$ATII

$9.81 +$2.64 (36.82%) Close

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

Ownership

13F as of Q2 2026 · 29.6M shares outstanding

Who owns ATII?

By type of holder

Institutions 59.9% Insiders 0.0% Everyone else 40.1%

Concentration Top 10 holders own 31.7%

TENOR CAPITAL MANAGEMENT Co., L.P. 4.6% · Fort Baker Capital Management LP 4.5%

Institutional ownership

59.9%

-15.5 pts vs last qtr

Institutional holders

-4 vs last qtr

Net shares bought

−4.6M

by institutions in Q2 2026

New / sold out

12 / 16

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Fort Baker Capital Management LP NEW +1.3M
Decagon Asset Management LLP NEW +937.8K

Biggest sellers in Q2 2026

Westchester Capital Management, LLC SOLD OUT −907.1K
Glazer Capital, LLC −699.9K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Forge Nano Holdings, Inc in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Forge Nano Holdings, Inc.

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years74% Under 1 year26%

Quarterly turnover

31.1%

of institutional shares changed hands

Top 10 managers, median time held

1.3 years

Super Investors

Investment managers reporting ATII on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
TC TENOR CAPITAL MANAGEMENT Co., L.P.	1.4M	4.62%	−132.2K (−8.8%)	2025	0.2%
Shares held by quarter Peak holding1.5M (Q1'25) Change over 8 quarters+1.4M Share of the company4.620% TENOR CAPITAL MANAGEMENT Co., L.P.'s full portfolio →
FB Fort Baker Capital Management LP	1.3M	4.50%	NEW	Q2 '26	1.1%
Shares held by quarter Peak holding1.3M (Q2'26) Change over 8 quarters+1.3M Share of the company4.500% Fort Baker Capital Management LP's full portfolio →

TENOR CAPITAL MANAGEMENT Co., L.P.

1.4M

% of company

4.62%

Change vs last qtr

−132.2K (−8.8%)

Held since

2025

Fort Baker Capital Management LP

1.3M

% of company

4.50%

Change vs last qtr

NEW

Held since

Q2 '26

28 more super investors behind a free account

See every manager holding Forge Nano Holdings, Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ATII on Form N-PORT; together they hold 2.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
DM Destinations Multi Strategy Alternatives Fund Brinker Capital Destinations Trust	$4.28M	406.5K	1.37%	0.80%	February 28, 2026
DE Driehaus Event Driven Fund Driehaus Mutual Funds	$1.73M	166.6K	0.56%	1.94%	December 31, 2025

Destinations Multi Strategy Alternatives Fund

Brinker Capital Destinations Trust

Position value

$4.28M

% of company

1.37%

% of the fund

0.80%

As of

February 28, 2026

Driehaus Event Driven Fund

Driehaus Mutual Funds

Position value

$1.73M

% of company

0.56%

% of the fund

1.94%

As of

December 31, 2025

3 more funds behind a free account

See every fund holding Forge Nano Holdings, Inc and how much of the fund the position is.

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