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Total declarations
Company
▲ Purchases (13 ops.)
▼ Sales (2 ops.)
Latest filing published 07 Aug 2026 for Cryo Cell International INC, €694k. Read the official filing
Filing timeline
BuySaleDavid Portnoy
Insider track record
Disclosed 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
David Portnoy: trading record in brief
David Portnoy, listed as chief executive, appears in our data through filings on Cryo Cell International Inc shares, published by SEC (Form 4). In total, 26 filings cover trades dated from 8 January 2016 to 5 August 2026.
Market trades split into 13 purchases (€131k) and 2 sales (€39k). On balance, insiders were net buyers of €92k. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Besides market trades, the filings include 5 share grants and 3 option exercises.
Half of the purchases are above €6,920 and half below. The 13 purchases reviewed show no overlap with other insiders buying the same stock within a month.
Most recently, on 7 August 2026, the filings show a transaction worth €694k in Cryo Cell International Inc. The clock since the last published purchase (18 September 2025) now reads 395 days. The median gap between a trade and its publication by SEC (Form 4) is 2 days. Section 16 rules allow two business days to file each Form 4. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Companies and markets linked to David Portnoy
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
