InsidersTradesSigma
Total declarations
Company
▲ Purchases (13 ops.)
▼ Sales (2 ops.)
Insider track record
CEODisclosed buys
13
Disclosed sells
2
T+90 hit rate
100%
T+90 mean return
+29.0%
Across 5 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the detailed record of transactions filed by Portnoy David, Chief Executive Officer. Director active across 1 company, notably Cryo Cell International INC. Aggregated, 26 filings have been logged. Breakdown: 13 buys · 2 sells. Total volume traded: €171k. Activity tracked since 3 May 2021. The latest transaction was disclosed on 5 August 2026 (J). Regulator: SEC (Form 4). All data is openly available.
Companies and markets linked to Portnoy David
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations26 total
600,191 shares@ US$1.3329Common StockSEC:0001193125-26-340392:0
600,191 shares@ US$1.3329Common StockSEC:0001193125-26-340392:1
289 shares@ US$4.000.1% of flowCommon StockSEC:0001193125-25-293823:0
1,429 shares@ US$4.000.6% of flowCommon StockSEC:0001193125-25-288306:0
1,026 shares@ US$4.180.4% of flowCommon StockSEC:0001193125-25-277890:0
4,666 shares@ US$4.452.1% of flowCommon StockSEC:0001193125-25-265046:0
6,449 shares@ US$4.462.9% of flowCommon StockSEC:0001193125-25-207528:0
Canonical exit: 15 Dec 2025 (T+90)
5,271 shares@ US$4.312.4% of flowCommon StockSEC:0000950170-25-114029:0
Canonical exit: 7 Dec 2025 (T+90)
15,611 shares0Common StockSEC:0000950170-25-112560:0
4,500 shares@ US$4.652.3% of flowCommon StockSEC:0000950170-25-111745:0
Canonical exit: 23 Nov 2025 (T+90)
2,671 shares@ US$4.501.3% of flowCommon StockSEC:0000950170-25-110173:0
Canonical exit: 13 Nov 2025 (T+90)
5,826 shares@ US$4.17192.7% of flowCommon StockSEC:0000950170-25-109852:0
Canonical exit: 12 Nov 2025 (T+90)
516 shares@ US$4.900.2% of flowCommon StockSEC:0001209191-22-058194:0
Canonical exit: 15 Feb 2023 (T+90)
3,000 shares@ US$4.791.1% of flowCommon StockSEC:0001209191-22-057065:0
5,000 shares@ US$5.052.0% of flowCommon StockSEC:0001209191-22-056434:0
70,270 shares@ US$3.1417.9% of flowCommon StockSEC:0001209191-22-047883:0
67,816 shares@ US$2.9019.3% of flowCommon StockSEC:0001209191-21-053500:0
158 shares@ US$9.450.1% of flowCommon StockSEC:0001209191-21-048202:0
Canonical exit: 21 Oct 2021 (T+90)
100 shares@ US$9.2350.1% of flowCommon StockSEC:0001209191-21-047409:0
Canonical exit: 17 Oct 2021 (T+90)
946 shares@ US$8.650.8% of flowCommon StockSEC:0001209191-21-036311:0
Canonical exit: 25 Aug 2021 (T+90)
200,000 shares@ US$1.7232.4% of flowCommon StockSEC:0001209191-21-035964:0
1,000 shares@ US$8.460.8% of flowCommon StockSEC:0001209191-21-035737:0
Canonical exit: 19 Aug 2021 (T+90)
2,000 shares@ US$8.551.6% of flowCommon StockSEC:0001209191-21-033857:0
Canonical exit: 11 Aug 2021 (T+90)
457 shares@ US$8.450.4% of flowCommon StockSEC:0001209191-21-032094:0
Canonical exit: 8 Aug 2021 (T+90)
446 shares@ US$8.500.4% of flowCommon StockSEC:0001209191-21-030364:0
Canonical exit: 1 Aug 2021 (T+90)
25 of 26 declarations
About Portnoy David
PORTNOY DAVID is Président, Co-Directeur Général and is linked to Cryo Cell International INC (XNAS) as Chairman, Co-CEO. The block records 24 filings, and across the 24 sampled filings, buys amount to EUR 131316 and sells to EUR 39302, between 2016-02-02 and 2025-11-24. The most frequent transaction nature is Acquisition.
