Northern Trust Corp reports 36.49% increase in ownership of ACET / Adicet Bio, Inc.

Adicet Bio, Inc.

US ˙ NasdaqCM

Security	ACET / Adicet Bio, Inc.
Institution	Northern Trust Corp
Latest Disclosed Ownership	19,200 shares
Latest Disclosed Value	$ 130,752

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 19,200 shares of Adicet Bio, Inc. (US:ACET) valued at $130,752 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 14,067 shares of Adicet Bio, Inc.. This represents a change in shares of 36.49% during the quarter. The current value of the position is $155,712 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-14	2026-03-31	13F	ADICET BIO	COM NEW	007002207	19,200	5,133	36.49	131	10.17	0.0000
2026-02-17	2025-12-31	13F	ADICET BIO	COM NEW	007002207	14,067	14,067		118		0.0000
2020-11-16	2020-09-30	13F	RESTORBIO	COM	76133L103	0	-30,139	-100.00	0	-100.00
2020-08-14	2020-06-30	13F	RESTORBIO	COM	76133L103	30,139	-155,013	-83.72	65	-65.97	0.0000
2020-05-14	2020-03-31	13F	RESTORBIO	COM	76133L103	185,152	9,680	5.52	191	-27.10	0.0001
2020-02-14	2019-12-31	13F	RESTORBIO	COM	76133L103	175,472	1,736	1.00	262	-82.94	0.0001
2019-11-13	2019-09-30	13F	RESTORBIO	COM	76133L103	173,736	65,606	60.67	1,536	39.26	0.0004
2019-08-13	2019-06-30	13F	RESTORBIO	COM	76133L103	108,130	29,128	36.87	1,103	104.64	0.0003
2019-05-13	2019-03-31	13F	RESTORBIO	COM	76133L103	79,002	-464	-0.58	539	-21.31	0.0001
2019-02-12	2018-12-31	13F	RESTORBIO	COM	76133L103	79,466	-3,292	-3.98	685	-45.33	0.0002
2018-11-14	2018-09-30	13F	RESTORBIO	COM	76133L103	82,758	17,853	27.51	1,253	110.94	0.0003
2018-09-18	2018-06-30	13F/A-1	RESTORBIO	COM	76133L103	64,905	-2,368	-3.52	594	-7.91	0.0002
2018-08-14	2018-06-30	13F	RESTORBIO	COM	76133L103	64,905	-2,368		594
2018-05-09	2018-03-31	13F	RESTORBIO	COM	76133L103	67,273	67,273		645		0.0002

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.