Insider trades appear within seconds, the rest within the hour.

Get alerts

← Feed

SPRONasdaq

Spero Therapeutics, Inc.

Alert me on SPRO
0
Insider buys, 6 months
0
Congress trades, 6 months
0
Signals, 6 months

Six months

After each filing

8
May 7 Sale Rajavelu Esther Insider
1 week
+10.0%S&P +2.3%
1 month
+9.2%S&P +1.0%
3 months
−49.8%S&P +6.0%
6 months
−59.4%S&P +0.7%
Feb 10 Sale Keutzer Timothy Insider
1 week
−1.3%S&P −0.8%
1 month
+9.7%S&P −3.8%
3 months
+7.6%S&P +7.0%
6 months
−49.6%S&P +12.2%
Feb 10 Sale Rajavelu Esther Insider
1 week
−1.3%S&P −0.8%
1 month
+9.7%S&P −3.8%
3 months
+7.6%S&P +7.0%
6 months
−49.6%S&P +12.2%
Feb 5 Sale Keutzer Timothy Insider
1 week
+3.5%S&P +0.5%
1 month
+0.9%S&P +0.1%
3 months
+9.1%S&P +8.3%
6 months
−45.2%S&P +14.7%
Feb 5 Sale Rajavelu Esther Insider
1 week
+3.5%S&P +0.5%
1 month
+0.9%S&P +0.1%
3 months
+9.1%S&P +8.3%
6 months
−45.2%S&P +14.7%
Show all 8
Nov 13, 2025 Sale Rajavelu Esther Insider
1 week
−7.4%S&P −2.9%
1 month
−6.1%S&P +1.3%
3 months
−3.7%S&P +1.9%
6 months
+5.7%S&P +10.5%
Sep 3, 2025 Sale Mahadevia Ankit Insider
1 week
−6.7%S&P +1.3%
1 month
−2.4%S&P +4.2%
3 months
+5.8%S&P +6.2%
6 months
+10.1%S&P +6.4%
Sep 3, 2025 Sale Keutzer Timothy Insider
1 week
−6.7%S&P +1.3%
1 month
−2.4%S&P +4.2%
3 months
+5.8%S&P +6.2%
6 months
+10.1%S&P +6.4%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for SPRO

16 held · newest 516 held · newest 2
Loading the filings.
See all 16 filings for SPRO

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal
No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters
No lobbying reports on file.