinese JV SanReno; strip out the accounting tricks and reported revenue collapses by 95% and 68% respectively, reinforcing our short.
N4
V2
May 16, 2023
Muddy Waters
Chinook Therapeutics Inc
KDNY
Muddy Waters is short Chinook (KDNY): lead drug atrasentan is inefficacious, harmful, and blocked by sparsentan's IgAN orphan-drug exclusivity — FDA approval is highly unlikely.
N4
V2
Apr 03, 2023
Scorpion Capital
Harmony Biosciences
HRMY
Scorpion petitions the FDA to pull Wakix (pitolisant), arguing the H3-receptor drug is inherently cardiotoxic, clinically inferior to $10 modafinil, and approved on fraud-tainted Russian trials.
N4
V1
Mar 28, 2023
Scorpion Capital
Harmony Biosciences Holdings
HRMY
Scorpion shorts HRMY: Wakix is a toxic, ineffective H3 antagonist propped up by sham foreign trials, an Insys-style kickback scheme, and off-label sales — collapse is imminent.
N4
V2
Feb 07, 2023
Spruce Point Capital
Progyny, Inc.
PGNY
PGNY is a $3.1bn fertility-benefits manager run by ex-WebMD/Medical Manager executives whose marketing claims, treatment model and 2023 growth are disputable, implying 60%-80% downside to $7-$14.
N5
V3
Nov 15, 2022
Scorpion Capital
Twist Bioscience
TWST
Twist is a textbook Ponzi — price-dumping commodity DNA below cost, inventing a fake 'DNA chip,' masking negative gross margins via WorldCom-style accounting fraud. Target: $0.
N5
V3
May 19, 2022
Wolfpack Research
PMV Pharmaceuticals
PMVP
PMV's Phase I readout on May 26 will disappoint: PC14586 is too weak, too toxic, and too short-lived to win FDA approval, leaving only $295M of cash behind a $628M market cap.
N4
V2
Apr 06, 2022
Spruce Point Capital
Stryker Corp.
SYK
Spruce Point exposes Stryker's FCPA-tainted accounting, failing acquisition roll-up and margin squeeze under CEO Lobo — Strong Sell with 35%-75% downside to $67-$174.50.
N4
V3
Oct 25, 2021
Spruce Point Capital
Heska Corporation
HSKA
Heska is a low-growth animal-health distributor — not the innovator management claims — masquerading at a 9x-sales SaaS multiple; Spruce Point sees 50-60% downside to $90-$115.
N4
V3
Oct 06, 2021
Scorpion Capital
Ginkgo Bioworks
DNA
Ginkgo Bioworks is a $23B SPAC fraud whose foundry 'customers' are related-party shells that round-trip cash back as phantom revenue — a US 'China Hustle' headed for a Zymergen-style collapse.
N4
V2
Sep 15, 2021
Scorpion Capital
Berkeley Lights
BLI
Berkeley Lights' $2M Beacon is a flow-cytometer knockoff customers call a clunker; with flat sales, fleeing insiders, and 50x-cheaper rivals, Scorpion pegs BLI at $0.
N5
V3
Jul 01, 2021
Kerrisdale Capital
Acutus Medical Inc.
AFIB
research note
N3
V3
Jan 07, 2021
Scorpion Capital
Nevro Corp.
NVRO
Nevro is a failed one-trick pony at 15x sales: the pivotal SENZA trial was rigged, HF10 is a phony premise, explant rates run 22-33%, and kickbacks prop up what remains of sales.
N5
V3
Nov 11, 2020
Muddy Waters
MultiPlan Corp
MPLN
MultiPlan is a financially-engineered SPAC corpse losing its biggest customer UHC to UHC's own competitor Naviguard; expect 35% revenue loss and 8x+ leverage by 2022.
N4
V2
Sep 22, 2020
Muddy Waters
Nano-X Imaging Ltd.
NNOX
Nanox's $1.3B medical-imaging story is a stock promotion: the ARC device appears to be a prop, distribution partnerships are shams, and a convicted felon engineered the IPO.
N5
V2
Sep 01, 2020
Kerrisdale Capital
AtriCure, Inc.
ATRC
AtriCure's 7.5x revenue valuation assumes stand-alone Convergent succeeds, but electrophysiologists won't refer, and PFA plus real-time mapping will obsolete surgical ablation.
N4
V3
Jun 02, 2020
Muddy Waters
eHealth, Inc.
EHTH
EHTH books Medicare Advantage revenue today that takes nine to twenty years to collect, masking a cash-incinerating, high-churn business reminiscent of Enron-style accounting.
N4
V2
Apr 22, 2020
Wolfpack Research
Inspire Medical Systems, Inc.
INSP
Inspire's surgical sleep-apnea implant is too invasive to ever scale — VA sales prove patients refuse it for free, while insiders have dumped $340M cashing out a fictional $10bn TAM story.
N4
V2
Apr 09, 2020
Spruce Point Capital
Align Technology, Inc.
ALGN
Align's Invisalign moat is eroding as FDA-approved third-party 3D-printing labs and 3M Clarity undercut prices by 50-65%, driving 40-55% downside to $80-$115.
N4
V3
Apr 08, 2020
Muddy Waters
eHealth Inc.
