Genomics
The first RNAi company to scale to profitability — Amvuttra's ATTR-CM launch turned a 20-year science project into a >$5B-revenue franchise inflecting at +71% guided; the bet is whether durable TTR leadership + a 40-program pipeline justify ~70x forward earnings before nucresiran fixes the Sanofi royalty drag.
Research
The verdict
The first RNAi company to scale to profitability — Amvuttra's ATTR-CM launch turned a 20-year science project into a >$5B-revenue franchise inflecting at +71% guided; the bet is whether durable TTR leadership + a 40-program pipeline justify ~70x forward earnings before nucresiran fixes the Sanofi royalty drag.
Alnylam is the world's leading RNA interference (RNAi) therapeutics company — it silences disease-causing genes by delivering small interfering RNA (siRNA) that degrades a specific messenger RNA before it makes a harmful protein. After two decades of platform-building and accumulated losses, the company achieved profitability for the first time in 2025. The model is now a real commercial P&L, not a pipeline-only story — which is why this runs as an operating battery.
What it sells (four wholly-owned commercial products + two partner-marketed):
Customers / channel: specialty pharma distribution to physicians treating rare and (now) cardiac-amyloid patients; revenue is overwhelmingly U.S. (see Lens 4). The product is buy-and-bill / specialty-pharmacy, not retail.
Contract structure — the load-bearing economic fact: Amvuttra carries a tiered royalty owed to Sanofi on global net sales (a legacy of the patisiran/vutrisiran TTR license): 15% on the first $150M, escalating through 17.5% / 20% / 25%, and 30% on annual sales above $1.5B. As Amvuttra scales past $1.5B/yr, an increasing slice of every incremental dollar leaks to Sanofi — this is the central margin headwind and the reason management keeps pointing at nucresiran (next-gen TTR, zero Sanofi royalty) as the gross-margin fix.
Strategy: "Alnylam 2030" (launched Jan 2026) — the public five-year aspiration: expand to 10 tissue types and >40 clinical programs, deliver ≥2 new non-TTR blockbusters, invest ~30% of revenue in non-GAAP R&D, hit 25%+ total-revenue CAGR, and reach ~30% non-GAAP operating margin by year-end 2030.
RNAi therapeutics are chemically synthesized oligonucleotides — the "supply chain" is manufacturing + conjugation chemistry + cold-ish specialty distribution, not a multi-tier hardware BOM. Mapping upstream → company → patient:
Chokepoints: oligonucleotide manufacturing scale-up (industry-wide constraint as siRNA volumes grow); single-source API steps; and the Sanofi royalty as an economic chokepoint on the flagship.
Alnylam's moat is the strongest in its sub-sector, and it is multi-layered:
Bargaining power: strong over patients/payers in rare disease (no alternative); weaker in ATTR-CM where three franchises now compete and payers gain leverage; and structurally weak vs. Sanofi, who holds an escalating royalty on the flagship that Alnylam cannot renegotiate away (only out-innovate via nucresiran).
Alnylam reports a single operating segment but discloses revenue by product and by geography. The story is total TTR-franchise concentration and U.S. concentration.
Q1 2026 net product revenue by product (vs. Q1 2025), $000s:
| Product | Q1 2026 | Q1 2025 | YoY |
|---|---|---|---|
| AMVUTTRA | 889,931 | 309,992 | +187% |
| ONPATTRO | 20,481 | 49,489 | −59% |
| Total TTR | 910,412 | 359,481 | +153% |
| GIVLAARI | 74,394 | 66,968 | +11% |
| OXLUMO | 51,321 | 42,089 | +22% |
| Total Rare | 125,715 | 109,057 | +15% |
| Total net product revenue | 1,036,127 | 468,538 | +121% |
Geography (Amvuttra, Q1 2026): U.S. $702.6M (+255%), Europe $113.3M (+41%), RoW $74.1M (+132%). The U.S. is the entire growth engine — the ATTR-CM launch is a U.S. cardiology phenomenon. This is geographic and product concentration stacked.
FY2025 by product, $000s: AMVUTTRA 2,313,836 (+138%); ONPATTRO 172,789 (−32%); Total TTR 2,486,625 (+103%); plus Rare (~$500M) → Total net product revenue $2,986,549 (+81%).
Trend & cause — accelerating, single-driver: TTR went from 83% of FY2025 product revenue to 88% in Q1 2026, and Amvuttra alone is ~86% of Q1 product revenue. The Onpattro decline is intentional cannibalization — same target, Amvuttra is the better dosing form. Concentration is the price of the inflection: one drug, one indication (ATTR-CM), one geography (U.S.) is carrying the company. Total revenue (incl. collaborations + royalty): FY2025 $3,713.9M (+65%), Q1 2026 $1,167.2M (+96%).
The Q1 2026 print (reported 2026-04-30) is the cleanest evidence of the inflection.
