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IMOS

ChipMOS TECHNOLOGIES

72 hedge funds and large institutions have $83.4M invested in ChipMOS TECHNOLOGIES in 2026 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 21 increasing their positions, 14 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

320% more first-time investments, than exits

New positions opened: 21 | Existing positions closed: 5

50% more repeat investments, than reductions

Existing positions increased: 21 | Existing positions reduced: 14

33% more capital invested

Capital invested by funds: $62.7M → $83.4M (+$20.8M)

26% more funds holding

Funds holding: 5772 (+15)

0.62% more ownership

Funds ownership: 6%6.62% (+0.62%)

100% less call options, than puts

Call options by funds: $0 | Put options by funds: $1.65M

Holders
72
Holders Change
+15
Holders Change %
+26.32%
% of All Funds
0.89%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
21
Increased
21
Reduced
14
Closed
5
Calls
Puts
$1.65M
Net Calls
-$1.65M
Net Calls Change
-$4.67M
Name Holding Trade Value Shares
Change
Change in
Stake
Renaissance Technologies
1
Renaissance Technologies
New York
$40M -$272K -7,200 -0.6%
BlackRock
2
BlackRock
New York
$9.1M +$364K +9,646 +4%
Acadian Asset Management
3
Acadian Asset Management
Massachusetts
$8.06M -$1.05M -27,731 -11%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$3.3M +$12.6K +335 +0.4%
OSAM
5
O'Shaughnessy Asset Management
Connecticut
$2.85M +$3.01M +79,723 New
VPIM
6
Vanguard Personalized Indexing Management
California
$2.46M -$176K -4,670 -6%
Envestnet Asset Management
7
Envestnet Asset Management
Illinois
$1.96M +$2.07M +54,739 New
Creative Planning
8
Creative Planning
Kansas
$1.6M +$111K +2,953 +7%
RG
9
Renaissance Group
Kentucky
$1.26M -$40.1K -1,064 -3%
Marshall Wace
10
Marshall Wace
United Kingdom
$1.17M +$1.23M +32,603 New
Two Sigma Investments
11
Two Sigma Investments
New York
$1.08M +$1.14M +30,221 New
Citadel Advisors
12
Citadel Advisors
Florida
$890K +$324K +8,594 +53%
RhumbLine Advisers
13
RhumbLine Advisers
Massachusetts
$873K +$119K +3,146 +15%
BP
14
Ballentine Partners
Massachusetts
$819K +$51.1K +1,355 +6%
PAM
15
Parvin Asset Management
South Dakota
$779K -$17.9K -475 -2%
S
16
SignatureFD
Georgia
$748K -$12.8K -340 -2%
QC
17
Quadrature Capital
United Kingdom
$713K +$752K +19,933 New
CG
18
Caprock Group
Idaho
$587K +$619K +16,397 New
QCG
19
Quadrant Capital Group
Ohio
$486K +$17.2K +457 +3%
LPL Financial
20
LPL Financial
California
$482K +$91K +2,411 +22%
Bank of America
21
Bank of America
North Carolina
$462K -$29.2K -774 -6%
Millennium Management
22
Millennium Management
New York
$384K +$405K +10,729 New
Connor, Clark & Lunn Investment Management (CC&L)
23
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$363K +$51.1K +1,355 +15%
LA
24
LVW Advisors
New York
$339K +$358K +9,488 New
Jane Street
25
Jane Street
New York
$326K +$344K +9,113 New

IMOS Hedge Fund Activity: Q1 2026 in Review

72 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in ChipMOS TECHNOLOGIES (IMOS) for Q1 2026, worth a combined $83.4M — up 33% from $62.7M a quarter earlier.

Buyers outnumbered sellers: 21 funds opened new IMOS positions and 5 closed out — a net gain of 16 holders — while 21 added to existing stakes and 14 trimmed.

The largest buyer was O'Shaughnessy Asset Management, opening a new position worth an estimated $3.01M. The largest seller was Acadian Asset Management, cutting an estimated $1.05M.

  • 72 institutional investors held ChipMOS TECHNOLOGIES (IMOS) as of Q1 2026, up from 57 in Q4 2025.
  • Funds reported $83.4M of ChipMOS TECHNOLOGIES stock for Q1 2026, up 33% quarter-over-quarter.
  • 21 funds opened new ChipMOS TECHNOLOGIES positions in Q1 2026 and 5 closed out, a net change of +16 holders.
  • The largest ChipMOS TECHNOLOGIES buyer in Q1 2026 was O'Shaughnessy Asset Management, an estimated $3.01M added.
  • The largest ChipMOS TECHNOLOGIES seller in Q1 2026 was Acadian Asset Management, an estimated $1.05M sold.

Based on aggregated 13F filings for Q1 2026.