NasdaqHealth CarePharmaceutical PreparationsBOSTON, MA

Adicet Bio, Inc. ACET

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Estimated market cap $26.03M9.36M shares, shares as of Nov 3, 2026CIK 1720580

Insider trades, 12 mo

3 buys · 4 sells

$674.8K sold, open market

Congress trades, 24 mo

—

No disclosed trades

13F holders, Q3 2026

26.7% of shares · 10 added

13F holders

…

Lobbying, 12 mo

—

No lobbying filings

Federal contracts, 12 mo

—

None matched

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Latest 10-Q

Q3 2026

What changed in Adicet Bio, Inc.'s latest quarterly report, compared with the one before.

Filed Nov 5, 2026 · Quarter ended Sep 30, 2026

Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: management's discussion, risk factors, legal proceedings and controls and procedures.

Read the 10-Q on sec.gov ↗Filing index ↗

Latest 10-Q

What changed in Adicet Bio, Inc.'s latest quarterly report, compared with the one before.

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Insider trades

7 in 12 mo

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No open-market insider trades reported since Apr 8, 2026. Insiders have two business days to file.

Recent insider trades

RA Capital Healthcare Fund LP 10% owner	Feb 20 Form 4 ↗	Buy	+$543.4K 74,751 sh @ $7.27	-70.5%
RA Capital Healthcare Fund LP 10% owner	Feb 19 Form 4 ↗	Buy	+$535.5K 74,268 sh @ $7.21	-72.8%
RA Capital Healthcare Fund LP 10% owner	Feb 18 Form 4 ↗	Buy	+$525.0K 74,577 sh @ $7.04	-70.5%
OrbiMed Advisors Israel II Ltd 10% owner	Apr 8 Form 4 ↗	Sale	−$263.5K 40,416 sh @ $6.52	-69.1%
OrbiMed Advisors Israel II Ltd 10% owner	Apr 8 Form 4 ↗	Sale	−$204.6K 32,523 sh @ $6.29	-69.1%

All ACET insider trades →Planned sales (Form 144): see notices

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

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13F holders

2.50M shares

30 funds report ACET. Values checked against market prices.

Funds own 65% of shares (Q2 2026)

56 funds hold the stock.

Q3 2026: 27% · 5,560 of ~8,900 funds reported so far

Q4 202570%
Q1 202666%
Q2 202665%
Q3 2026 (so far)27%

Q3 2026. 3 new, 10 added to, 10 trimmed, 29 exited since Q2 2026.

Top 13F holders
#
1	Vanguard Capital Management LLC 13F ↗	366,216	$2.6M	+6.7%
2	Franklin Templeton Inc 13F ↗	724,138	$2.2M	+15.6%
3	Renaissance Technologies LLC 13F ↗	214,841	$1.5M	-19.2%
4	Stonepine Capital Management, LLC 13F ↗	188,201	$1.3M	-23.3%
5	Carlyle Group Inc. 13F ↗	184,295	$1.3M	unchanged
6	Acadian Asset Management LLC 13F ↗	170,832	$1.2M	+36.8%
7	UBS Group AG 13F ↗	118,197	$843.9K	+296.4%
8	Geode Capital Management, LLC 13F ↗	84,847	$606.2K	-11.3%
9	Marshall Wace, LLP 13F ↗	69,235	$494.3K	-12.9%
10	BlackRock, Inc. 13F ↗	61,024	$435.7K	-1.8%

One of these funds reports its values in thousands of dollars; its figures are shown in dollars.

Download CSV Every fund that holds ACET, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

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Lobbying

What Adicet Bio, Inc. and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What Adicet Bio, Inc. and its lobbying firms report each quarter.

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H-1B labor applications at Adicet Bio, Inc.

0 certified in 12 mo

Labor condition applications decided by the Department of Labor, matched to Adicet Bio, Inc. by employer name. An application is not a hire.

Median yearly wage offered, full-time certified applications, Jul 2025 to Jun 2026: —

H-1B labor applications decided at Adicet Bio, Inc. by quarter
Quarter	Certified	All decided	Workers asked for
2024 Q3	0	0	0
2024 Q4	0	0	0
2025 Q1	0	0	0
2025 Q2	2	2	2
2025 Q3	0	0	0
2025 Q4	0	1	0
2026 Q1	0	0	0
2026 Q2	0	0	0

All ACET applications

We match the employer's name to a public company automatically, including a reviewed list of subsidiaries. A subsidiary can be missed and a similar name can be matched wrongly. The files carry no worker names.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report

Funds holding the stock by quarter

Q4 2025	48	—	6.70M	$56.4M
Q1 2026	48	0	6.35M	$43.2M
Q2 2026	56	+8	6.11M	$52.8M
Q3 2026	30	-26	2.50M	$15.0M

Each point is a quarter-end, from Q4 2025 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (007002207). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q4 2025) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

Ownership stakes10 in 12 mo 8-K events5 in 90 days PatentsNone on record Short interestFINRA · updated Oct 15 Planned insider salesForm 144 · 3 in 12 mo Executive pay3 fiscal years Wikipedia attentionNone on record SEC enforcementNone on record IPO history1 registration Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: Adicet Bio, Inc.
Address: 131 DARTMOUTH STREET, 3RD FLOOR, BOSTON, MA 02116
Phone: 617-482-2333
Fiscal year ends: Dec 26
Filer category: Non-accelerated filer, smaller reporting company
Incorporated in: DE
Listed as: ACET (Nasdaq)
Former names: resTORbio, Inc. (until 2020)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

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$2.78−$0.15 (−5.12%) Nov 13 close

1M3M1Y

Oct 13, 2026Low $2.78 · High $5.14Nov 13, 2026

Aug 13, 2026Low $2.78 · High $9.73Nov 13, 2026

Nov 13, 2025Low $2.78 · High $10.61Nov 13, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. The stock split 1-for-16 on Dec 30, 2025; earlier prices are shown divided by the split ratio. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.