Unusual vs. its own history: the swing from chronic losses (accumulated deficit $6.70B at YE2025) to a $206M quarterly profit in ~12 months is the standout. Nothing in the print looks aggressive; the SBC and royalty-interest non-cash items are large but disclosed (Lens 10).
No transcripts on disk (transcripts/ empty) — web-grounded. Management tone across the last several quarters has shifted from "approaching profitability / launch execution" to "durable TTR leadership + harvest the cash to fund the pipeline.". The recurring phrases now: "Alnylam 2030," "durable leadership in TTR," "financial discipline and agility," "high-yielding pipeline with blockbuster opportunities." CEO Yvonne Greenstreet used the 2025 results + Alnylam 2030 launch to reframe the company from emerging biotech to sustainably profitable RNAi leader. What they've stopped saying: any hedging about reaching profitability — that question is answered. The new contested ground management proactively addresses: ATTR-CM competitive positioning vs. the orals, and the nucresiran margin story. Sentiment: confident, execution-focused, slightly defensive on competition — appropriate for a company whose growth is now a "can they hold share" question, not a "will it work" question.
Alnylam is a growth-at-scale RNAi leader — its multiples sit far above pre-revenue RNAi peers and reflect priced-in hyper-growth. Provenance-critical: multiples are `` with date, or n/a.
| Company | Ticker | Mkt cap | EV/Sales | Fwd P/E | Div yield | Note |
|---|---|---|---|---|---|---|
| Alnylam | ALNY | ~$37-43B (June 2026; wide by source/date) | P/S ~14.6 (LTM) | ~70.6 | 0% | RNAi leader, just profitable |
| Ionis Pharmaceuticals | IONS | n/a — not pulled this run | n/a | n/a | 0% | Antisense/RNAi, partner-heavy; first solo neuro launch (zilganersen) 2026 |
| Arrowhead Pharmaceuticals | ARWR | n/a | n/a | n/a | 0% | RNAi (TRiM platform); first FDA approval (REDEMPLO/FCS) only $57M sales 9M-2025 — years behind ALNY commercially |
| Vertex Pharmaceuticals | VRTX | n/a | n/a | n/a | 0% | Best read-across for a profitable, platform-driven, rare-disease franchise; not RNAi |
Read: the direct RNAi comps (Ionis, Arrowhead) are not valuation comps — they're pre-scale; Arrowhead's first drug did $57M over nine months vs Alnylam's $1B in one quarter. Alnylam has no peer at its commercial stage in RNAi — it is the category. The right valuation frame is "profitable specialty/rare-disease grower priced for ~25%+ CAGR," i.e. a Vertex-like multiple structure. Forward P/E ~70 and P/S ~14.6 are not cheap — they bake in flawless execution of the +71% guide and continued ATTR-CM dominance. Specific peer multiples were not sourced this run and are marked n/a rather than fabricated. 5-yr average ROE is not meaningful — Alnylam was loss-making for most of the period (accumulated deficit $6.70B; positive ROE only emerged 2025).
The market reacts to TTR/ATTR-CM datapoints and competitive news, far more than to GAAP prints:
Pattern: ALNY is a single-franchise momentum stock dressed as a diversified biotech — the dominant variable is the Amvuttra growth slope and ATTR-CM share, not earnings quality. A growth slope that decelerates (even while still growing) is the documented downside trigger.
insider-transactions.csv absent) — n/a; worth pulling before a position.SEC enforcement: None. Zero SEC Litigation Releases and zero AAERs naming Alnylam in 2021-06-20 → 2026-06-20.
Item 3 / Legal Matters (10-K Note 13): the disclosure is generic industry boilerplate — patent litigation, product liability, government investigations described as categories common to the industry, with no specific material pending matter accrued or quantified. For a 20-year-old RNAi pioneer this is notably clean (no marquee patent war disclosed as material as of the 10-K).
Non-SEC enforcement (web): no material FTC/DOJ/FDA enforcement actions, consent decrees, or settlements surfaced for Alnylam in the search window.
Accounting risks to watch (label every figure):
Verdict on the books: clean accounting, no enforcement history, conservative receivables. The only forensic homework is the royalty-liability footnote and the GAAP-vs-non-GAAP margin framing — disclosure quality is good; the complexity is real.
No material regulatory or legal findings — verified via SEC EDGAR EFTS (LR, AAER), web search, and 10-K Note 13 / Item 3 as of 2026-06-20.
Built bottom-up from FY2025 actuals + FY2026 company guidance. Every output line is `` with the arithmetic shown; no forecast.ts logged (watchlist breadth rule).
