ACHILLES THERAPEUTICS PL-ADR (ACHL) Top Institutional Shareholders
ACHILLES THERAPEUTICS PL-ADR (ACHL) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $53,336 in ACHL holdings during the latest filing period.
Trium Capital Llp is currently the largest disclosed institutional shareholder of ACHL tracked by InsiderSet, reporting ownership valued at approximately $45,514 in its March 31, 2026 SEC Form 13F filing.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed ACHL value among the investors covered in this analysis. Major shareholders include Trium Capital Llp, Rhumbline Advisers, Gamma Investing Llc, and several other long-term asset managers with concentrated positions in ACHILLES THERAPEUTICS PL-ADR (ACHL).
This page ranks the largest institutional ACHL shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
3
Total Reported Value
$53,336
Largest Holder
Trium Capital Llp
Largest Position
$45,514
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
4
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Trium Capital Llp | 0.03% | 30,753 | $45,514 | — | — | — | |
| Rhumbline Advisers | 0.00% | 4,480 | $6,629 | — | — | — | |
| Gamma Investing Llc | 0.00% | 806 | $1,193 | — | — | — |
Frequently asked questions about ACHL
Who owns the most ACHL stock?
The largest holders of ACHL are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ACHILLES THERAPEUTICS PL-ADR (ACHL).
Is ACHL widely held by superinvestors?
Many widely followed stocks like ACHL appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ACHL is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.