Twin Securities, Inc.

All Holdings — 2025 Q4

AI Portfolio Summary
In 2025 Q4, Twin Securities, Inc. maintained a portfolio of 26 distinct positions. The most significant new addition to the portfolio was EXACT SCIENCES CORP, which now represents 18.77% of the total fund value. They heavily accumulated shares in CYBERARK SOFTWARE LT, increasing their position by 184.4%. Conversely, Twin Securities, Inc. completely exited their position in VERONA PHARMA PLC.
PCA Score Concentration Risk
Risk ENB
Total Positions
26
Quarter
2025 Q4
Top Holding
CYBR (22.7%)
Top 10 Concentration
97.3%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
1-25 of 26
Stock History Sector / Type Port % Prev % Rank / Prev Conviction Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
CYBR
CYBERARK SOFTWA...
Technology 22.70% 11.24% #1 4
Prev: #5
10.0 86,332 184.4%
P
S
133,145 $59,390,659
$459.10 -3.8%
$446.06 -1.0%
2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
EXAS
EXACT SCIENCES ...
Healthcare 18.77% #2
Prev: #—
9.5 483,589 no change
NEW
483,589 $49,113,299
$101.56 +0.0%
$101.56 +0.0%
2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
EA
ELECTRONIC ARTS...
Communication Services 18.73% #3
Prev: #—
9.5 239,836 no change
NEW
239,836 $49,005,690
$200.96 +1.6%
$204.14 +0.0%
2023 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
WBD
WARNER BROS DIS...
Communication Services 12.28% 1.24% #4 5
Prev: #9
7.2 987,272 773.0%
P
S
1,114,989 $32,133,983 2022 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
RNA
AVIDITY BIOSCIE...
Healthcare 10.07% #5
Prev: #—
6.0 365,144 no change
NEW
365,144 $26,337,837 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
CFLT
CONFLUENT INC
Technology 5.84% #6
Prev: #—
4.3 505,486 no change
NEW
505,486 $15,285,897 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
NSC
NORFOLK SOUTHN ...
Industrials 2.78% #7
Prev: #—
3.1 25,200 no change
NEW
25,200 $7,275,744 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
KVUE
KENVUE INC
Consumer Defensive 2.67% #8
Prev: #—
3.1 405,583 no change
NEW
405,583 $6,996,307 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
HOLX
HOLOGIC INC
Healthcare 2.41% #9
Prev: #—
3.0 84,513 no change
NEW
84,513 $6,295,373 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
DAY
DAYFORCE INC
Technology 1.04% #10
Prev: #—
2.4 39,241 no change
NEW
39,241 $2,713,908 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
SGRY
SURGERY PARTNER...
Healthcare 1.01% 1.54% #11 4
Prev: #7
2.5 27,386 19.2%
P
S
170,258 $2,630,486 2025 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
CWAN
CLEARWATER ANAL...
Technology 0.45% #12
Prev: #—
2.2 49,314 no change
NEW
49,314 $1,189,454 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
CDTX
CIDARA THERAPEU...
Healthcare 0.41% #13
Prev: #—
2.2 4,900 no change
NEW
4,900 $1,082,361 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
TIC
TIC SOLUTIONS I...
Industrials 0.30% 0.81% #14 4
Prev: #10
0.2 -45,717 -37.2%
P
S
77,339 $781,897 2025 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
MLYS
MINERALYS THERA...
Healthcare 0.23% #15
Prev: #—
2.1 16,737 no change
NEW
16,737 $607,386 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
WBD
WARNER BROS DIS...
CALL
CALL Option 0.22% 0.56% #16 3
Prev: #13
0.3 -37,900 -65.3%
P
S
20,100 $579,282 2022 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
MANU
MANCHESTER UTD ...
Communication Services 0.09% 0.11% #17 2
Prev: #15
0.0 -193 -1.3%
P
S
14,570 $231,954 2024 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
VRNA
VERONA PHARMA P...
Unknown 0.00% 26.58%
Sold All 😨
(Was: #1)
0.3 -501,113 -100.0%
CLOSED
$— 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
K
KELLANOVA
Consumer Defensive 0.00% 22.57%
Sold All 😨
(Was: #2)
0.3 -553,655 -100.0%
CLOSED
$— 2024 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
MRUS
MERUS N V
Healthcare 0.00% 14.52%
Sold All 😨
(Was: #3)
0.3 -310,263 -100.0%
CLOSED
$— 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
COOP
MR COOPER GROUP...
Unknown 0.00% 12.82%
Sold All 😨
(Was: #4)
0.3 -122,358 -100.0%
CLOSED
$— 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
SPR
SPIRIT AEROSYST...
Industrials 0.00% 4.96%
Sold All 😨
(Was: #6)
0.3 -258,381 -100.0%
CLOSED
$— 2024 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
WNS
WNS HLDGS LTD
Unknown 0.00% 1.24%
Sold All 😨
(Was: #8)
0.3 -32,814 -100.0%
CLOSED
$— 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
BA
BOEING CO
CALL
CALL Option 0.00% 0.79%
Sold All 😨
(Was: #11)
0.3 -7,400 -100.0%
CLOSED
$— 2025 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
TRML
TOURMALINE BIO ...
Unknown 0.00% 0.79%
Sold All 😨
(Was: #12)
0.3 -33,301 -100.0%
CLOSED
$— 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
PLYM
PLYMOUTH INDL R...
Real Estate 0.00% 0.22%
Sold All 😨
(Was: #14)
0.3 -20,146 -100.0%
CLOSED
$— 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
Showing 1-25 of 26 holdings

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