Twin Securities, Inc.

SEC CIK: 0001351351
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

NATI holding history

National Instruments Corp in every 13F filed by Twin Securities, Inc., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

NATI overview All 13F holders of NATI Full Q2 2026 holdings

Shares (Q3 2023): 0; Sold out in Q3 2023
Value: $0
% of portfolio: 0.0%
Quarters held: 2; Since Q1 2023

Holdings of NATI by Twin Securities, Inc., by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q3 2023	0	$0	0.0%	−60,220−100.0%	Sold out	Holders
Q2 2023	60,220	$3.46M	2.7%	−705,023−92.1%	Reduced	Holders
Q1 2023	765,243	$40.1M	22.1%	+765,243	New	Holders