Insider Trading April 13, 2026 05:25 PM

RA Capital Increases Stake in Adicet Bio with $1.6M Purchase

Series of purchases over three trading days coincided with ACET trading near its 52-week low

By Sofia Navarro ACET
RA Capital Increases Stake in Adicet Bio with $1.6M Purchase
ACET

RA Capital Management and related entities acquired a total of $1.6 million of Adicet Bio (NASDAQ: ACET) common stock across three transactions executed February 18-20, 2026. The buys, reported under transaction code "P," totaled 223,596 shares and occurred as the stock traded close to its 52-week low. Recent analyst activity shows mixed adjustments to price targets but continued Buy ratings amid clinical trial developments.

Key Points

  • RA Capital Management and related entities bought a total of 223,596 shares of Adicet Bio common stock across February 18-20, 2026, totaling $1.6 million.
  • The purchases occurred as ACET traded near its 52-week low of $6.01 and at $6.35 after a 57% decline over six months; InvestingPro analysis cited the stock as appearing undervalued based on Fair Value metrics.
  • Analysts have adjusted price targets materially while maintaining Buy ratings, highlighting both valuation debate and ongoing clinical-trial developments for Adicet's prula-cel and prulacabtagene leucel programs.

Overview

RA Capital Management, L.P., together with affiliated entities, disclosed purchases of common shares of Adicet Bio, Inc. (NASDAQ: ACET) across a set of transactions labeled with transaction code "P." The cumulative value of these acquisitions was $1.6 million.


Transaction details

The purchases took place over three consecutive trading days - February 18, February 19, and February 20, 2026. The reported share counts, weighted average prices and observed price ranges for each day are as follows:

Date Shares Weighted Average Price Price Range
February 18, 2026 74,577 $7.04 $6.89 - $7.20
February 19, 2026 74,268 $7.21 $6.89 - $7.48
February 20, 2026 74,751 $7.27 $7.05 - $7.58

In total, these transactions equal 223,596 shares and the aggregate value of purchases is reported as $1.6 million. All buys were identified with transaction code "P."


Price context and valuation note

The share activity was reported as Adicet Bio traded near its 52-week low of $6.01. At the time of the reporting, the stock was at $6.35, reflecting a 57% decline over the prior six months. An InvestingPro analysis cited in the reporting noted that, based on Fair Value metrics, ACET appears undervalued - a finding offered as a possible explanation for the buying activity by RA Capital and related parties.


Beneficial ownership and filers

The transactions were disclosed by several related parties: RA Capital Management, L.P., RA Capital Healthcare Fund LP, Peter Kolchinsky, and Rajeev M. Shah. The filing indicates these parties may be deemed to have beneficial ownership of the acquired shares.


Analyst activity

Analyst coverage of Adicet Bio has seen multiple recent adjustments to price targets while maintaining Buy ratings. H.C. Wainwright at one point lowered its target to $27 from $50, citing a higher discount rate and increased long-term operating expenses, though it kept a Buy rating and noted Adicet's fourth-quarter 2025 net loss of $2.94 per share was better than its prior estimate. Separately, Guggenheim reduced its target to $100 from $128, pointing to valuation concerns, yet it too retained a Buy rating and highlighted strong enrollment momentum in Adicet's Phase 1 trial for prula-cel across multiple autoimmune indications. H.C. Wainwright subsequently revised its target upward to $50 from $9, expressing optimism about upcoming catalysts for Adicet's CD20-targeted allogeneic gamma delta CAR-T therapy, prulacabtagene leucel.


Takeaway

The disclosed purchases by RA Capital and affiliated filers represent a concentrated buy over a short window while ACET traded near multi-month lows. Concurrent analyst attention, including several material price-target adjustments and continued Buy recommendations, underscores active market scrutiny of Adicet Bio's clinical progress and financial outlook.

Risks

  • Significant recent price volatility - ACET has fallen 57% over six months and is trading near its 52-week low, indicating elevated market and share-price risk in the biotech sector.
  • Analyst target revisions show uncertainty in valuation and financial projections - multiple price-target adjustments were reported, reflecting changing assumptions about discount rates and long-term operating expenses.
  • Clinical and catalyst uncertainty - while analysts cite enrollment momentum and potential upcoming catalysts for Adicet's therapies, the timing and outcome of these clinical developments remain uncertain.

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