Twin Securities, Inc.
13F Reported Value
ⓘ$206.1M
incl. option notional
Equity Holdings
ⓘ$202.3M
Option Notional
ⓘ$3.8M
$3.8M puts / $0 calls
Holdings
17
Latest Filing
2026-03-31
Filing Quarter
Q1 2026
Portfolio Overview
Twin Securities, Inc. disclosed 17 positions worth $206.1M in its Form 13F-HR for Q1 2026 — $202.3M in common stock plus $3.8M of put/call option positions (reported at underlying notional value, not premium at risk), led by $EA (ELECTRONIC ARTS INC.) at 45.0% of the equity portfolio, followed by $WBD and $CWAN. During the quarter the fund opened 8 new positions and exited 8 — including a new stake in $ACLX and a full exit from $CYBR. The portfolio is most concentrated in Technology (60.0% of disclosed assets). All figures are sourced directly from Twin Securities, Inc.’s Form 13F-HR filing with the SEC under CIK 1351351.
AI Fund Analysis
StableSector Allocation
AUM History
Top Equity Holdings by Value
Option Positions
13F rules report options at the value of the underlying shares (notional) — not the premium paid or capital at risk. Shown separately from the equity sleeve above.
Quarterly Activity — Q1 2026
Click any card to unlockTop Holdings
- 71.1#276
Quality
$91.1M446,948 sh - 42.1#1,870
Quality
$35.7M1,299,915 sh - 50.2#1,468
Quality
$27.5M1,164,090 sh - 62.3
Quality
$13.5M179,036 sh - 60.2
Quality
$8.3M480,517 sh - 6.7
Quality
$6.2M53,982 sh - —
Quality
$6.1M115,958 sh - 63.9
Quality
$5.1M127,440 sh - $3.8M39,000 sh
- —
Quality
$3.8M38,593 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
 ELECTRONIC ARTS INC.$EA | 71.1#276 | $91.1M | 446,948 |
 Warner Bros. Discovery, Inc.$WBD | 42.1#1,870 | $35.7M | 1,299,915 |
 Clearwater Analytics Holdings, Inc.$CWAN | 50.2#1,468 | $27.5M | 1,164,090 |
 HOLOGIC INC$HOLX | 62.3 | $13.5M | 179,036 |
 Kenvue Inc.$KVUE | 60.2 | $8.3M | 480,517 |
 Arcellx, Inc.$ACLX | 6.7 | $6.2M | 53,982 |
 Terns Pharmaceuticals, Inc.$TERN | — | $6.1M | 115,958 |
 Apellis Pharmaceuticals, Inc.$APLS | 63.9 | $5.1M | 127,440 |
 Revolution Medicines, Inc.$RVMDPUT | — | $3.8M | 39,000 |
| Revolution Medicines, Inc.$RVMD | — | $3.8M | 38,593 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of Twin Securities, Inc.'s 17 positions.
Showing top 10 of 17 holdings.
Sector Allocation
Technology
$121.4M
Healthcare
$36.2M
Communication Services
$35.9M
Consumer Staples
$8.3M
Industrials
$508,891
Full Holdings — Twin Securities, Inc. (Q1 2026)
All 17 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | $EA | ELECTRONIC ARTS INC. | $91.1M | 45.0% | +86% | 71.1 |
| 2 | $WBD | Warner Bros. Discovery, Inc. | $35.7M | 17.6% | +17% | 42.1 |
| 3 | $CWAN | Clearwater Analytics Holdings, Inc. | $27.5M | 13.6% | +2261% | 50.2 |
| 4 | $HOLX | HOLOGIC INC | $13.5M | 6.7% | +112% | 62.3 |
| 5 | $KVUE | Kenvue Inc. | $8.3M | 4.1% | +18% | 60.2 |
| 6 | $ACLX | Arcellx, Inc. | $6.2M | 3.1% | NEW | 6.7 |
| 7 | $TERN | Terns Pharmaceuticals, Inc. | $6.1M | 3.0% | NEW | — |
| 8 | $APLS | Apellis Pharmaceuticals, Inc. | $5.1M | 2.5% | NEW | 63.9 |
| 9 | $RVMDPUT | Revolution Medicines, Inc. | $3.8M | — | NEW | — |
| 10 | $RVMD | Revolution Medicines, Inc. | $3.8M | 1.9% | NEW | — |
| 11 |  $OS | OneStream, Inc. | $1.4M | 0.7% | NEW | 41 |
| 12 |  $TTWO | TAKE TWO INTERACTIVE SOFTWARE INC | $1.3M | 0.6% | NEW | 47.2 |
| 13 |  $DAWN | Day One Biopharmaceuticals, Inc. | $678,061 | 0.3% | NEW | 42.6 |
| 14 |  $RNA | Avidity Biosciences, Inc. | $667,337 | 0.3% | -86% | 22.3 |
| 15 |  $TIC | TIC Solutions, Inc. | $508,891 | 0.3% | +0% | 45.7 |
| 16 |  $MANU | Manchester United plc | $250,954 | 0.1% | +2% | — |
| 17 |  $SGRY | Surgery Partners, Inc. | $119,498 | 0.1% | -94% | 48 |
New Positions (8)
Browse Top Institutional Investors
13F Pro tracks 8,700+ institutional investors filing 13F reports with the SEC.
to search all 8,700+ institutional filers.
Available Analysis
13F Pro tracks comprehensive institutional data for Twin Securities, Inc. including:
Track Twin Securities, Inc.'s Full Portfolio
See every holding, quarter-over-quarter changes, sector allocation, and accumulation patterns for Twin Securities, Inc. and 8,700+ other institutional investors.
Free tier includes full 13F search and fund profiles. Pro starts at $6.67/mo (billed annually).
AI-Powered Hedge Fund Analysis: Twin Securities, Inc.
13F Pro is an AI hedge fund tracker and stock research platform. For Twin Securities, Inc. (SEC CIK: 1351351), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
Every holding in Twin Securities, Inc.'s portfolio is scored on a 32-signal AI quality ranking (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.