Twin Securities, Inc.
- SEC CIK
- 0001351351
- Latest filing
- Aug 14, 2026
Holdings in Q3 2021
Holdings as of Sep 30, 2021, filed Nov 15, 2021. Long positions only; changes compare share counts with Q2 2021.
- Positions
- 16
- −2 vs. Q2 2021
- Portfolio value
- $146.3M
- −$118.3M (−44.7%) vs. Q2 2021
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| KSUKansas City Southern | COM NEW | 273,375 | $74.0M | 50.6% | +228,637+511.1% | Added | History |
| WTWWillis Towers Watson PLC | SHS | 86,379 | $20.1M | 13.7% | +86,379 | New | History |
| XLNXXilinx Inc | COM | 123,218 | $18.6M | 12.7% | +20,500+20.0% | Added | History |
| ADIAnalog Devices Inc | Stock | 90,244 | $15.1M | 10.3% | +90,244 | New | History |
| STMPStamps.com Inc | COM NEW | 15,000 | $4.95M | 3.4% | +15,000 | New | History |
| NUANNuance Communications, Inc. | COM | 55,000 | $3.03M | 2.1% | +55,000 | New | History |
| XECCimarex Energy Co | COM | 26,001 | $2.27M | 1.5% | +26,001 | New | History |
| HRCHill-Rom Holdings, Inc. | COM | 13,584 | $2.04M | 1.4% | +13,584 | New | History |
| INFOIHS Markit Ltd. | SHS | 15,000 | $1.75M | 1.2% | +15,000 | New | History |
| VNEArriver Holdco, Inc. | COM | 47,596 | $1.62M | 1.1% | +47,596 | New | History |
| CONECyrusOne Holdco LLC | COM | 20,000 | $1.55M | 1.1% | +20,000 | New | History |
| FIVNFive9, Inc. | COM | 4,700 | $751.0K | 0.5% | +4,700 | New | History |
| Alight, Inc. / Delaware01626W119 | Warrant / Rights | 91,246 | $278.0K | 0.2% | +91,246 | New | – |
| ScION Tech Growth IG31067120 | UNIT 12/17/2025 | 10,899 | $109.0K | 0.1% | 00.0% | Unchanged | – |
| Avanti Acquisition CorpG0682V109 | SHS CL A | 10,000 | $98.0K | 0.1% | 00.0% | Unchanged | – |
| Cohn Robbins Holdings CorpG23726105 | COM CL A | 10,000 | $98.0K | 0.1% | 00.0% | Unchanged | – |
Options (3)
Puts and calls in the same filing. Amounts are the market value of the underlying shares, which is what 13F reports.
Sold out since Q2 2021 (13)
Positions held at the end of Q2 2021 that are gone from this filing.
| Security | Class | Shares in Q2 2021 | Value in Q2 2021 | % of portfolio in Q2 2021 | History |
|---|---|---|---|---|---|
| WORKSlack Technologies, Inc. | COM CL A | 1,963,061 | $87.0M | 32.9% | History |
| ALXNAlexion Pharmaceuticals, Inc. | COM | 353,881 | $65.0M | 24.6% | History |
| MXIMMaxim Integrated Products Inc | COM | 616,245 | $64.9M | 24.5% | History |
| PFPTProofpoint Inc | COM | 55,867 | $9.71M | 3.7% | History |
| GRAW R Grace & Co | COM | 55,227 | $3.82M | 1.4% | History |
| WBTWelbilt, Inc. | COM | 87,330 | $2.02M | 0.8% | History |
| PRAHPRA Health Sciences, Inc. | COM | 11,075 | $1.83M | 0.7% | History |
| TGTXTG Therapeutics, Inc. | COM | 17,500 | $679.0K | 0.3% | History |
| Foley Trasimene Acquistn Cor34431F112 | *W EXP 05/26/202 | 256,560 | $534.0K | 0.2% | – |
| SPNVSpinnova Plc | COM CL A | 50,060 | $497.0K | 0.2% | History |
| AAMCAltisource Asset Management Corp | COM | 24,781 | $477.0K | 0.2% | History |
| ACRSAclaris Therapeutics, Inc. | COM | 12,500 | $220.0K | 0.1% | History |
| CHP Merger Corp.12558Y106 | COM CL A | 11,708 | $116.0K | <0.1% | – |