$AGIO

$36.85 -$0.15 (0.41%) Close

$AGIO Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 59.7M shares outstanding

Who owns AGIO?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 58.1%

BlackRock, Inc. 10.8% · Farallon Capital Management, L.L.C. 9.9%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

237

+4 vs last qtr

Net shares bought

+1.6M

by institutions in Q2 2026

New / sold out

38 / 34

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

ADAR1 Capital Management, LLC +1.1M
UBS Group AG +853.3K

Biggest sellers in Q2 2026

T. Rowe Price Investment Management, Inc. SOLD OUT −1.5M
Susquehanna International Group, LLP SOLD OUT −1.3M

Who is planning to sell?

Notices of proposed sale, last 12 months

$4.78M

24 notices from 7 people

Shares covered

152.5K

0.26% of the company

Arranged in advance

98%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Goff Brian Officer 10b5-1 $1.71M
Sarah Gheuens Officer $1.39M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2019–FY2025

−3.4%

−0.57% a year

Each share's claim on the business

+3.5%

grew without buying or selling a share

Spent on buybacks vs paid in stock

— vs $363M

over 7 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years61% 3–5 years7% 1–3 years10% Under 1 year22%

Quarterly turnover

18.8%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting AGIO on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	6.5M	10.81%	+701.0K (+12.2%)	≤2021	0.0%
Shares held by quarter Peak holding6.5M (Q2'26) Change over 8 quarters+1.4M Share of the company10.810% BlackRock, Inc.'s full portfolio →
FC Farallon Capital Management, L.L.C.	5.9M	9.91%	+233.4K (+4.1%)	≤2021	1.0%
Shares held by quarter Peak holding5.9M (Q2'26) Change over 8 quarters+256.5K Share of the company9.910% Farallon Capital Management, L.L.C.'s full portfolio →

BlackRock, Inc.

6.5M

% of company

10.81%

Change vs last qtr

+701.0K (+12.2%)

Held since

≤2021

Farallon Capital Management, L.L.C.

5.9M

% of company

9.91%

Change vs last qtr

+233.4K (+4.1%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Agios Pharmaceuticals, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AGIO on Form N-PORT; together they hold 32.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
SS State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR Series Trust	$74.4M	2.0M	3.36%	0.69%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$70.1M	1.9M	3.16%	0.00%	June 30, 2026

State Street(R) SPDR(R) S&P(R) Biotech ETF

SPDR Series Trust

Position value

$74.4M

% of company

3.36%

% of the fund

0.69%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$70.1M

% of company

3.16%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Agios Pharmaceuticals, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
GB Goff Brian Insider	184.5K	0.31%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.310% Goff Brian's insider activity →
FJ Fouse Jacqualyn A Insider	154.2K	0.26%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.260% Fouse Jacqualyn A's insider activity →

Goff Brian

Insider

184.5K

% of company

0.31%

Change vs last qtr

—

Held since

—

Fouse Jacqualyn A

Insider

154.2K

% of company

0.26%

Change vs last qtr

—

Held since

—

14 more holders behind a free account

See every insider and 5%+ holder of Agios Pharmaceuticals, Inc..

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