Anchors: FY2025 GAAP diluted EPS $2.39; FY2025 net income $313.7M; FY2025 total product revenue $2,986.5M; FY2026 guidance: total product revenue $4.9-5.3B (~$5.1B mid), TTR $4.4-4.7B, collab+royalty $400-500M. Shares ~133.5M.
| FY2026E | FY2027E | FY2028E | |
|---|---|---|---|
| Base | ~$5.20-6.00 | ~$7-9 | ~$9-12 |
| Bull | ~$6.50+ | ~$10+ | ~$14+ |
| Bear | ~$3.50-4.00 | ~$4-5 | ~$5-6 |
Key sensitivity: the model is not EPS-fragile in FY2026 (guidance + Q1 run-rate de-risk it) — it is multiple-fragile. At ~70x forward earnings, the EPS could grow 30%+ and the stock still fall if the growth-durability narrative cracks.
rNPV note (pipeline overlay): the three pipeline binaries that matter most — nucresiran (the margin fix + TTR-franchise extension), zilebesiran (hypertension, a potential mega-market second leg with Roche), mivelsiran (Alzheimer's/CAA, high-risk/high-reward CNS shot) — are call options on top of the TTR base. Formal rNPV not computed this run (peak-sales × PoS inputs not sourced); flagged as the highest-value modeling work before sizing a long-dated position.
Bull case. Alnylam is the RNAi platform company and the first to prove the modality scales to a real, profitable, multi-billion-dollar P&L — a structural milestone the pre-revenue peers (Arrowhead at $57M, Ionis pre-solo-launch) are years from. The TTR franchise is inflecting at +71% guided off a U.S. ATTR-CM launch where Amvuttra's mechanism (silence, q3-month shot) is differentiated against daily-pill stabilizers. Profitability flips the company from dilution-dependent to self-funding a 40-program pipeline — and that pipeline carries genuine second-leg optionality (zilebesiran in hypertension is a potential mass-market drug with Roche footing the CVOT bill; nucresiran both extends TTR leadership and fixes the gross margin by ditching the Sanofi royalty). Management did exactly what it said on profitability — earned credibility for the Alnylam 2030 plan. Consensus is Strong Buy, ~$504 average target vs ~$305-327 spot — the Street sees ~50%+ upside.
Bear case (permanent-impairment risks). (1) The whole company is one drug, one indication, one country — Amvuttra ATTR-CM in the U.S. is ~86% of product revenue. Anything that caps that — oral competition (acoramidis ramping, generic tafamidis from 2026 pressuring the entire ATTR price umbrella), a safety signal, or simply slower-than-guided uptake — hits the core, not a wing. (2) The Sanofi royalty structurally caps margin on the flagship (30% above $1.5B), and the fix (nucresiran) is years and Phase-3 risk away. (3) Valuation is the bear's strongest card: ~70x forward earnings / ~14.6x sales prices flawless execution; a deceleration from +71% to +20% growth — still excellent — could halve the multiple. Pre-mortem (18 months out, thesis broke): Amvuttra ATTR-CM net revenue grew but missed the guide as orals took more new-patient share than modeled and payers used three-way competition to force net price down; the +71% guide became +45%; the ~70x multiple compressed to ~35x; a pipeline readout (zilebesiran or mivelsiran) disappointed, removing the "second leg" call option — and the stock fell 30-40% on growth that was still, in absolute terms, very good.
Are multiples too high? For the base case, ~70x forward is rich but defensible if 25%+ CAGR holds for years and a second leg emerges. For the bear case it is clearly too high. The multiple, not the earnings, is the risk.
Contrarian view (what the market may be refusing to see): the bull consensus ($504 PT, Strong Buy) may be underweighting how good the orals' convenience is in a chronic cardiac population, and overweighting the second-leg pipeline (zilebesiran's CVOT is a multi-year, high-bar readout; CNS RNAi is unproven). Conversely, the bears may be underestimating the durability of siRNA's mechanistic edge as long-term ATTR-CM outcome data accrues. The honest read: consensus is priced for the bull and the stock already sits well below its own targets — meaning the market is quietly hedging the durability question even as analysts stay bullish.
Dismantling the bull case:
Not a stock anymore — a closed M&A. Lilly bought the whole company for $10.50/share cash (closed Jul 2025); the only live "position" is the $3.00 CVR, which pays only if VERVE-102 reaches a US Phase 3 dosing — market priced ~21% odds, a coin-flip dressed as a lottery ticket.
A one-asset, binary bet on a genuinely best-in-class disease-modifying Dravet drug whose pivotal read-out (mid-2027) lands inside a fully-funded runway — own it for the read-out, but size it like the 50/50 single-trial event it is.
A David Liu-pedigreed prime-editing pioneer cornered into a defensive crouch — 25% RIF, founder-CEO out, lead CGD asset demoted to a partnering candidate, going-concern doubt at ~14 months of cash, and an existential Beam IP arbitration over one of its two surviving lead programs. At a ~$537M cap it is a deeply discounted binary call option on 2027 first-in-human liver data; bullish only for risk-seeking capital that can survive a dilution-or-bust 2026.