Latest Twin Securities, Inc. Stock Portfolio

$206Million | No. of Holdings #16

Twin Securities, Inc. Performance

2026 Q1-1.22%

YTD-1.22%

2025-0.80%

About Twin Securities, Inc. and 13F Hedge Fund Stock Holdings

On 2026-05-15, the fund reported it's updated stock portfolio. In the 13F Holdings report, Twin Securities, Inc. reported an equity portfolio of $206.1 Millions as of 31 Mar, 2026. <br><br> The top stock holdings of Twin Securities, Inc. are EA, WBD, CWAN. The fund has invested 44.2% of it's portfolio in ELECTRONIC ARTS INC and 17.3% of portfolio in WARNER BROS DISCOVERY INC. <br><br> The fund managers got completely rid off CYBERARK SOFTWARE LTD (CYBR), EXACT SCIENCES CORP (EXAS) and AVIDITY BIOSCIENCES INC (RNA) stocks. They significantly reduced their stock positions in SURGERY PARTNERS INC (SGRY). Twin Securities, Inc. opened new stock positions in ARCELLX INC (ACLX), TERNS PHARMACEUTICALS INC (TERN) and APELLIS PHARMACEUTICALS INC (APLS). The fund showed a lot of confidence in some stocks as they added substantially to CLEARWATER ANALYTICS HLDGS I (CWAN), HOLOGIC INC (HOLX) and ELECTRONIC ARTS INC (EA).

Twin Securities, Inc. Equity Portfolio Value

Last Reported on: 15 May, 2026

$206Million

as of May 15, 2026

Twin Securities, Inc. Annual Return Estimates Vs S&P 500

Our best estimate is that Twin Securities, Inc. made a return of -1.22% in the last quarter. In trailing 12 months, it's portfolio return was -3.19%.

Performance
S&P 500

New Buys

Ticker	$ Bought
arcellx inc	6,198,210
terns pharmaceuticals inc	6,113,310
apellis pharmaceuticals inc	5,126,910
revolution medicines inc	3,753,170
onestream inc	1,448,930
take-two interactive softwar	1,283,750
day one biopharmaceuticals i	678,061
atrium therapeutics inc	667,337

New stocks bought by Twin Securities, Inc.

Additions

Ticker	% Inc.
clearwater analytics hldgs i	2,260
hologic inc	111
electronic arts inc	86.36
kenvue inc	18.48
warner bros discovery inc	16.59
manchester utd plc new	2.4

Additions to existing portfolio by Twin Securities, Inc.

Reductions

Ticker	% Reduced
surgery partners inc	-94.11

Twin Securities, Inc. reduced stake in above stock

Sold off

Ticker	$ Sold
confluent inc	-15,285,900
exact sciences corp	-49,113,300
avidity biosciences inc	-26,337,800
cyberark software ltd	-59,390,700
dayforce inc	-2,713,910
norfolk southn corp	-7,275,740
mineralys therapeutics inc	-607,386
cidara therapeutics inc	-1,082,360

Twin Securities, Inc. got rid off the above stocks

Sector Distribution

Twin Securities, Inc. has about 63.3% of it's holdings in Communication Services sector.

Communication Services
Healthcare
Technology
Others

Sector	%
Communication Services	63.3
Healthcare	17.6
Technology	13.6
Others	5.5

Market Cap. Distribution

Twin Securities, Inc. has about 71.9% of it's portfolio invested in the large-cap and mega-cap stocks.

LARGE-CAP
MID-CAP
UNALLOCATED

Category	%
LARGE-CAP	71.9
MID-CAP	22.2
UNALLOCATED	5.5

Stocks belong to which Index?

About 78.3% of the stocks held by Twin Securities, Inc. either belong to S&P 500 or RUSSELL 2000 index.

S&P 500
Others
RUSSELL 2000

Index	%
S&P 500	70
Others	21.7
RUSSELL 2000	8.3

Top 5 Winners (%)		%
MANU	manchester utd plc new	5.6 %
HOLX	hologic inc	1.1 %

Top 5 Winners ($)		$
HOLX	hologic inc	0.1 M
MANU	manchester utd plc new	0.0 M

Top 5 Losers (%)		%
	tic solutions inc	-34.9 %
SGRY	surgery partners inc	-12.1 %
WBD	warner bros discovery inc	-4.4 %
CWAN	clearwater analytics hldgs i	-1.0 %
EA	electronic arts inc	-0.2 %

Top 5 Losers ($)		$
WBD	warner bros discovery inc	-1.6 M
SGRY	surgery partners inc	-0.3 M
CWAN	clearwater analytics hldgs i	-0.3 M
	tic solutions inc	-0.3 M
EA	electronic arts inc	-0.2 M

Twin Securities, Inc. Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of Twin Securities, Inc.

