Latest filing published 29 Apr 2026 for Zenas BioPharma, Inc., €384k.
Filing timeline
BuySaleInsider track record
Closed purchases
Based on 20 purchases whose 90-day window has closed (published at least 91 days ago), the same population our ranking model reads.
Purchases by company
Since each purchase
- +46.1%Entry US$19.32 · Close 22 Oct 2026 US$28.23
- +38.7%Entry US$20.36 · Close 22 Oct 2026 US$28.23
- +36.6%Entry US$20.66 · Close 22 Oct 2026 US$28.23
- +42.7%Entry US$19.78 · Close 22 Oct 2026 US$28.23
- -38.3%Entry US$26.59 · Close at T+90 US$16.41
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Leon O. Moulder Jr.: trading record in brief
Leon O. Moulder Jr. (board member) discloses dealings in 8 companies, chiefly Zenas BioPharma, Inc., TESARO, Inc. and MGI Pharma Inc. We count 70 filings; the first trade dates from 15 July 2006 and the latest from 29 April 2026.
No open-market sale appears; the market trades are 30 purchases worth €6.8M. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Outside the open market, there are 18 share grants and 5 option exercises. So far in 2026, the count stands at 8 purchases and no sales.
Half of the purchases are above €102k and half below. On 10 out of 23 purchases, another insider of the same company was buying within the same 30 days. Purchases made close together by different insiders form what is called a cluster. After 20 purchases with a full 90-day history, the hit rate stands at 55% and the median 90-day move at +1.9%. Past outcomes like these are no guarantee of what comes next.
On 29 April 2026 came the latest disclosure, an open-market purchase for €384k in Zenas BioPharma, Inc. The median gap between a trade and its publication by SEC (Form 4) is 2 days. For comparison, the SEC allows two business days to file a Form 4. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Companies and markets linked to Leon O. Moulder Jr.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
- 25,000 shares@ US$18.020.023% mcap8.2% of flowCommon StockSEC:0001104659-26-051889:0Canonical exit: 27 Jul 2026 (T+90)
- 35,000 shares@ US$17.620.031% mcap11.2% of flowCommon StockSEC:0001104659-26-051889:1Canonical exit: 28 Jul 2026 (T+90)
- 20,000 shares@ US$18.236.8% of flowCommon StockSEC:0001104659-26-038031:0Canonical exit: 28 Jun 2026 (T+90)
- 34,000 shares@ US$19.3112.1% of flowCommon StockSEC:0001104659-26-038031:1Canonical exit: 29 Jun 2026 (T+90)
- 57,000 shares@ US$17.9618.4% of flowCommon StockSEC:0001104659-26-009756:0Canonical exit: 3 May 2026 (T+90)
- 30,000 shares@ US$16.306.9% of flowCommon StockSEC:0001104659-26-002589:1Canonical exit: 8 Apr 2026 (T+90)
- 20,000 shares@ US$16.554.7% of flowCommon StockSEC:0001104659-26-002589:2Canonical exit: 9 Apr 2026 (T+90)
- 50,000 shares@ US$16.3814.9% of flowCommon StockSEC:0001104659-26-002589:0Canonical exit: 7 Apr 2026 (T+90)
- 36,928 shares@ US$20.8514.0% of flowCommon StockSEC:0001104659-25-098413:0Canonical exit: 5 Jan 2026 (T+90)
- 10,831 shares0American Depositary SharesSEC:0000905148-25-002219:0
- 25,000 shares@ US$6.673.4% of flowCommon StockSEC:0001104659-25-015145:0Canonical exit: 19 May 2025 (T+90)
- 45,000 shares@ US$9.987.1% of flowCommon StockSEC:0001104659-24-125677:1Canonical exit: 4 Mar 2025 (T+90)
- 25,000 shares@ US$10.765.4% of flowCommon StockSEC:0001104659-24-125677:0Canonical exit: 3 Mar 2025 (T+90)
- 2,500 shares@ US$14.570.6% of flowCommon StockSEC:0001104659-24-121081:1Canonical exit: 17 Feb 2025 (T+90)
- 7,500 shares@ US$15.002.3% of flowCommon StockSEC:0001104659-24-121081:0Canonical exit: 16 Feb 2025 (T+90)
- 5,000 shares@ US$17.891.3% of flowCommon StockSEC:0001104659-24-101773:1Canonical exit: 18 Dec 2024 (T+90)
- 2,367 shares@ US$17.880.6% of flowCommon StockSEC:0001104659-24-101773:2Canonical exit: 19 Dec 2024 (T+90)
- 2,633 shares@ US$18.970.7% of flowCommon StockSEC:0001104659-24-101773:3Canonical exit: 19 Dec 2024 (T+90)
- 10,000 shares@ US$17.913.4% of flowCommon StockSEC:0001104659-24-101773:0Canonical exit: 17 Dec 2024 (T+90)
- 108,381 sharesCommon StockSEC:0001104659-24-100765:1
- 372,017 sharesCommon StockSEC:0001104659-24-100765:2
- 48,254 sharesCommon StockSEC:0001104659-24-100765:3
- 164,523 sharesCommon StockSEC:0001104659-24-100765:0
- 108,381 sharesCommon StockSEC:0001104659-24-100325:1
- 372,017 sharesCommon StockSEC:0001104659-24-100325:2
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