EHTH
eHealth books three years of Medicare Advantage commissions upfront while true churn has spiked to 47%; corrected, every MA enrollee loses $135-$402 — a cash-incinerating stock promotion.
N5
V2
Feb 10, 2020
Muddy Waters
NMC Health plc
NMC
Newly disclosed NMC share pledges corroborate Muddy Waters' hidden-debt thesis: likely Enron-style off-balance-sheet financing or subsidies from undisclosed Shetty-family related parties inflating margins.
N4
V1
Jan 15, 2020
Spruce Point Capital
LHC Group, Inc.
LHCG
LHCG's 20.6x EBITDA multiple rests on phantom organic growth — excluding the failing Almost Family acquisition inflates growth ~500 bps, masking sub-2% reality and 35-65% downside to $60-$90.
N4
V4
Dec 17, 2019
Muddy Waters
NMC Health plc
NMC.LN
NMC Health's UAE hospital empire is built on inflated capex, overstated cash, hidden reverse factoring and related-party self-dealing — Muddy Waters is short and sees deep, possibly fraudulent rot.
N5
V1
Dec 01, 2019
Grizzly Research
Trulieve Cannabis Corp
TRUL
Trulieve's premium-grower story is a fraud: cultivation is mostly cheap hoop houses, profits rely on biological-asset mark-ups, and the CEO's husband sits at the center of an FBI corruption probe.
N4
V2
Nov 07, 2019
Muddy Waters
PeptiDream, Inc.
4587 JP
PeptiDream's 19 pharma 'partnerships' are largely dormant and 13 years of R&D have produced zero Phase 2 drugs — analyst 2027 revenue forecasts will miss by over 60%.
N4
V2
Oct 29, 2019
Spruce Point Capital
Hill-Rom Holdings, Inc.
HRC
Hill-Rom is a low-quality medical roll-up whose plateauing new products, exhausted margin expansion and aggressive accounting point to a 25-55% drop to $45-$75 per share.
N5
V4
Sep 25, 2019
Spruce Point Capital
Premier, Inc.
PINC
Premier's earnings are artificially inflated by expiring pre-IPO shareback contracts; as member hospitals renegotiate at market rates, EBITDA halves and shares fall 55-75% to $8-$15.
N5
V3
Jul 31, 2019
Spruce Point Capital
Penumbra, Inc.
PEN
Penumbra is a commoditized single-product 510(k) company whose aspiration-catheter franchise is collapsing to deep-pocketed bundlers; Spruce Point sees 40-55% downside to $85-110 per share.
N4
V3
Jul 01, 2019
Kerrisdale Capital
CareDx, Inc.
CDNA
CareDx is a $1.7bn story built on AllSure, a cfDNA kidney-rejection test that misses 40% of rejections and faces 70% annual patient attrition, competition and Medicare reset — ~70% downside.
N4
V2
Mar 21, 2019
Spruce Point Capital
Dexcom, Inc.
DXCM
Dexcom's blow-out growth is a sugar high — driven by hidden price hikes and sensor stockpiling — and Abbott's cheap Libre 2 will commoditize CGMs, taking DXCM down 45-60% to $65-$85.
N4
V3
Feb 25, 2019
Muddy Waters
Inogen
INGN
INGN's growth narrative rests on an inflated $3-4B TAM that Medicare data contradicts; under a realistic 1.3M-user market, peak unit sales arrive this year or next.
N4
V1
Feb 15, 2019
Citron Research
Inogen
INGN
Inogen's growth is built on a reseller network that lies to elderly customers about Medicare coverage to force cash sales — competition and oversight will collapse margins to a $46 stock.
N4
V2
Feb 08, 2019
Muddy Waters
Inogen, Inc.
INGN
Inogen's growth story rests on a fabricated TAM sourced from a plagiarism-riddled WinterGreen report; real market is shrinking, peak sales arrive 2019-2020, target $46 (-67%).
N5
V2
Sep 20, 2017
Viceroy Research
MiMedx Group
MDXG
research note
N1
V1
Jun 29, 2017
Muddy Waters
Prothena Corp PLC
PRTA
Short PRTA: publicly-available NEOD001 data does not show efficacy — organ responses are likely driven by prior PCD chemo, not the drug, and $1.5B peak sales are unrealistic.
N4
V2
Aug 29, 2016
Muddy Waters
St. Jude Medical
STJ
STJ's rebuttal to Muddy Waters' cybersecurity short report is 80% fluff and 20% substance, with admissions and deception cues that confirm its cardiac devices remain unsafe and need recall.
N4
V1
Aug 25, 2016
Muddy Waters
St. Jude Medical, Inc.
STJ
St. Jude's $23B cardiac-device franchise rests on a Merlin ecosystem so insecure that hackers can crash pacemakers from 50 feet — a recall and two-year remediation imply 50%+ downside and likely covenant breach.
N5
V2
Oct 21, 2015
Citron Research
Valeant Pharmaceuticals
VRX
Valeant is channel-stuffing through a web of captive specialty pharmacies (Philidor, R&O, plus cloned shells) to fabricate invoices and book phantom revenue — a potential Pharmaceutical Enron; price target $50.
N5
V3