Twin Securities, Inc. has 16 stocks in it's portfolio. About 96.5% of the portfolio is in top 10 stocks. WBD proved to be the most loss making stock for the portfolio. HOLX was the most profitable stock for Twin Securities, Inc. last quarter.

$202.31MTotal Value

24.00Positions

15 May, 2026Last Reported

Current holdings of Current Stock Holdings of Twin Securities, Inc., last reported on 15 May, 2026. Select a row with a linked ticker to view its historical trend.
Holdingsorted ascending	% Portfolio	Shares Held	$ Value	% Change
ACLX Arcellx Inc Arcellx IncACLX Twin Securities, Inc.'s holding in Arcellx Inc over time	3.01%	53,982	$6.20M 3.01%	new position

APLS Apellis Pharmaceuticals Inc Apellis Pharmaceuticals IncAPLS Twin Securities, Inc.'s holding in Apellis Pharmaceuticals Inc over time	2.49%	127,440	$5.13M 2.49%	new position

CDAY Dayforce Inc Dayforce IncCDAY Twin Securities, Inc.'s holding in Dayforce Inc over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

CDTX Cidara Therapeutics Inc Cidara Therapeutics IncCDTX Twin Securities, Inc.'s holding in Cidara Therapeutics Inc over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

CFLT Confluent Inc Confluent IncCFLT Twin Securities, Inc.'s holding in Confluent Inc over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

CWAN Clearwater Analytics Hldgs I Clearwater Analytics Hldgs ICWAN Twin Securities, Inc.'s holding in Clearwater Analytics Hldgs I over time	13.36%	1,164,090	$27.53M 13.36%	increased 2260.57 percentadded

CYBR Cyberark Software Ltd Cyberark Software Ltd CYBR Twin Securities, Inc.'s holding in Cyberark Software Ltd over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

DAWN Day One Biopharmaceuticals I Day One Biopharmaceuticals IDAWN Twin Securities, Inc.'s holding in Day One Biopharmaceuticals I over time	0.33%	31,626	$678.1K 0.33%	new position

EA Electronic Arts Inc Electronic Arts IncEA Twin Securities, Inc.'s holding in Electronic Arts Inc over time	44.21%	446,948	$91.12M 44.21%	increased 86.36 percentadded

EXAS Exact Sciences Corp Exact Sciences CorpEXAS Twin Securities, Inc.'s holding in Exact Sciences Corp over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

HOLX Hologic Inc Hologic IncHOLX Twin Securities, Inc.'s holding in Hologic Inc over time	6.57%	179,036	$13.53M 6.57%	increased 111.84 percentadded

MANU Manchester Utd Plc New Manchester Utd Plc New MANU Twin Securities, Inc.'s holding in Manchester Utd Plc New over time	0.12%	14,920	$251.0K 0.12%	increased 2.4 percentadded

NSC Norfolk Southn Corp Norfolk Southn CorpNSC Twin Securities, Inc.'s holding in Norfolk Southn Corp over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

RNA Avidity Biosciences Inc Avidity Biosciences IncRNA Twin Securities, Inc.'s holding in Avidity Biosciences Inc over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

RVMD Revolution Medicines Inc Revolution Medicines IncRVMD Twin Securities, Inc.'s holding in Revolution Medicines Inc over time	1.82%	38,593	$3.75M 1.82%	new position

SGRY Surgery Partners Inc Surgery Partners IncSGRY Twin Securities, Inc.'s holding in Surgery Partners Inc over time	0.06%	10,025	$119.5K 0.06%	decreased 94.11 percentreduced

TERN Terns Pharmaceuticals Inc Terns Pharmaceuticals IncTERN Twin Securities, Inc.'s holding in Terns Pharmaceuticals Inc over time	2.97%	115,958	$6.11M 2.97%	new position

TTWO Take-Two Interactive Softwar Take-Two Interactive SoftwarTTWO Twin Securities, Inc.'s holding in Take-Two Interactive Softwar over time	0.62%	6,500	$1.28M 0.62%	new position

WBD Warner Bros Discovery Inc Warner Bros Discovery IncWBD Twin Securities, Inc.'s holding in Warner Bros Discovery Inc over time	17.32%	1,299,920	$35.70M 17.32%	increased 16.59 percentadded

Com Kenvue Inc Kenvue Inc Twin Securities, Inc.'s holding in Kenvue Inc over time	4.02%	480,517	$8.28M 4.02%	increased 18.48 percentadded